S. Wang, C. Xing, C. Zhang, T. Guo, H. Hao, Z. Zhang, S. Wang, J. Shu
{"title":"Photosynthetic performance of walnut leaves during the occurrence of leaf scorch","authors":"S. Wang, C. Xing, C. Zhang, T. Guo, H. Hao, Z. Zhang, S. Wang, J. Shu","doi":"10.32615/ps.2023.003","DOIUrl":"https://doi.org/10.32615/ps.2023.003","url":null,"abstract":"","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"3 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83791324","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}
G. Yokoyama, S. Ono, D. Yasutake, K. Hidaka, T. Hirota
{"title":"Diurnal changes in the stomatal, mesophyll, and biochemical limitations of photosynthesis in well-watered greenhouse-grown strawberries","authors":"G. Yokoyama, S. Ono, D. Yasutake, K. Hidaka, T. Hirota","doi":"10.32615/ps.2023.001","DOIUrl":"https://doi.org/10.32615/ps.2023.001","url":null,"abstract":"","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"1 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91253990","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}
S. Baroniya, K. Jumrani, M. Baroniya, K. Guruprasad, M. Landi, S. Kataria
Abbreviations : ABS – absorbance
缩写:ABS吸光度
{"title":"Intraspecific variation in photosynthetic efficiency in soybean (Glycine max L.) varieties towards solar ultraviolet radiations","authors":"S. Baroniya, K. Jumrani, M. Baroniya, K. Guruprasad, M. Landi, S. Kataria","doi":"10.32615/ps.2022.048","DOIUrl":"https://doi.org/10.32615/ps.2022.048","url":null,"abstract":"Abbreviations : ABS – absorbance","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"50 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77438951","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}
Will Ke, Y. Pan, L. Chen, J. Huang, J. Zhang, X. Long, M. Cai, C. Peng
Abstract
摘要
{"title":"Adaptive photosynthetic strategies of the invasive plant Sphagneticola trilobata and its hybrid to a low-light environment","authors":"Will Ke, Y. Pan, L. Chen, J. Huang, J. Zhang, X. Long, M. Cai, C. Peng","doi":"10.32615/ps.2022.051","DOIUrl":"https://doi.org/10.32615/ps.2022.051","url":null,"abstract":"Abstract","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"243 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91216525","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}
Y. Lai, Kiryo Lin, C. Liu, Tuwei Liao, M. Huang, C.-W. Wang, C-I Chen
Abstract
摘要
{"title":"Photosynthetic responses of Eulophia dentata, Bletilla formosana, and Saccharum spontaneum under various photosynthetic photon flux density conditions","authors":"Y. Lai, Kiryo Lin, C. Liu, Tuwei Liao, M. Huang, C.-W. Wang, C-I Chen","doi":"10.32615/ps.2022.050","DOIUrl":"https://doi.org/10.32615/ps.2022.050","url":null,"abstract":"Abstract","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"40 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85083842","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}
A. Ivanov, A. Kosobryukhov, V. Kreslavski, S. Allakhverdiev
The changes in photosynthetic activity, as well as the activity of nitrogen-metabolism enzymes, the intensity of lipid peroxidation, and proline content were studied in Triticum aestivum L. plants after their incubation at a low CO 2 concentration in a sealed chamber for 10 d. CO 2 deficiency (–CO 2 ) compared to normal CO 2 concentration (control) led to a decrease in the rate of O 2 gas exchange at the plateau of the light curve and quantum yield of photosynthesis. The maximum and effective quantum photochemical yields also decreased. CO 2 deficiency reduced the activity of nitrate reductase, but increased the activities of nitrite reductase, glutamine synthetase, and glutamate dehydrogenase, and promoted proline accumulation. It is assumed that with a lack of CO 2 , an excess of nitrogen-containing compounds occurs, which must be removed from metabolic processes. Also, we suggest the partial storage of nitrogen in the form of nitrogen-containing compounds such as proline.
{"title":"Changes in the photosynthetic performance, the activity of enzymes of nitrogen metabolism, and proline content in the leaves of wheat plants after exposure to low CO2 concentration","authors":"A. Ivanov, A. Kosobryukhov, V. Kreslavski, S. Allakhverdiev","doi":"10.32615/ps.2022.047","DOIUrl":"https://doi.org/10.32615/ps.2022.047","url":null,"abstract":"The changes in photosynthetic activity, as well as the activity of nitrogen-metabolism enzymes, the intensity of lipid peroxidation, and proline content were studied in Triticum aestivum L. plants after their incubation at a low CO 2 concentration in a sealed chamber for 10 d. CO 2 deficiency (–CO 2 ) compared to normal CO 2 concentration (control) led to a decrease in the rate of O 2 gas exchange at the plateau of the light curve and quantum yield of photosynthesis. The maximum and effective quantum photochemical yields also decreased. CO 2 deficiency reduced the activity of nitrate reductase, but increased the activities of nitrite reductase, glutamine synthetase, and glutamate dehydrogenase, and promoted proline accumulation. It is assumed that with a lack of CO 2 , an excess of nitrogen-containing compounds occurs, which must be removed from metabolic processes. Also, we suggest the partial storage of nitrogen in the form of nitrogen-containing compounds such as proline.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"12 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88407908","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}
L. Zhang, Q. Chang, Q. Guo, X. Hou, L. Liu, Z. Zhu, S. Chen
Abbreviations : AQE – apparent quantum efficiency; BF – blue film; Car – carotenoid; Chl – chlorophyll; D – fraction of light absorbed in PSII antennae that is dissipated thermally; DM – dry mass; ETR – electron transfer rate; Ex – fraction of light absorbed in PSII antennae that is neither utilized in photosynthetic electron transport nor dissipated thermally; F 0 – minimal fluorescence yield of the dark-adapted state; F 0 ' – minimal fluorescence yield of the light-adapted state; FM – fresh mass; F m – maximal fluorescence yield in the dark-adapted state; F m ' – maximal fluorescence yield in the light-adapted state; F v '/F m ' – the efficiency of excitation capture of open PSII center; GF – green film; LCP – light-compensation point; LSP – light-saturation point; NPQ – nonphotochemical quenching coefficient; OA – oleanolic acid; P – fraction of light absorbed in PSII antennae that is utilized in PSII photochemistry; P Nmax – light- saturated net photosynthetic rate; q P – photochemical quenching coefficient; R/B – ratio of red light and blue light; To elucidate the adaptive strategies of Glechoma longituba in response to different light-quality colored films, the growth, photosynthesis, chloroplast ultrastructure, and triterpene acid accumulation were analyzed. In this study, four colored films improved electron transport and maintained the function of PSII, and allocated more light energy absorbed for photochemical reactions, thus increasing the photosynthetic capacity and ultimately improving dry mass accumulation. Additionally, blue film (BF) and green film (GF) enhanced photosynthesis by increasing stomatal openness and chlorophyll contents and maintaining chloroplast structural integrity, thereby promoting dry mass and triterpene acid (TA) accumulation of G. longituba . Red film excessively increased starch grains, inhibited photosynthate output and consequently reduced the concentration and yield of ursolic acid (UA). Yellow film decreased stomatal openness and chlorophyll concentrations, which was not conducive to chloroplast development, and also decreased the concentration and yield of UA. In conclusion, the application of BF and GF
{"title":"Different light-quality colored films affect growth, photosynthesis, chloroplast ultrastructure, and triterpene acid accumulation in Glechoma longituba plants","authors":"L. Zhang, Q. Chang, Q. Guo, X. Hou, L. Liu, Z. Zhu, S. Chen","doi":"10.32615/ps.2022.046","DOIUrl":"https://doi.org/10.32615/ps.2022.046","url":null,"abstract":"Abbreviations : AQE – apparent quantum efficiency; BF – blue film; Car – carotenoid; Chl – chlorophyll; D – fraction of light absorbed in PSII antennae that is dissipated thermally; DM – dry mass; ETR – electron transfer rate; Ex – fraction of light absorbed in PSII antennae that is neither utilized in photosynthetic electron transport nor dissipated thermally; F 0 – minimal fluorescence yield of the dark-adapted state; F 0 ' – minimal fluorescence yield of the light-adapted state; FM – fresh mass; F m – maximal fluorescence yield in the dark-adapted state; F m ' – maximal fluorescence yield in the light-adapted state; F v '/F m ' – the efficiency of excitation capture of open PSII center; GF – green film; LCP – light-compensation point; LSP – light-saturation point; NPQ – nonphotochemical quenching coefficient; OA – oleanolic acid; P – fraction of light absorbed in PSII antennae that is utilized in PSII photochemistry; P Nmax – light- saturated net photosynthetic rate; q P – photochemical quenching coefficient; R/B – ratio of red light and blue light; To elucidate the adaptive strategies of Glechoma longituba in response to different light-quality colored films, the growth, photosynthesis, chloroplast ultrastructure, and triterpene acid accumulation were analyzed. In this study, four colored films improved electron transport and maintained the function of PSII, and allocated more light energy absorbed for photochemical reactions, thus increasing the photosynthetic capacity and ultimately improving dry mass accumulation. Additionally, blue film (BF) and green film (GF) enhanced photosynthesis by increasing stomatal openness and chlorophyll contents and maintaining chloroplast structural integrity, thereby promoting dry mass and triterpene acid (TA) accumulation of G. longituba . Red film excessively increased starch grains, inhibited photosynthate output and consequently reduced the concentration and yield of ursolic acid (UA). Yellow film decreased stomatal openness and chlorophyll concentrations, which was not conducive to chloroplast development, and also decreased the concentration and yield of UA. In conclusion, the application of BF and GF","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"79 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83768830","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}
Abbreviations : Chl – chlorophyll; F 0 rise – post-illumination rise of chlorophyll a fluorescence; FR – far-red; flv – flavodiiron; FWHM – full width at half maximum; LL – low light; ML – measuring light; PAM – pulse amplitude modulation; PG – propyl gallate; PQ – plastoquinone; PTOX – plastid terminal oxidase; SP – saturating pulse. Acknowledgements : Yagut Allahverdiyeva-Rinne and Martina Jokel-Toivanen are thanked for generously donating C. reinhardtii cc4533 and the flvB mutant. Olli Virtanen is thanked for sharing his expertise and helping with green algal cultivation. Iiris Kuusisto is thanked for assistance in experiments. The Emil Aaltonen Foundation is thanked for its financial support (HM). The studies were conducted in the Molecular Plant Biology unit, the Finnish Infrastructure for Photosynthesis Research. Conflict of interest : The authors declare that they have no conflict of interest. We recently developed a chlorophyll a fluorescence method (activated F 0 rise) for estimating if a light wavelength preferably excites PSI or PSII in plants. Here, the method was tested in green microalgae: Scenedesmus quadricauda , Scenedesmus ecornis , Scenedesmus fuscus , Chlamydomonas reinhardtii , Chlorella sorokiniana , and Ettlia oleoabundans . The Scenedesmus species displayed a plant-like action spectra of F 0 rise, suggesting that PSII/PSI absorption ratio is conserved from higher plants to green algae. F 0 rise was weak in a strain of C. reinhardtii , C. sorokiniana , and E. oleoabundans . Interestingly, another C. reinhardtii strain exhibited a strong F 0 rise. The result indicates that the same illumination can lead to different redox states of the plastoquinone pool in different algae. Flavodiiron activity enhanced the F 0 rise, presumably by oxidizing the plastoquinone pool during pre-illumination. The activity of plastid terminal oxidase, in turn, diminished the F 0 rise, but to a small degree.
{"title":"Evaluation of visible-light wavelengths that reduce or oxidize the plastoquinone pool in green algae with the activated F0 rise method","authors":"H. Mattila, V. Havurinne, T. Antal, E. Tyystjärvi","doi":"10.32615/ps.2022.049","DOIUrl":"https://doi.org/10.32615/ps.2022.049","url":null,"abstract":"Abbreviations : Chl – chlorophyll; F 0 rise – post-illumination rise of chlorophyll a fluorescence; FR – far-red; flv – flavodiiron; FWHM – full width at half maximum; LL – low light; ML – measuring light; PAM – pulse amplitude modulation; PG – propyl gallate; PQ – plastoquinone; PTOX – plastid terminal oxidase; SP – saturating pulse. Acknowledgements : Yagut Allahverdiyeva-Rinne and Martina Jokel-Toivanen are thanked for generously donating C. reinhardtii cc4533 and the flvB mutant. Olli Virtanen is thanked for sharing his expertise and helping with green algal cultivation. Iiris Kuusisto is thanked for assistance in experiments. The Emil Aaltonen Foundation is thanked for its financial support (HM). The studies were conducted in the Molecular Plant Biology unit, the Finnish Infrastructure for Photosynthesis Research. Conflict of interest : The authors declare that they have no conflict of interest. We recently developed a chlorophyll a fluorescence method (activated F 0 rise) for estimating if a light wavelength preferably excites PSI or PSII in plants. Here, the method was tested in green microalgae: Scenedesmus quadricauda , Scenedesmus ecornis , Scenedesmus fuscus , Chlamydomonas reinhardtii , Chlorella sorokiniana , and Ettlia oleoabundans . The Scenedesmus species displayed a plant-like action spectra of F 0 rise, suggesting that PSII/PSI absorption ratio is conserved from higher plants to green algae. F 0 rise was weak in a strain of C. reinhardtii , C. sorokiniana , and E. oleoabundans . Interestingly, another C. reinhardtii strain exhibited a strong F 0 rise. The result indicates that the same illumination can lead to different redox states of the plastoquinone pool in different algae. Flavodiiron activity enhanced the F 0 rise, presumably by oxidizing the plastoquinone pool during pre-illumination. The activity of plastid terminal oxidase, in turn, diminished the F 0 rise, but to a small degree.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"14 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75261458","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}
R. Almeida, N. M. Silveira, M. T. Miranda, V. Pacheco, L. Cruz, M. A. Xavier, E. Machado, R. V. Ribeiro
Acknowledgments : This study was financed in part by the de de Pessoal de Nível Brasil (CAPES, Finance Code 001), which also a scholarship (grant no. Increasing the efficiency of photosynthesis in sugarcane canopies is the key for improving crop yield. Herein, we evaluated the photosynthetic performance along the canopy of ten sugarcane cultivars and three Saccharum species. Canopy morphological traits were evaluated, and leaf gas exchange was measured in the first (sun-exposed, +1) and the fourth (shaded, +4) fully expanded leaves and under low- and high-light conditions. Similar photosynthetic capacity was found in leaves +1 and +4 under high light in genotypes with a high leaf area index and a high fraction of the sky blocked by the foliage (> 85%). Interestingly, such canopy characteristics cause low light availability to leaves +4, suggesting the photosynthetic acclimation of these leaves to self-shading in some genotypes. We highlight IACCTC06-8126 and CTC4 as those genotypes with higher canopy photosynthetic capacity, presenting high leaf area, high photosynthetic rates in sun-exposed leaves, and high responsiveness of shaded leaves to increasing light availability.
致谢:本研究由de de Pessoal de Nível Brasil (CAPES, Finance Code 001)部分资助，该研究也是一项奖学金(资助号:提高甘蔗冠层光合作用效率是提高作物产量的关键。本研究对10个甘蔗品种和3个糖蜜品种的光合性能进行了研究。在弱光和强光条件下，测定了第1(光照+1)和第4(遮荫+4)完全展开叶片的冠层形态特征和叶片气体交换。在强光条件下，叶片+1和+4的光合能力相似，叶面积指数高，叶片遮挡天空的比例高(> 85%)。有趣的是，这样的冠层特征导致+4叶片的光利用率低，这表明在某些基因型中，这些叶片对自遮光的光合适应。我们强调IACCTC06-8126和CTC4基因型具有较高的冠层光合能力，表现出高叶面积、高光照叶片光合速率和遮荫叶片对增加的光利用率的高响应。
{"title":"Evidence of photosynthetic acclimation to self-shading in sugarcane canopies","authors":"R. Almeida, N. M. Silveira, M. T. Miranda, V. Pacheco, L. Cruz, M. A. Xavier, E. Machado, R. V. Ribeiro","doi":"10.32615/ps.2022.045","DOIUrl":"https://doi.org/10.32615/ps.2022.045","url":null,"abstract":"Acknowledgments : This study was financed in part by the de de Pessoal de Nível Brasil (CAPES, Finance Code 001), which also a scholarship (grant no. Increasing the efficiency of photosynthesis in sugarcane canopies is the key for improving crop yield. Herein, we evaluated the photosynthetic performance along the canopy of ten sugarcane cultivars and three Saccharum species. Canopy morphological traits were evaluated, and leaf gas exchange was measured in the first (sun-exposed, +1) and the fourth (shaded, +4) fully expanded leaves and under low- and high-light conditions. Similar photosynthetic capacity was found in leaves +1 and +4 under high light in genotypes with a high leaf area index and a high fraction of the sky blocked by the foliage (> 85%). Interestingly, such canopy characteristics cause low light availability to leaves +4, suggesting the photosynthetic acclimation of these leaves to self-shading in some genotypes. We highlight IACCTC06-8126 and CTC4 as those genotypes with higher canopy photosynthetic capacity, presenting high leaf area, high photosynthetic rates in sun-exposed leaves, and high responsiveness of shaded leaves to increasing light availability.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"28 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80438064","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}
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