دورية أكاديمية
Nitrogen deficiency regulates premature senescence by modulating flag leaf function, ROS homeostasis, and intercellular sugar concentration in rice during grain filling.
| العنوان: | Nitrogen deficiency regulates premature senescence by modulating flag leaf function, ROS homeostasis, and intercellular sugar concentration in rice during grain filling. |
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| المؤلفون: | Zakari SA; Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China. shamsuado@zju.edu.cn.; Department of Crop Production, Audu Bako College of Agriculture, Dambatta, Kano, Nigeria. shamsuado@zju.edu.cn., Zaidi SHR; Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China.; Department of Agronomy, University of Agriculture, Dera Ismail Khan, 29220, Pakistan., Sunusi M; Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China.; Department of Crop Science, Faculty of Agriculture, Federal University Dutse, Jigawa, Nigeria., Dauda KD; Department of Crop Science, Kano University of Science and Technology, Wudil, Kano, Nigeria. |
| المصدر: | Journal, genetic engineering & biotechnology [J Genet Eng Biotechnol] 2021 Nov 23; Vol. 19 (1), pp. 177. Date of Electronic Publication: 2021 Nov 23. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier B.V Country of Publication: Netherlands NLM ID: 101317150 Publication Model: Electronic Cited Medium: Internet ISSN: 2090-5920 (Electronic) Linking ISSN: 1687157X NLM ISO Abbreviation: J Genet Eng Biotechnol Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: | Publication: 2024- : [Amsterdam, Netherlands] : Elsevier B.V. Original Publication: [Cairo] : Academy of Scientific Research and Technology, Information and Scientific Services Sector, National Information and Documentation Center |
| مستخلص: | Background: Leaf senescence occurs in an age-dependent manner, but the rate and timing of leaf senescence may be influenced by various biotic and abiotic factors. In the course of stress, the function, composition, and different components of photosynthetic apparatus occur to be synthesized homogeneously or degraded paradoxically due to different senescence-related processes. Nitrogen (N) deficiency is one of the critical environmental factors that induce leaf senescence, and its incidence may curtail leaf photosynthetic function and markedly alter the genetic information of plants that might result in low grain yield. However, the physiological and genetic mechanism underlying N deficiency regulates premature senescence, and flag leaf function, ROS homeostasis, and intercellular sugar concentration in rice during grain filling are not well understood. In this paper, Zhehui7954 an excellent indica restorer line (wildtype) and its corresponding mutant (psf) with the premature senescence of flag leaves were used to study the effect of different N supplies in the alteration of physiological and biochemical components of flag leaf organ and its functions during grain filling. Results: The results showed that the psf mutant appeared to be more susceptible to the varying N supply levels than WT. For instance, the psf mutant showed considerably lower Pn, Chl a, Chl b, and Car contents than its WT. N deficiency (LN) decreased leaves photosynthetic activities, N metabolites, but significantly burst O Conclusions: This work revealed that the C/N ratio and ROS undergo a gradual increase driven by interlinking positive feedback, providing a physiological framework connecting the participation of sugars and N assimilation in the regulation of leaf senescence. These results could be useful for achieving a higher yield of rice production by appropriate N supply and plant senescence regulation. (© 2021. The Author(s).) |
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| فهرسة مساهمة: | Keywords: C/N ratio; Carbon and nitrogen metabolites; Nitrogen deficiency; Premature leaf senescence; Reactive oxygen species (ROS) |
| تواريخ الأحداث: | Date Created: 20211123 Latest Revision: 20211211 |
| رمز التحديث: | 20221213 |
| مُعرف محوري في PubMed: | PMC8611147 |
| DOI: | 10.1186/s43141-021-00275-3 |
| PMID: | 34812974 |
| قاعدة البيانات: | MEDLINE |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 2090-5920 |
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| DOI: | 10.1186/s43141-021-00275-3 |