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
This study evaluated the side-cleft grafting in native species of the genus Piper (Piper aduncum L., Piper hispidum Sw., and Piper tuberculatum Jacq.) with BRS Kottanadan pepper cultivar as rootstocks (Experiment 1). The top-cleft grafting was evaluated in native species Piper arboreum Aubl., P. aduncum, and P. tuberculatum with Balankotta pepper cultivar as graft using black pepper cv. Bragantina (Experiment 2). Black pepper cv. Bragantina autograft was considered as control. The rootstock P. tuberculatum showed initial incompatibility with the cv. Bragantina, with survival of about 34.8% (side) and 62.5% (top) and total inhibition of graft shooting. The side and top graft on P. aduncum resulted in 84.0 and 47.5% of survival, respectively. The JIP-test parameters indicated better photochemical efficiency in the species grafted using the method of side-cleft grafting. Finally, the initial compatibility was associated with greater survival, shooting, and better energy flow through the electron transport chain.
{"title":"Evaluating the effect of grafting methods and rootstocks through the analysis of chlorophyll a fluorescence","authors":"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","doi":"10.32615/ps.2023.029","DOIUrl":"https://doi.org/10.32615/ps.2023.029","url":null,"abstract":"This study evaluated the side-cleft grafting in native species of the genus Piper (Piper aduncum L., Piper hispidum Sw., and Piper tuberculatum Jacq.) with BRS Kottanadan pepper cultivar as rootstocks (Experiment 1). The top-cleft grafting was evaluated in native species Piper arboreum Aubl., P. aduncum, and P. tuberculatum with Balankotta pepper cultivar as graft using black pepper cv. Bragantina (Experiment 2). Black pepper cv. Bragantina autograft was considered as control. The rootstock P. tuberculatum showed initial incompatibility with the cv. Bragantina, with survival of about 34.8% (side) and 62.5% (top) and total inhibition of graft shooting. The side and top graft on P. aduncum resulted in 84.0 and 47.5% of survival, respectively. The JIP-test parameters indicated better photochemical efficiency in the species grafted using the method of side-cleft grafting. Finally, the initial compatibility was associated with greater survival, shooting, and better energy flow through the electron transport chain.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"72 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":"134948215","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}
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
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.
{"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 <i>Theobroma cacao</i> 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}
M. LHOTSKÁ, V. ZEMANOVÁ, D. PAVLÍKOVÁ, F. HNILIČKA
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.
在温室水培莴苣(Lactuca sativa var. capitata)中，观察了有毒元素多重污染对生菜光合反应的影响。由于水培条件，实验只关注选定的有毒元素的综合作用，而不受土壤的影响。预栽培(六真叶期)植株在对照和污染水培中生长14 d。污染溶液中有毒元素(As、Cd、Pb和Zn)的混合比例与人为污染的捷克共和国Litavka河地区土壤的水溶性组分相对应。通过测定有毒元素含量、干生物量和气体交换参数来测量植物的反应。莴苣有毒元素的积累主要集中在根部，向叶片的转移较少。有毒元素的吸收损害了光合作用，导致净光合速率、蒸腾速率和气孔导度下降。因此，植物的总干生物量减少。结果表明，在水培条件下，污染对植物的适应性有不可逆的影响，因为根与污染溶液直接接触。
{"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}
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
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.
{"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. <i>Piper aduncum</i> and <i>Piper tuberculatum</i> 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 <i>P. tuberculatum</i>, 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}
S. KRUMOVA, A. PETROVA, D. KOLEVA, S. PETROVA, S. STOICHEV, N. PETROVA, T. TSONEV, P. PETROV, V. VELIKOVA
Natural and synthetic polymers are widely explored for improving seed germination and plant resistance to environmental constraints. Here, for the first time, we explore stabilized nanomicelles composed of the biocompatible triblock co-polymer Pluronic P85 (SPM) as a priming agent for Pisum sativum (var. RAN-1) seeds. We tested a wide concentration range of 0.04-30 g(SPM) L-1. Applying several structural and functional methods we revealed that the utilized nanomicelles can positively affect root length, without any negative effects on leaf anatomy and photosynthetic efficiency at 0.2 g L-1, while strong negative effects were recorded for 10 and 30 g(SPM) L-1 concerning root length, leaf histology, and photoprotection capability. Our data strongly suggest that SPM can safely be utilized for seed priming at specific concentrations and are suitable objects for further loading with plant growth regulators.
天然和合成聚合物被广泛用于提高种子萌发和植物对环境约束的抵抗力。在这里，我们首次探索了由生物相容性三段共聚物Pluronic P85 (SPM)组成的稳定纳米胶束作为Pisum sativum (var. RAN-1)种子的引发剂。我们测试了0.04-30 g(SPM) L-1的宽浓度范围。通过多种结构和功能分析发现，在0.2 g L-1条件下，利用的纳米胶束对根长有积极影响，对叶片解剖和光合效率没有负面影响，而在10和30 g(SPM) L-1条件下，对根长、叶片组织学和光保护能力有明显的负面影响。我们的数据强烈表明，SPM可以安全地用于特定浓度的种子启动，并且是进一步加载植物生长调节剂的合适对象。
{"title":"Priming of Pisum sativum seeds with stabilized Pluronic P85 nanomicelles: effects on seedling development and photosynthetic function","authors":"S. KRUMOVA, A. PETROVA, D. KOLEVA, S. PETROVA, S. STOICHEV, N. PETROVA, T. TSONEV, P. PETROV, V. VELIKOVA","doi":"10.32615/ps.2023.033","DOIUrl":"https://doi.org/10.32615/ps.2023.033","url":null,"abstract":"Natural and synthetic polymers are widely explored for improving seed germination and plant resistance to environmental constraints. Here, for the first time, we explore stabilized nanomicelles composed of the biocompatible triblock co-polymer <i>Pluronic P85</i> (SPM) as a priming agent for <i>Pisum sativum</i> (var. RAN-1) seeds. We tested a wide concentration range of 0.04-30 g(SPM) L<sup>-1</sup>. Applying several structural and functional methods we revealed that the utilized nanomicelles can positively affect root length, without any negative effects on leaf anatomy and photosynthetic efficiency at 0.2 g L<sup>-1</sup>, while strong negative effects were recorded for 10 and 30 g(SPM) L<sup>-1</sup> concerning root length, leaf histology, and photoprotection capability. Our data strongly suggest that SPM can safely be utilized for seed priming at specific concentrations and are suitable objects for further loading with plant growth regulators.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135816580","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}
{"title":"Influence of reduced amounts of sulfoquinovosyl diacylglycerol on the thylakoid membranes of the diatom Thalassiosira pseudonana","authors":"T. Liebisch, M. Başoglu, S. Jäger, C. Büchel","doi":"10.32615/ps.2023.032","DOIUrl":"https://doi.org/10.32615/ps.2023.032","url":null,"abstract":"","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"76 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75411453","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}
E. Széles, S. Kuntam, A. Vidal-Meireles, V. Nagy, K. Nagy, Á. Ábrahám, L. Kovács, S. Tóth
{"title":"Single-cell microfluidics in combination with chlorophyll a fluorescence measurements to assess the lifetime of the Chlamydomonas PSBO protein","authors":"E. Széles, S. Kuntam, A. Vidal-Meireles, V. Nagy, K. Nagy, Á. Ábrahám, L. Kovács, S. Tóth","doi":"10.32615/ps.2023.028","DOIUrl":"https://doi.org/10.32615/ps.2023.028","url":null,"abstract":"","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"32 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76537549","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}
{"title":"LHCII - a protein like a 'Swiss Army knife' with many mechanisms and functions","authors":"E. Janik-Zabrotowicz, W. Gruszecki","doi":"10.32615/ps.2023.025","DOIUrl":"https://doi.org/10.32615/ps.2023.025","url":null,"abstract":"","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"92 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90871997","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}
B. Adhikari, O. J. Olorunwa, S. Brazel, T. C. Barickman, R. Bheemanahalli
{"title":"Impact of salt stress on physiology, leaf mass, and nutrient accumulation in romaine lettuce","authors":"B. Adhikari, O. J. Olorunwa, S. Brazel, T. C. Barickman, R. Bheemanahalli","doi":"10.32615/ps.2023.027","DOIUrl":"https://doi.org/10.32615/ps.2023.027","url":null,"abstract":"","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"21 4","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72409751","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}
H. Húdoková, P. Fleischer Jr., M. Ježík, J. Marešová, E. Pšidová, M. Mukarram, Ľ. Ditmarová, A. SLIACKA-KONÔPKOVÁ, G. Jamnická
{"title":"Can seedlings of Norway spruce (Picea abies L. H. Karst.) populations withstand changed climate conditions?","authors":"H. Húdoková, P. Fleischer Jr., M. Ježík, J. Marešová, E. Pšidová, M. Mukarram, Ľ. Ditmarová, A. SLIACKA-KONÔPKOVÁ, G. Jamnická","doi":"10.32615/ps.2023.026","DOIUrl":"https://doi.org/10.32615/ps.2023.026","url":null,"abstract":"","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"101 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72422544","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}
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