Abstract
Developmental age is a strong determinant of stress responses in plants. Differential susceptibility to various environmental stresses is widely observed at both the organ and whole-plant level. While it is clear that age determines stress susceptibility, the causes, regulatory mechanisms, and functions are only now beginning to emerge. Compared with concepts on age-related biotic stress resilience, advancements in the abiotic stress field are relatively limited. In this review, we focus on current knowledge of ontogenic resistance to abiotic stresses, highlighting examples at the organ (leaf) and plant level, preceded by an overview of the relevant concepts in plant aging. We also discuss age-related abiotic stress resilience mechanisms, speculate on their functional relevance, and outline outstanding questions.
Original language | English |
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Pages (from-to) | 692-705 |
Number of pages | 14 |
Journal | Trends in Plant Science |
Volume | 26 |
Issue number | 7 |
Early online date | 25 Jan 2021 |
DOIs | |
Publication status | Published - Jul 2021 |
Funding
We are appreciative of the financial support for our research from: The Netherlands Organisation for Scientific Research (NWO), grants TTW 14700 (R.S.), 016.VIDI.171.006 (T.R. and R.S.), and 867.15.031 (R.S.), ALWOP.419 (H.v.V. and R.S.); and the KU Leuven Special Research Fund grant nr C14/18/056 (BVdP), the Research Foundation Flanders (FWO) grant nr G092419N (B.V.d.P. and B.G.), and 11C4321N (B.G.), and the Interreg Vlaanderen-Nederland project GROW! (B.V.d.P. and K.H.). We would like to thank Barbara De Coninck for comments on a final draft of this manuscript.
Keywords
- abiotic stress
- aging
- ontogeny