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Photosynthetica最新文献

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Changes of Cd content in chloroplasts are mirrored by the activity of photosystem I, but not by photosystem II. 叶绿体中Cd含量的变化反映光系统I的活性，而不反映光系统II的活性。
IF 2.1 4区 生物学
Photosynthetica Pub Date : 2024-05-07 eCollection Date: 2024-01-01 DOI: 10.32615/ps.2024.018
E A Lysenko, V V Kusnetsov
{"title":"Changes of Cd content in chloroplasts are mirrored by the activity of photosystem I, but not by photosystem II.","authors":"E A Lysenko, V V Kusnetsov","doi":"10.32615/ps.2024.018","DOIUrl":"10.32615/ps.2024.018","url":null,"abstract":"<p><p>We searched for a direct Cd action on the photosynthetic electron transport chain using induced chlorophyll fluorescence and P<sub>700</sub> light absorption. Young barley and maize plants were treated with Cd in concentrations of toxic (80 μM) and nearly lethal (250 μM). The maximal and relative photochemical activities of PSI, its major limitation at the donor side, and partially acceptor-side limitation of PSII changed in agreement with Cd accumulation in the corresponding chloroplasts. Acceptor-side limitation of PSII increased with a direct Cd action at 80 μM that was overcome with an indirect Cd action at 250 μM. These alterations can be explained by Cd/Cu substitution in plastocyanin. The photochemical and nonphotochemical quenching by PSII varied diversely which cannot be explained unambiguously by any mechanism. The limitations of PSI [Y<sub>(ND)</sub>, Y<sub>(NA)</sub>] and PSII (q<sub>C</sub>) were compared for the first time. They were ranged: Y<sub>(NA)</sub> < q<sub>C</sub> < Y<sub>(ND)</sub>.</p>","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"62 2","pages":"187-203"},"PeriodicalIF":2.1,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11613828/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142801569","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
Heterocapsa cf. bohaiensis (dinoflagellate): identification and response to nickel and iron stress revealed through chlorophyll a fluorescence Heterocapsa cf. bohaiensis（甲藻）：通过叶绿素 a 荧光进行鉴定并揭示其对镍和铁胁迫的反应
IF 2.7 4区 生物学
Photosynthetica Pub Date : 2024-01-02 DOI: 10.32615/ps.2023.038
V. Mériot, A. Roussel, N. Brunet, N. Chomerat, G. Bilien, L. LE DÉAN, V. Berteaux-Lecellier, N. Coulombier, N. Lebouvier, T. Jauffrais
{"title":"Heterocapsa cf. bohaiensis (dinoflagellate): identification and response to nickel and iron stress revealed through chlorophyll a fluorescence","authors":"V. Mériot, A. Roussel, N. Brunet, N. Chomerat, G. Bilien, L. LE DÉAN, V. Berteaux-Lecellier, N. Coulombier, N. Lebouvier, T. Jauffrais","doi":"10.32615/ps.2023.038","DOIUrl":"https://doi.org/10.32615/ps.2023.038","url":null,"abstract":"","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"48 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139452865","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
Monitoring the photosynthetic activity at single-cell level in Haematococcus lacustris 在单细胞水平监测漆膜血球菌的光合作用活动
IF 2.7 4区 生物学
Photosynthetica Pub Date : 2023-12-19 DOI: 10.32615/ps.2023.042
P. Patil, K. Nagy, Á. Ábrahám, I. Vass, M. Szabó
{"title":"Monitoring the photosynthetic activity at single-cell level in Haematococcus lacustris","authors":"P. Patil, K. Nagy, Á. Ábrahám, I. Vass, M. Szabó","doi":"10.32615/ps.2023.042","DOIUrl":"https://doi.org/10.32615/ps.2023.042","url":null,"abstract":"","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"9 24","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138959972","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
Microdomains heterogeneity in the thylakoid membrane proteins visualized by super-resolution microscopy 用超分辨率显微镜观察类囊体膜蛋白的微域异质性
IF 2.7 4区 生物学
Photosynthetica Pub Date : 2023-12-19 DOI: 10.32615/ps.2023.043
R. Kaňa, B. Šedivá, O. Prášil
{"title":"Microdomains heterogeneity in the thylakoid membrane proteins visualized by super-resolution microscopy","authors":"R. Kaňa, B. Šedivá, O. Prášil","doi":"10.32615/ps.2023.043","DOIUrl":"https://doi.org/10.32615/ps.2023.043","url":null,"abstract":"","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":" 27","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138961729","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
Editorial. 社论。
IF 2.1 4区 生物学
Photosynthetica Pub Date : 2023-12-19 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2023.044
P H Lambrev, T Janda
{"title":"Editorial.","authors":"P H Lambrev, T Janda","doi":"10.32615/ps.2023.044","DOIUrl":"10.32615/ps.2023.044","url":null,"abstract":"","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"61 4","pages":"398-404"},"PeriodicalIF":2.1,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11586841/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142794770","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 reaction center/graphene bio-hybrid for low-power optoelectronics 用于低功率光电子学的光合反应中心/石墨烯生物杂化材料
4区 生物学
Photosynthetica Pub Date : 2023-11-10 DOI: 10.32615/ps.2023.041
J. VUJIN, T. SZABÓ, R. PANAJOTOVIC, A.G. VÉGH, L. RINYU, L. NAGY
{"title":"Photosynthetic reaction center/graphene bio-hybrid for low-power optoelectronics","authors":"J. VUJIN, T. SZABÓ, R. PANAJOTOVIC, A.G. VÉGH, L. RINYU, L. NAGY","doi":"10.32615/ps.2023.041","DOIUrl":"https://doi.org/10.32615/ps.2023.041","url":null,"abstract":"Photosynthetic reaction center (pRC) purified from <i>Rhodobacter sphaeroides</i> 2.4.1 purple bacteria was deposited on a graphene carrier exfoliated from the liquid phase and layered on the surface of SiO<sub>2</sub>/Si substrate for optoelectronic application. Light-induced changes in the drain-source current <i>vs</i>. gate voltage are demonstrated. Dried photosynthetic reaction centers/graphene composite on SiO<sub>2</sub>/Si shows a photochemical/-physical activity, as a result of interaction with the current flow in the graphene carrier matrix. The current changes are sensitive to light, due to the contribution from the charge separation in the pRC, and to the applied gate and drain-source voltages.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"120 32","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135137723","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
Exogenous calcium-alleviating effect on sodium salt-induced phytotoxicity associated with changes in photosynthetic characteristics of wheat seedlings 外源钙缓解钠盐诱导小麦幼苗光合特性变化对植物毒性的影响
4区 生物学
Photosynthetica Pub Date : 2023-11-06 DOI: 10.32615/ps.2023.039
Y. ZHANG, G.M. LIU, Z.F. WANG, A.M. ZHANG, Y.L. YANG
{"title":"Exogenous calcium-alleviating effect on sodium salt-induced phytotoxicity associated with changes in photosynthetic characteristics of wheat seedlings","authors":"Y. ZHANG, G.M. LIU, Z.F. WANG, A.M. ZHANG, Y.L. YANG","doi":"10.32615/ps.2023.039","DOIUrl":"https://doi.org/10.32615/ps.2023.039","url":null,"abstract":"To evaluate the Ca-alleviating effect on sodium salt-induced phytotoxicity, wheat (Triticum aestivum L.) cultivar Xihan 3 seedlings were treated with 150 mM NaCl, CaCl2 (0.1, 0.5, and 1 mM), Ca2+-channel blocker LaCl3, and/or Ca2+ chelator, ethylene glycol tetraacetic acid (EGTA) alone or in combination, to investigate seedling growth and photosynthetic characteristics. NaCl (150 mM) exposure alone suppressed a growth of seedling, weakened photosynthetic efficiency and chlorophyll (Chl) fluorescence parameters, reduced photosynthetic pigments, Ca2+ and calmodulin (CaM) contents, and downregulated TaCaM expression in wheat leaves. The opposite changes of these parameters were caused by 0.5 or 1 mM CaCl2 treatments alone. Moreover, 0.5 or 1 mM CaCl2 application effectively alleviated sodium salt-induced changes of these parameters, which was blocked by LaCl3 or EGTA. Therefore, exogenous Ca presence effectively promoted the growth of NaCl-stressed wheat seedlings through the enhancement of photosynthesis and Chl synthesis mediated by the Ca-CaM signal.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"16 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135634143","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
In appreciation of an ingenious scientist and a great friend: Győző Garab 感谢一位天才科学家和一位伟大的朋友:Győző Garab
4区 生物学
Photosynthetica Pub Date : 2023-10-23 DOI: 10.32615/ps.2023.040
G. GOVINDJEE
{"title":"In appreciation of an ingenious scientist and a great friend: Győző Garab","authors":"G. GOVINDJEE","doi":"10.32615/ps.2023.040","DOIUrl":"https://doi.org/10.32615/ps.2023.040","url":null,"abstract":"","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"21 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135368332","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
Regulation of photosynthesis and water-use efficiency in pima and upland cotton species subjected to drought and recovery 旱地棉和旱地棉光合作用和水分利用效率的调控
4区 生物学
Photosynthetica Pub Date : 2023-10-19 DOI: 10.32615/ps.2023.036
J.M. HAN, J. FLEXAS, D.L. XIONG, J. GALMÉS, Y.L. ZHANG
{"title":"Regulation of photosynthesis and water-use efficiency in pima and upland cotton species subjected to drought and recovery","authors":"J.M. HAN, J. FLEXAS, D.L. XIONG, J. GALMÉS, Y.L. ZHANG","doi":"10.32615/ps.2023.036","DOIUrl":"https://doi.org/10.32615/ps.2023.036","url":null,"abstract":"Photosynthesis is extremely sensitive to drought and decreases due to co-occurring stomatal, mesophyll, and biochemical limitations. Few studies have shown the effects of a drought cycle (drought-rewatering) on photosynthesis and water-use efficiency (WUE) in cotton. Here, the dynamics of photosynthesis in upland (<i>Gossypium hirsutum</i>) and pima (<i>G. barbadense</i>) cotton were analyzed during a drought cycle. While both species decreased net CO<sub>2</sub> assimilation rate (<i>P</i><sub>N</sub>) to a similar extent under drought, in pima cotton rewatering rapidly restored <i>P</i><sub>N</sub>, the stomatal conductance (<i>g</i><sub>s</sub>), the maximum carboxylation rate (<i>V</i><sub>cmax</sub>), and the maximum electron transport rate above the control level. Meanwhile, the response of leaf intrinsic WUE (WUE<sub>i</sub>) to drought and recovery was different between the two cotton species, which was mainly co-regulated by <i>V</i><sub>cmax</sub> and <i>g</i><sub>s</sub>. In conclusion, pima and upland cotton exhibit different response patterns of <i>P</i><sub>N</sub> and WUE<sub>i</sub> during the whole process of drought and recovery.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135730357","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
HISTORY & BIOGRAPHY George Edward Hoch (1931-2023): a great photosynthesis scholar, a real family man, and a wonderful friend to many 历史上,乔治·爱德华·霍克(1931-2023):一位伟大的光合作用学者，一个真正的顾家男人，也是许多人的好朋友
4区 生物学
Photosynthetica Pub Date : 2023-10-19 DOI: 10.32615/ps.2024.001
G. GOVINDJEE
{"title":"HISTORY &amp; BIOGRAPHY George Edward Hoch (1931-2023): a great photosynthesis scholar, a real family man, and a wonderful friend to many","authors":"G. GOVINDJEE","doi":"10.32615/ps.2024.001","DOIUrl":"https://doi.org/10.32615/ps.2024.001","url":null,"abstract":"We present here a tribute to George E. Hoch, one of the top leaders in deciphering the primary steps of oxygenic photosynthesis. After providing his academic background, we discuss his selected research on the photoreactions of photosynthesis. We end this tribute with reminiscences by Robert S. Knox, Jerome Kaye, and Doris Teichler-Zallen.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135731782","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
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