Photosynthetica最新文献_第10页

Photosynthetic mechanism of high yield under an improved wide-narrow row planting pattern in maize. 改良宽窄行种植模式下玉米高产的光合机制

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-09-06 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.032

X L Ge, Y B Chen, Y Wang, B C Wang, Q Chao, Y Yu, X J Gong, Y B Hao, L Li, Y B Jiang, G Y Lv, C R Qian, C D Jiang

引用次数: 0

Diurnal decline in the photosynthetic capacity of uppermost leaves in an eggplant canopy grown in a horticultural greenhouse. 园艺温室中茄子冠层最上层叶片光合能力的日下降。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-08-31 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.040

K Nomura, M Saito, M Ito, S Yamane, T Iwao, I Tada, T Yamazaki, S Ono, D Yasutake, M Kitano

{"title":"Diurnal decline in the photosynthetic capacity of uppermost leaves in an eggplant canopy grown in a horticultural greenhouse.","authors":"K Nomura, M Saito, M Ito, S Yamane, T Iwao, I Tada, T Yamazaki, S Ono, D Yasutake, M Kitano","doi":"10.32615/ps.2022.040","DOIUrl":"10.32615/ps.2022.040","url":null,"abstract":"Parameters representing leaf photosynthetic capacity, namely, the maximal carboxylation rate (V cmax), maximal electron transport rate (J max), and triose phosphate-utilization rate (T p), can vary depending on various factors. The present study investigated diurnal variations in V cmax, J max, and T p of uppermost leaves of soil-grown, well-watered eggplant in a greenhouse based on the simultaneous measurements of leaf gas exchange and chlorophyll fluorescence. The values of net photosynthetic rates and electron transport rates plotted against intercellular CO2 concentrations were noticeably higher in the morning than in the afternoon. Significant differences were detected among the values of V cmax, J max, and T p obtained at different times of day (08:30, 11:00, 13:30, and 16:00 h). All three parameters tended to decline as the time of day advanced; compared to the values at 08:30 h, V cmax, J max, and T p declined by approximately 15% at 16:00 h. Among the three parameters, T p appeared to be the most sensitive to time.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"42 1","pages":"457-464"},"PeriodicalIF":2.1,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558575/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84259176","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

Influence of phytochromes on microRNA expression, phenotype, and photosynthetic activity in A. thaliana phy mutants under light with different spectral composition. 光敏色素对不同光谱组成光下拟南芥物理突变体microRNA表达、表型和光合活性的影响

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-08-25 eCollection Date: 2023-01-01 DOI: 10.32615/ps.2022.036

P Pashkovskiy, V Kreslavski, A Khudyakova, A Kosobryukhov, Vl V Kuznetsov, S I Allakhverdiev

{"title":"Influence of phytochromes on microRNA expression, phenotype, and photosynthetic activity in A. thaliana phy mutants under light with different spectral composition.","authors":"P Pashkovskiy, V Kreslavski, A Khudyakova, A Kosobryukhov, Vl V Kuznetsov, S I Allakhverdiev","doi":"10.32615/ps.2022.036","DOIUrl":"10.32615/ps.2022.036","url":null,"abstract":"Light-induced changes in miRNAs, morphogenesis, and photosynthetic processes in phytochrome-deficient mutant plants grown under different light qualities were studied. miRNA activity in many processes is regulated by phytochromes and phytochrome-interacting factors (PIFs). The reduced content of photoreceptors in phytochrome mutants affects the PIF-microRNA interaction. In plants grown under red light (RL) and white light (WL), the phenotype of phyb mutant was distorted; however, under blue light (BL) conditions, the phyb phenotype was normalized. The photosynthetic rates of both the mutants and wild type were higher under BL than under RL and WL. The expression of most studied miRNAs increased in phyaphyb mutants under BL conditions, which is probably one of the reasons for the normalization of the phenotype, the increase in PSII activity, and the photosynthetic rate. MicroRNAs under BL can partially improve photosynthesis and phenotype of the mutants, which indicates the conjugation of the functioning of phytochromes in miRNA formation.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"198 1","pages":"138-147"},"PeriodicalIF":2.1,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515817/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73668690","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

Comparative study of photosynthetic capacity in lower leaves in the canopy of dwarf and semidwarf wheat. 矮秆和半矮秆小麦冠层下部叶片光合能力的比较研究。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-08-22 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.037

H W Li, J Zhang, Q Zheng, B Li, Z S Li

{"title":"Comparative study of photosynthetic capacity in lower leaves in the canopy of dwarf and semidwarf wheat.","authors":"H W Li, J Zhang, Q Zheng, B Li, Z S Li","doi":"10.32615/ps.2022.037","DOIUrl":"10.32615/ps.2022.037","url":null,"abstract":"Semidwarf wheat contributes to significant yield increase worldwide, however, few dwarf cultivars of wheat are cultivated due to grain yield penalty. In this study, a new dwarf wheat Triticum aestivum L., cv. Xiaoyan 101, was investigated to explore its photosynthetic performance and yield potential. In the comparison of the semidwarf wheat cultivars, Jing 411 and Xiaoyan 101, although the first three leaves (including flag leaves) did not differ significantly in both genotypes, Xiaoyan 101 conferred a higher content of photosynthetic pigments and higher photochemical efficiency but had lower contents of hydrogen peroxide and malondialdehyde in lower leaves in the canopy. In addition, the antioxidant enzymes-encoding genes were upregulated while the senescence-associated genes (TaSAG3, TaSAG5, TaSAG7, and TaSAG12) were downregulated in lower leaves in the canopy of Xiaoyan 101. Ultimately, Xiaoyan 101 produced approximate or even higher grain yield than the local semidwarf wheat varieties. Therefore, it is possible to breed dwarf wheat with enhanced photosynthetic activity but without yield sacrifice.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"70 1","pages":"445-456"},"PeriodicalIF":2.1,"publicationDate":"2022-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558582/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85068467","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

Ultrastructure, adaptability, and alleviation mechanisms of photosynthetic apparatus in plants under waterlogging: A review. 植物光合机构在涝渍条件下的超微结构、适应性及缓解机制研究进展

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-08-18 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.033

S Sharma, U Bhatt, J Sharma, H M Kalaji, J Mojski, V Soni

{"title":"Ultrastructure, adaptability, and alleviation mechanisms of photosynthetic apparatus in plants under waterlogging: A review.","authors":"S Sharma, U Bhatt, J Sharma, H M Kalaji, J Mojski, V Soni","doi":"10.32615/ps.2022.033","DOIUrl":"10.32615/ps.2022.033","url":null,"abstract":"Photosynthesis is a process highly sensitive to various abiotic and biotic stresses in plants. Among them, the major abiotic stress, waterlogging, affects the crop's growth and productivity. Under waterlogging, the photosynthetic apparatus of plants was destroyed. Waterlogging reduced chlorophyll content and the net photosynthetic rate. Therefore, this updated review summarized the effect of waterlogging on chloroplast ultrastructure, photosynthetic characteristics, and chlorophyll fluorescence attributes of plant species. By studying various research papers, we found that intercellular concentration of available carbon dioxide in mesophyll cells, assimilation of carbon, and the net photosynthetic ratio declined under waterlogging. The chlorophyll fluorescence efficiency of plants decreased under waterlogging. Thus, the study of photosynthesis in plants under waterlogging should be done with respect to changing climate. Moreover, the recognition of photosynthetic characteristics present in tolerant species will be beneficial for designing the waterlogging-tolerant crop plant in changing environments.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"80 1","pages":"430-444"},"PeriodicalIF":2.1,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558593/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80440703","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 effects of nitrogen application on the growth, photosynthesis, and antioxidant activity of Amaranthus viridis. 施氮对绿苋菜生长、光合作用及抗氧化活性的影响。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-08-16 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.034

C-C Chen, M-Y Huang, K-H Lin, M-T Hsueh

引用次数: 0

Both uniconazole and 5-aminolevulinic acid increase maize (Zea mays L.) yield by changing its ear morphology and increasing photosynthetic efficiency and antioxidants in saline-alkali land. 在盐碱地上，单硝唑和5-氨基乙酰丙酸均通过改变玉米穗形、提高光合效率和抗氧化剂来提高玉米产量。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-07-12 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.029

L Xu, N J Feng, X L Liang, H H Zhao, S Y Wang, Y Jiang, Y Zhao, D F Zheng

{"title":"Both uniconazole and 5-aminolevulinic acid increase maize (Zea mays L.) yield by changing its ear morphology and increasing photosynthetic efficiency and antioxidants in saline-alkali land.","authors":"L Xu, N J Feng, X L Liang, H H Zhao, S Y Wang, Y Jiang, Y Zhao, D F Zheng","doi":"10.32615/ps.2022.029","DOIUrl":"10.32615/ps.2022.029","url":null,"abstract":"Saline-alkaline stress is one of the most detrimental abiotic stresses that restrict the yield and physiological activity of maize (Zea mays L.). In the present study, maize was planted on saline-alkali land, while 25 mg L-1 uniconazole (S3307) and 40 mg L-1 5-aminolevulinic acid (ALA) were sprayed at the stage of nine expanded leaves. Our results showed that both S3307 and ALA applications significantly increased all ear width, volume, and mass in the maturity stage. Both applications also upregulated photosynthetic efficiency via increasing the chlorophyll content, net photosynthetic rate, transpiration rate, and stomatal conductance, as well as reduced the intercellular CO2 concentration after the silking stage. In addition, both applications upregulated further the antioxidant system via enhancing the activity of antioxidants and contents of soluble protein and sugar, as well as reducing the malondialdehyde content after the silking stage. Thus, both S3307 and ALA applications can improve maize yield in saline-alkali land via enhancing ear morphology and increasing photosynthetic efficiency and antioxidants.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"30 1","pages":"408-419"},"PeriodicalIF":2.1,"publicationDate":"2022-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558603/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81743484","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

Systematic salt tolerance-related physiological mechanisms of wild soybean and their role in the photosynthetic activity and Na⁺ distribution of grafted soybean plants. 野生大豆系统耐盐生理机制及其在嫁接大豆植株光合活性和Na+分布中的作用

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-07-11 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.030

Z C Xue, Y Wang, J Liu

{"title":"Systematic salt tolerance-related physiological mechanisms of wild soybean and their role in the photosynthetic activity and Na+ distribution of grafted soybean plants.","authors":"Z C Xue, Y Wang, J Liu","doi":"10.32615/ps.2022.030","DOIUrl":"10.32615/ps.2022.030","url":null,"abstract":"Systematic salt tolerance-related physiological mechanisms in roots and shoots of halophyte Dongying wild soybean have not yet been thoroughly studied. In this study, photosynthesis, modulated 820-nm reflection, chlorophyll a fluorescence, and Na+ distribution in cultivated (G mc) and wild (G sw) soybean leaves of grafted soybean plants were investigated after NaCl treatment. Results showed that the decreases in photosynthetic rate, performance index, active P700 content, and plastocyanin reduction were significantly greater in the G sw leaves than those in the G mc leaves. The observed increases in the Na+ concentration in the G sw leaves were likely responsible for the severe decrease in the photosynthetic activity of grafted plants. We suggest that Na+ accumulation in G sw roots, which prevents the transport of Na+ from the roots to the shoots, effectively maintains the concentration of Na+ at a comparatively low level in the leaves to prevent the destruction of the photosynthetic apparatus by salt.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"59 1","pages":"400-407"},"PeriodicalIF":2.1,"publicationDate":"2022-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558600/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91009798","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

Mitigative effect of 6-benzyladenine on photosynthetic capacity and leaf ultrastructure of maize seedlings under waterlogging stress. 6-苄基腺嘌呤对涝渍胁迫下玉米幼苗光合能力和叶片超微结构的缓解作用

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-06-21 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.027

J Wang, Y L Wang, D Y Wang, J X Huang, Y B Liu, M Zhu, F H Li

{"title":"Mitigative effect of 6-benzyladenine on photosynthetic capacity and leaf ultrastructure of maize seedlings under waterlogging stress.","authors":"J Wang, Y L Wang, D Y Wang, J X Huang, Y B Liu, M Zhu, F H Li","doi":"10.32615/ps.2022.027","DOIUrl":"10.32615/ps.2022.027","url":null,"abstract":"6-Benzyladenine (6-BA) is an artificial synthetic cytokinin, which plays an important role in regulating plant responses to abiotic stress. This study aimed to investigate the mitigative effect of exogenous 6-BA on photosynthetic capacities and leaf ultrastructure under waterlogging stress using two waxy corn inbred lines. The results showed that waterlogging stress disrupted the photosynthesis of waxy corn seedlings. However, exogenous 6-BA alleviated the inhibition caused by waterlogging stress. Under the waterlogging conditions, 6-BA treatment of plants helped preserve the structural integrity of the chloroplasts and retain higher contents of photosynthetic pigments. It also increased the photosynthetic capacity and promoted the openness of stomatal pores. Moreover, exogenous 6-BA promoted photosynthetic activities and the accumulation of carbohydrates. The results revealed that the detrimental effects of waterlogging stress on maize seedlings can be alleviated by 6-BA via modulating photosynthetic activities.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"28 1","pages":"389-399"},"PeriodicalIF":2.1,"publicationDate":"2022-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558590/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80371333","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

Biochemical, gas exchange, and chlorophyll fluorescence analysis of maize genotypes under drought stress reveals important insights into their interaction and homeostasis. 干旱胁迫下玉米基因型的生化、气体交换和叶绿素荧光分析揭示了它们之间相互作用和动态平衡的重要意义。

IF 2.1 4区生物学

Photosynthetica Pub Date : 2022-06-03 eCollection Date: 2022-01-01 DOI: 10.32615/ps.2022.024

G M Singh, S Goldberg, D Schaefer, F Zhang, S Sharma, V K Mishra, J Xu

{"title":"Biochemical, gas exchange, and chlorophyll fluorescence analysis of maize genotypes under drought stress reveals important insights into their interaction and homeostasis.","authors":"G M Singh, S Goldberg, D Schaefer, F Zhang, S Sharma, V K Mishra, J Xu","doi":"10.32615/ps.2022.024","DOIUrl":"10.32615/ps.2022.024","url":null,"abstract":"Many studies have been conducted on maize to study the effect of drought on yield at the flowering stage, but understanding biochemical and photosynthetic response against drought at the seedling stage needs to be well established. Thus, to understand differential changes and interaction of biochemical and photosynthetic parameters at the seedling stage under drought, a greenhouse experiment with twelve maize genotypes under severe drought (30% field capacity) and irrigated (90-100% field capacity) conditions were performed. Drought differentially altered biochemical and photosynthetic parameters in all genotypes. A sharp increase in hydrogen peroxide, malondialdehyde (MDA), and total antioxidant capacity (TAOC) were seen and a positive association between H2O2 and TAOC, and MDA and transpiration rate (E) was observed under drought. Nonphotochemical quenching increased under drought to avoid the photosystem damage. PCA biplot analysis showed that reducing E and increasing photosynthetic efficiency would be a better drought adaptation mechanism in maize at the seedling stage.","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"203 1","pages":"376-388"},"PeriodicalIF":2.1,"publicationDate":"2022-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558602/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80264877","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