Sasi, J M and Gupta, S and Singh, A and Kujur, A and Agarwal, M and Agarwal, S K (2022) Know when and how to die: gaining insights into the molecular regulation of leaf senescence. Physiology and Molecular Biology of Plants, 28. pp. 1515-1534. ISSN 0974-0430
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Senescence is the ultimate phase in the life cycle of leaves which is crucial for recycling of nutrients to maintain plant fitness and reproductive success. The earliest visible manifestation of leaf senescence is their yellowing, which usually commences with the breakdown of chlorophyll. The degradation process involves a gradual and highly coordinated disassembly of macromolecules resulting in the accumulation of nutrients, which are subsequently mobilized from the senescing leaves to the developing organs. Leaf senescence progresses under overly tight genetic and molecular control involving a well-orchestrated and intricate network of regulators that coordinate spatio-temporally with the influence of both internal and external cues. Owing to the advancements in omics technologies, the availability of mutant resources, scalability of molecular analyses methodologies and the advanced capacity to integrate multidimensional data, our understanding of the genetic and molecular basis of leaf ageing has greatly expanded. The review provides a compilation of the multitier regulation of senescence process and the interrelation between the environment and the terminal phase of leaf development. The knowledge gained would benefit in devising the strategies for manipulation of leaf senescence process to improve crop quality and productivity.
| Item Type: | Article |
|---|---|
| Divisions: | Center of Excellence in Genomics and Systems Biology |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | Senescence, Regulation, Omics technologies, Crop productivity |
| Subjects: | Others > Crop Physiology Others > Plant Physiology |
| Depositing User: | Mr Nagaraju T |
| Date Deposited: | 11 Jan 2024 08:15 |
| Last Modified: | 11 Jan 2024 08:15 |
| URI: | http://oar.icrisat.org/id/eprint/12350 |
| Official URL: | https://link.springer.com/article/10.1007/s12298-0... |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | Research fundings from PURSE (Promotion of University Research and Scientific Excellence) and CRG (Core Research Grant) grants of Department of Science and Technology (DST), Government of India; DU-IoE (Delhi University-Institute of Eminence, IoE/FRP/LS/2020/27), Delhi, India; UGC (University Grants Commission, 41-512/2021(SR)) and DBT (Department of Biotechnology), Government of India are acknowledged. |
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