Photosynthetica最新文献

Effect of LED spectra on growth, physiology, and biochemical profiles of African marigold (Tagetes erecta L.). LED光谱对非洲万寿菊生长、生理生化特征的影响。

IF 2 4区生物学

Photosynthetica Pub Date : 2026-07-02 eCollection Date: 2026-01-01 DOI: 10.32615/ps.2026.018

N H Nguyen, Q Phan, H T T Chu, Q C Tong, T T H Hoang, T Q Tran, B N Bui, T V Nguyen, Q T Ho, H H Chu, P T Do

引用次数: 0

Happy 95^th birthday to Pierre Joliot, a brilliant scientist and a wonderful friend. 祝皮埃尔·约里奥95岁生日快乐，他是一位杰出的科学家，也是一位好朋友。

IF 2 4区生物学

Photosynthetica Pub Date : 2026-07-02 eCollection Date: 2026-01-01 DOI: 10.32615/ps.2026.019

G Govindjee, B D Bruce

{"title":"Happy 95th birthday to Pierre Joliot, a brilliant scientist and a wonderful friend.","authors":"G Govindjee, B D Bruce","doi":"10.32615/ps.2026.019","DOIUrl":"10.32615/ps.2026.019","url":null,"abstract":"It is both a privilege and a pleasure to celebrate the upcoming 95th birthday of Pierre Joliot, one of the most influential figures in modern photosynthesis research. Across more than seven decades of scientific activity, Pierre has transformed our understanding of oxygenic photosynthesis through pioneering studies of oxygen evolution, excitation-energy transfer, photosynthetic electron transport, and membrane bioenergetics. His discoveries helped establish fundamental concepts that continue to guide contemporary research, including the now-classic period-four oscillation of oxygen evolution and the mechanistic framework underlying the Kok-Joliot model of water oxidation. Pierre Joliot is also part of one of the most remarkable scientific families in history. The Curie-Joliot family has been associated with three Nobel Prizes and generations of groundbreaking discoveries that have shaped both physics and chemistry. Yet Pierre's own scientific accomplishments stand firmly on their own merit and have earned him an enduring place among the pioneers of photosynthesis research. In this tribute, we briefly discuss the origins of the Joliot and Joliot-Curie names, summarize Pierre's education, scientific career, leadership roles, and honors, and highlight selected contributions that have profoundly influenced our understanding of photosynthesis. Above all, we celebrate a scientist whose curiosity, creativity, rigor, and humanity have inspired colleagues, students, and friends around the world.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"64 2","pages":"119-125"},"PeriodicalIF":2.0,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13403237/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148606381","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

Physiological mechanism by which exogenous salicylic acid alleviates salt stress injury in Osmanthus fragrans seedlings. 外源水杨酸缓解桂花幼苗盐胁迫损伤的生理机制

IF 2 4区生物学

Photosynthetica Pub Date : 2026-07-02 eCollection Date: 2026-01-01 DOI: 10.32615/ps.2026.014

C Y Guo, E Y Xue, C J Meng, X C Du, J D Zhang, M Yue

{"title":"Physiological mechanism by which exogenous salicylic acid alleviates salt stress injury in Osmanthus fragrans seedlings.","authors":"C Y Guo, E Y Xue, C J Meng, X C Du, J D Zhang, M Yue","doi":"10.32615/ps.2026.014","DOIUrl":"10.32615/ps.2026.014","url":null,"abstract":"Salicylic acid (SA) mitigates salt stress in plants, yet its combined effects with salinity on Osmanthus fragrans remain unstudied. O. fragrans is a key Chinese ornamental tree, whose growth and use are restricted by salinization. Therefore, we aimed to evaluate the effect of SA application on O. fragrans under salt stress. O. fragrans seedlings were subjected to NaCl, SA, and NaCl+SA treatments, and their physiological and growth responses to salt stress were examined. Under NaCl, plant height, leaf mass per area, photosynthetic rate, and pigments of O. fragrans decreased by 29.5, 20.6, 42.2, and 29.2%, respectively. Notably, the SA application alleviated these effects by enhancing photosynthesis and the activities of antioxidant enzymes, improving photosynthetic pigments, and the contents of compatible solutes. The findings provide important insights into physiological mechanisms underlying SA-mediated salt tolerance, and provide a practical basis for the application of SA in improving the growth of O. fragrans in saline soils.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"64 2","pages":"126-136"},"PeriodicalIF":2.0,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13403241/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148606407","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

Drought stress-induced changes in PSII functioning in ecologically contrasting plants: chlorophyll fluorescence study of poikilohydric and homoiohydric species. 干旱胁迫诱导生态对比植物PSII功能的变化：多水合植物和同水合植物叶绿素荧光研究

IF 2 4区生物学

Photosynthetica Pub Date : 2026-06-10 eCollection Date: 2026-01-01 DOI: 10.32615/ps.2026.012

J Hájek, A Puhovkin, J Lang, S I Ul Haq, M Bernatová, D Giordano, J Sekerák, M Barták

{"title":"Drought stress-induced changes in PSII functioning in ecologically contrasting plants: chlorophyll fluorescence study of poikilohydric and homoiohydric species.","authors":"J Hájek, A Puhovkin, J Lang, S I Ul Haq, M Bernatová, D Giordano, J Sekerák, M Barták","doi":"10.32615/ps.2026.012","DOIUrl":"10.32615/ps.2026.012","url":null,"abstract":"Dehydration reduces photosynthetic performance in leaves and other photosynthetic organs in response to drought. This decline is linked to changes in chlorophyll fluorescence, which reflects reduced photosystem II activity and increased protective non-photochemical quenching (NPQ). This study examined NPQ dynamics during desiccation across diverse species, including lichens, mosses, conifers, crops, and C3 and C4 plants, using the method of NPQ induction and relaxation curves. Gradual dehydration from a full-hydration state (RWC 100%) to complete dryness (RWC 0%) was applied in order to compare poikilohydric and homoiohydric species. NPQmax (light period), NPQrelax (dark period end), and the initial slopes of NPQ rise (α) and decline (β) were evaluated. Relative electron transport rate curves were also assessed. Results showed the above NPQ parameters are highly sensitive to dehydration, suggesting their usefulness - along with standard maximum (FV/FM) and effective quantum yield (ΦPSII) - as early indicators of drought stress in PSII across plant groups.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"64 2","pages":"95-109"},"PeriodicalIF":2.0,"publicationDate":"2026-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13403240/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148606390","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

Revealing differences in the invasiveness of Sphagneticola trilobata under different light environments based on physiological and morphological plasticity. 基于生理和形态可塑性揭示三叶藻在不同光环境下入侵的差异。

IF 2 4区生物学

Photosynthetica Pub Date : 2026-05-14 eCollection Date: 2026-01-01 DOI: 10.32615/ps.2026.009

X T Zheng, H Zhu, Y Z Zheng, Y S Wang, M Ding, J X Wang, Z C Yu

{"title":"Revealing differences in the invasiveness of Sphagneticola trilobata under different light environments based on physiological and morphological plasticity.","authors":"X T Zheng, H Zhu, Y Z Zheng, Y S Wang, M Ding, J X Wang, Z C Yu","doi":"10.32615/ps.2026.009","DOIUrl":"10.32615/ps.2026.009","url":null,"abstract":"Studies of the physiological and morphological characteristics of invasive plants contribute to understanding their invasive capacity. However, it remains unclear whether the same invasive plant species relies equally on morphological and physiological traits to enhance its invasiveness potential across different light habitats. In this study, the invasive plant Sphagneticola trilobata (L.) Pruski was used to examine eight morphological traits and nine physiological traits of the leaf under contrasting light conditions. Results revealed that under full light, growth, biomass, and all physiological traits, as well as most morphological traits of S. trilobata were significantly higher than those under low-light conditions. This suggests that S. trilobata achieves invasion success by altering its morphological and physiological traits. Notably, under full light, the species exhibited higher physiological plasticity but lower morphological plasticity. The study confirms that S. trilobata possesses greater invasive potential under full light, further underscoring the importance of physiological plasticity during the invasion process.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"64 2","pages":"82-94"},"PeriodicalIF":2.0,"publicationDate":"2026-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13403242/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148606359","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

Exploring prediction mechanisms for temperature-induced variation in maximum carboxylation rate from spectral reflectance across 450-850 nm in cucumber leaves. 利用450 ~ 850 nm光谱反射率研究黄瓜叶片温度诱导最大羧基化速率变化的预测机制。

IF 2 4区生物学

Photosynthetica Pub Date : 2026-04-13 eCollection Date: 2026-01-01 DOI: 10.32615/ps.2026.006

T Shibata, H Yamaguchi, S Kubota, D Yasutake, T Hirota, G Yokoyama

{"title":"Exploring prediction mechanisms for temperature-induced variation in maximum carboxylation rate from spectral reflectance across 450-850 nm in cucumber leaves.","authors":"T Shibata, H Yamaguchi, S Kubota, D Yasutake, T Hirota, G Yokoyama","doi":"10.32615/ps.2026.006","DOIUrl":"10.32615/ps.2026.006","url":null,"abstract":"Leaf spectral reflectance across 450-850 nm has been shown to predict maximum carboxylation rate (V cmax), which varies with leaf temperature (T leaf). However, the mechanism by which temperature-induced variation in V cmax is predicted from reflectance remains unclear. The objective of this study was to explore this mechanism using spectral reflectance across 450-850 nm. We measured V cmax across a range of T leaf (18-31°C) and reflectance in cucumber (Cucumis sativus L.) leaves. Partial least squares regression models moderately predicted V cmax (R² = 0.73), whereas T leaf was weakly predicted (R² = 0.32). When only visible reflectance (450-700 nm) was used, prediction accuracy for both V cmax and T leaf declined (R² = 0.59 and 0.17). Because predicting T leaf from reflectance suggests that temperature-related information may help predict temperature-induced variations in V cmax, our results indicate that reflectance in 700-850 nm possibly captures temperature-induced variation in V cmax.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"64 2","pages":"73-81"},"PeriodicalIF":2.0,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13403238/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148606402","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 and growth dynamics of Allagoptera arenaria (Gomes) Kuntze (Arecaceae) in a chronosequence in a Restinga restoration area. 雷斯廷加恢复区沙刺Allagoptera arenaria (Gomes) Kuntze（槟榔科）光合响应和生长动态的时间序列

IF 2 4区生物学

Photosynthetica Pub Date : 2026-04-07 eCollection Date: 2026-01-01 DOI: 10.32615/ps.2026.001

A J G Júnior, M M Mendes, F R Pires, A A Fernandes, A R Falqueto, L F T D Menezes

{"title":"Photosynthetic responses and growth dynamics of Allagoptera arenaria (Gomes) Kuntze (Arecaceae) in a chronosequence in a Restinga restoration area.","authors":"A J G Júnior, M M Mendes, F R Pires, A A Fernandes, A R Falqueto, L F T D Menezes","doi":"10.32615/ps.2026.001","DOIUrl":"10.32615/ps.2026.001","url":null,"abstract":"Knowledge about plant species' growth dynamics is essential in restoring degraded environments. In this study, we evaluated the growth dynamics of Allagoptera arenaria (Gomes) Kuntze in a chronosequence of plantations in the Restinga. The sampling was taken from three populations with different planting ages (n = 12): group GI - 8 months; GII - 4 years; GIII - 7 years. We analyzed biometric measurements, leaf traits, photosynthetic pigments, and chlorophyll a fluorescence. The GI group's maximum quantum yield of primary photochemistry was significantly higher. On the other hand, the energy dissipation by heat was significantly higher in GIII. Our findings demonstrate that A. arenaria has high ecophysiological plasticity as it can adjust its photosynthetic machinery to avoid permanent damage to the proteins and structures of the photosystems. GI plants group can invest in greater carbon allocation, which is essential for survival in the field, as observed in groups GII and GIII.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"64 2","pages":"64-72"},"PeriodicalIF":2.0,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13403235/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148606313","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

Exploring the differences in the invasion potential of Sphagneticola trilobata in three invasive habitats based on photosynthetic and photoprotective capacities. 基于光合和光保护能力探讨三叶藻在不同入侵生境中入侵潜力的差异。

IF 2 4区生物学

Photosynthetica Pub Date : 2026-03-26 eCollection Date: 2026-01-01 DOI: 10.32615/ps.2026.005

Z C Yu, H Zhu, Y Z Zheng, S Y Yu, Y F Liu, X L Lin, C L Peng, X T Zheng

{"title":"Exploring the differences in the invasion potential of Sphagneticola trilobata in three invasive habitats based on photosynthetic and photoprotective capacities.","authors":"Z C Yu, H Zhu, Y Z Zheng, S Y Yu, Y F Liu, X L Lin, C L Peng, X T Zheng","doi":"10.32615/ps.2026.005","DOIUrl":"10.32615/ps.2026.005","url":null,"abstract":"Few studies have simultaneously assessed the growth characteristics and invasion potential of invasive plants in different habitats by integrating photosynthetic physiology with photoprotective strategies. In this study, we compared the growth, photosynthetic physiology, and photoprotective strategies of the widespread invasive plant Sphagneticola trilobata in three representative habitats: farmland, woodland, and riverside. Our results showed that S. trilobata exhibited the highest growth performance in farmland, which correlated with the highest net photosynthetic rate, electron transfer rate, and antioxidant substances. Plants from the riverside habitat showed intermediate growth, with the highest quantum yield of unregulated energy dissipation at PSII. Plants in the woodland had the worst growth status. These findings suggest that S. trilobata possesses the strongest invasion potential in farmland, intermediate potential at the riverside, and the weakest in woodland. This study provides novel insights for habitat-specific invasion risk assessment of alien plant species.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"64 1","pages":"52-63"},"PeriodicalIF":2.0,"publicationDate":"2026-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13073061/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147691579","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

Elucidating copper ion interactions with carbonic anhydrase: insights from fluorescence quenching and thermodynamic analysis. 阐明铜离子与碳酸酐酶的相互作用：从荧光猝灭和热力学分析的见解。

IF 2 4区生物学

Photosynthetica Pub Date : 2026-03-10 eCollection Date: 2026-01-01 DOI: 10.32615/ps.2026.004

M S Shabanova, I M Huseynova, S K Zharmukhamedov, S I Allakhverdiev

{"title":"Elucidating copper ion interactions with carbonic anhydrase: insights from fluorescence quenching and thermodynamic analysis.","authors":"M S Shabanova, I M Huseynova, S K Zharmukhamedov, S I Allakhverdiev","doi":"10.32615/ps.2026.004","DOIUrl":"10.32615/ps.2026.004","url":null,"abstract":"Plant carbonic anhydrases (CAs) are essential metalloenzymes catalyzing reversible hydration of CO2 to HCO3⁻, thereby optimizing photosynthetic efficiency and carbon fixation in plants. They facilitate CO2 delivery to Rubisco, enhance carbon assimilation, and play a role in plant responses to stresses (such as drought, high salinity) by modulating stomatal conductance and internal CO2 concentrations. Despite the well-established physiological importance of plant CAs, the influence of metal ions, particularly copper (Cu2+), on their structure and activity remains inadequately understood. Here, bCA II is used as a well-characterized model enzyme to investigate enzyme-metal interactions. We employed intrinsic tryptophan and tyrosine fluorescence quenching to elucidate the binding mechanism of Cu2+ with bCA II. Our results demonstrate static quenching, indicative of ground-state complex formation, with binding parameters assessed at 288 K and 298 K [Kb = (2.64 ± 0.15 and 1.68 ± 0.54) × 103, M-1, n ≈ 1] and negative ΔG°, ΔH°, ΔS°.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"64 1","pages":"43-51"},"PeriodicalIF":2.0,"publicationDate":"2026-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13073058/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147691606","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

Characteristics of photosynthetic function in different leaf ages of 'Tieton' sweet cherry in a greenhouse. 温室‘铁顿’甜樱桃不同叶龄光合功能特征

IF 2 4区生物学

Photosynthetica Pub Date : 2026-02-18 eCollection Date: 2026-01-01 DOI: 10.32615/ps.2026.003

J Y Ai, F Cai, Y Chen, M L He, C Luo, Q J Zhang

引用次数: 0