Photosynthetica最新文献_第8页

Evaluation of visible-light wavelengths that reduce or oxidize the plastoquinone pool in green algae with the activated F₀ rise method. 用活化F0上升法评价绿藻中减少或氧化质体醌池的可见光波长。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-11-24 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.049

H Mattila, V Havurinne, T Antal, E Tyystjärvi

{"title":"Evaluation of visible-light wavelengths that reduce or oxidize the plastoquinone pool in green algae with the activated F0 rise method.","authors":"H Mattila, V Havurinne, T Antal, E Tyystjärvi","doi":"10.32615/ps.2022.049","DOIUrl":"10.32615/ps.2022.049","url":null,"abstract":"We recently developed a chlorophyll a fluorescence method (activated F0 rise) for estimating if a light wavelength preferably excites PSI or PSII in plants. Here, the method was tested in green microalgae: Scenedesmus quadricauda, Scenedesmus ecornis, Scenedesmus fuscus, Chlamydomonas reinhardtii, Chlorella sorokiniana, and Ettlia oleoabundans. The Scenedesmus species displayed a plant-like action spectra of F0 rise, suggesting that PSII/PSI absorption ratio is conserved from higher plants to green algae. F0 rise was weak in a strain of C. reinhardtii, C. sorokiniana, and E. oleoabundans. Interestingly, another C. reinhardtii strain exhibited a strong F0 rise. The result indicates that the same illumination can lead to different redox states of the plastoquinone pool in different algae. Flavodiiron activity enhanced the F0 rise, presumably by oxidizing the plastoquinone pool during pre-illumination. The activity of plastid terminal oxidase, in turn, diminished the F0 rise, but to a small degree.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"14 1","pages":"529-538"},"PeriodicalIF":2.1,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558589/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75261458","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

Different light-quality colored films affect growth, photosynthesis, chloroplast ultrastructure, and triterpene acid accumulation in Glechoma longituba plants. 不同光质色膜对青花植株生长、光合作用、叶绿体超微结构和三萜酸积累均有影响。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-11-24 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2022.046

L X Zhang, Q S Chang, Q S Guo, X G Hou, L Liu, Z B Zhu, S D Chen

{"title":"Different light-quality colored films affect growth, photosynthesis, chloroplast ultrastructure, and triterpene acid accumulation in Glechoma longituba plants.","authors":"L X Zhang, Q S Chang, Q S Guo, X G Hou, L Liu, Z B Zhu, S D Chen","doi":"10.32615/ps.2022.046","DOIUrl":"10.32615/ps.2022.046","url":null,"abstract":"To elucidate the adaptive strategies of Glechoma longituba in response to different light-quality colored films, the growth, photosynthesis, chloroplast ultrastructure, and triterpene acid accumulation were analyzed. In this study, four colored films improved electron transport and maintained the function of PSII, and allocated more light energy absorbed for photochemical reactions, thus increasing the photosynthetic capacity and ultimately improving dry mass accumulation. Additionally, blue film (BF) and green film (GF) enhanced photosynthesis by increasing stomatal openness and chlorophyll contents and maintaining chloroplast structural integrity, thereby promoting dry mass and triterpene acid (TA) accumulation of G. longituba. Red film excessively increased starch grains, inhibited photosynthate output and consequently reduced the concentration and yield of ursolic acid (UA). Yellow film decreased stomatal openness and chlorophyll concentrations, which was not conducive to chloroplast development, and also decreased the concentration and yield of UA. In conclusion, the application of BF and GF may represent an effective cultivation practice that can be used to achieve the highest TA yields in plantings of G. longituba.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"79 1","pages":"264-274"},"PeriodicalIF":2.1,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558579/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83768830","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

Evidence of photosynthetic acclimation to self-shading in sugarcane canopies. 甘蔗冠层光合适应自遮阳的证据。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-10-20 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.045

R L Almeida, N M Silveira, M T Miranda, V S Pacheco, L P Cruz, M A Xavier, E C Machado, R V Ribeiro

引用次数: 0

Light intensity affects tolerance of pyrene in Chlorella vulgaris and Scenedesmus acutus. 光照强度影响普通小球藻和尖小球藻对芘的耐受性。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-10-17 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2022.044

R S Tomar, R Atre, D Sharma, P Rai-Kalal, A Jajoo

引用次数: 0

Changes in ultrastructure, photosynthetic abilities, and secondary metabolite due to individual and interactive effects of chromium and ultraviolet-B radiation in Adhatoda vasica. 铬和uv - b辐射对水杨树超微结构、光合能力和次生代谢产物的影响

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-10-03 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2022.042

A Pandey, D Jaiswal, M Agrawal, S B Agrawal

{"title":"Changes in ultrastructure, photosynthetic abilities, and secondary metabolite due to individual and interactive effects of chromium and ultraviolet-B radiation in Adhatoda vasica.","authors":"A Pandey, D Jaiswal, M Agrawal, S B Agrawal","doi":"10.32615/ps.2022.042","DOIUrl":"10.32615/ps.2022.042","url":null,"abstract":"The study was executed to assess individual and interactive effects of elevated ultraviolet-B (eUV-B) radiation and chromium (Cr) on a medicinal plant Adhatoda vasica Nees. The experiment was conducted under field conditions involving control, Cr, eUV-B, and Cr+eUV-B treatments. The results showed that Cr content was the highest in roots as compared to other parts under Cr+eUV-B. Significant reductions in photosynthetic rate, intercellular CO2 concentration, and stomatal conductance were observed under all treatments with maximum under Cr+eUV-B. Chlorophyll (Chl) fluorescence parameters showed variable responses under Cr and Cr+eUV-B. Chl content showed reductions under all treatments whereas Chl a/b ratio and carotenoids showed increment under eUV-B and reductions under Cr and Cr+eUV-B. The ultrastructure of leaves showed changes in chloroplasts under treatments. Vasicine (medicinally important secondary metabolite) increased under treatments. Our study revealed that A. vasica showed variable responses towards individual and interactive stress of Cr and eUV-B.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"2 1","pages":"157-167"},"PeriodicalIF":2.1,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515857/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88028666","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

Effects of abiotic stress on photosystem II proteins. 非生物胁迫对光系统II蛋白的影响。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-10-03 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2022.043

M Landi, L Guidi

引用次数: 0

Effect of different LED-lighting quality conditions on growth and photosynthetic characteristics of saffron plants (Crocus sativus L.). 不同led照明质量条件对藏红花生长和光合特性的影响

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-10-03 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.038

J Zhu, Y C Zhang, L Y Yang, L Zhou

{"title":"Effect of different LED-lighting quality conditions on growth and photosynthetic characteristics of saffron plants (Crocus sativus L.).","authors":"J Zhu, Y C Zhang, L Y Yang, L Zhou","doi":"10.32615/ps.2022.038","DOIUrl":"10.32615/ps.2022.038","url":null,"abstract":"The effects of different light-emitting diode (LED) lights on saffron growth and photosynthetic characteristic were explored. Physiological mechanisms were explained by chlorophyll a fluorescence transient curves (OJIP) and JIP-test parameters. A decrease in the red to blue light ratio resulted in negative effects, particularly for monochromatic blue (B) LED light; saffron seedlings showed reduced chlorophyll accumulation, inhibited leaf elongation, and decreased photosynthetic performance. In the OJIP curve, the higher positive K-band observed for B LED light indicated that oxygen-evolving complex activation significantly decreased. B LED light inhibited the electron transport between primary quinone acceptor and secondary quinone acceptor as well as the existence of reducing plastoquinone centers, and increased energy dissipation of reaction centers. Otherwise, the red to blue light ratio of 2:1 had a positive effect on saffron cultivation, resulting in the longest leaf lengths, highest chlorophyll content, and photosynthetic characteristics. This study provides theoretical guidance for saffron agricultural practices.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"77 1","pages":"497-507"},"PeriodicalIF":2.1,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558569/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80659669","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

Detection of antibiotic and microplastic pollutants in Chrysanthemum coronarium L. based on chlorophyll fluorescence. 基于叶绿素荧光法检测菊花中抗生素和微塑料污染物。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-09-20 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.035

M Y Zhong, K Y Khan, L J Fu, Q Xia, H Tang, H J Qu, S Yuan, J L Tan, Y Guo

{"title":"Detection of antibiotic and microplastic pollutants in Chrysanthemum coronarium L. based on chlorophyll fluorescence.","authors":"M Y Zhong, K Y Khan, L J Fu, Q Xia, H Tang, H J Qu, S Yuan, J L Tan, Y Guo","doi":"10.32615/ps.2022.035","DOIUrl":"10.32615/ps.2022.035","url":null,"abstract":"Large amounts of antibiotics and microplastics are used in daily life and agricultural production, which affects not only plant growth but also potentially the food safety of vegetables and other plant products. Fast detection of the presence of antibiotics and microplastics in leafy vegetables is of great interest to the public. In this work, a method was developed to detect sulfadiazine and polystyrene, commonly used antibiotics and microplastics, in vegetables by measuring and modeling photosystem II chlorophyll a fluorescence (ChlF) emission from leaves. Chrysanthemum coronarium L., a common beverage and medicinal plant, was used to verify the developed method. Scanning electron microscopy, transmission electron microscopy, and liquid chromatograph-mass spectrometer analysis were used to show the presence of the two pollutants in the samples. The developed kinetic model could describe measured ChlF variations with an average relative error of 0.6%. The model parameters estimated for the chlorophyll a fluorescence induction kinetics curve (OJIP) induction can differentiate the two types of stresses while the commonly used ChlF OJIP induction characteristics cannot. This work provides a concept to detect antibiotic pollutants and microplastic pollutants in vegetables based on ChlF.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"42 1","pages":"489-496"},"PeriodicalIF":2.1,"publicationDate":"2022-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558592/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85191750","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

Improvement in the photoprotective capability benefits the productivity of a yellow-green wheat mutant in N-deficient conditions. 光保护能力的提高有利于缺氮条件下黄绿小麦突变体的产量。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-09-20 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.041

X H Zhang, H X Li, G Zhuo, Z Z He, C Y Zhang, Z Shi, C C Li, Y Wang

{"title":"Improvement in the photoprotective capability benefits the productivity of a yellow-green wheat mutant in N-deficient conditions.","authors":"X H Zhang, H X Li, G Zhuo, Z Z He, C Y Zhang, Z Shi, C C Li, Y Wang","doi":"10.32615/ps.2022.041","DOIUrl":"10.32615/ps.2022.041","url":null,"abstract":"Wheat yellow-green mutant Jimai5265yg has a more efficient photosynthetic system and higher productivity than its wild type under N-deficient conditions. To understand the relationship between photosynthetic properties and the grain yield, we conducted a field experiment under different N application levels. Compared to wild type, the Jimai5265yg flag leaves had higher mesophyll conductance, photosynthetic N-use efficiency, and photorespiration in the field without N application. Chlorophyll a fluorescence analysis showed that PSII was more sensitive to photoinhibition due to lower nonphotochemical quenching (NPQ) and higher nonregulated heat dissipation. In N-deficient condition, the PSI acceptor side of Jimai5265yg was less reduced. We proposed that the photoinhibited PSII protected PSI from over-reduction through downregulation of electron transport. PCA analysis also indicated that PSI photoprotection and electron transport regulation were closely associated with grain yield. Our results suggested that the photoprotection mechanism of PSI independent of NPQ was critical for crop productivity.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"60 1","pages":"476-488"},"PeriodicalIF":2.1,"publicationDate":"2022-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558583/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91024604","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

Moderate photoinhibition of PSII and oxidation of P700 contribute to chilling tolerance of tropical tree species in subtropics of China. PSII的适度光抑制和P700的氧化对亚热带热带树种的耐冷性有重要影响。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-09-15 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2022.039

V S J Sunoj, Y Wen, A Jajoo, A W Short, W H Zeng, N I Elsheery, K F Cao

{"title":"Moderate photoinhibition of PSII and oxidation of P700 contribute to chilling tolerance of tropical tree species in subtropics of China.","authors":"V S J Sunoj, Y Wen, A Jajoo, A W Short, W H Zeng, N I Elsheery, K F Cao","doi":"10.32615/ps.2022.039","DOIUrl":"10.32615/ps.2022.039","url":null,"abstract":"In the subtropics, a few tropical tree species are distributed and planted for ornamental and horticultural purposes; however, the photosynthesis of these species can be impaired by chilling. This study aimed to understand how these species respond to chilling. Light-dependent and CO2 assimilation reactions of six tropical tree species from geographically diverse areas, but grown at a lower subtropical site in China, were monitored during a chilling (≤ 10°C). Chilling induced stomatal and nonstomatal effects and moderate photoinhibition of PSII, with severe effect in Ixora chinensis. Woodfordia fruticosa was little affected by chilling, with negligible reduction of photosynthesis and PSII activity, higher cyclic electron flow (CEF), and oxidation state of P700 (P700+). Photoinhibition of PSII thus reduced electron flow to P700, while active CEF reduced oxidative damage of PSI and maintained photosynthesis during chilling. Studied parameters revealed that coupling between light-dependent and CO2 assimilation reactions was enhanced under chilling.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"18 5 1","pages":"177-189"},"PeriodicalIF":2.1,"publicationDate":"2022-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515820/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82819103","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