Photosynthetica最新文献

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 1.6 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":"https://doi.org/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":1.6,"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 1.6 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":"https://doi.org/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":1.6,"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 1.6 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

Impact of tetraploidization on morphophysiological leaf traits in the drought tolerant 'de Ramellet' tomato landrace. 四倍体化对耐旱番茄地方品种叶片形态生理性状的影响。

IF 1.6 4区生物学

Photosynthetica Pub Date : 2026-01-20 eCollection Date: 2026-01-01 DOI: 10.32615/ps.2026.002

P Cerdá-Bennasser, M Fullana-Pericàs, P Aguiló-Nicolau, J Pellicer, J Galmés, M À Conesa

{"title":"Impact of tetraploidization on morphophysiological leaf traits in the drought tolerant 'de Ramellet' tomato landrace.","authors":"P Cerdá-Bennasser, M Fullana-Pericàs, P Aguiló-Nicolau, J Pellicer, J Galmés, M À Conesa","doi":"10.32615/ps.2026.002","DOIUrl":"https://doi.org/10.32615/ps.2026.002","url":null,"abstract":"Tetraploidization was induced in the drought-tolerant tomato landrace 'de Ramellet' to evaluate its physiological and anatomical response under well-watered (WW) and water-deficient (WD) conditions. Under WW, tetraploid plants exhibited approximately 40% lower stomatal density and approximately 80% larger stomata than diploids. Net photosynthetic rate (P N), intrinsic water-use efficiency, and intercellular CO2 concentration remained unchanged between diploids and tetraploids. Under WD, both genotypes reduced P N and stomatal conductance by similar proportions; however, only diploids decreased leaf area and adjusted stomatal density and size, whereas the tetraploid maintained stomatal traits similarly to those in WW conditions. However, both genotypes maintained similar photosynthetic capacity under WD despite different stomatal display and total pore area, which suggests the involvement of morphophysiological mechanisms beyond stomatal traits, such as root traits and hydraulic regulation.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"64 1","pages":"26-35"},"PeriodicalIF":1.6,"publicationDate":"2026-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13073068/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147691613","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

A reexamination of the Kitajima and Butler (1975) model for relating chlorophyll a fluorescence to photochemistry. 对Kitajima和Butler（1975）叶绿素A荧光与光化学关系模型的再检验。

IF 1.6 4区生物学

Photosynthetica Pub Date : 2026-01-12 eCollection Date: 2026-01-01 DOI: 10.32615/ps.2025.038

I V Konyukhov, A Stirbet, A B Rubin, G Govindjee

引用次数: 0

Twenty years of the International Conferences on Photosynthesis and Hydrogen Energy Research for Sustainability. 国际光合作用和可持续氢能研究会议二十年。

IF 1.6 4区生物学

Photosynthetica Pub Date : 2025-12-31 eCollection Date: 2025-01-01 DOI: 10.32615/ps.2025.035

A W D Larkum, R Subramanyam, G Govindjee, S I Allakhverdiev

{"title":"Twenty years of the International Conferences on Photosynthesis and Hydrogen Energy Research for Sustainability.","authors":"A W D Larkum, R Subramanyam, G Govindjee, S I Allakhverdiev","doi":"10.32615/ps.2025.035","DOIUrl":"10.32615/ps.2025.035","url":null,"abstract":"The International Conference on \"Photosynthesis and Hydrogen Energy Research\" was inaugurated in 2004 in Trois Rivières, Canada, as \"Photosynthesis and Post-Genomics Era\". It was conceived by its founders, Suleyman I. Allakhverdiev (Russia), Vyacheslav (Slava) Klimov (Russia), Robert Carpentier (Canada), and Prasanna Mohanty (India) to be an alternating conference to the bigger International Congress on Photosynthesis, which was then held every three years. The name was changed to the International Conference on Photosynthesis (ICP) in 2011. In 2013, \"Hydrogen Production\" was added, and then finally the current name, \"International Conference on Photosynthesis and Hydrogen Energy Research for Sustainability\", was used in 2015. The conferences over the last twenty years have been held in three continents - North America, Europe, and Asia - and have been very successful in attracting participants with the latest ideas in photosynthesis, hydrogen production, and energy sustainability. Here we describe all 12 conferences, with details of the major events of each conference. Major points of the conference were: (1) Recent advances in the understanding of the basic mechanisms of water splitting (photosystem II) and the reactions around photosystem I in photosynthetic organisms. (2) The role of hydrogen production in photosynthesis. (3) The role of innovations in photosynthesis and hydrogen production in the development of global sustainability.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"63 4","pages":"374-384"},"PeriodicalIF":1.6,"publicationDate":"2025-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12805458/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145998797","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

Recent advances in plant stress analysis using chlorophyll a fluorescence. 利用叶绿素a荧光分析植物胁迫的研究进展。

IF 1.6 4区生物学

Photosynthetica Pub Date : 2025-12-29 eCollection Date: 2025-01-01 DOI: 10.32615/ps.2025.037

K W Chang, H Tang, L J Fu, Q Xia, Z Y Pan, J L Tan, V Lysenko, Y Guo

引用次数: 0

Unravelling the differential responses of critically endangered Onobrychis conferta populations to drought and salinity stress. 揭示极度濒危的Onobrychis conferta种群对干旱和盐度胁迫的差异反应。

IF 1.6 4区生物学

Photosynthetica Pub Date : 2025-12-16 eCollection Date: 2025-01-01 DOI: 10.32615/ps.2025.034

A Sakhraoui, H B Ltaeif, J M Castillo, S Rouz

{"title":"Unravelling the differential responses of critically endangered Onobrychis conferta populations to drought and salinity stress.","authors":"A Sakhraoui, H B Ltaeif, J M Castillo, S Rouz","doi":"10.32615/ps.2025.034","DOIUrl":"10.32615/ps.2025.034","url":null,"abstract":"Understanding stress responses of endangered plants is vital for their conservation under climate change. We examined the effects of iso-osmotic drought (PEG) and salinity (NaCl) on the growth and physiology of three populations of the critically endangered legume Onobrychis conferta subsp. conferta (OC1, OC2, OC3) endemic to North-Western Tunisia. Both stresses reduced photosynthesis, stomatal conductance, intercellular CO2, and carboxylation efficiency, while increasing intrinsic water-use efficiency. PSII photoinhibition (Fv/Fm decline) occurred after 6 d. Prolonged stress suppressed growth and water content, particularly under salinity, but enhanced root elongation and root-to-shoot ratios in OC1 and OC2. OC3, from dry grasslands, showed higher water retention, photosynthetic efficiency, and adaptive morphology than OC1 (Pinus forest) and OC2 (watercourse edge), highlighting ecotype-dependent tolerance. OC1 exhibited increased root allocation under salinity, exhibiting a salt-avoidance strategy. Identifying resilient ecotypes is crucial for conservation, restoration, and adaptation of O. conferta to increasing drought and salinity.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"63 4","pages":"346-357"},"PeriodicalIF":1.6,"publicationDate":"2025-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12805459/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145998785","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

Increase in photosynthetic carbon assimilation and gas exchange through foliar application of melatonin in green bean plants. 叶面施用褪黑素增加绿豆植物光合碳同化和气体交换。

IF 1.6 4区生物学

Photosynthetica Pub Date : 2025-12-15 eCollection Date: 2025-01-01 DOI: 10.32615/ps.2025.036

C A Ramírez-Estrada, E H Ochoa-Chaparro, E Navarro-León, J C Anchondo-Paéz, J J PatiñO-Cruz, C L Franco-Lagos, A Alvarez-Monge, E Sánchez

{"title":"Increase in photosynthetic carbon assimilation and gas exchange through foliar application of melatonin in green bean plants.","authors":"C A Ramírez-Estrada, E H Ochoa-Chaparro, E Navarro-León, J C Anchondo-Paéz, J J PatiñO-Cruz, C L Franco-Lagos, A Alvarez-Monge, E Sánchez","doi":"10.32615/ps.2025.036","DOIUrl":"10.32615/ps.2025.036","url":null,"abstract":"Crop productivity depends largely on photosynthetic efficiency, which is key to converting light energy into assimilates for biomass accumulation. The use of biostimulants such as melatonin (MEL) has emerged as a sustainable alternative to improve internal processes in plants and increase production. However, its effect on beans has not yet been clearly described. This study evaluated the foliar application of MEL on physiological and productive variables of Strike beans (Phaseolus vulgaris L.). The plants were grown in vermiculite/perlite substrate (2:1) for 60 d, applying MEL [0, 1, 10, and 100 μM] weekly from 15 d after sowing. All three doses increased biomass and yield; treatment with 100 μM increased biomass by 64.9%, and 1 μM increased yield by 223.7%. Photosynthetic rate and transpiration also improved, with 10 μM being the most effective dose. Finally, sucrose concentration increased by up to 81%. Therefore, the results show MEL as a potential biostimulant for Strike bean production.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"63 4","pages":"340-345"},"PeriodicalIF":1.6,"publicationDate":"2025-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12805457/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145998788","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

Gordon Research Conference on Photosynthesis 2025: Mechanisms of the Process Driving the Biosphere Through the Lenses of Experiment and Computation. 2025年戈登光合作用研究会议：通过实验和计算的镜头驱动生物圈的过程机制。

IF 1.6 4区生物学

Photosynthetica Pub Date : 2025-11-18 eCollection Date: 2025-01-01 DOI: 10.32615/ps.2025.033

C J Gisriel, J Liu, D A Flesher, K E Redding

引用次数: 0