首页 > 最新文献

Biologia Plantarum最新文献

英文 中文
Abscisic acid affects the floret numbers of inflorescence by regulating indole-3-acetic acid transport and accumulation in Lavandula angustifolia 脱落酸通过调节薰衣草中吲哚-3-乙酸的转运和积累影响花序小花数
IF 1.5 4区 生物学 Q4 PLANT SCIENCES Pub Date : 2022-12-17 DOI: 10.32615/bp.2022.032
H. P. Hao, Y. M. Dong, X. P. Zhu, H. T. Bai, LI H., J. Gong, A. Farooq, L. Shi
,
{"title":"Abscisic acid affects the floret numbers of inflorescence by regulating indole-3-acetic acid transport and accumulation in Lavandula angustifolia","authors":"H. P. Hao, Y. M. Dong, X. P. Zhu, H. T. Bai, LI H., J. Gong, A. Farooq, L. Shi","doi":"10.32615/bp.2022.032","DOIUrl":"https://doi.org/10.32615/bp.2022.032","url":null,"abstract":",","PeriodicalId":8912,"journal":{"name":"Biologia Plantarum","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47677885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Responses of Lilium hybrid 'Brindisi' to varying periods of waterlogging at vegetative stages 百合花'Brindisi'对营养期不同时期涝渍的响应
IF 1.5 4区 生物学 Q4 PLANT SCIENCES Pub Date : 2022-12-13 DOI: 10.32615/bp.2022.031
M. Chen, Gongping Nie, L. Yang, L. X., Y. Cai, Y. Zhang
dehydrogenase; AMY3
脱氢酶;AMY3
{"title":"Responses of Lilium hybrid 'Brindisi' to varying periods of waterlogging at vegetative stages","authors":"M. Chen, Gongping Nie, L. Yang, L. X., Y. Cai, Y. Zhang","doi":"10.32615/bp.2022.031","DOIUrl":"https://doi.org/10.32615/bp.2022.031","url":null,"abstract":"dehydrogenase; AMY3","PeriodicalId":8912,"journal":{"name":"Biologia Plantarum","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46838650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transcriptomic and proteomic profile approaches toward drought and salinity stresses 干旱和盐度胁迫的转录组学和蛋白质组学研究
IF 1.5 4区 生物学 Q4 PLANT SCIENCES Pub Date : 2022-11-02 DOI: 10.32615/bp.2022.035
K. Goharrizi, S. Karami, M. Hamblin, M. Momeni, T. Basaki, M. Dehnavi, M. Nazari
Drought and salinity, which can alter the water balance, disrupt the ionic equilibrium, and create reactive oxygen species (ROS), are capable of destroying plant tissues. In this study, transcriptomics, proteomics, and metabolomics have been used to elucidate various abiotic stress responses. In transcriptional signaling pathways, abscisic acid (ABA) is one of the plant phytohormones that regulate the stress response. On the other hand, several regulons and factors of transcription contributed in the reaction to osmotic stresses, as well as in ABA-dependent/independent signaling pathways. However, the findings display that intricate molecular reaction of plants under stress conditions may be controlled by complicated regulative networks of gene expression and signal transduction, as well as by the interaction between them. From the point of view of proteomics, protein modifications in response to stress can be considered as a molecular tool to improve the resistance of plants to environmental stresses. These studies have provided new information about the significance of several gene and protein networks involved in the response of plants to salinity and drought, and the induction of tolerance. Moreover, identifying the crucial pathways which are involved in salinity and drought resistance can open doors for the establishment of commercial-resistant crop cultivars, and might be very useful in the next-generation crop breeding strategies to produce plants with salinity and drought-resistant traits.
干旱和盐度会改变水分平衡,破坏离子平衡,产生活性氧(ROS),从而破坏植物组织。在这项研究中,转录组学、蛋白质组学和代谢组学已被用于阐明各种非生物应激反应。在转录信号通路中,脱落酸(ABA)是调控胁迫反应的植物激素之一。另一方面,一些调控因子和转录因子参与了对渗透胁迫的反应,以及aba依赖/独立的信号通路。然而,这些研究结果表明,植物在逆境条件下复杂的分子反应可能受到复杂的基因表达和信号转导调控网络的控制,以及它们之间的相互作用。从蛋白质组学的角度来看,蛋白质对胁迫的修饰可以被认为是提高植物对环境胁迫抗性的分子工具。这些研究提供了一些基因和蛋白质网络在植物对盐和干旱的反应以及诱导耐受性中的重要意义的新信息。此外,确定盐和干旱抗性的关键途径可以为建立商业抗性作物品种打开大门,并可能对培育具有盐和干旱抗性性状的下一代作物育种策略非常有用。
{"title":"Transcriptomic and proteomic profile approaches toward drought and salinity stresses","authors":"K. Goharrizi, S. Karami, M. Hamblin, M. Momeni, T. Basaki, M. Dehnavi, M. Nazari","doi":"10.32615/bp.2022.035","DOIUrl":"https://doi.org/10.32615/bp.2022.035","url":null,"abstract":"Drought and salinity, which can alter the water balance, disrupt the ionic equilibrium, and create reactive oxygen species (ROS), are capable of destroying plant tissues. In this study, transcriptomics, proteomics, and metabolomics have been used to elucidate various abiotic stress responses. In transcriptional signaling pathways, abscisic acid (ABA) is one of the plant phytohormones that regulate the stress response. On the other hand, several regulons and factors of transcription contributed in the reaction to osmotic stresses, as well as in ABA-dependent/independent signaling pathways. However, the findings display that intricate molecular reaction of plants under stress conditions may be controlled by complicated regulative networks of gene expression and signal transduction, as well as by the interaction between them. From the point of view of proteomics, protein modifications in response to stress can be considered as a molecular tool to improve the resistance of plants to environmental stresses. These studies have provided new information about the significance of several gene and protein networks involved in the response of plants to salinity and drought, and the induction of tolerance. Moreover, identifying the crucial pathways which are involved in salinity and drought resistance can open doors for the establishment of commercial-resistant crop cultivars, and might be very useful in the next-generation crop breeding strategies to produce plants with salinity and drought-resistant traits.","PeriodicalId":8912,"journal":{"name":"Biologia Plantarum","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46527124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transcriptomic and proteomic mechanisms underlying cold tolerance in plants 植物耐寒性的转录组学和蛋白质组学机制
IF 1.5 4区 生物学 Q4 PLANT SCIENCES Pub Date : 2022-10-03 DOI: 10.32615/bp.2022.030
K. Goharrizi, S. Karami, T. Basaki, M. Dehnavi, M. Nejat, M. Momeni, G. Meru
leucine activator catalase; C-repeat binding C-repeat binding factor/dehydration- calcineurin B-like glycoproteins; Acknowledgements : The present study Conflict of interest : The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. Abstract Abiotic stress is one of the major challenges facing crop production globally. Abiotic stress resulting from low temperature is a major limitation to crop production, especially in the temperate regions of the world. Cold stress not only influence crop development and reduce yields, but also curtail the efficient distribution of agricultural products worldwide. An understanding of the molecular mechanisms underlying cold stress tolerance is important for the development of strategies to manage crop loss and improve yield. In this review, we explore the major molecular mechanisms involved in plant cold tolerance, including recent discoveries on interrelated gene networks and regulatory mechanisms for cold stress adaptation in crops. Further, we highlight the role of proteomics in the discovery of proteins involved in key signaling pathways, including late embryogenesis-abundant proteins, antifreeze proteins, cold-regulated proteins, heat shock proteins, and pathogenesis-related proteins. The role of these proteins, and their relative abundance in physiological-biochemical reactions, are discussed and key candidate proteins for plant genetic enhancement are suggested.
亮氨酸激活剂过氧化氢酶;C-环结合C-环结合因子/脱水-钙调神经磷酸酶B-样糖蛋白;鸣谢:本研究的利益冲突:作者声明,他们没有已知的竞争性经济利益或个人关系,这些利益或关系可能会影响本文报道的工作。摘要非生物胁迫是全球作物生产面临的主要挑战之一。低温引起的非生物胁迫是作物生产的主要限制,尤其是在世界温带地区。冷胁迫不仅影响作物发育和产量,而且限制了农产品在全球范围内的有效分配。了解抗寒性的分子机制对于制定控制作物损失和提高产量的策略至关重要。在这篇综述中,我们探讨了植物抗寒性的主要分子机制,包括最近发现的相关基因网络和作物冷胁迫适应的调控机制。此外,我们强调了蛋白质组学在发现参与关键信号通路的蛋白质中的作用,包括胚胎发生后期丰富的蛋白质、防冻蛋白、冷调节蛋白、热休克蛋白和发病机制相关蛋白。讨论了这些蛋白质的作用及其在生理生化反应中的相对丰度,并提出了植物遗传增强的关键候选蛋白质。
{"title":"Transcriptomic and proteomic mechanisms underlying cold tolerance in plants","authors":"K. Goharrizi, S. Karami, T. Basaki, M. Dehnavi, M. Nejat, M. Momeni, G. Meru","doi":"10.32615/bp.2022.030","DOIUrl":"https://doi.org/10.32615/bp.2022.030","url":null,"abstract":"leucine activator catalase; C-repeat binding C-repeat binding factor/dehydration- calcineurin B-like glycoproteins; Acknowledgements : The present study Conflict of interest : The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. Abstract Abiotic stress is one of the major challenges facing crop production globally. Abiotic stress resulting from low temperature is a major limitation to crop production, especially in the temperate regions of the world. Cold stress not only influence crop development and reduce yields, but also curtail the efficient distribution of agricultural products worldwide. An understanding of the molecular mechanisms underlying cold stress tolerance is important for the development of strategies to manage crop loss and improve yield. In this review, we explore the major molecular mechanisms involved in plant cold tolerance, including recent discoveries on interrelated gene networks and regulatory mechanisms for cold stress adaptation in crops. Further, we highlight the role of proteomics in the discovery of proteins involved in key signaling pathways, including late embryogenesis-abundant proteins, antifreeze proteins, cold-regulated proteins, heat shock proteins, and pathogenesis-related proteins. The role of these proteins, and their relative abundance in physiological-biochemical reactions, are discussed and key candidate proteins for plant genetic enhancement are suggested.","PeriodicalId":8912,"journal":{"name":"Biologia Plantarum","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44294269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Modulation of tomato root architecture and root hair traitsby Pseudomonas brassicacearum and Variovorax paradoxus containing 1-aminocyclopropane-1-carboxylate deaminase 含1-氨基环丙烷-1-羧酸脱氨酶的青花假单胞菌和异花椒对番茄根构和根毛性状的调控
IF 1.5 4区 生物学 Q4 PLANT SCIENCES Pub Date : 2022-09-17 DOI: 10.32615/bp.2022.025
A. Belimov, P. Ulianich, D. Syrova, A. Shaposhnikov, V. Safronova, I. Dodd
By decreasing root 1-aminocyclopropane-1-carboxylate (ACC) content and plant ethylene production, the microbial enzyme ACC deaminase is a widespread beneficial trait of plant growth-promoting rhizobacteria (PGPR), ameliorating ethylene-mediated root growth inhibition. However, relatively little is known about whether bacterial ACC deaminase modulates root architecture and root hair traits. Thus the dwarf tomato ( Solanum lycopersicum ) cultivar Micro-Tom was inoculated in vitro with Pseudomonas brassicacearum Am3, its ACC deaminase deficient mutant T8-1, a known PGPR strain Variovorax paradoxus 5C-2 or chemically treated with agents that promoted or inhibited ethylene production or sensitivity (Ag + , Co 2+ , and ACC). ACC treatment reduced both root elongation and the number of lateral roots, while ethylene inhibitors (Ag + , Co 2+ ) and V. paradoxus 5C-2 promoted primary root elongation, but differentially affected lateral root length and number. Ag + stimulated lateral root development, while Co 2+ and V. paradoxus 5C-2 did not. Inoculation with P. brassicacearum Am3 and T8-1 inhibited elongation of the primary and lateral roots at a high inoculum concentration (10 6 cells cm 3 ). All bacterial strains significantly increased the length and number of root hairs, with these effects more pronounced in P. brassicacearum Am3 than in the mutant T8-1. Treatment with Ag + inhibited root hair formation and elongation, while Co 2+ had the opposite effects. ACC treatment had no effect on root hair elongation but increased root hair density. While root growth inhibition caused by P. brassicacearum Am3 was independent of ACC deaminase, the promotion of root hair elongation and density by this strain was augmented by ACC deaminase activity. Thus ACC deaminase can modulate the morphological impacts of bacteria on root hair response by affecting plant ethylene content.
微生物酶ACC脱氨酶通过降低根系1-氨基环丙烷-1-羧酸盐(ACC)含量和植物乙烯产量,是促进植物生长的根细菌(PGPR)的一种广泛的有益特性,可以改善乙烯介导的根系生长抑制。然而,关于细菌ACC脱氨酶是否调节根系结构和根毛性状,目前知之甚少。因此,矮化番茄(Solanum lycopersicum)栽培品种Micro Tom在体外接种假单胞菌brassicacearum Am3、其ACC脱氨酶缺陷突变体T8-1、已知的PGPR菌株Variovorax paradoxus 5C-2,或用促进或抑制乙烯产生或敏感性的试剂(Ag+、Co2+和ACC)进行化学处理。ACC处理降低了根伸长和侧根数量,而乙烯抑制剂(Ag+,Co2+)和V.paradous 5C-2促进了主根伸长,但对侧根长度和数量的影响不同。Ag+对侧根发育有促进作用,而Co2+和V.paradous 5C-2则没有。用P.brassicacearum Am3和T8-1接种在高接种浓度(10 6个细胞cm 3)下抑制主根和侧根的伸长。所有菌株都显著增加了根毛的长度和数量,其中这些影响在甘蓝型油菜Am3中比在突变体T8-1中更明显。Ag+处理抑制根毛的形成和伸长,而Co2+处理则相反。ACC处理对根毛伸长没有影响,但增加了根毛密度。虽然甘蓝型油菜Am3引起的根系生长抑制与ACC脱氨酶无关,但ACC脱氨蛋白酶活性增强了该菌株对根毛伸长和密度的促进作用。因此ACC脱氨酶可以通过影响植物乙烯含量来调节细菌对根毛反应的形态学影响。
{"title":"Modulation of tomato root architecture and root hair traitsby Pseudomonas brassicacearum and Variovorax paradoxus containing 1-aminocyclopropane-1-carboxylate deaminase","authors":"A. Belimov, P. Ulianich, D. Syrova, A. Shaposhnikov, V. Safronova, I. Dodd","doi":"10.32615/bp.2022.025","DOIUrl":"https://doi.org/10.32615/bp.2022.025","url":null,"abstract":"By decreasing root 1-aminocyclopropane-1-carboxylate (ACC) content and plant ethylene production, the microbial enzyme ACC deaminase is a widespread beneficial trait of plant growth-promoting rhizobacteria (PGPR), ameliorating ethylene-mediated root growth inhibition. However, relatively little is known about whether bacterial ACC deaminase modulates root architecture and root hair traits. Thus the dwarf tomato ( Solanum lycopersicum ) cultivar Micro-Tom was inoculated in vitro with Pseudomonas brassicacearum Am3, its ACC deaminase deficient mutant T8-1, a known PGPR strain Variovorax paradoxus 5C-2 or chemically treated with agents that promoted or inhibited ethylene production or sensitivity (Ag + , Co 2+ , and ACC). ACC treatment reduced both root elongation and the number of lateral roots, while ethylene inhibitors (Ag + , Co 2+ ) and V. paradoxus 5C-2 promoted primary root elongation, but differentially affected lateral root length and number. Ag + stimulated lateral root development, while Co 2+ and V. paradoxus 5C-2 did not. Inoculation with P. brassicacearum Am3 and T8-1 inhibited elongation of the primary and lateral roots at a high inoculum concentration (10 6 cells cm 3 ). All bacterial strains significantly increased the length and number of root hairs, with these effects more pronounced in P. brassicacearum Am3 than in the mutant T8-1. Treatment with Ag + inhibited root hair formation and elongation, while Co 2+ had the opposite effects. ACC treatment had no effect on root hair elongation but increased root hair density. While root growth inhibition caused by P. brassicacearum Am3 was independent of ACC deaminase, the promotion of root hair elongation and density by this strain was augmented by ACC deaminase activity. Thus ACC deaminase can modulate the morphological impacts of bacteria on root hair response by affecting plant ethylene content.","PeriodicalId":8912,"journal":{"name":"Biologia Plantarum","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43776069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Glandular trichomes of medicinal plants: types, separation and purification, biological activities 药用植物腺毛:类型、分离纯化、生物学活性
IF 1.5 4区 生物学 Q4 PLANT SCIENCES Pub Date : 2022-09-06 DOI: 10.32615/bp.2022.027
H. M. Tang, Q. Jiang, H. Y. Liu, F. Zhang, Q. Liu, PU G.B., LI J., L. N. Wang, Y. Q. Zhang
Trichomes, one of the epidermal structures of medicinal plants, can be divided into two types according to whether they have a secretory function: glandular trichomes (GTs) and nonglandular trichomes (non-GTs) (Yu 2020). This article mainly elaborates on medicinal plant GTs because the tips of non-GTs lack synthesis and storage cells and do not synthesize and accumulate secondary metabolites. GTs, as an important epidermal tissue, are responsible for pollination and protection (Champagne and Boutry 2016). Some plant GTs release volatile compounds in the air. Some of these compounds are attractants for pollinators, some are repellents for herbivores and ineffective pollinators, and some are even attractants for natural enemies of herbivores (Jacek et al. 2018, Giuliani et al. 2020). Environmental conditions and seasonal changes affect the growth and development of GTs, leading to differences in the types, density, morphology, and inclusions of GTs. These differences may be related to environmental stress and the adaptive survival of plants (Li et al. 1949, Soliman et al. 2019). There are differences in the types, density, morphology, and inclusions of GTs in different plant species; thus, GTs can be used as one of the distinguishing characteristics of medicinal plants (Zhang et al. 2016, Guesmi et al. 2019). GTs, as a secretory tissue, have the remarkable characteristics of synthesizing, modifying, and storing a variety of medicinal active ingredients and contain a great complex of secondary metabolites, including terpenes, flavonoids, alkaloids, lignose, polysaccharides, glycosides, fatty acids, proteins, and alkaloids (Balcke et al. 2017, Konarska and Łotocka 2020). These secondary metabolites accumulate in GTs and have various
毛状体是药用植物表皮结构之一,根据其是否具有分泌功能可分为腺状毛状体(GTs)和非腺状毛状体(non-GTs)两种(Yu 2020)。本文主要阐述的是药用植物GTs,因为非GTs的尖端缺乏合成和储存细胞,不合成和积累次生代谢产物。gt作为一种重要的表皮组织,具有授粉和保护作用(Champagne and Boutry 2016)。一些植物的gt释放挥发性化合物到空气中。这些化合物中有些是对传粉者的引诱剂,有些是对食草动物和无效传粉者的驱避剂,有些甚至是对食草动物天敌的引诱剂(Jacek et al. 2018, Giuliani et al. 2020)。环境条件和季节变化会影响GTs的生长发育,导致GTs的类型、密度、形态和内含物的差异。这些差异可能与环境胁迫和植物的适应性生存有关(Li et al. 1949, Soliman et al. 2019)。不同植物种类的GTs在类型、密度、形态和内含物等方面存在差异;因此,GTs可以作为药用植物的显著特征之一(Zhang et al. 2016, Guesmi et al. 2019)。gt作为一种分泌组织,具有合成、修饰和储存多种药用活性成分的显著特性,并含有大量次生代谢产物,包括萜类、黄酮类、生物碱、木糖、多糖、糖苷、脂肪酸、蛋白质和生物碱等(Balcke et al. 2017, Konarska and Łotocka 2020)。这些次生代谢物在GTs中积累,并具有多种
{"title":"Glandular trichomes of medicinal plants: types, separation and purification, biological activities","authors":"H. M. Tang, Q. Jiang, H. Y. Liu, F. Zhang, Q. Liu, PU G.B., LI J., L. N. Wang, Y. Q. Zhang","doi":"10.32615/bp.2022.027","DOIUrl":"https://doi.org/10.32615/bp.2022.027","url":null,"abstract":"Trichomes, one of the epidermal structures of medicinal plants, can be divided into two types according to whether they have a secretory function: glandular trichomes (GTs) and nonglandular trichomes (non-GTs) (Yu 2020). This article mainly elaborates on medicinal plant GTs because the tips of non-GTs lack synthesis and storage cells and do not synthesize and accumulate secondary metabolites. GTs, as an important epidermal tissue, are responsible for pollination and protection (Champagne and Boutry 2016). Some plant GTs release volatile compounds in the air. Some of these compounds are attractants for pollinators, some are repellents for herbivores and ineffective pollinators, and some are even attractants for natural enemies of herbivores (Jacek et al. 2018, Giuliani et al. 2020). Environmental conditions and seasonal changes affect the growth and development of GTs, leading to differences in the types, density, morphology, and inclusions of GTs. These differences may be related to environmental stress and the adaptive survival of plants (Li et al. 1949, Soliman et al. 2019). There are differences in the types, density, morphology, and inclusions of GTs in different plant species; thus, GTs can be used as one of the distinguishing characteristics of medicinal plants (Zhang et al. 2016, Guesmi et al. 2019). GTs, as a secretory tissue, have the remarkable characteristics of synthesizing, modifying, and storing a variety of medicinal active ingredients and contain a great complex of secondary metabolites, including terpenes, flavonoids, alkaloids, lignose, polysaccharides, glycosides, fatty acids, proteins, and alkaloids (Balcke et al. 2017, Konarska and Łotocka 2020). These secondary metabolites accumulate in GTs and have various","PeriodicalId":8912,"journal":{"name":"Biologia Plantarum","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47910930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Overexpression of genes encoding enzymes involved in trehalose synthesis from Caragana korshinskii enhances drought tolerance of transgenic plants 柠条海藻糖合成相关酶基因的过表达增强转基因植物的抗旱性
IF 1.5 4区 生物学 Q4 PLANT SCIENCES Pub Date : 2022-09-04 DOI: 10.32615/bp.2022.023
X.Y. Huang, Y.-Y. Li, Ting Zhao, W-y Liu, Ying-na Feng, L. Wang, Y.-C. Ma, X.‐F. Lin
Abbreviations : ABA - abscisic acid; CAT - catalase; GUS - β-glucuronidase; MDA - malondialdehyde; POD - peroxidase; ROS reactive oxygen species; RWC - relative water content; SOD - superoxide dismutase; TPP - trehalose-6-phosphate phosphatase; TPS - trehalose-6-phosphate synthase; WT - wild type. Abstract Trehalose, which plays important roles in resistance to abiotic stresses and preservation of biological activity in plants, is synthesized by two key enzymes, trehalose-6-phosphate synthase (TPS) and trehalose-6-phosphate phosphatase (TPP). Therefore, the expressions of the TPS and TPP genes directly affect trehalose synthesis and stress resistance of plants. In this study, CkTPS and CkTPP from Caragana korshinskii were identified, and the role of trehalose synthesis in the adaptation of this desert plant to adverse conditions was investigated. Higher CkTPS and CkTPP expressions were observed in the roots, whereas expressions were much lower in leaves and stems, and their expressions were upregulated under drought stress. Histochemical analyses showed that β-glucuronidase expression driven by the CkTPS and CkTPP promoters was strongly induced by abiotic stresses and phytohormones, such as abscisic acid, gibberellin, methyl jasmonate, and mannitol, which suggests that trehalose synthesis may be regulated by various signaling pathways. To determine the functional mechanism underlying the role of trehalose synthesis in regulating drought response in plants, CkTPS and CkTPP were introduced into Arabidopsis . Compared to wild-type (WT) plants, these transgenic plants showed higher germination rate, survival, less damage, better shoot growth, and longer roots under drought stress. Moreover, transgenic plants had a significantly higher content of proline, chlorophyll, trehalose, and activities of antioxidant enzymes, including superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT), and lower malondialdehyde (MDA) content than WT controls. Double-transgenic plants carrying CkTPS and CkTPP showed better growth and stronger drought tolerance than either single transgenic plant line. These results provide a theoretical and experimental basis for further understanding the function and regulatory mechanism of CkTPS and CkTPP , as well as the possibility of their application for improving drought tolerance in crops through genetic engineering.
缩写:ABA-脱落酸;CAT-过氧化氢酶;GUS-β-葡萄糖醛酸酶;丙二醛;过氧化物酶;ROS活性氧;RWC——相对含水量;超氧化物歧化酶;TPP-海藻糖-6-磷酸磷酸酶;TPS-海藻糖-6-磷酸合成酶;WT-野生型。摘要海藻糖是由海藻糖-6-磷酸合成酶(TPS)和海藻糖-6-磷酸磷酸酶(TPP)两种关键酶合成的,在植物抵抗非生物胁迫和保持生物活性方面发挥着重要作用。因此,TPS和TPP基因的表达直接影响海藻糖的合成和植物的抗逆性。本研究从柠条中鉴定了CkTPS和CkTPP,并研究了海藻糖合成在该沙漠植物适应不利条件中的作用。在根中观察到较高的CkTPS和CkTPP表达,而在叶和茎中的表达要低得多,并且它们的表达在干旱胁迫下上调。组织化学分析表明,由CkTPS和CkTPP启动子驱动的β-葡萄糖醛酸酶表达受到非生物胁迫和植物激素(如脱落酸、赤霉素、茉莉酸甲酯和甘露醇)的强烈诱导,这表明海藻糖的合成可能受到各种信号通路的调节。为了确定海藻糖合成在调节植物干旱反应中的作用的功能机制,将CkTPS和CkTPP引入拟南芥中。与野生型(WT)植物相比,这些转基因植物在干旱胁迫下表现出更高的发芽率、存活率、更少的损伤、更好的芽生长和更长的根。此外,转基因植物的脯氨酸、叶绿素、海藻糖含量和抗氧化酶活性(包括超氧化物歧化酶(SOD)、过氧化物酶(POD)和过氧化氢酶(CAT))显著高于野生型对照,丙二醛(MDA)含量低于野生型对照。携带CkTPS和CkTPP的双转基因植物比任何一个转基因植物系都表现出更好的生长和更强的耐旱性。这些结果为进一步了解CkTPS和CkTPP的功能和调控机制,以及它们通过基因工程提高作物抗旱性的可能性提供了理论和实验依据。
{"title":"Overexpression of genes encoding enzymes involved in trehalose synthesis from Caragana korshinskii enhances drought tolerance of transgenic plants","authors":"X.Y. Huang, Y.-Y. Li, Ting Zhao, W-y Liu, Ying-na Feng, L. Wang, Y.-C. Ma, X.‐F. Lin","doi":"10.32615/bp.2022.023","DOIUrl":"https://doi.org/10.32615/bp.2022.023","url":null,"abstract":"Abbreviations : ABA - abscisic acid; CAT - catalase; GUS - β-glucuronidase; MDA - malondialdehyde; POD - peroxidase; ROS reactive oxygen species; RWC - relative water content; SOD - superoxide dismutase; TPP - trehalose-6-phosphate phosphatase; TPS - trehalose-6-phosphate synthase; WT - wild type. Abstract Trehalose, which plays important roles in resistance to abiotic stresses and preservation of biological activity in plants, is synthesized by two key enzymes, trehalose-6-phosphate synthase (TPS) and trehalose-6-phosphate phosphatase (TPP). Therefore, the expressions of the TPS and TPP genes directly affect trehalose synthesis and stress resistance of plants. In this study, CkTPS and CkTPP from Caragana korshinskii were identified, and the role of trehalose synthesis in the adaptation of this desert plant to adverse conditions was investigated. Higher CkTPS and CkTPP expressions were observed in the roots, whereas expressions were much lower in leaves and stems, and their expressions were upregulated under drought stress. Histochemical analyses showed that β-glucuronidase expression driven by the CkTPS and CkTPP promoters was strongly induced by abiotic stresses and phytohormones, such as abscisic acid, gibberellin, methyl jasmonate, and mannitol, which suggests that trehalose synthesis may be regulated by various signaling pathways. To determine the functional mechanism underlying the role of trehalose synthesis in regulating drought response in plants, CkTPS and CkTPP were introduced into Arabidopsis . Compared to wild-type (WT) plants, these transgenic plants showed higher germination rate, survival, less damage, better shoot growth, and longer roots under drought stress. Moreover, transgenic plants had a significantly higher content of proline, chlorophyll, trehalose, and activities of antioxidant enzymes, including superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT), and lower malondialdehyde (MDA) content than WT controls. Double-transgenic plants carrying CkTPS and CkTPP showed better growth and stronger drought tolerance than either single transgenic plant line. These results provide a theoretical and experimental basis for further understanding the function and regulatory mechanism of CkTPS and CkTPP , as well as the possibility of their application for improving drought tolerance in crops through genetic engineering.","PeriodicalId":8912,"journal":{"name":"Biologia Plantarum","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49552312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Okadaic acid did not change the nitrate reductase activation state in tomato seedlings Okadaic acid不改变番茄幼苗硝酸还原酶的激活状态
IF 1.5 4区 生物学 Q4 PLANT SCIENCES Pub Date : 2022-08-26 DOI: 10.32615/bp.2022.021
A. Kołton, V. Vaštakaitė-Kairienė
In this study, the total and actual nitrate reductase (NR) activity, and NR activation state, in tomato seedlings ( Solanum lycopersicum cvs. Kmicic and Faworyt) treated with okadaic acid (OA) was evaluated. Seedlings were grown in a half-strength Murashige and Skoog (MS) medium in a growth chamber at day/night temperatures of 22/20 °C, a photon flux density of 150 µmol m -2 s -1 , and a 16-h photoperiod. After 10 days, plants were transferred into MS medium with 0 (control), 0.01, 0.05, 0.1, 0.5, 1.0 µM OA. It was found that the total and actual NR activity increased in Kmicic leaves treated with 0.1, 0.5, and 1.0 µM OA compared to control. However, the NR activation state did not change in both roots and leaves of OA-treated tomato seedlings.
在本研究中,评估了用okadaic酸(OA)处理的番茄幼苗(Solanum lycopersicum cvs.Kmicic和Faworyt)的总和实际硝酸还原酶(NR)活性以及NR激活状态。幼苗在生长室中的半强度Murashige和Skoog(MS)培养基中生长,昼夜温度为22/20°C,光子通量密度为150µmol m-2 s-1,光周期为16小时。10天后,将植物转移到含有0(对照)、0.01、0.05、0.1、0.5、1.0µM OA的MS培养基中。研究发现,与对照相比,用0.1、0.5和1.0µM OA处理的Kmic叶片的总NR活性和实际NR活性增加。然而,OA处理的番茄幼苗的根和叶的NR激活状态都没有改变。
{"title":"Okadaic acid did not change the nitrate reductase activation state in tomato seedlings","authors":"A. Kołton, V. Vaštakaitė-Kairienė","doi":"10.32615/bp.2022.021","DOIUrl":"https://doi.org/10.32615/bp.2022.021","url":null,"abstract":"In this study, the total and actual nitrate reductase (NR) activity, and NR activation state, in tomato seedlings ( Solanum lycopersicum cvs. Kmicic and Faworyt) treated with okadaic acid (OA) was evaluated. Seedlings were grown in a half-strength Murashige and Skoog (MS) medium in a growth chamber at day/night temperatures of 22/20 °C, a photon flux density of 150 µmol m -2 s -1 , and a 16-h photoperiod. After 10 days, plants were transferred into MS medium with 0 (control), 0.01, 0.05, 0.1, 0.5, 1.0 µM OA. It was found that the total and actual NR activity increased in Kmicic leaves treated with 0.1, 0.5, and 1.0 µM OA compared to control. However, the NR activation state did not change in both roots and leaves of OA-treated tomato seedlings.","PeriodicalId":8912,"journal":{"name":"Biologia Plantarum","volume":"77 8","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41309896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
LC-MS/MS shotgun proteomics reveals biochemical mechanisms of Paspalum fasciculatum tolerance to Pb-stress LC-MS/MS霰弹枪蛋白质组学揭示雀稗耐铅胁迫的生化机制
IF 1.5 4区 生物学 Q4 PLANT SCIENCES Pub Date : 2022-08-08 DOI: 10.32615/bp.2022.016
M. Salas-Moreno, M. Castillejo, C. López-Hidalgo, J. Marrugo-Negrete, E. Rodríguez-Cavallo, D. Méndez-Cuadro, J. Jorrín-Novo
Paspalum fasciculatum Willd. ex Flüggé grows in mining soils which are Cd- and Pb-contaminated where it exhibits tolerance to Pb and the ability to extract Pb from these soils. To elucidate tolerance mechanisms to Pb-stress, liquid chromatography with tandem mass spectrometry (LC-MS/MS) was used to quantify changes in the accumulation of proteins in leaves. We identified 323 proteins involved in primary metabolism and response to biotic or abiotic stresses. Although proteins involved in the processes of photosynthesis and saccharide and energy metabolism presented the greatest amount of down-regulated proteins, the plant was able to maintain photosynthetic functions and obtain energy to sustain the vital balance. P. fasciculatum based their tolerance on increased antioxidant defenses, improving the protection and repair of proteins and transduction signals to coordinate physiological response to Pb-stress. Our results provide important information to understand the tolerance mechanisms in P. fasciculatum and could be important in future molecular studies on the resistance and accumulation of Pb in plants.
野雀稗。ex flflgg生长在镉和铅污染的矿区土壤中,表现出对铅的耐受性和从这些土壤中提取铅的能力。为了阐明对铅胁迫的耐受机制,采用液相色谱-串联质谱(LC-MS/MS)技术定量分析了叶片中蛋白质积累的变化。我们确定了323种蛋白质参与初级代谢和对生物或非生物应激的反应。虽然参与光合作用和糖、能量代谢过程的蛋白下调量最大,但植物仍能维持光合作用功能,获取能量维持生命平衡。束状藤的耐受性是基于抗氧化防御能力的增强、蛋白质的保护和修复能力的提高以及对铅胁迫生理反应的转导信号的协调。本研究结果为了解束状藤对Pb的抗性机制提供了重要信息,并对今后植物对Pb的抗性和积累的分子研究具有重要意义。
{"title":"LC-MS/MS shotgun proteomics reveals biochemical mechanisms of Paspalum fasciculatum tolerance to Pb-stress","authors":"M. Salas-Moreno, M. Castillejo, C. López-Hidalgo, J. Marrugo-Negrete, E. Rodríguez-Cavallo, D. Méndez-Cuadro, J. Jorrín-Novo","doi":"10.32615/bp.2022.016","DOIUrl":"https://doi.org/10.32615/bp.2022.016","url":null,"abstract":"Paspalum fasciculatum Willd. ex Flüggé grows in mining soils which are Cd- and Pb-contaminated where it exhibits tolerance to Pb and the ability to extract Pb from these soils. To elucidate tolerance mechanisms to Pb-stress, liquid chromatography with tandem mass spectrometry (LC-MS/MS) was used to quantify changes in the accumulation of proteins in leaves. We identified 323 proteins involved in primary metabolism and response to biotic or abiotic stresses. Although proteins involved in the processes of photosynthesis and saccharide and energy metabolism presented the greatest amount of down-regulated proteins, the plant was able to maintain photosynthetic functions and obtain energy to sustain the vital balance. P. fasciculatum based their tolerance on increased antioxidant defenses, improving the protection and repair of proteins and transduction signals to coordinate physiological response to Pb-stress. Our results provide important information to understand the tolerance mechanisms in P. fasciculatum and could be important in future molecular studies on the resistance and accumulation of Pb in plants.","PeriodicalId":8912,"journal":{"name":"Biologia Plantarum","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41543825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
24-epibrassinolide improved chilled tomato photosyntheticperformance by stabilizing electron transport chain and function of photosystem II 表油菜素内酯通过稳定电子传递链和光系统II的功能来改善冷藏番茄的光合性能
IF 1.5 4区 生物学 Q4 PLANT SCIENCES Pub Date : 2022-07-29 DOI: 10.32615/bp.2022.008
Wenlang Hu, X. Hu, C. Liu, B.-Q. Wang, X. Yan
Abbreviations : ABS/CS - absorption flux per CS; ABS/RC - absorption flux (exciting PS II antenna of Chl a molecules) per RC; AQY - apparent quantum yield; BRs - brassinosteroids; CEF - cyclic electron transport around PS I; c i - intercellular CO 2 concentration; CS - cros section; E - transpiration rate; EBR - 24-epibrassinolide; ET o /CS – electron transport flux per CS; ET o /RC - electron transport flux (further than Q A- ) per RC; ETR - electron transport rate; F m - maximal fluorescence yield; F o - minimal fluorescence yield; F v /F m - maximal quantum yield of PS II photochemistry; g s - stomatal conductance; M o - approximated initial slop (in ms -1 ) of the fluorescence transient normalized on the maximal variable fluorescence F v ; NPQ - nonphotochemical quenching coefficient; OEC - oxygen-evolving complex; OJIP curve - Chl a fluorescence transient; PI ABS - performance index for energy conservation from photons absorbed by PS II until the reduction of intersystem electron acceptors; P m - maximum P700 oxidation; P N - net photosynthetic rate; P N,max - maximum net photosynthetic rate; PPFD - photosynthetic photon flux density; PS I - photosystem I; PS II - photosystem II; qP - photochemical quenching coefficient; RC/CS - density of Q A -reducing PS II RCs per CS; RCs - PS II reaction centers; ROS - reactive oxygen species; TR o /CS - trapped energy flux per CS; TR o /RC - trapped energy flux (leading to Q A reduction) per RC; V J - relative variable fluorescence at the J-step; W K - normalized relative variable fluorescence at the K step; Y(I) - effective photochemical quantum yield of PS I; Y(II) - effective PS II quantum yield; Y(NA) - quantum yield of non-photochemical energy dissipation of reaction centers due to PS I acceptor side limitation; Y(ND) - quantum yield of non-photochemical energy dissipation in reaction centers due to PS I donor side limitation; Y(NPQ) - quantum yield of regulated energy dissipation; Y(NO) - quantum yield of nonregulated energy dissipation; φ Eo - quantum yield for electron transport (ET); φ Po - maximum quantum yield for primary photochemistry; Ψ o - probability that a trapped exciton moves an electron into the electron transport chain beyond Q A- . Abstract To explore the protective mechanisms of brassinosteroids in the chill-induced photoinhibition in tomato ( Solanum lycopersicum ), we studied the effect of foliar sprayed 24-epibrassinolide (EBR, 0.1µM) on the gas exchange, chlorophyll fluorescence characteristics, and chlorophyll a fluorescence transient in tomato seedlings under chilling stress (a temperature of 8 ℃ and an irradiance of 200 µmol m -2 s -1 ) for 4 d. Results showed that chilling significantly inhibited CO 2 assimilation and induced photoinhibition of photosystem II (PS II). However, photosystem I (PS I) was relatively tolerant to chilling stress, which was due to the downregulation of PS II activity and increase of cyclic electron transport around PS I (CEF). Chilling led to the
缩写:ABS/CS -每CS的吸收通量;ABS/RC -每个RC的吸收通量(激发Chl a分子的PS II天线);AQY—表观量子产率;BRs—油菜素内酯;围绕psi的循环电子输运;c i -细胞间co2浓度;CS—截面;E——蒸腾速率;EBR - 24-表油菜素内酯;ET o /CS—每CS的电子输运通量;ET 0 /RC -每个RC的电子传递通量(大于Q A-);ETR—电子传递速率;F -最大荧光量;F -最小荧光量;fv / fm - PSⅱ光化学的最大量子产率G -气孔导度;对最大可变荧光F v进行瞬态归一化的初始近似斜率(单位ms -1);NPQ—非光化学猝灭系数;OEC -出氧配合物;OJIP曲线- Chl a荧光瞬态;PI ABS -从PS II吸收光子到系统间电子受体还原的能量守恒性能指标;pm -最大P700氧化;磷氮净光合速率;pn,最大净光合速率;PPFD—光合光子通量密度;PS I—光系统I;PS II—光系统II;qP—光化学猝灭系数;RC/CS -降Q型PSⅱRCs的密度/CS;RCs - PSⅱ反应中心;ROS—活性氧;TR /CS—每CS捕获的能量通量;TR /RC -每个RC捕获的能量通量(导致Q A减少);V J-相对可变荧光在J步;W K - K步归一化相对可变荧光;Y(I)—PS I的有效光化学量子产率;Y(II) -有效PS II量子产率;Y(NA) - PS I受体侧限制下反应中心非光化学能量耗散的量子产率;Y(ND) - PS I给体侧限制下反应中心非光化学能量耗散的量子产率Y(NPQ)—调节能量耗散量子产率;Y(NO) -非调节能量耗散的量子产率;φ Eo -电子输运量子产率(ET);φ Po -初级光化学的最大量子产率Ψ o -被捕获的激子将电子移动到电子传递链中超过Q a -的概率。摘要为探讨油菜素内酯对番茄低温光抑制的保护机制,研究了叶面喷施24-表油菜素内酯(EBR, 0.1µM)对番茄叶片气体交换、叶绿素荧光特性和光合作用的影响。和茄幼苗叶绿素荧光瞬态压力冷却(8℃的温度和辐照度200µ摩尔m 2 s 1) 4 d。结果表明,冷却显著抑制CO 2同化和诱导的光抑制光系统II (PS II)。然而,光系统I (PS I)相对宽容的压力,PSⅱ的差别是由于对这些活动和增加循环电子传递PS我(CEF)。冷却导致PS II反应中心(rc)失活,并阻断PS II受体侧的电子传递,但不影响PS II供体侧的出氧复合物(OEC)。外源EBR主要通过增加CO 2同化和激发能在PS II天线中的热耗散来缓解低温诱导的PS II光抑制,而CEF的保护作用相对较小。本研究表明,EBR维持了冷藏番茄电子传递链的稳定性和PS II的功能。EBR促进了低温胁迫下番茄叶面积吸收(ABS/CS)、捕获(TR /CS)和电子传递(ET /CS),这主要是由于增加了活性反应中心(RC/CS)的密度,而不是活性反应中心的活性。
{"title":"24-epibrassinolide improved chilled tomato photosyntheticperformance by stabilizing electron transport chain and function of photosystem II","authors":"Wenlang Hu, X. Hu, C. Liu, B.-Q. Wang, X. Yan","doi":"10.32615/bp.2022.008","DOIUrl":"https://doi.org/10.32615/bp.2022.008","url":null,"abstract":"Abbreviations : ABS/CS - absorption flux per CS; ABS/RC - absorption flux (exciting PS II antenna of Chl a molecules) per RC; AQY - apparent quantum yield; BRs - brassinosteroids; CEF - cyclic electron transport around PS I; c i - intercellular CO 2 concentration; CS - cros section; E - transpiration rate; EBR - 24-epibrassinolide; ET o /CS – electron transport flux per CS; ET o /RC - electron transport flux (further than Q A- ) per RC; ETR - electron transport rate; F m - maximal fluorescence yield; F o - minimal fluorescence yield; F v /F m - maximal quantum yield of PS II photochemistry; g s - stomatal conductance; M o - approximated initial slop (in ms -1 ) of the fluorescence transient normalized on the maximal variable fluorescence F v ; NPQ - nonphotochemical quenching coefficient; OEC - oxygen-evolving complex; OJIP curve - Chl a fluorescence transient; PI ABS - performance index for energy conservation from photons absorbed by PS II until the reduction of intersystem electron acceptors; P m - maximum P700 oxidation; P N - net photosynthetic rate; P N,max - maximum net photosynthetic rate; PPFD - photosynthetic photon flux density; PS I - photosystem I; PS II - photosystem II; qP - photochemical quenching coefficient; RC/CS - density of Q A -reducing PS II RCs per CS; RCs - PS II reaction centers; ROS - reactive oxygen species; TR o /CS - trapped energy flux per CS; TR o /RC - trapped energy flux (leading to Q A reduction) per RC; V J - relative variable fluorescence at the J-step; W K - normalized relative variable fluorescence at the K step; Y(I) - effective photochemical quantum yield of PS I; Y(II) - effective PS II quantum yield; Y(NA) - quantum yield of non-photochemical energy dissipation of reaction centers due to PS I acceptor side limitation; Y(ND) - quantum yield of non-photochemical energy dissipation in reaction centers due to PS I donor side limitation; Y(NPQ) - quantum yield of regulated energy dissipation; Y(NO) - quantum yield of nonregulated energy dissipation; φ Eo - quantum yield for electron transport (ET); φ Po - maximum quantum yield for primary photochemistry; Ψ o - probability that a trapped exciton moves an electron into the electron transport chain beyond Q A- . Abstract To explore the protective mechanisms of brassinosteroids in the chill-induced photoinhibition in tomato ( Solanum lycopersicum ), we studied the effect of foliar sprayed 24-epibrassinolide (EBR, 0.1µM) on the gas exchange, chlorophyll fluorescence characteristics, and chlorophyll a fluorescence transient in tomato seedlings under chilling stress (a temperature of 8 ℃ and an irradiance of 200 µmol m -2 s -1 ) for 4 d. Results showed that chilling significantly inhibited CO 2 assimilation and induced photoinhibition of photosystem II (PS II). However, photosystem I (PS I) was relatively tolerant to chilling stress, which was due to the downregulation of PS II activity and increase of cyclic electron transport around PS I (CEF). Chilling led to the","PeriodicalId":8912,"journal":{"name":"Biologia Plantarum","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44608274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Biologia Plantarum
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1