Photosynthetica最新文献_第7页

The photosynthetic function analysis for leaf photooxidation in rice. 水稻叶片光氧化的光合功能分析。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2023-02-20 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2023.004

H Xu, X Chu, K J Gou, D X Jiang, Q Q Li, C G Lv, Z P Gao, G X Chen

{"title":"The photosynthetic function analysis for leaf photooxidation in rice.","authors":"H Xu, X Chu, K J Gou, D X Jiang, Q Q Li, C G Lv, Z P Gao, G X Chen","doi":"10.32615/ps.2023.004","DOIUrl":"10.32615/ps.2023.004","url":null,"abstract":"Photooxidative damage causes early leaf senescence and plant cell death. In this study, a light-sensitive rice cultivar, 812HS, and a non-light-sensitive cultivar, 812S, were used to investigate early leaf photooxidation. Leaf tips of 812HS exhibited yellowing under a light intensity of 720 μmol(photon) m-2 s-1, accompanied by a decrease in chlorophyll and carotenoids, but 812S was unaffected. The photosynthetic performance of 812HS was also poorer than that of 812S. The H2O2, O2 ·-, and malondialdehyde content increased sharply in 812HS, and associated antioxidant enzymes were inhibited. The degradation of core proteins in both PSI and PSII, as well as other photosynthesis-related proteins, was accelerated in 812HS. When shaded [180 μmol(photon) m-2 s-1], 812HS recovered to normal. Therefore, our findings suggested excess light disturbed the balance of ROS metabolism, leading to the destruction of the antioxidant system and photosynthetic organs, and thus triggering the senescence of rice leaves.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"20 1","pages":"48-57"},"PeriodicalIF":2.1,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515825/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75649271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the evolution of the concept of two light reactions and two photosystems for oxygenic photosynthesis: A personal perspective. 氧光合作用中两个光反应和两个光系统概念的演变：个人观点。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2023-02-16 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2023.006

G Govindjee

引用次数: 0

Improving salt tolerance of bean (Phaseolus vulgaris L.) with hydrogen sulfide. 硫化氢提高菜豆耐盐性。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2023-02-10 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2023.005

M Ekinci, M Turan, S Ors, A Dursun, E Yildirim

{"title":"Improving salt tolerance of bean (Phaseolus vulgaris L.) with hydrogen sulfide.","authors":"M Ekinci, M Turan, S Ors, A Dursun, E Yildirim","doi":"10.32615/ps.2023.005","DOIUrl":"10.32615/ps.2023.005","url":null,"abstract":"The current study examined the H2S applications on growth, biochemical and physiological parameters of bean seedlings under saline conditions. The findings of the study indicated that salt stress decreased plant growth and development, photosynthetic activity, and mineral and hormone content [excluding abscisic acid (ABA)] in bean seedlings. Plant and root fresh mass and dry mass with H2S applications increased as compared to the control treatment at the same salinity level. Both salinity and H2S treatments significantly affected the net assimilation rate, stomatal conductance, transpiration rate, and intercellular CO2 content of bean seedlings. Significant increases occurred in H2O2, malondialdehyde (MDA), proline, sucrose content, enzyme activity, and ABA content with salt stress. However, H2S applications inhibited the effects of salinity on plant growth, photosynthetic activity, and mineral content in beans. H2S applications reduced H2O2, MDA, proline, sucrose content, enzyme activity, and ABA content in beans. As a result, exogenous H2S applications could mitigate the negative impacts of salinity in beans.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"37 1","pages":"25-36"},"PeriodicalIF":2.1,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515852/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88696725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photosynthetic performance of walnut leaves during the occurrence of leaf scorch. 核桃叶片焦化时叶片光合性能的变化。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2023-01-30 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2023.003

S W Wang, C J Xing, C F Zhang, T Guo, H L Hao, Z Y Zhang, S Wang, J M Shu

{"title":"Photosynthetic performance of walnut leaves during the occurrence of leaf scorch.","authors":"S W Wang, C J Xing, C F Zhang, T Guo, H L Hao, Z Y Zhang, S Wang, J M Shu","doi":"10.32615/ps.2023.003","DOIUrl":"10.32615/ps.2023.003","url":null,"abstract":"To clarify the effect of leaf scorch on walnut leaf photosynthesis, photosynthetic parameters were measured in Juglans regia 'Wen185' and 'Xinxin2' symptom trees (WS, XS) and symptomless trees (WH, XH). At the early stage of infection and under the low-grade leaf scorch, WS showed significantly lower net photosynthetic rate (P N), stomatal limitation (Ls), and higher intercellular CO2 concentration (C i) than those of WH. However, at the mid to late stage of infection and under the high-grade leaf scorch, WS showed significantly lower P N, C i, the maximal quantum yield of PSII photochemistry and higher Ls, minimal fluorescence yield of the dark-adapted state, nonphotochemical quenching than those of WH, which would occur once Juglans regia 'Xinxin2' was infected. The above results indicated the effect of leaf scorch on walnut leaf photosynthesis was related to the walnut varieties and the duration and severity of the disease. Under the influence of leaf scorch, the decline in photosynthesis of Juglans regia 'Wen185' leaves changed from stomatal to nonstomatal restriction, while Juglans regia 'Xinxin2' leaves showed always nonstomatal restriction.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"3 1","pages":"13-24"},"PeriodicalIF":2.1,"publicationDate":"2023-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515811/pdf/","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":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diurnal changes in the stomatal, mesophyll, and biochemical limitations of photosynthesis in well-watered greenhouse-grown strawberries. 水分充足的温室草莓气孔、叶肉和光合作用生化限制的日变化。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2023-01-25 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2023.001

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":"10.32615/ps.2023.001","url":null,"abstract":"The diurnal variations in the factors of photosynthesis reduction under well-watered greenhouse conditions remain poorly understood. We conducted diurnal measurements of gas exchange and chlorophyll fluorescence in strawberries (Fragaria × ananassa Duch.) for three sunny days. Quantitative limitation analysis was also conducted to investigate the diurnal variations of photosynthetic limitations [stomatal (S L), mesophyll (MC L), and biochemical limitation (B L)]. Under well-watered greenhouse conditions, a photosynthesis reduction was observed, and the respective limitations exhibited different diurnal changes based on the environmental stress severity. The main limitation was S L, varying between 11.3 and 27.1% around midday, whereas MC L and B L were in 4.3-14.2% and 1.7-8.5%, respectively, under relatively moderate conditions. However, both S L (11.2-34.2%) and MC L (4.8-26.4%) predominantly limited photosynthesis under relatively severe conditions, suggesting that stomatal closure was the main limitation and that the decline in mesophyll conductance was not negligible under strong environmental stress, even under well-watered greenhouse conditions.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"1 1","pages":"1-12"},"PeriodicalIF":2.1,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515859/pdf/","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":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Intraspecific variation in photosynthetic efficiency in soybean (Glycine max L.) varieties towards solar ultraviolet radiations. 大豆（Glycine max L.）品种光合效率对太阳紫外线辐射的种内变异

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-12-21 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2022.048

S S Baroniya, K Jumrani, M Baroniya, K N Guruprasad, M Landi, S Kataria

{"title":"Intraspecific variation in photosynthetic efficiency in soybean (Glycine max L.) varieties towards solar ultraviolet radiations.","authors":"S S Baroniya, K Jumrani, M Baroniya, K N Guruprasad, M Landi, S Kataria","doi":"10.32615/ps.2022.048","DOIUrl":"10.32615/ps.2022.048","url":null,"abstract":"In the current study, we used four soybean varieties PK-1029, PK-472, NRC-7, and Hardee to examine the effect of exclusion of solar UV radiation on photosynthetic efficiency and to test possible variety-dependent sensitivity to ambient UV (280-400 nm). Plants that were grown under UV exclusion filters had higher chlorophyll a and b, efficiencies of PSII and more active reaction centers indicated that PSII were substantially affected by solar UV radiation. The significant increase in net photosynthesis was linked to increased stomatal conductance and lower intercellular concentration of CO2 in UV-excluded plants. The exclusion of solar UV increased seed mass per plant in all soybean varieties as compared to the control; this indicates that ambient UV exclusions boost photosynthetic efficiency and improve soybean yield. The overall cumulative stress response index of four varieties implies that Hardee and PK-472 were more sensitive whereas NRC-7 and PK-1029 were resistant to ambient UV radiations.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"50 1","pages":"203-214"},"PeriodicalIF":2.1,"publicationDate":"2022-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515822/pdf/","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":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Happy birthday, Govindjee! 生日快乐，戈文杰！

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-12-21 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.052

O Prášil

引用次数: 0

Adaptive photosynthetic strategies of the invasive plant Sphagneticola trilobata and its hybrid to a low-light environment. 入侵植物三叶藻及其杂交种对弱光环境的适应性光合策略

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-12-20 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.051

W Q Ke, Y R Pan, L H Chen, J D Huang, J J Zhang, X Y Long, M L Cai, C L Peng

{"title":"Adaptive photosynthetic strategies of the invasive plant Sphagneticola trilobata and its hybrid to a low-light environment.","authors":"W Q Ke, Y R Pan, L H Chen, J D Huang, J J Zhang, X Y Long, M L Cai, C L Peng","doi":"10.32615/ps.2022.051","DOIUrl":"10.32615/ps.2022.051","url":null,"abstract":"In stressful environments, invasive plants acclimate more efficiently than native plants and hybridization mainly contributes to this process. We examined changes in the morphological characteristics, photosynthetic characteristics, and antioxidant capacity of Sphagneticola trilobata and its hybrids in a low-light environment to explore their invasiveness, with Sphagneticola calendulacea serving as the control. The morphological plasticity of S. trilobata was not dominant, the maximal photochemical efficiency of PSII, actual quantum yield of PSII, and electron transport rate of PSII increased and nonphotochemical quenching decreased, while S. calendulacea and the hybrid produced opposite results. S. trilobata showed fewer spots stained for reactive oxygen species in tissues, with an increase in superoxide dismutase activity. Although S. trilobata is a heliophilous plant, we found that the shade tolerance of S. trilobata and the hybrid were stronger than that of S. calendulacea, which may be one important mechanism of invasion.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"243 1","pages":"549-561"},"PeriodicalIF":2.1,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558596/pdf/","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":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photosynthetic responses of Eulophia dentata, Bletilla formosana, and Saccharum spontaneum under various photosynthetic photon flux density conditions. 齿藻、台湾白芨和自发糖在不同光合光子通量密度条件下的光合响应

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-12-16 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.050

Y-H Lai, K-H Lin, C-P Liu, T-S Liao, M-Y Huang, C-W Wang, C-I Chen

{"title":"Photosynthetic responses of Eulophia dentata, Bletilla formosana, and Saccharum spontaneum under various photosynthetic photon flux density conditions.","authors":"Y-H Lai, K-H Lin, C-P Liu, T-S Liao, M-Y Huang, C-W Wang, C-I Chen","doi":"10.32615/ps.2022.050","DOIUrl":"10.32615/ps.2022.050","url":null,"abstract":"This study aimed to determine the photosynthetic performance and differences in chlorophyll fluorescence (ChlF) parameters between Eulophia dentata and its companion species Bletilla formosana and Saccharum spontaneum when subjected to different photosynthetic photon flux density (PPFDs). Leaf surfaces were then illuminated with 50, 100 (low PPFDs), 300, 500, 800 (moderate PPFDs); 1,000; 1,500; and 2,000 (high PPFDs) μmol m-2·s-1, and the ChlF parameters were measured during the whole process. Increasing nonphotochemical quenching of ChlF and decreasing potential quantum efficiency of PSII, actual quantum efficiency of PSII, and quantum efficiency ratio of PSII in dark recovery from 0-60 min were observed in all leaves. A significant and negative relationship was detected between energy-dependent quenching (qE) and photoinhibition percent in three species under specific PPFD conditions, whereas a significant and positive relationship was detected between photoinhibitory quenching (qI) and photoinhibition percent. The qE and qI can be easily measured in the field and provide useful ecological indexes for E. dentata species restoration, habitat creation, and monitoring.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"40 1","pages":"539-548"},"PeriodicalIF":2.1,"publicationDate":"2022-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558585/pdf/","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":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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. 低CO2处理后小麦叶片光合性能、氮代谢酶活性及脯氨酸含量的变化

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-12-01 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2022.047

A Ivanov, A Kosobryukhov, V Kreslavski, S I Allakhverdiev

{"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 I Allakhverdiev","doi":"10.32615/ps.2022.047","DOIUrl":"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 CO2 concentration in a sealed chamber for 10 d. CO2 deficiency (-CO2) compared to normal CO2 concentration (control) led to a decrease in the rate of O2 gas exchange at the plateau of the light curve and quantum yield of photosynthesis. The maximum and effective quantum photochemical yields also decreased. CO2 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 CO2, 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":"190-202"},"PeriodicalIF":2.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515816/pdf/","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":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0