Photosynthetica最新文献_第6页

Effect of UV exclusion and AMF inoculation on photosynthetic parameters of Glycine max. 抗紫外和接种AMF对甘氨酸光合参数的影响。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2023-05-05 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2023.014

P Laad, P Patel, K N Guruprasad, M P Sharma, S Kataria, M Brestic

{"title":"Effect of UV exclusion and AMF inoculation on photosynthetic parameters of Glycine max.","authors":"P Laad, P Patel, K N Guruprasad, M P Sharma, S Kataria, M Brestic","doi":"10.32615/ps.2023.014","DOIUrl":"10.32615/ps.2023.014","url":null,"abstract":"The study aims to understand the effect of UV exclusion and arbuscular mycorrhizal fungi (AMF) inoculation on the photosynthetic parameters of soybean. The study was conducted in nursery bags and plants were grown under iron mesh covered with UV cut-off filters. The plants grown under the exclusion of UV with AMF inoculation (I) showed higher photosynthetic pigments, carbonic anhydrase activity, reduced internal CO2 concentration, enhanced transpiration rate, and stomatal conductance as well as improved photosynthetic rate over uninoculated plants. Moreover, -UVB+I and -UVAB+I plants exhibited an increased performance index, the activity of the water-splitting complex on the donor side of PSII, and the concentration of active PSII reaction centers per excited cross-section. Overall, UV-excluded and AMF-inoculated plants showed the highest quantum yield of PSII and rate of photosynthesis. Our study will pave the way for future investigation to identify the possible role of UV exclusion and AMF in improving the photosynthetic performance for better yield of soybean.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"11 1","pages":"236-243"},"PeriodicalIF":2.1,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515856/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90757068","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

Variation in leaf mesophyll anatomy of fern species imposes significant effects on leaf gas exchange, light capture, and leaf hydraulic conductance. 蕨类植物叶肉解剖结构的变化对叶片气体交换、光捕获和叶片水力传导有显著影响。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2023-05-04 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2023.017

S Fujii, K Nishida, T K Akitsu, A Kume, Y T Hanba

{"title":"Variation in leaf mesophyll anatomy of fern species imposes significant effects on leaf gas exchange, light capture, and leaf hydraulic conductance.","authors":"S Fujii, K Nishida, T K Akitsu, A Kume, Y T Hanba","doi":"10.32615/ps.2023.017","DOIUrl":"10.32615/ps.2023.017","url":null,"abstract":"The mesophyll anatomical traits are essential factors for efficient light capture, CO2 diffusion, and hydraulics in leaves. At the same time, leaf hydraulics are governed by the xylem anatomical traits. Thus, simultaneous analyses of the mesophyll and xylem anatomy will clarify the links among light capture, CO2 capture, and water use. However, such simultaneous analyses have been scarcely performed, particularly on non-seed plants. Using seven fern species, we first showed that fern species with a large mesophyll thickness had a high photosynthetic rate related to high light capture, high drought tolerance, and low leaf hydraulic conductance. The chloroplast surface area (Sc) per mesophyll thickness significantly decreased with an increase in mesophyll thickness, which may increase light diffusion and absorption efficiency in each chloroplast. The photosynthetic rate per Sc was almost constant with mesophyll thickness, which suggests that ferns enhance their light capture ability via the regulation of chloroplast density.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"19 1","pages":"225-235"},"PeriodicalIF":2.1,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515861/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82062753","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

Morphological and physiological responses of two Osmanthus fragrans cultivars to salt stress. 两种桂花品种对盐胁迫的形态生理响应。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2023-04-11 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2023.012

C Y Guo, C J Meng, M Yue

{"title":"Morphological and physiological responses of two Osmanthus fragrans cultivars to salt stress.","authors":"C Y Guo, C J Meng, M Yue","doi":"10.32615/ps.2023.012","DOIUrl":"10.32615/ps.2023.012","url":null,"abstract":"We examined the morphological and physiological responses of Osmanthus fragrans 'Yingui' (Yin) and O. fragrans 'Jingui' (Jin) to different NaCl concentrations. NaCl concentrations significantly affected plant height and leaf mass per area. Total biomass decreased by 22.8-41.8% under moderate and high NaCl which inhibited O. fragrans growth. The ratio of root to shoot biomass in Yin was 44.3% higher than that in Jin at high NaCl concentrations which suggested that Yin possesses conservative resource acquisition strategies to resist salt stress. Compared to Yin, Jin showed higher net photosynthesis, stomatal conductance, and intercellular CO2 concentration under high NaCl treatment. Jin exhibited also relatively higher proline, soluble sugar, K+ content, and K+/Na+ under the treatments implying that acquisitive resource acquisition may be the main strategy for salt resistance in Jin. Our results demonstrated that Yin and Jin could be cultivated in saline land in a short time and the two cultivars respond to salinity by different morphological and physiological mechanisms.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"38 1","pages":"124-134"},"PeriodicalIF":2.1,"publicationDate":"2023-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515812/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91331237","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 physiological responses of critically endangered species Ardisia gigantifolia Stapf (Primulaceae) to different light intensities. 报春花科极危植物大叶蒿（Ardisia gigantifolia Stapf）对不同光强的生理响应

IF 2.1 4区生物学

Photosynthetica Pub Date : 2023-04-11 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2023.011

R Liu, X E Ning, D M Li, L Chen, Z L Ning

{"title":"The physiological responses of critically endangered species Ardisia gigantifolia Stapf (Primulaceae) to different light intensities.","authors":"R Liu, X E Ning, D M Li, L Chen, Z L Ning","doi":"10.32615/ps.2023.011","DOIUrl":"10.32615/ps.2023.011","url":null,"abstract":"To investigate the light intensity suitable for the growth of Ardisia gigantifolia Stapf, morphology, photosynthetic parameters, and indicators of oxidative stress were analyzed under different light intensities. Compared to high-irradiance treatment, medium and low-irradiance treatments promoted plant growth and restricted transpiration. Compared to medium irradiance, plants under high and low irradiance exhibited significantly lower maximal photochemical efficiency, potential photochemical efficiency, and electron transport rate, but significantly higher malondialdehyde content. This indicated that both excessive light and severe shading inhibited photosynthetic activity and induced oxidative stress, which resulted in a significant decrease in net photosynthetic rate. A. gigantifolia can adapt to different light intensities, improving light harvesting and utilizing capacity under low irradiance by increasing Chl (a+b) content and reducing Chl a/b ratio, and adapting to high irradiance by enhancing heat dissipation and activity of peroxidase. A. gigantifolia showed the best performance in growth and photosynthesis under medium irradiance treatment.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"20 1","pages":"115-123"},"PeriodicalIF":2.1,"publicationDate":"2023-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515815/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79904703","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 life story of Albert W. Frenkel (1919-2015): a pioneer in photosynthesis research. Albert W. Frenkel(1919-2015)：光合作用研究的先驱。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2023-04-04 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2023.015

G Govindjee, S Frenkel

引用次数: 0

Downregulated expression of TaDeg7 inhibits photosynthetic activity in bread wheat (Triticum aestivum L.). TaDeg7表达下调可抑制面包小麦的光合活性。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2023-03-30 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2023.008

F F Liu, G P Li, H W Li

{"title":"Downregulated expression of TaDeg7 inhibits photosynthetic activity in bread wheat (Triticum aestivum L.).","authors":"F F Liu, G P Li, H W Li","doi":"10.32615/ps.2023.008","DOIUrl":"10.32615/ps.2023.008","url":null,"abstract":"Deg proteases play critical roles in photoprotection and PSII-repair circle, which remains elusive in cereal crops including wheat. Here, a Deg7-encoding gene TaDeg7 was silenced in wheat via a Barley stripe mosaic virus-induced gene-silencing system (BSMV-VIGS). When the expression level of TaDeg7 was downregulated, the photosynthetic activity including CO2 assimilation rate, actual photochemical efficiency of PSII, and electron transport rate declined while the nonphotochemical quenching increased significantly. When grown in high light, the BSMV:TaDeg7 plants accumulated more soluble sugar, malondialdehyde, and superoxide anion but had lower superoxide dismutase activity and less ascorbic acid. Additionally, the expression levels of TaPsbA and TarbcS were repressed in the BSMV:TaDeg7 plants in high light. The BSMV:TaDeg7 plants also were more sensitive to high-light stress. Collectively, it appeared that TaDeg7 may be a potential target for wheat radiation-use efficiency improvement against high light stress.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"29 1","pages":"97-107"},"PeriodicalIF":2.1,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515814/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86876621","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

Impact of additional green light and deficit in cryptochrome 1 on photosynthetic activity and pro-/antioxidant balance in Arabidopsis thaliana. 额外绿光和隐色素1缺失对拟南芥光合活性和促抗氧化平衡的影响

IF 2.1 4区生物学

Photosynthetica Pub Date : 2023-03-24 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2023.009

V Kreslavski, A Khudyakova, A Kosobryukhov, P Pashkovskiy, M Vereshchagin, T Balakhnina, H F Alharby, S I Allakhverdiev

{"title":"Impact of additional green light and deficit in cryptochrome 1 on photosynthetic activity and pro-/antioxidant balance in Arabidopsis thaliana.","authors":"V Kreslavski, A Khudyakova, A Kosobryukhov, P Pashkovskiy, M Vereshchagin, T Balakhnina, H F Alharby, S I Allakhverdiev","doi":"10.32615/ps.2023.009","DOIUrl":"10.32615/ps.2023.009","url":null,"abstract":"The light spectral composition acting through a set of photoreceptors, such as cryptochromes and phytochromes, plays an important role in maintaining sustainable photosynthesis. An impact of cryptochrome 1 deficiency and additions of green light (GL) against the background of red (RL) and blue (BL) (different ratios of RL:BL:GL) on the activity of the photosynthetic apparatus, the content of photosynthetic pigments, pro-/antioxidant balance, and expression of some genes in the leaves of 23-d-old Arabidopsis thaliana hy4 mutant plants was studied. The deficiency of cryptochrome 1 at RL/BL ratio of 4:1 led to a decrease in the rate of photosynthesis, photosystem II activity, and activity of ascorbate peroxidase and total peroxidase but to an increase in the content of products reacting with thiobarbituric acid. However, in the presence of additional GL, this difference for photosynthetic parameters either decreased or was absent, likely due to a GL-induced decrease in the content of active cryptochrome.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"42 1","pages":"215-224"},"PeriodicalIF":2.1,"publicationDate":"2023-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515821/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88389217","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

Professor Charles Percival Whittingham (1922-2011). 查尔斯·惠廷汉姆教授（1922-2011）。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2023-03-15 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2023.010

C H Foyer, A J Keys, M A J Parry, G Govindjee

引用次数: 0

Photosynthetic machinery under salinity stress: Trepidations and adaptive mechanisms. 盐度胁迫下的光合机制：恐惧和适应机制。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2023-03-14 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2023.002

T V Vineeth, G K Krishna, P H Pandesha, L Sathee, S Thomas, D James, K T Ravikiran, S Taria, C John, N M Vinaykumar, B M Lokeshkumar, H S Jat, J Bose, D Camus, S Rathor, S L Krishnamurthy, P C Sharma

{"title":"Photosynthetic machinery under salinity stress: Trepidations and adaptive mechanisms.","authors":"T V Vineeth, G K Krishna, P H Pandesha, L Sathee, S Thomas, D James, K T Ravikiran, S Taria, C John, N M Vinaykumar, B M Lokeshkumar, H S Jat, J Bose, D Camus, S Rathor, S L Krishnamurthy, P C Sharma","doi":"10.32615/ps.2023.002","DOIUrl":"10.32615/ps.2023.002","url":null,"abstract":"Chloroplasts and photosynthesis are the physiologically fateful arenas of salinity stress. Morphological and anatomical alterations in the leaf tissue, ultrastructural changes in the chloroplast, compromise in the integrity of the three-layered chloroplast membrane system, and defects in the light and dark reactions during the osmotic, ionic, and oxidative phases of salt stress are conversed in detail to bring the salinity-mediated physiological alterations in the chloroplast on to a single platform. Chloroplasts of salt-tolerant plants have evolved highly regulated salt-responsive pathways. Thylakoid membrane remodeling, ion homeostasis, osmoprotection, upregulation of chloroplast membrane and stromal proteins, chloroplast ROS scavenging, efficient retrograde signalling, and differential gene and metabolite abundance are the key attributes of optimal photosynthesis in tolerant species. This review throws light into the comparative mechanism of chloroplast and photosynthetic response to salinity in sensitive and tolerant plant species.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"35 1","pages":"73-93"},"PeriodicalIF":2.1,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515832/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86865001","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

Protection of nitrogenase from photosynthetic O₂ evolution in Trichodesmium: methodological pitfalls and advances over 30 years of research. 固氮酶对木霉光合O2进化的保护：30年来研究的方法缺陷和进展。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2023-03-13 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2023.007

A Hania, R López-Adams, O PrášIl, M Eichner

{"title":"Protection of nitrogenase from photosynthetic O2 evolution in Trichodesmium: methodological pitfalls and advances over 30 years of research.","authors":"A Hania, R López-Adams, O PrášIl, M Eichner","doi":"10.32615/ps.2023.007","DOIUrl":"10.32615/ps.2023.007","url":null,"abstract":"The Trichodesmium genus comprises some of the most abundant N2-fixing organisms in oligotrophic marine ecosystems. Since nitrogenase, the key enzyme for N2 fixation, is irreversibly inhibited upon O2 exposure, these organisms have to coordinate their N2-fixing ability with simultaneous photosynthetic O2 production. Although being the principal object of many laboratory and field studies, the overall process of how Trichodesmium reconciles these two mutually exclusive processes remains unresolved. This is in part due to contradictory results that fuel the Trichodesmium enigma. In this review, we sift through methodological details that could potentially explain the discrepancy between findings related to Trichodesmium's physiology. In doing so, we exhaustively contrast studies concerning both spatial and temporal nitrogenase protective strategies, with particular attention to more recent insights. Finally, we suggest new experimental approaches for solving the complex orchestration of N2 fixation and photosynthesis in Trichodesmium.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"50 1","pages":"58-72"},"PeriodicalIF":2.1,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515819/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80858013","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