Photosynthetica最新文献

From spectrum to yield: advances in crop photosynthesis with hyperspectral imaging. 从光谱到产量：利用高光谱成像技术研究作物光合作用的进展。

IF 1.6 4区生物学

Photosynthetica Pub Date : 2025-07-08 eCollection Date: 2025-01-01 DOI: 10.32615/ps.2025.012

D Panda, S Mohanty, S Das, J Senapaty, D B Sahoo, B Mishra, M J Baig, L Behera

{"title":"From spectrum to yield: advances in crop photosynthesis with hyperspectral imaging.","authors":"D Panda, S Mohanty, S Das, J Senapaty, D B Sahoo, B Mishra, M J Baig, L Behera","doi":"10.32615/ps.2025.012","DOIUrl":"10.32615/ps.2025.012","url":null,"abstract":"Ensuring global food security requires noninvasive techniques for optimizing resource use and monitoring crop health. Hyperspectral imaging (HSI) enables the precise analysis of plant physiology by capturing spectral data across narrow bands. This review explores HSI's role in agriculture, particularly its integration with unmanned aerial vehicles, AI-driven analytics, and machine learning. These advancements allow real-time monitoring of photosynthesis, chlorophyll fluorescence, and carbon assimilation, linking spectral data to plant health and agronomic decisions. Key indicators such as solar-induced fluorescence and vegetation indices enhance crop stress detection. This work compares HSI-derived metrics in differentiating nutrient deficiencies, drought, and disease. Despite its potential, challenges remain in data standardization and spectral interpretation. This review discusses solutions such as molecular phenotyping and predictive modeling, for AI-driven precision agriculture. Addressing these gaps, HSI is poised to revolutionize farming, improve climate resilience, and ensure food security.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"63 2","pages":"196-233"},"PeriodicalIF":1.6,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12319944/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144789721","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

Thermal stability changes of photosynthesis during osmotic and salt stress in wheat varieties cultivated in Central Europe and Mediterranean North Africa. 渗透和盐胁迫下中欧和地中海北非小麦品种光合作用热稳定性的变化

IF 1.6 4区生物学

Photosynthetica Pub Date : 2025-07-08 eCollection Date: 2025-01-01 DOI: 10.32615/ps.2025.019

A Allem, R Tarnai, S B Tóth, W A E Abido, S Dulai

{"title":"Thermal stability changes of photosynthesis during osmotic and salt stress in wheat varieties cultivated in Central Europe and Mediterranean North Africa.","authors":"A Allem, R Tarnai, S B Tóth, W A E Abido, S Dulai","doi":"10.32615/ps.2025.019","DOIUrl":"10.32615/ps.2025.019","url":null,"abstract":"The thermal stability of photosynthetic apparatus under osmotic/salt stress was examined in wheat cultivars grown under different climatic conditions. The thermostability of nonstressed plants did not differ significantly from each other and it was not improved by osmotic treatment in the absence of light. In contrast, the salt stress resulted in better thermostability. This was also manifested in the temperature dependence of maximal quantum yield of PSII photochemistry. The temperature dependence of steady-state fluorescence and other photosynthetic parameters indicated a moderate reduction in thermal sensitivity of photosynthesis in well-watered plants which was further enhanced by osmotic, but even more by salt treatment. It seems likely that the osmotic stress-induced thermal stability increase of PSII occurs only in energized thylakoids. The temperature dependence of quantum yield of regulated energy dissipation seems to suggest that the secondary effects of lumen pH might have a role in the protective mechanisms concerning these stresses, but salt stress can also affect thermal stability in other ways as well.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"63 2","pages":"165-181"},"PeriodicalIF":1.6,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12319942/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144789728","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

The combined effect of Cd and high light stress on the photochemical processes in Arabidopsis thaliana. Cd和强光胁迫对拟南芥光化学过程的联合影响。

IF 1.6 4区生物学

Photosynthetica Pub Date : 2025-07-08 eCollection Date: 2025-01-01 DOI: 10.32615/ps.2025.020

D Giordanoj, M BartáK, J Hájek

{"title":"The combined effect of Cd and high light stress on the photochemical processes in Arabidopsis thaliana.","authors":"D Giordanoj, M BartáK, J Hájek","doi":"10.32615/ps.2025.020","DOIUrl":"10.32615/ps.2025.020","url":null,"abstract":"The adverse effects of cadmium on plants are accompanied by a limitation of photosynthesis, due to the production of reactive oxygen species, leading to oxidative damage to PSII and the disruption of key protein complexes involved in photosynthetic pathways. We investigated the effects of cadmium stress combined with high light in Arabidopsis thaliana, as dependent on the cadmium dose applied. The aim was to investigate the combined effect of the two stressors on photochemical processes with the hypothesis that Cd stress enhances the negative effect of the high light. The plants were treated with 0, 1, 10, and 50 mM Cd added as CdCl2 solution to soil (potted plants), and a high light stress. The highest dose (50 mM) induced a significant oxidative stress, reduced chlorophyll fluorescence parameters related to PSII functioning and increased energy dissipation mechanisms. Elevated Cd contents impaired the electron transport and limited PSII efficiency. OJIP analysis revealed a Cd-induced K- and L-band appearance documenting LHC-PSII limitation. The combination of Cd and high light stress resulted in the photoinhibition effects in PSII, i.e., a decrease in potential and effective yields of PSII.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"63 2","pages":"182-195"},"PeriodicalIF":1.6,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12319939/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144789727","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

Tribute to late Prof. Sakae Katoh (1932-2025): discovery of plastocyanin and his research in photosynthesis. 向已故加藤荣教授（1932-2025）致敬：质体青素的发现及其在光合作用方面的研究。

IF 1.6 4区生物学

Photosynthetica Pub Date : 2025-07-03 eCollection Date: 2025-01-01 DOI: 10.32615/ps.2025.022

K Sonoike

引用次数: 0

Synergistic effects of drought and heat stress on Medicago truncatula: understanding growth response and photosynthetic mechanisms. 干旱和热胁迫对短叶紫花苜蓿的协同效应：了解其生长响应和光合机制。

IF 1.6 4区生物学

Photosynthetica Pub Date : 2025-07-02 eCollection Date: 2025-01-01 DOI: 10.32615/ps.2025.008

N Ressaissi, W Mnafgui, N Maiza, F Zribi, W Zorrig, N Ludidi, M T Sanchez-Ballesta, M Badri

{"title":"Synergistic effects of drought and heat stress on Medicago truncatula: understanding growth response and photosynthetic mechanisms.","authors":"N Ressaissi, W Mnafgui, N Maiza, F Zribi, W Zorrig, N Ludidi, M T Sanchez-Ballesta, M Badri","doi":"10.32615/ps.2025.008","DOIUrl":"10.32615/ps.2025.008","url":null,"abstract":"Drought and heat stress significantly threaten forage crop development and photosynthetic activity in the Mediterranean region. This study investigated the physiological responses and photosynthetic activity of two Medicago truncatula lines TN6.18 and F83005.5 (F83), to single and combined heat and drought stress treatments. Biomass traits, leaf gas exchange, and photosystem activities were evaluated. Our findings indicate a reduction in biomass parameters under heat, drought, and combined stress on both lines, particularly in F83. The stomatal conductance and photosynthetic parameters exhibited differential responses, with F83 reducing its stomatal conductance under drought stress, while TN6.18 was adapted by opening its stomata. Moreover, in TN6.18, combined stress enhanced protection mechanisms in PSI, while F83 showed changes in PSII efficiency. These insights deepen our understanding of plant responses to abiotic stresses and offer strategies for improving tolerance and resilience in changing environmental conditions.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"63 2","pages":"151-161"},"PeriodicalIF":1.6,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12319930/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144789725","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

Increased brassinolide accumulation and increased growth in low-light-grown transgenic tobacco. 低光转基因烟草油菜素内酯积累增加，生长加快。

IF 1.6 4区生物学

Photosynthetica Pub Date : 2025-06-24 eCollection Date: 2025-01-01 DOI: 10.32615/ps.2025.016

R Grebenok, T Ugine, M Galante, N Grebenok, H Iqbal, N Olszewski, X Krull, T Lingenfelter, R Sedano, E Corigliano, A Grebenok

{"title":"Increased brassinolide accumulation and increased growth in low-light-grown transgenic tobacco.","authors":"R Grebenok, T Ugine, M Galante, N Grebenok, H Iqbal, N Olszewski, X Krull, T Lingenfelter, R Sedano, E Corigliano, A Grebenok","doi":"10.32615/ps.2025.016","DOIUrl":"10.32615/ps.2025.016","url":null,"abstract":"Transgenic tobacco, demonstrating bacterial cholesterol oxidase (CO) activity in the chloroplast, grown at PAR ~280 μmol(photon) m-2s-1 (low light), contained thylakoid membranes that include a greater variety of steroids and had reduced contents of sterol and sterol-esters per milligram chlorophyll in comparison to controls. The mature transgenic plants, grown at low light, demonstrate a ~3× larger root dry mass, ~3× larger stem dry mass, ~2× larger leaf dry mass, ~2× increased leaf number, and ~5× increased flower number than controls. Mature transgenic flowering plants, develop to first flower ~2× faster and grow ~30% taller than control flowering plants. The transgenic seedlings contain approximately 2× higher amounts of brassinolide (BR) per g fresh mass than controls. We propose that since the CO enzyme produces increased contents of oxidized steroids in the thylakoid membrane, this encourages enhanced photosynthesis, enhanced BR contents, and increased biomass accumulation.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"63 2","pages":"140-150"},"PeriodicalIF":1.6,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12319932/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144789723","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

Green manure can be an auxiliary factor against dynamic photoinhibition in Dalbergia ecastophyllum (L.) young trees in areas impacted by mining. 绿肥可作为矿区黄檀幼树动态光抑制的辅助因子。

IF 1.6 4区生物学

Photosynthetica Pub Date : 2025-06-09 eCollection Date: 2025-01-01 DOI: 10.32615/ps.2025.015

M M Mendes, I F Ribeiro, V F D Santos, F R Pires, A A Fernandes, L F T D Menezes, R Bonomo, D Cassol, J P R Martins, A R Falqueto

{"title":"Green manure can be an auxiliary factor against dynamic photoinhibition in Dalbergia ecastophyllum (L.) young trees in areas impacted by mining.","authors":"M M Mendes, I F Ribeiro, V F D Santos, F R Pires, A A Fernandes, L F T D Menezes, R Bonomo, D Cassol, J P R Martins, A R Falqueto","doi":"10.32615/ps.2025.015","DOIUrl":"10.32615/ps.2025.015","url":null,"abstract":"This study evaluated the efficiency of green manure (+GM) on PSII efficiency throughout the day in Dalbergia ecastophyllum. The experiment was carried out in a disabled clay extraction deposit, located approximately 30 km south of São Mateus city (Espírito Santo State, Brazil). Chlorophyll (Chl) index, Chl a fluorescence, and plant growth were measured in the summer, after 12 months of planting. +GM improved the photochemical performance of D. ecastophyllum, reducing the occurrence of photoinhibition throughout the day. +GM increased the photochemical quantum yield, the probability of a photon absorbed to move beyond quinone QA -, and the total Chl index, resulting in higher plant height and stem diameter (+11.7 and +2.2%, respectively). The number of active reaction centers per cross-section and the performance index of PSII values were unchanged throughout the day. Full recovery of both K and L-bands occurred at night. In contrast, plants growing with -GM had higher energy losses as heat. In conclusion, these results contribute to improving revegetation techniques, to create better conditions for the planting of native tree species in degraded areas.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"63 2","pages":"129-139"},"PeriodicalIF":1.6,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12319934/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144789722","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

Effect of strobilurin fungicide on the initial growth of common bean plants. 杀菌剂strobilurin对普通豆科植物初期生长的影响。

IF 1.6 4区生物学

Photosynthetica Pub Date : 2025-06-02 eCollection Date: 2025-01-01 DOI: 10.32615/ps.2025.017

A C P Rocha, J F Miranda, L B Das Neves, M M Mendes, A S Amorim, G S Morais, J P R Martins, M B Da Silva, A B P L Gontijo, A R Falqueto

引用次数: 0

Potential mechanisms for the rapid post-drought reversal of ABA-induced stomatal closure by melatonin, 5-aminolevulinic acid, and brassinosteroids. 褪黑激素、5-氨基乙酰丙酸和油菜素内酯在干旱后快速逆转aba诱导的气孔关闭的潜在机制。

IF 1.6 4区生物学

Photosynthetica Pub Date : 2025-05-19 eCollection Date: 2025-01-01 DOI: 10.32615/ps.2025.011

M Waseem, M M Hasan, Y Hazzazi, B M Alharbi, M U Ghani, P Ahmad, M Carriquí

{"title":"Potential mechanisms for the rapid post-drought reversal of ABA-induced stomatal closure by melatonin, 5-aminolevulinic acid, and brassinosteroids.","authors":"M Waseem, M M Hasan, Y Hazzazi, B M Alharbi, M U Ghani, P Ahmad, M Carriquí","doi":"10.32615/ps.2025.011","DOIUrl":"10.32615/ps.2025.011","url":null,"abstract":"The regulation of stomatal movements is crucial for plants to optimize gas exchange and water balance. The plant hormone abscisic acid (ABA) triggers stomatal closure in response to drought, effectively minimizing water loss to prevent hydraulic failure. However, it significantly constrains photosynthesis, restricting plant growth and productivity. Therefore, rapid post-drought stomatal opening is crucial for earlier photosynthetic recovery. This review explores how phytohormones or plant growth regulators reverse ABA-induced stomatal closure. Phytomelatonin, 5-aminolevulinic acid, and brassinosteroids promote stomatal reopening by either ABA degradation or suppressing its biosynthesis through the downregulation of corresponding genes. This results in less ABA-induced H2O2 accumulation in guard cells, which lowers H2O2-triggered Ca2+ levels in guard cells, and promotes the opening of KAT1 (K+ in channels). Insights from this review highlight the potential mechanisms of stomatal reopening for earlier post-drought gas exchange recovery, offering potential avenues to enhance plant productivity under changing environmental conditions.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"63 2","pages":"104-115"},"PeriodicalIF":1.6,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12319943/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144789724","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

Dr. Autar Krishen Mattoo (1943-2024): an outstanding plant biologist with a focus on photosynthesis. 奥塔尔·克里申·马图博士（1943-2024）：杰出的植物生物学家，主要研究光合作用。

IF 1.6 4区生物学

Photosynthetica Pub Date : 2025-04-24 eCollection Date: 2025-01-01 DOI: 10.32615/ps.2025.014

A K Handa, M Edelman, W W Adams, G Govindjee

引用次数: 0