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Agronomic traits, secondary metabolites and element concentrations of Lavandula angustifolia leaves as a response to single or reiterated drought stress: How effective is the previously experienced stress? 单次或多次干旱胁迫对薰衣草叶片农艺性状、次生代谢物和元素浓度的影响:先前经历的干旱胁迫有多有效?
IF 2 4区 农林科学 Q2 Agricultural and Biological Sciences Pub Date : 2022-02-27 DOI: 10.2478/fhort-2022-0005
A. Kumlay, Mehmet Zeki Koçak, G. Gohari, M. Nouraein, Ferdi Celikcan, Mustafa Guven Kaysim, M. Kulak
Abstract In nature, plants are constantly challenged by an array of drought episodes, which critically affect the distribution of the plants. The drought episodes might occur recurrently, so the plants endure drought by adjusting and shifting their metabolisms. The impacts of subjecting plants to drought stress have been widely investigated, but reports on how reiterated drought stress affects the plants are limited. The present study was designed to investigate the response of lavender, a reputed medicinal and aromatic plant, against single drought, recovery and reiterated drought stress at greenhouse conditions. In this regard, the experimental design was based on three cycles of 11 days of drought by withholding water, followed by subsequent periods of 6 days of recovery, and then double-stressed and single-stressed periods. As expected, the present findings revealed that single stress decreased the fresh and dry weights of the leaf, stem and root. Reiterated drought stress caused critical reductions in the fresh weight of the leaf, stem and root, while the dry weight of stem and root were not significantly affected. Of the estimated traits, only the dry weight of leaf increased with reiterated drought stress. The mineral status of the leaves was adversely affected with single stress, but the effects of recovery and reiterated stress were not in accordance with the improvement in water contents of the leaf and soil. Regarding essential oil compounds, eucalyptol, camphor and endo-borneol were predominant. Single and reiterated drought stress increased camphor percentage, while recovery and full irrigation decreased the percentage. Endo-borneol was decreased under single stress, but reiterated stress increased the percentage of the compound. Considering the phenolic acids, stressed and non-stressed groups were well discriminated and hence, phenolic acids might be useful as good indicators of the stress response in lavender.
摘要在自然界中,植物不断受到一系列干旱事件的挑战,这些干旱事件严重影响了植物的分布。干旱事件可能会反复发生,因此植物通过调整和改变新陈代谢来忍受干旱。对植物遭受干旱胁迫的影响进行了广泛的研究,但关于反复干旱胁迫如何影响植物的报道有限。本研究旨在研究薰衣草,一种著名的药用和芳香植物,在温室条件下对单一干旱、恢复和反复干旱胁迫的反应。在这方面,实验设计基于三个周期,即11天的干旱,蓄水,然后是6天的恢复期,然后是双重胁迫期和单一胁迫期。正如预期的那样,目前的研究结果表明,单一胁迫降低了叶片、茎和根的鲜重和干重。反复干旱胁迫导致叶片、茎和根的鲜重显著减少,而茎和根干重没有受到显著影响。在估计的性状中,只有叶片的干重随着重复干旱胁迫而增加。单一胁迫对叶片的矿质状态有不利影响,但恢复和重复胁迫的效果与叶片和土壤含水量的改善不一致。精油类化合物以桉树醇、樟脑和龙脑为主。单一和重复干旱胁迫增加了樟脑的百分比,而恢复和充分灌溉降低了百分比。单次胁迫下内源性冰片含量降低,但重复胁迫使复合物的含量增加。考虑到酚酸,应激组和非应激组得到了很好的区分,因此,酚酸可能是薰衣草应激反应的良好指标。
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引用次数: 0
Outcomes of foliar iodine application on growth, minerals and antioxidants in tomato plants under salt stress 盐胁迫下叶面施碘对番茄生长、矿物质和抗氧化剂的影响
IF 2 4区 农林科学 Q2 Agricultural and Biological Sciences Pub Date : 2022-02-27 DOI: 10.2478/fhort-2022-0003
José E. García Fuentes, Biaani F. Herrera Castellanos, E. N. R. Martínez, W. A. N. Ortiz, A. Mendoza, Julia Medrano Macías
Abstract Plant biostimulants have been used to reduce the damage caused by different types of biotic and abiotic stresses. Iodine (I) is a non-essential element in plants. Still, it is considered beneficial and a biostimulant, since exogenous application can enhance the redox metabolism, which improves antioxidants, synergies with essential minerals and increases tolerance to adverse factors. However, little is known about the mechanism of action of iodine; so, it is advantageous to undertake research that elucidates the impact of this element on plant physiology, which is expected to encourage the productive agricultural sector to use this element with additional biofortification benefit. The objective of this research was to evaluate the effect of foliar KIO3 applications every 15 days at 100 μM, on growth, mineral content and antioxidants in tomato plants grown under greenhouse conditions subjected to salinity stress (100 mM NaCl). The results showed that iodine did not mitigate the adverse impact of salinity on fresh or dry biomass but increased fruit production by 23%. A greater amount of N and Fe was also found in the leaves but not in the fruits; the same happened with the iodine concentration, which was high in the leaves of the treated plants but not in tomato fruits. The content of Ca and Mg in fruits was decreased in plants treated with iodine, as well as the activity of the GPX, lycopene and the antioxidant potential. None of the fruit quality variables were affected by salinity with or without application of iodine.
摘要植物生物刺激剂已被用于减少不同类型的生物和非生物胁迫造成的损害。碘(I)是植物中的非必需元素。尽管如此,它被认为是有益的,也是一种生物刺激剂,因为外源性应用可以增强氧化还原代谢,从而提高抗氧化剂、与必需矿物质的协同作用,并提高对不利因素的耐受性。然而,人们对碘的作用机制知之甚少;因此,进行研究阐明这种元素对植物生理学的影响是有利的,这有望鼓励生产性农业部门使用这种元素,并带来额外的生物强化效益。本研究的目的是评估每15天在100μM下叶面施用KIO3对在盐度胁迫(100mM NaCl)的温室条件下生长的番茄植株的生长、矿物质含量和抗氧化剂的影响。结果表明,碘并没有减轻盐度对新鲜或干燥生物量的不利影响,但能使果实产量增加23%。在叶片中也发现了大量的N和Fe,但在果实中没有发现;同样的情况也发生在碘浓度上,处理植物的叶片中碘浓度很高,但番茄果实中碘浓度不高。碘处理降低了果实中钙和镁的含量,降低了GPX、番茄红素的活性和抗氧化能力。无论是否施用碘,果实质量变量都不受盐度的影响。
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引用次数: 7
Zinc sulphate or zinc nanoparticle applications to leaves of green beans 硫酸锌或纳米锌在四季豆叶片上的应用
IF 2 4区 农林科学 Q2 Agricultural and Biological Sciences Pub Date : 2021-12-01 DOI: 10.2478/fhort-2021-0028
Jaime Bautista-Diaz, Oscar Cruz-Álvarez, O. A. Hernández-Rodríguez, E. Sánchez-Chávez, J. L. Jacobo-Cuellar, P. Preciado-Rangel, G. Ávila-Quezada, D. Ojeda-Barrios
Abstract The green bean (Phaseolus vulgaris L.) is a very widely grown food crop that contributes significantly to human dietary needs in many countries due to its high content of protein. This study evaluates foliar applications of ZnSO4 versus that of zinc oxide nanoparticles (ZnO NPs) to leaves of the green bean cv. ‘Strike’ and records the plant responses in terms of Zn uptake and concentrations of photosynthetic pigments and bioactive compounds. The experiment was conducted under greenhouse conditions in Chihuahua, Mexico, with a completely randomised experimental design with 10 replicates. The two treatments were foliar applications of either an aqueous solution of ZnSO4 or an aqueous suspension of ZnO NPs (both 150 mg · L−1). The application of ZnO NPs significantly increased concentrations of Zn2+ in the leaflets, roots, stems and pods of chlorophylls a and b (values 15.40 μg · g−1 and 11.64 μg · g−1, respectively). Sucrose concentration was also increased by Zn2+ applications, but no differences were found in total phenols (TP), total flavonoids (TFl) or antioxidant capacity (AC). In the pods and seeds, Zn2+ application left sucrose and TFl concentrations unchanged, but the TP increase was significant. The AC was affected by both zinc sources and only in the pods. The applications of ZnSO4 or ZnO NPs significantly increased the biomass accumulation (79.10 g · p−1 and 84.70 g · p−1 DW) and yield (55.64 g · p−1 and 53.80 g · p−1 FW). These results suggest that the application of ZnO NPs could represent a worthwhile biofortification strategy in the commercial production of green bean cv. ‘Strike’.
摘要绿豆(Phaseolus vulgaris L.)是一种种植广泛的粮食作物,由于其蛋白质含量高,在许多国家对人类饮食需求做出了重大贡献。本研究评估了ZnSO4与氧化锌纳米颗粒(ZnO NPs)在绿豆“Strike”叶片上的叶面应用,并记录了植物对锌的吸收以及光合色素和生物活性化合物的浓度。该实验在墨西哥奇瓦瓦的温室条件下进行,采用完全随机的实验设计,共有10个重复。这两种处理是ZnSO4水溶液或ZnO NP水悬浮液(均为150 mg·L−1)的叶面施用。ZnO NPs的施用显著增加了叶绿素a和叶绿素b的小叶、根、茎和荚中的Zn2+浓度(分别为15.40μg·g−1和11.64μg·g-1)。Zn2+的应用也增加了蔗糖的浓度,但总酚(TP)、总黄酮(TFl)或抗氧化能力(AC)没有差异。在荚和种子中,施用Zn2+使蔗糖和TFl浓度保持不变,但TP显著增加。AC受到两种锌源的影响,并且仅在豆荚中受到影响。ZnSO4或ZnO NPs的施用显著增加了生物量积累(79.10 g·p−1和84.70 g·p–1 DW)和产量(55.64 g·p‐1和53.80 g·p‑1 FW)。这些结果表明,ZnO纳米颗粒的应用可以代表一种有价值的生物强化策略,用于绿豆品种“Strike”的商业生产。
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引用次数: 13
Evaluation of postharvest storability of Ponkan mandarins stored at different temperatures 不同温度贮藏的蓬坎柑橘采后贮藏性评价
IF 2 4区 农林科学 Q2 Agricultural and Biological Sciences Pub Date : 2021-12-01 DOI: 10.2478/fhort-2021-0027
Nantong Cai, C. Wan, Jinyin Chen, Chuying Chen
Abstract The effects of storage temperature on postharvest storability, quality attributes and antioxidant enzyme activities of harvested Ponkan mandarins were investigated. Fresh fruits were randomly divided into four groups and stored at different temperatures [5 ± 1 °C (S5), 10 ± 1 °C (S10), 15 ± 1 °C (S15), and 20 ± 1 °C (S20 or control)] for 120 days. The results indicated that, compared with the control fruit, low-temperature storage at 10 °C significantly delayed the increase in fruit decay rate, weight loss, citrus colour index, respiration intensity, relative electrical conductivity, the accumulation of hydrogen peroxide and malondialdehyde, retarded the decline in L* value, retained high contents of total soluble solid, titratable acid, vitamin C, total phenol and total flavonoid, as well as higher activities of antioxidant enzymes – superoxide dismutase, catalase, peroxidase and ascorbic peroxidase. The principal component analysis results showed that low-temperature storage significantly maintained the postharvest quality of Ponkan mandarins, with fruit stored at 10 °C having no significant difference from the fruit stored at 5 °C, but markedly higher than those fruit stored at 15 °C. The comprehensive result of single-factor analysis and PCA showed that 10 °C could be used as the optimum storage temperature for improving the postharvest storability of Ponkan mandarins.
摘要研究了贮藏温度对采后贮藏性、品质性状和抗氧化酶活性的影响。新鲜水果被随机分为四组,并在不同温度[5±1°C(S5),10±1°C.(S10),15±1°C.S15和20±1°CS20或对照)]下储存120天。结果表明,与对照果实相比,10°C低温贮藏显著延缓了果实腐烂率、失重、柑桔色指数、呼吸强度、相对电导率、过氧化氢和丙二醛积累的增加,延缓了L*值的下降,保留了高含量的可溶性固形物、可滴定酸,维生素C、总酚和总黄酮,以及较高的抗氧化酶活性——超氧化物歧化酶、过氧化氢酶、过氧化物酶和抗坏血酸过氧化物酶。主成分分析结果表明,低温贮藏显著保持了蒲柑采后品质,10°C贮藏的果实与5°C贮藏没有显著差异,但明显高于15°C贮藏。单因素分析和主成分分析的综合结果表明,10°C可作为提高麻橘采后贮藏性的最佳贮藏温度。
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引用次数: 1
Reduction of chilling injury of ‘Washington’ navel orange fruits by melatonin treatments during cold storage 褪黑素处理减少“华盛顿”脐橙果实冷藏过程中的冷害
IF 2 4区 农林科学 Q2 Agricultural and Biological Sciences Pub Date : 2021-12-01 DOI: 10.2478/fhort-2021-0026
M. Aboryia, A. A. Lo’ay, A. Omar
Abstract Cold storage is used to improve the efficiency of storage and handling of orange fruits, but the fruits are exposed to chilling injury (CI). Antioxidant enzymes are part of the antioxidant defence system against CI of ‘Washington’ oranges during cold storage, which controls storage/handling efficiency. In this study, melatonin (ME) was used on fruits to reduce cold damage. To assess the action of ME influences; fruits were picked from the tree at the commercial maturity stage and divided into two groups that were uniform in size and colour. Then, they were immersed in ME solution at 0 mmol, 10 mmol, 100 mmol or 1,000 mmol for 20 min at 20 ± 1 °C. The treated fruits were stored at 4 ± 1 °C and 95 ± 1% RH for 4 weeks during 2019 and 2020 seasons. The physical and chemical characteristics of the stored fruits were measured every week up to the end of the storage period. Results indicated that immersing fruits in 1,000 μM ME minimised the CI-index and the water loss%, while preserving the orange peel colour (h°) during cold storage. On the other hand, the same treatment caused slight changes in soluble solid content (SSC%), maintained ascorbic acid (AA) content and the stability of total acidity (TA%), enhanced the antioxidant enzymes activities (AEAs) such as ascorbate peroxidase (APX), catalase (CAT), and superoxidase dismutase (SOD) and also reduced the rate of malondialdehyde (MDA) and ion leakage (IL) during cold storage. Moreover, it minimised hydrogen peroxide (H2O2) and superoxide anion (O2•−) production and caused pronounced results to be exhibited in antioxidant capacity. Overall, the 1,000 μM ME treatment for orange fruits afforded more tolerance against cold storage stress.
摘要冷藏是提高柑橘果实贮藏和处理效率的一种手段,但柑橘果实易受到冷害。抗氧化酶是“华盛顿”橙子在冷藏期间抗CI的抗氧化防御系统的一部分,它控制着储存/处理效率。在这项研究中,褪黑素(ME)被用于水果以减少冷损伤。评估ME影响的行动;果实在商业成熟期从树上摘下来,分成大小和颜色一致的两组。然后在20±1℃条件下,分别在0 mmol、10 mmol、100 mmol或1000 mmol的ME溶液中浸泡20 min。处理后的果实分别于2019和2020两季在4±1℃、95±1% RH条件下保存4周。贮存期结束前,每周对贮藏果实的物理和化学特性进行测定。结果表明,在1000 μM ME中浸泡可使果皮的ci指数和水分损失率降到最低,并能在冷藏过程中保持果皮颜色(h°)。另一方面,同样的处理使可溶性固形物含量(SSC%)略有变化,维持了抗坏血酸(AA)含量和总酸度(TA%)的稳定性,提高了抗坏血酸过氧化物酶(APX)、过氧化氢酶(CAT)和超氧化酶歧化酶(SOD)等抗氧化酶活性(AEAs),降低了冷藏过程中丙二醛(MDA)和离子泄漏(IL)的速率。此外,它最大限度地减少了过氧化氢(H2O2)和超氧阴离子(O2•−)的产生,并在抗氧化能力方面表现出明显的效果。总体而言,1000 μM ME处理对柑橘果实的耐受性更强。
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引用次数: 2
Salicylic acid effect on the mechanism of Lelliottia amnigena causing potato soft rot 水杨酸对遗忘湿地藻引起马铃薯软腐病机理的影响
IF 2 4区 农林科学 Q2 Agricultural and Biological Sciences Pub Date : 2021-12-01 DOI: 10.2478/fhort-2021-0029
R. Osei, Chengde Yang, Lingxiao Cui, Lijuan Wei, M. Jin, Solomon Boamah
Abstract Salicylic acid (SA) plays an important role in protecting plants from biotic stresses. Lelliottia amnigena is a newly identified potato soft rot pathogen and there are no adequate studies on this soft rot pathogen. Therefore, this paper focussed on the effect of SA on the mechanism under which L. amnigena causes potato soft rot. L. amnigena was examined and detected to secrete pectinase, proteases, pectin lyase and cellulase, which are the most important pathogenic enzymes involved in the production of plant diseases. Sterilised healthy potato tubers were inoculated with 0.2 mL of L. amnigena suspension (3.69 CFU · mL−1 × 107 CFU · mL−1). After 24 h, 200 μL of four different SA concentrations (0.5 mM, 1.0 mM, 1.5 mM and 2.0 mM) were used to treat the tubers. Co-culture of L. amnigena and SA significantly reduced the activity of pectinase, protease, pectin lyase and cellulase by an average of 33.8%, 43.4%, 67.7% and 46.9%, across the four concentrations (0.5 mM, 1.0 mM, 1.5 mM and 2.0 mM), respectively, compared to the control. The average disease index was reduced by 54.7% across the four SA concentrations. Treatment with SA induced transcriptional levels of the superoxide dismutase, peroxide, catalase and glutathione S-transferase across the four levels by an average of 3.87, 3.25, 3.97 and 3.94-fold, respectively, compared to control. Based on our results, we could state that SA could reduce the activities of these extracellular enzymes produced by L. amnigena by modulating both enzymatic and non-enzymatic antioxidant activities and gene expression that induce natural resistance in plants against bacterial infections.
摘要水杨酸(SA)在保护植物免受生物胁迫方面发挥着重要作用。遗忘型Lelliottia amnigena是一种新发现的马铃薯软腐病病原,目前尚未对其进行充分的研究。因此,本文重点研究SA对遗忘乳杆菌引起马铃薯软腐机理的影响。检测并检测了遗忘乳杆菌分泌果胶酶、蛋白酶、果胶裂解酶和纤维素酶,这是参与植物病害产生的最重要的致病酶。用0.2 mL amnigena乳杆菌悬浮液(3.69 CFU·mL−1×107 CFU·mL−1)接种灭菌的健康马铃薯块茎。24小时后,使用200μL的四种不同SA浓度(0.5 mM、1.0 mM、1.5 mM和2.0 mM)处理块茎。与对照相比,在四种浓度(0.5mM、1.0mM、1.5mM和2.0mM)下,遗忘乳杆菌和SA的共培养显著降低了果胶酶、蛋白酶、果胶裂解酶和纤维素酶的活性,平均分别降低了33.8%、43.4%、67.7%和46.9%。在四种SA浓度下,平均疾病指数降低了54.7%。与对照相比,SA处理诱导超氧化物歧化酶、过氧化物、过氧化氢酶和谷胱甘肽S-转移酶在四个水平上的转录水平分别平均提高3.87、3.25、3.97和3.94倍。根据我们的研究结果,我们可以说SA可以通过调节酶和非酶抗氧化活性以及诱导植物对细菌感染的自然抗性的基因表达来降低遗忘乳杆菌产生的这些胞外酶的活性。
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引用次数: 4
Hoverflies (Syrphidae: Diptera) in areas contaminated with heavy metals (Cd, Zn, Pb) 受重金属(Cd、Zn、Pb)污染地区的悬停蝇(夜蛾科:直翅目)
IF 2 4区 农林科学 Q2 Agricultural and Biological Sciences Pub Date : 2021-11-25 DOI: 10.2478/fhort-2021-0025
A. Mielczarek, Ł. Mielczarek, E. Wojciechowicz-Żytko
Abstract The aim of the research was to study the diversity of hoverflies (Syrphidae: Diptera) living in areas under the influence of heavy metal emissions (Cd, Zn and Pb). Although the area of the Olkusz Ore-bearing Region (OOR), where the research was partially conducted, belongs to the contaminated regions, where a relatively high species richness of Syrphids has been noted. During the research period, a total of 1,180 syrphids, belonging to 165 species were caught, which constitutes 39.76% of all the Polish Syrphidae fauna. These species represented all the trophic groups with the dominance of zoophagous species (48.48%); however, the most numerous (quantitatively abundant) were saprophagous. Among the collected syrphids, common and numerous species, such as: E. arbustorum (LINNAEUS, 1758), E. tenax (LINNAEUS, 1758), Episyrphus balteatus (DE GEER, 1776) and S. pipiens (LINNAEUS, 1758), as well as rare species such as Callicera aenea (FABRICIUS, 1777) (NT), Chalcosyrphus piger (FABRICIUS, 1794) (DD), Epistrophe ochrostoma (ZETTERSTEDT, 1849) (VU), Orthonevra geniculata (MEIGEN, 1830) (DD), Rhingia rostrata (LINNAEUS, 1758) (DD), Sphegina sibirica STACKELBERG, 1953 (LC) and Spilomyia diophthalma (LINNAEUS, 1758) (NT), were noted. Eleven of the collected species have been included in the Polish Red List of Endangered Species. Melangyna ericarum (COLLIN, 1946) is recorded as a new one among the Polish fauna. Numerous observations did not indicate that the area covered by the study was characterised by a significantly lower species diversity compared to other sites. In fact, the samples taken were usually characterised by a relatively high biodiversity. The obtained results may suggest that anthropogenic activities, including those leading to environmental pollution with heavy metals and to a strong transformation of natural habitats, do not completely destroy biodiversity, and in some cases leave space for nature to create habitats where even rare species of organisms such as Syrphidae can develop.
摘要本研究的目的是研究生活在重金属排放(Cd、Zn和Pb)影响下的地区的气垫蝇(夜蛾科:直翅目)的多样性。尽管部分进行研究的Olkusz含矿区(OOR)属于受污染地区,但已注意到该地区的Syrphids物种丰富度相对较高。在研究期间,共捕获了1180只共有165种的Syrpids,占波兰Syrphidae动物群的39.76%。这些物种代表了以浮游动物为主的所有营养类群(48.48%);然而,数量最多(数量丰富)的是食腐动物。在收集到的同形目中,常见的和众多的物种,如:熊果木(LINNAEUS,1758)、金龟子(LINNAUEUS,1758,注意到膝原痣(MEIGEN,1830)(DD)、玫瑰鼻(LINNAEUS,1758)(DD。收集到的11种物种已被列入波兰濒危物种红色名录。在波兰动物群中,黑腹女蛛(Melangyna ericarum,COLLIN,1946)是一种新的动物。大量观察结果并没有表明,与其他地点相比,该研究覆盖的区域的物种多样性明显较低。事实上,采集的样本通常具有相对较高的生物多样性。所获得的结果可能表明,人类活动,包括那些导致重金属污染环境和自然栖息地发生强烈变化的活动,并没有完全破坏生物多样性,在某些情况下,为大自然创造栖息地留下空间,即使是像水貂科这样的稀有生物也可以在那里发展。
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引用次数: 1
Bibliometric analysis of strawberry (Fragaria × ananassa Duch.) research from Plant Sciences category based on Web of Science 基于Web of Science的植物科学类草莓研究文献计量学分析
IF 2 4区 农林科学 Q2 Agricultural and Biological Sciences Pub Date : 2021-10-13 DOI: 10.2478/fhort-2021-0024
Bao-Zhong Yuan, Jie Sun
Abstract Strawberry (Fragaria × ananassa Duch.) is one of the most significant horticultural cash crops in the world. The study aimed to identify and analyse the 2,930 articles and review type papers of strawberry research from the Plant Sciences category based on the Web of Science. Papers mainly written in English (2,894, 98.771%), were from a total of 8,838 authors, 96 countries/territories, 1,845 organisations and published in 197 journals and book series. The top seven core journals are ranked as Plant Disease (252, 8.601%), Phytopathology (229, 7.816%), Plant Pathology (93, 3.174%), Frontiers in Plant Science (89, 3.308%), Canadian Journal of Plant Science (86, 2.935%), European Journal of Plant Pathology (86, 2.935%) and Journal of Experimental Botany (86, 2.935%), and these journals each published >86 papers. The top five countries and regions were the USA, People's Republic of China, Spain, Canada and England. The top five organisations were the University of Florida, USDA ARS, University of Malaga, University of California Davis, Agriculture and Agri-Food Canada. The top five authors are Peres, Natalia A. (Peres, Natalia; Peres, N.A.); Madden, LV; Munoz-Blanco, Juan (Munoz-Blanco, J); Schwab, Wilfried (Schwab, W) and Ellis, MA, each published >25 papers. All keywords of the strawberry research from the Plant Sciences category were separated into 11 clusters for different research topics. Visualisations offer exploratory information on the current state in a scientific field or discipline as well as indicate possible developments in the future. The review could provide a valuable guide for designing future studies.
摘要草莓是世界上最重要的园艺经济作物之一。该研究旨在识别和分析基于Web of Science的植物科学类别中的2930篇草莓研究文章和综述型论文。论文主要用英语撰写(2894篇,98.771%),来自96个国家/地区、1845个组织的8838位作者,发表在197种期刊和丛书上。排名前七的核心期刊分别为《植物病学》(2528.601%)、《植物病理学》(2297.816%)、《作物病理学》、《植物科学前沿》(893.308%)、“加拿大植物科学杂志”(862.935%)、“欧洲植物病理学杂志”(86.2.935%)和《实验植物学杂志》(862.935%),这些期刊各发表论文>86篇。排名前五的国家和地区是美国、中华人民共和国、西班牙、加拿大和英国。排名前五的组织是佛罗里达大学、美国农业部ARS、马拉加大学、加州大学戴维斯分校、加拿大农业和农业食品部。排名前五的作者是Peres,Natalia A.(Peres,纳塔利娅;Peres,N.A.);Madden,LV;穆尼奥斯·布兰科,胡安(穆尼奥斯·布朗科,J);Schwab,Wilfried(Schwab,W)和Ellis,MA各自发表了超过25篇论文。植物科学类草莓研究的所有关键词都被分为11个不同研究主题的聚类。可视化提供了关于科学领域或学科现状的探索性信息,并指示了未来可能的发展。该综述可以为设计未来的研究提供有价值的指导。
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引用次数: 5
Biochemical composition and shape-dimensional traits of rosehip genotypes 玫瑰果基因型的生化组成和形状维度特征
IF 2 4区 农林科学 Q2 Agricultural and Biological Sciences Pub Date : 2021-09-27 DOI: 10.2478/fhort-2021-0022
B. Demir, B. Sayıncı, M. Yaman, A. Sümbül, E. Yıldız, O. Karakaya, Günseli Bobuş Alkaya, S. Ercişli
Abstract In the present study, the biochemical composition and shape and dimensional traits of 25 rosehip (Rosa canina) genotypes were investigated. The shape and dimensional traits were determined by image processing technique. Seed-propagated rosehip genotypes belonging to R. canina were collected from the natural flora of Mesudiye (Ordu) and Talas (Kayseri) districts. Antioxidant activity (39.510–72.673 mmol · kg−1), total flavonoids (287.80–1,686.20 mg quercetin equivalent (QE) · kg−1) and total phenolics (38,519.40–79,080.60 mg gallic acid equivalent · kg−1) of the genotypes exhibited large variations. Width (12.2 mm) and thickness (12.5 mm) of fruits averages were found to be close to each other. The genotypes exhibited fruit lengths between 12.0 mm and 29.5 mm. Average projected area at horizontal orientation (179.7 mm2) was greater than the projected area at vertical orientation (120.4 mm2). Sphericity average was calculated as 71.4%. According to principal component (PC) analysis, the most important dimensional traits discriminating genotypes from each other were identified as surface area, geometric mean diameter and volume. In terms of shape attributes, distinctive differences were observed in sphericity, circularity, elongation and surface closure rates (SCR) of the genotypes. According to elliptic Fourier analysis (EFA), genotypes look like a sphere. In terms of shape, there were long, spherical, flat bottomed, pointed bottomed and asymmetric-looking genotypes indicating how environment and genotype affect the fruit shape. The greatest shape variation was transverse contraction and expansion. According to the clustering analysis for shape attributes, rosehip genotypes were classified into six groups. Dendrogram, scatter plots of linear discriminant analysis and paired comparison test results put forth the shape differences of the genotype successfully.
摘要本研究对25个玫瑰果(Rosa canina)基因型的生化组成、形状和尺寸特征进行了研究。通过图像处理技术确定其形状和尺寸特征。从Mesudiye(Ordu)和Talas(Kayseri)地区的自然植物区系中收集了属于犬R.canina的种子繁殖玫瑰果基因型。抗氧化活性(39.510–72.673 mmol·kg−1)、总黄酮(287.80–1686.20 mg槲皮素当量(QE)·kg−2)和总酚(38519.40–79080.60 mg没食子酸当量·kg−3)的基因型差异较大。发现果实平均宽度(12.2毫米)和厚度(12.5毫米)彼此接近。基因型的果实长度在12.0mm到29.5mm之间。水平方向的平均投影面积(179.7mm2)大于垂直方向的投影面积(120.4mm2)。球度平均值为71.4%。根据主成分分析,区分基因型的最重要尺寸性状是表面积、几何平均直径和体积。在形状属性方面,基因型的球形度、圆形度、伸长率和表面闭合率(SCR)存在显著差异。根据椭圆傅立叶分析(EFA),基因型看起来像一个球体。就形状而言,有长的、球形的、平底的、尖底的和不对称的基因型,表明环境和基因型如何影响果实形状。最大的形状变化是横向收缩和扩张。根据形状属性的聚类分析,将玫瑰果基因型分为六组。树状图、线性判别分析散点图和配对比较试验结果成功地揭示了基因型的形状差异。
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引用次数: 5
Improvement of the quality in hydroponically grown fresh aromatic herbs by inducing mild salinity stress is species-specific 通过诱导温和的盐度胁迫来提高水培新鲜芳香草本植物的质量是物种特异性的
IF 2 4区 农林科学 Q2 Agricultural and Biological Sciences Pub Date : 2021-09-18 DOI: 10.2478/fhort-2021-0020
Danai-Christina Aktsoglou, Dimitrios S. Kasampalis, E. Sarrou, P. Tsouvaltzis, P. Chatzopoulou, S. Martens, A. Siomos
Abstract Profitable hydroponic production requires high quality fresh water, which is often not available for agricultural use, while desalinisation of salty water is an expensive and unsustainable technology. In the present study, we assessed the effect of mild salinity stress during the soilless cultivation of fresh peppermint and spearmint in the floating system on biomass yield, produce quality and plant secondary metabolite content. Peppermint and spearmint plants were grown for 25 days on a nutrient solution (NS) supplemented with three different NaCl concentrations (0 mM, 10 mM or 20 mM NaCl). The plant height, root length, fresh and dry weight were recorded and composition was determined on fresh tissue. The composition of essential oil was determined upon hydrodistillation and that of polyphenolic compounds by targeted ultra-performance liquid chromatography coupled with mass spectrometer (UPLC-MS/MS). Plant growth was not suspended by the addition of NaCl in the NS, except for the plant height at the highest salinity level. In peppermint, the nutritional composition was not affected by the salinity, whereas it was significantly improved in spearmint as confirmed by the nitrate content decrease and the total antioxidant capacity, total soluble phenol, total carotenoid and essential oil content increases. Simultaneously, no effect of the salinity on essential oil or polyphenolic composition in both plants was induced. In conclusion, peppermint and spearmint production is feasible in the floating system even under mild salinity conditions, without negatively affecting either the crop yield or the plant's essential oil or phenolic composition. Indeed, low salinity levels improved the nutritional composition of spearmint plants.
摘要有利可图的水培生产需要高质量的淡水,而淡水通常无法用于农业,而盐水脱盐是一项昂贵且不可持续的技术。在本研究中,我们评估了漂浮系统中新鲜薄荷和留兰香无土栽培过程中轻度盐度胁迫对生物量产量、产品质量和植物次生代谢产物含量的影响。薄荷和留兰香植物在补充有三种不同NaCl浓度(0mM、10mM或20mM NaCl)的营养溶液(NS)上生长25天。记录植株高度、根长、鲜重和干重,并测定新鲜组织的成分。采用定向超高效液相色谱-质谱联用技术(UPLC-MS/MS)测定了精油和多酚类化合物的加氢蒸馏组成。除了在最高盐度水平下的株高外,在NS中添加NaCl不会暂停植物生长。薄荷的营养成分不受盐度的影响,而留兰香的营养成分显著改善,硝酸盐含量降低,总抗氧化能力、总可溶性酚、总类胡萝卜素和精油含量增加。同时,盐度对两种植物的精油或多酚组成没有影响。总之,即使在温和的盐度条件下,在漂浮系统中生产薄荷和留兰香也是可行的,不会对作物产量或植物的精油或酚类成分产生负面影响。事实上,低盐度水平改善了留兰香植物的营养成分。
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引用次数: 3
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Folia Horticulturae
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