Photosynthetica最新文献

Vapor-pressure-deficit-controlled temperature response of photosynthesis in tropical trees.

IF 2.1 4区生物学

Photosynthetica Pub Date : 2024-10-10 eCollection Date: 2024-01-01 DOI: 10.32615/ps.2024.034

C E Eze, K Winter, M Slot

引用次数: 0

Light curve parametrization of three rice (Oryza sativa L.) cultivars based on mechanistic models.

IF 2.1 4区生物学

Photosynthetica Pub Date : 2024-09-30 eCollection Date: 2024-01-01 DOI: 10.32615/ps.2024.033

Z P Ye, S X Zhou, X L Yang, H J Kang, S H Duan, F B Wang

{"title":"Light curve parametrization of three rice (Oryza sativa L.) cultivars based on mechanistic models.","authors":"Z P Ye, S X Zhou, X L Yang, H J Kang, S H Duan, F B Wang","doi":"10.32615/ps.2024.033","DOIUrl":"10.32615/ps.2024.033","url":null,"abstract":"This study aimed to assess variations in leaf gas-exchange characteristics, leaf pigment contents, and some intrinsic traits of photosynthetic pigment molecules in three rice cultivars (cv. JR3015, Wufengyou3015, and Jifengyou3015) using mechanistic models. The findings revealed that chlorophyll content varied significantly among the three cultivars, but not maximum electron transport rate. JR3015 had lower chlorophyll content but the highest eigen-absorption cross-section (σik) and the lowest minimum average life-time of photosynthetic pigment molecules in the excited state (τmin). Our results suggested that the highest σik and the lowest τmin in JR3015 facilitated its electron transport rate despite its lower leaf chlorophyll content. Furthermore, compared to Jifengyou3015 and Wufengyou3015, JR3015 had the lowest photosynthetic electron-use efficiency via PSII, which contributed to its lowest maximum net photosynthetic rate. These findings are important in selecting rice cultivars based on their differences in photosynthetic capacity.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"62 3","pages":"305-313"},"PeriodicalIF":2.1,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11622559/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142794774","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

Letter to the Editor.

IF 2.1 4区生物学

Photosynthetica Pub Date : 2024-09-30 eCollection Date: 2024-01-01 DOI: 10.32615/ps.2024.036

U Schreiber

引用次数: 0

On the discovery of the two-light effect on chlorophyll a fluorescence: Quenching of chlorophyll a fluorescence of Photosystem II by Photosystem I light.

IF 2.1 4区生物学

Photosynthetica Pub Date : 2024-09-18 eCollection Date: 2024-01-01 DOI: 10.32615/ps.2024.035

G Govindjee

引用次数: 0

Morphophysiological responses of black pepper to recurrent water deficit.

IF 2.1 4区生物学

Photosynthetica Pub Date : 2024-08-30 eCollection Date: 2024-01-01 DOI: 10.32615/ps.2024.030

T R Ferreira, V P Sallin, B Cerri Neto, J Crasque, A Pires, P S Rodrigues, H Chisté, A B P Lima, J A Machado Filho, L O Arantes, J M S Lira, A R Falqueto, S Dousseau-Arantes

{"title":"Morphophysiological responses of black pepper to recurrent water deficit.","authors":"T R Ferreira, V P Sallin, B Cerri Neto, J Crasque, A Pires, P S Rodrigues, H Chisté, A B P Lima, J A Machado Filho, L O Arantes, J M S Lira, A R Falqueto, S Dousseau-Arantes","doi":"10.32615/ps.2024.030","DOIUrl":"10.32615/ps.2024.030","url":null,"abstract":"This study investigated the effects of recurrent water deficit on drought tolerance traits in black pepper (Piper nigrum L.) 'Bragantina'. Plants were subjected to three cycles of water deficit followed by recovery periods. Water deficit reduced stomatal conductance, photosynthesis, transpiration, and water potential while increasing water-use efficiency. In addition, intercellular CO2 concentration, leaf temperature, root starch, and adaptive morphological characteristics in leaves and roots increased. Despite these adaptations, plants did not recover vegetative growth after rehydration. The primary tolerance mechanisms observed included increased abaxial epidermis thickness, stomatal density, fine roots, periderm thickness, and starch accumulation in roots. Although gas exchange and leaf water potential were restored, vegetative growth did not fully recover. This study highlights the response of black pepper to recurrent water stress and the underlying mechanisms of its drought tolerance.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"62 3","pages":"292-301"},"PeriodicalIF":2.1,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11622609/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142794776","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

Letter to the Editor.

IF 2.1 4区生物学

Photosynthetica Pub Date : 2024-08-23 eCollection Date: 2024-01-01 DOI: 10.32615/ps.2024.032

G Garab

引用次数: 0

Physiological response to low-nitrogen stress and comprehensive evaluation in four rice varieties.

IF 2.1 4区生物学

Photosynthetica Pub Date : 2024-08-06 eCollection Date: 2024-01-01 DOI: 10.32615/ps.2024.028

Y F Zhang, H Cai, E T You, X Q Qiao, Z P Gao, G X Chen

{"title":"Physiological response to low-nitrogen stress and comprehensive evaluation in four rice varieties.","authors":"Y F Zhang, H Cai, E T You, X Q Qiao, Z P Gao, G X Chen","doi":"10.32615/ps.2024.028","DOIUrl":"10.32615/ps.2024.028","url":null,"abstract":"Rice (Oryza sativa L.) research has rarely focused on the response to low-nitrogen stress in different subtypes previously and lacked a low-nitrogen tolerance evaluation system. Here, we investigated the physiological characteristics under moderate and low-nitrogen stress conditions in two japonica cultivars (NG46 and NG9108) and two indica cultivars (LYP9 and 9311). Using subordinate function analysis and principal component analysis, the low-nitrogen tolerance of four rice varieties was comprehensively evaluated; stomatal conductance, total carotenoid content, and nitrate reductase NR activity were taken as the low-nitrogen tolerance evaluation system. Among the four rice cultivars, NG46 and LYP9 had significant advantages in photosynthetic gas-exchange capacity, optimizing the balance between light-harvesting capacity, the ratio of reaction center inactivation, the magnitude of decrease in heat dissipation, and nitrogen-metabolism enzyme activities. The results investigated the physiological mechanisms of rice adaptation to low-nitrogen stress and offered a reliable method for assessing low-nitrogen tolerance in rice.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"62 3","pages":"252-262"},"PeriodicalIF":2.1,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11622558/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142794792","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

Relationship between photosynthetic performance and yield loss in winter oilseed rape (Brassica napus L.) under frost conditions.

IF 2.1 4区生物学

Photosynthetica Pub Date : 2024-07-31 eCollection Date: 2024-01-01 DOI: 10.32615/ps.2024.025

P Dąbrowski, Ł Jełowicki, Z M Jaszczuk, S Maihoub, J Wróbel, H M Kalaji

{"title":"Relationship between photosynthetic performance and yield loss in winter oilseed rape (Brassica napus L.) under frost conditions.","authors":"P Dąbrowski, Ł Jełowicki, Z M Jaszczuk, S Maihoub, J Wróbel, H M Kalaji","doi":"10.32615/ps.2024.025","DOIUrl":"10.32615/ps.2024.025","url":null,"abstract":"Winter oilseed rape (Brassica napus L.), the principal oilseed crop in Europe, is notably vulnerable to spring frosts that can drastically reduce yields in ways that are challenging to predict with standard techniques. Our research focused on evaluating the efficacy of photosynthetic efficiency analysis in this crop and identifying specific chlorophyll fluorescence parameters severely impacted by frost, which could serve as noninvasive biomarkers for yield decline. The experiments were carried out in semi-controlled conditions with several treatments: a control, one day at -3°C, three days at -3°C, one day at -6°C, and three days at -6°C. We employed continuous-excitation and pulse-amplitude-modulation chlorophyll fluorescence measurements to assess plant sensitivity to frost. Also, plant gas exchange and chlorophyll content index measurements were performed. Certain parameters strongly correlated with final yield losses, thereby establishing a basis for developing new agricultural protocols to predict and mitigate frost damage in rapeseed crops accurately.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"62 3","pages":"240-251"},"PeriodicalIF":2.1,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11622556/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142794795","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

Selenium improves wheat antioxidant capacity, photosynthetic capacity, and growth under cadmium stress.

IF 2.1 4区生物学

Photosynthetica Pub Date : 2024-07-30 eCollection Date: 2024-01-01 DOI: 10.32615/ps.2024.027

L M Wu, N H Lu

{"title":"Selenium improves wheat antioxidant capacity, photosynthetic capacity, and growth under cadmium stress.","authors":"L M Wu, N H Lu","doi":"10.32615/ps.2024.027","DOIUrl":"10.32615/ps.2024.027","url":null,"abstract":"Cadmium stress (CS) induced the peroxide damage and inhibited wheat photosynthetic capacity and growth. Compared to CS, selenium (Se) application plus CS bolstered chlorophyll and carotenoid contents, photosynthetic rate, the maximum photochemical efficiency of PSII, the quantum yield of PSII photochemistry, and photochemical quenching, superoxide dismutase, catalase, ascorbate peroxidase, glutathione reductase, L-galactono-1,4-lactone dehydrogenase, and gamma-glutamylcysteine synthetase activities, ascorbic acid and glutathione contents, AsA/dehydroascorbic acid and GSH/oxidized glutathione, and decreased nonphotochemical quenching (qN), antioxidant biomarkers malondialdehyde and hydrogen peroxide contents, and electrolyte leakage (EL). At the same time, Se alone declined antioxidant biomarkers contents, qN and EL, and augmented the rest of the aforementioned indexes. Our research implied that Se upregulated wheat's antioxidant capacity. In this way, Se improved wheat photosynthetic performance and growth, especially for 10 μM sodium selenite (Na2SeO3). Consequently, 10 μM Na2SeO3 may be considered a useful exogenous substance to reinforce wheat cadmium tolerance.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"62 3","pages":"232-239"},"PeriodicalIF":2.1,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11622546/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142794866","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

Chlorophyll and growth performance of biological sand-fixing materials inoculated on sandy desert surface.

IF 2.1 4区生物学

Photosynthetica Pub Date : 2024-06-27 eCollection Date: 2024-01-01 DOI: 10.32615/ps.2024.020

H R Ren, L Tao, J Ren, X C Ren

引用次数: 0