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Low Light/Darkness as Stressors of Multifactor-Induced Senescence in Rice Plants by Ahmed G. Gad; Habiba; Xiangzi Zheng; Ying Miao is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is Low Light/Darkness as Stressors of Multifactor-Induced Senescence in Rice Plants about?

Leaf senescence, as an integral part of the final development stage for plants, primarily remobilizes nutrients from the sources to the sinks in response to different stressors. The premature senescence of leaves is a critical challenge that causes significant economic losses in terms of crop yields. Although low light causes losses of up to 50% and affects rice yield and quality, its regulatory mechanisms remain poorly elucidated. Darkness-mediated premature leaf senescence is a well-studied stressor. It initiates the expression of senescence-associated genes (SAGs), which have been implicated in chlorophyll breakdown and degradation. The molecular and biochemical regulatory mechanisms of premature leaf senescence show significant levels of redundant biomass in complex pathways. Thus, clarifying the regulatory mechanisms of low-light/dark-induced senescence may be conducive to developing strategies for rice crop improvement. This review describes the recent molecular regulatory mechanisms associated with low-light response and dark-induced senescence (DIS), and their effects on plastid signaling and photosynthesis-mediated processes, chloroplast and protein degradation, as well as

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Author

Ahmed G. Gad; Habiba; Xiangzi Zheng; Ying Miao

Publisher

MDPI AG

Published

2021

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)