Photosynthetica最新文献_第7页

Adaptive photosynthetic strategies of the invasive plant Sphagneticola trilobata and its hybrid to a low-light environment. 入侵植物三叶藻及其杂交种对弱光环境的适应性光合策略

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-12-20 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.051

W Q Ke, Y R Pan, L H Chen, J D Huang, J J Zhang, X Y Long, M L Cai, C L Peng

{"title":"Adaptive photosynthetic strategies of the invasive plant Sphagneticola trilobata and its hybrid to a low-light environment.","authors":"W Q Ke, Y R Pan, L H Chen, J D Huang, J J Zhang, X Y Long, M L Cai, C L Peng","doi":"10.32615/ps.2022.051","DOIUrl":"10.32615/ps.2022.051","url":null,"abstract":"In stressful environments, invasive plants acclimate more efficiently than native plants and hybridization mainly contributes to this process. We examined changes in the morphological characteristics, photosynthetic characteristics, and antioxidant capacity of Sphagneticola trilobata and its hybrids in a low-light environment to explore their invasiveness, with Sphagneticola calendulacea serving as the control. The morphological plasticity of S. trilobata was not dominant, the maximal photochemical efficiency of PSII, actual quantum yield of PSII, and electron transport rate of PSII increased and nonphotochemical quenching decreased, while S. calendulacea and the hybrid produced opposite results. S. trilobata showed fewer spots stained for reactive oxygen species in tissues, with an increase in superoxide dismutase activity. Although S. trilobata is a heliophilous plant, we found that the shade tolerance of S. trilobata and the hybrid were stronger than that of S. calendulacea, which may be one important mechanism of invasion.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"243 1","pages":"549-561"},"PeriodicalIF":2.1,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558596/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91216525","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

Photosynthetic responses of Eulophia dentata, Bletilla formosana, and Saccharum spontaneum under various photosynthetic photon flux density conditions. 齿藻、台湾白芨和自发糖在不同光合光子通量密度条件下的光合响应

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-12-16 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.050

Y-H Lai, K-H Lin, C-P Liu, T-S Liao, M-Y Huang, C-W Wang, C-I Chen

{"title":"Photosynthetic responses of Eulophia dentata, Bletilla formosana, and Saccharum spontaneum under various photosynthetic photon flux density conditions.","authors":"Y-H Lai, K-H Lin, C-P Liu, T-S Liao, M-Y Huang, C-W Wang, C-I Chen","doi":"10.32615/ps.2022.050","DOIUrl":"10.32615/ps.2022.050","url":null,"abstract":"This study aimed to determine the photosynthetic performance and differences in chlorophyll fluorescence (ChlF) parameters between Eulophia dentata and its companion species Bletilla formosana and Saccharum spontaneum when subjected to different photosynthetic photon flux density (PPFDs). Leaf surfaces were then illuminated with 50, 100 (low PPFDs), 300, 500, 800 (moderate PPFDs); 1,000; 1,500; and 2,000 (high PPFDs) μmol m-2·s-1, and the ChlF parameters were measured during the whole process. Increasing nonphotochemical quenching of ChlF and decreasing potential quantum efficiency of PSII, actual quantum efficiency of PSII, and quantum efficiency ratio of PSII in dark recovery from 0-60 min were observed in all leaves. A significant and negative relationship was detected between energy-dependent quenching (qE) and photoinhibition percent in three species under specific PPFD conditions, whereas a significant and positive relationship was detected between photoinhibitory quenching (qI) and photoinhibition percent. The qE and qI can be easily measured in the field and provide useful ecological indexes for E. dentata species restoration, habitat creation, and monitoring.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"40 1","pages":"539-548"},"PeriodicalIF":2.1,"publicationDate":"2022-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558585/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85083842","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

Changes in the photosynthetic performance, the activity of enzymes of nitrogen metabolism, and proline content in the leaves of wheat plants after exposure to low CO₂ concentration. 低CO2处理后小麦叶片光合性能、氮代谢酶活性及脯氨酸含量的变化

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-12-01 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2022.047

A Ivanov, A Kosobryukhov, V Kreslavski, S I Allakhverdiev

{"title":"Changes in the photosynthetic performance, the activity of enzymes of nitrogen metabolism, and proline content in the leaves of wheat plants after exposure to low CO2 concentration.","authors":"A Ivanov, A Kosobryukhov, V Kreslavski, S I Allakhverdiev","doi":"10.32615/ps.2022.047","DOIUrl":"10.32615/ps.2022.047","url":null,"abstract":"The changes in photosynthetic activity, as well as the activity of nitrogen-metabolism enzymes, the intensity of lipid peroxidation, and proline content were studied in Triticum aestivum L. plants after their incubation at a low CO2 concentration in a sealed chamber for 10 d. CO2 deficiency (-CO2) compared to normal CO2 concentration (control) led to a decrease in the rate of O2 gas exchange at the plateau of the light curve and quantum yield of photosynthesis. The maximum and effective quantum photochemical yields also decreased. CO2 deficiency reduced the activity of nitrate reductase, but increased the activities of nitrite reductase, glutamine synthetase, and glutamate dehydrogenase, and promoted proline accumulation. It is assumed that with a lack of CO2, an excess of nitrogen-containing compounds occurs, which must be removed from metabolic processes. Also, we suggest the partial storage of nitrogen in the form of nitrogen-containing compounds such as proline.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"12 1","pages":"190-202"},"PeriodicalIF":2.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515816/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88407908","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

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

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风格的影响

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