Photosynthetica最新文献_第3页

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

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 (Gossypium hirsutum) and pima (G. barbadense) cotton were analyzed during a drought cycle. While both species decreased net CO2 assimilation rate (PN) to a similar extent under drought, in pima cotton rewatering rapidly restored PN, the stomatal conductance (gs), the maximum carboxylation rate (Vcmax), and the maximum electron transport rate above the control level. Meanwhile, the response of leaf intrinsic WUE (WUEi) to drought and recovery was different between the two cotton species, which was mainly co-regulated by Vcmax and gs. In conclusion, pima and upland cotton exhibit different response patterns of PN and WUEi 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

引用次数: 0

Growth light substantially affects both primary and secondary metabolic processes in Catharanthus roseus plants 生长光在很大程度上影响了长春花植物的初级和次级代谢过程

4区生物学

Photosynthetica Pub Date : 2023-10-10 DOI: 10.32615/ps.2023.037

F. GHOLIZADEH, É. DARKÓ, K. BENCZÚR, K.Á. HAMOW, M. DERNOVICS, K. NAGY, T. JANDA, M.R. RADY, G. GOHARI, M. PÁL, V.N. LE, G. SZALAI

{"title":"Growth light substantially affects both primary and secondary metabolic processes in Catharanthus roseus plants","authors":"F. GHOLIZADEH, É. DARKÓ, K. BENCZÚR, K.Á. HAMOW, M. DERNOVICS, K. NAGY, T. JANDA, M.R. RADY, G. GOHARI, M. PÁL, V.N. LE, G. SZALAI","doi":"10.32615/ps.2023.037","DOIUrl":"https://doi.org/10.32615/ps.2023.037","url":null,"abstract":"Common periwinkle (Catharanthus roseus L.) is an important medicinal plant used by the pharmaceutical industry. The present work aimed to determine the effect of low light intensity on the primary and secondary metabolic processes, using various photosynthesis and targeted and untargeted analytical techniques. Growth light had only limited effects on the photosynthetic electron transport processes, although membrane stability seemed slightly higher in plants growing under higher light conditions. The reduced growth light caused a reduction in certain primary metabolites, including amino acids and sugars, and it also reduced the contents of most of the phenolic compounds investigated in the present experiments. Interestingly, the differences in the growth light caused a much less pronounced difference in the alkaloid contents than that found in the flavonoid contents. However, besides the growth light, genotypic differences, most evident in flower colour, also affected some metabolic processes, including primary and secondary processes.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136296283","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

The impact of physiologically relevant temperatures on physical properties of thylakoid membranes: a molecular dynamics study 生理相关温度对类囊体膜物理特性的影响:分子动力学研究

4区生物学

Photosynthetica Pub Date : 2023-10-10 DOI: 10.32615/ps.2023.035

B. FEHÉR, I.K. VOETS, G. NAGY

{"title":"The impact of physiologically relevant temperatures on physical properties of thylakoid membranes: a molecular dynamics study","authors":"B. FEHÉR, I.K. VOETS, G. NAGY","doi":"10.32615/ps.2023.035","DOIUrl":"https://doi.org/10.32615/ps.2023.035","url":null,"abstract":"Thylakoid membranes are energy-converting membranes with a unique lipid composition. Though the membranes are primarily composed of proteins, their photosynthetic function is strongly influenced by the lipid constituents. Here we characterize, with molecular dynamics (MD) simulations, lipid bilayers with compositions representative of plant thylakoid membranes. We determine, in a wide range of temperatures, the physical parameters of the model membranes which are relevant for the photosynthetic function. We found a marked impact of temperature on membrane permeability due to a combination of increased compressibility and curvature of the membrane at elevated temperatures. With increasing temperatures, we observed increasingly smeared transmembrane density profiles of the membrane forming lipid headgroups predicting increased membrane flexibility. The diffusion coefficient of the lipids increased with temperature without apparent specificity for lipid species. Instead of a comprehensive experimental dataset in the relevant temperature range, we quantitatively compared and validated our MD results with MD simulations on a dipalmitoylphosphatidylcholine model system.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136295774","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

Evaluating the effect of grafting methods and rootstocks through the analysis of chlorophyll a fluorescence 通过叶绿素a荧光分析评价嫁接方法和砧木的效果

4区生物学

Photosynthetica Pub Date : 2023-10-05 DOI: 10.32615/ps.2023.029

J. CRASQUE, B. CERRI NETO, M.L.P.B. PINTO, T.R. FERREIRA, A.R. FALQUETO, L.O. ARANTES, J.A. MACHADO FILHO, C.A.S. SOUZA, E.R. SCHMILDT, S. DOUSSEAU-ARANTES

引用次数: 0

Morphophysiological responses of Theobroma cacao L. rootstocks to flooding and post-flooding conditions 可可砧木对水淹和水后胁迫的形态生理响应

4区生物学

Photosynthetica Pub Date : 2023-10-05 DOI: 10.32615/ps.2023.031

M.L.P.B. PINTO, J. CRASQUE, B. CERRI NETO, T.R. FERREIRA, C.A.S. SOUZA, A.R. FALQUETO, T.C. DE SOUZA, J.A. MACHADO FILHO, L.O. ARANTES, S. DOUSSEAU-ARANTES

{"title":"Morphophysiological responses of Theobroma cacao L. rootstocks to flooding and post-flooding conditions","authors":"M.L.P.B. PINTO, J. CRASQUE, B. CERRI NETO, T.R. FERREIRA, C.A.S. SOUZA, A.R. FALQUETO, T.C. DE SOUZA, J.A. MACHADO FILHO, L.O. ARANTES, S. DOUSSEAU-ARANTES","doi":"10.32615/ps.2023.031","DOIUrl":"https://doi.org/10.32615/ps.2023.031","url":null,"abstract":"This study investigates how cocoa rootstocks respond to flooding and post-flooding conditions, offering insights for cocoa plantation sustainability in flood-prone areas due to climate change. We studied Theobroma cacao L. rootstocks for 60 d of flooding and 30 d post-flooding, grafting PS-1319 scions onto five rootstocks (TSH-1188, Cepec-2002, ParĂĄ, Esfip-02, SJ-02). Photochemical performance remained stable across rootstocks, while flooding progressively reduced electron transport efficiency. Photochemical damage emerged after 7 d, worsening occurred at 19 d. Although post-flooding efficiency improved, recovery time was insufficient for full restoration. Stem diameter increased less in Esfip-02. TSH-1188 had the highest stem dry mass during flooding and the most root and total dry mass during post-flooding. SJ-02 had the lowest stem dry mass and post-flooding total dry mass. Principal component analysis revealed stem and root development as a key for recovery. SJ-02 and Esfip-02 showed lower flooding tolerance and recovery, while TSH-1188 and ParĂĄ exhibited higher resilience.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"2010 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134947899","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

Changes in the photosynthetic response of lettuce exposed to toxic element multicontamination under hydroponic conditions 水培条件下有毒元素多重污染生菜光合响应的变化

4区生物学

Photosynthetica Pub Date : 2023-10-05 DOI: 10.32615/ps.2023.034

M. LHOTSKÁ, V. ZEMANOVÁ, D. PAVLÍKOVÁ, F. HNILIČKA

{"title":"Changes in the photosynthetic response of lettuce exposed to toxic element multicontamination under hydroponic conditions","authors":"M. LHOTSKÁ, V. ZEMANOVÁ, D. PAVLÍKOVÁ, F. HNILIČKA","doi":"10.32615/ps.2023.034","DOIUrl":"https://doi.org/10.32615/ps.2023.034","url":null,"abstract":"The effect of toxic element multicontamination on photosynthetic responses was observed in a greenhouse hydroponic culture of lettuce plants (Lactuca sativa var. capitata). The experiment focused only on the combined effect of selected toxic elements without the influence of soil, due to the hydroponic conditions. Pre-cultivated (six-true-leaf stage) plants were grown in control and contaminated hydroponic culture for 14 d. The mix of toxic elements (As, Cd, Pb, and Zn) in the contaminated solution corresponded to the water-soluble fraction of soil from the anthropogenically contaminated Litavka River area, Czech Republic. The plant response was measured by determining the toxic element contents, dry biomass, and gas-exchange parameters. Lettuce accumulated toxic elements predominantly in the roots, with low translocation to the leaves. The uptake of toxic elements harmed photosynthesis and caused a decrease in net photosynthetic rate, transpiration rate, and stomatal conductance. Consequently, the whole dry biomass of the plants decreased. The results show that contamination in hydroponic conditions had an irreversible effect on plant fitness due to direct contact between the roots and contaminated solutions.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134947440","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

Responses of wild Piper species to drought and rehydration cycles considering stomatal closure as a marker of the alarm phase 考虑气孔关闭作为警报期标志的野生胡椒物种对干旱和补水循环的响应

4区生物学

Photosynthetica Pub Date : 2023-10-05 DOI: 10.32615/ps.2023.030

B. CERRI NETO, F.R.N. SILVA, T.R. FERREIRA, J. CRASQUE, L.O. ARANTES, J.A. MACHADO FILHO, T.C. DE SOUZA, A.R. FALQUETO, S. DOUSSEAU-ARANTES

{"title":"Responses of wild Piper species to drought and rehydration cycles considering stomatal closure as a marker of the alarm phase","authors":"B. CERRI NETO, F.R.N. SILVA, T.R. FERREIRA, J. CRASQUE, L.O. ARANTES, J.A. MACHADO FILHO, T.C. DE SOUZA, A.R. FALQUETO, S. DOUSSEAU-ARANTES","doi":"10.32615/ps.2023.030","DOIUrl":"https://doi.org/10.32615/ps.2023.030","url":null,"abstract":"Studies that simulate recurrent drought events with subsequent episodes of rehydration better reflect natural conditions and allow visualization of differential acclimatization responses resulting from memory and tolerance mechanisms. Piper aduncum and Piper tuberculatum were grown in a greenhouse and were subjected to three successive cycles of drought and subsequent rehydration. After suspending irrigation, gas exchanges were measured daily with IRGA. When stomatal conductances close to zero were obtained, the plants were rehydrated and kept irrigated. In P. tuberculatum, stomatal conductance was always higher after periods of rehydration compared to the period before the drought, while the transpiration rate was lower only during the drought. The damage to the photosynthetic apparatus was caused by the influence of the interception of the flow of electrons in the transport chain. We came to the conclusion that the dehydrated plants showed an alert signal, which triggered response mechanisms to prevent or deal with the water stress situation.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134948062","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

Priming of Pisum sativum seeds with stabilized Pluronic P85 nanomicelles: effects on seedling development and photosynthetic function 稳定Pluronic P85纳米胶束对豌豆种子发育和光合功能的影响

4区生物学

Photosynthetica Pub Date : 2023-09-25 DOI: 10.32615/ps.2023.033

S. KRUMOVA, A. PETROVA, D. KOLEVA, S. PETROVA, S. STOICHEV, N. PETROVA, T. TSONEV, P. PETROV, V. VELIKOVA

引用次数: 0