Cargando…

Research progress on the relationship between leaf senescence and quality, yield and stress resistance in horticultural plants

Leaf senescence, the final stage of leaf development, is one of the adaptive mechanisms formed by plants over a long period of evolution. Leaf senescence is accompanied by various changes in cell structure, physiological metabolism, and gene expressions. This process is controlled by a variety of in...

Descripción completa

Detalles Bibliográficos
Autores principales: Zhao, Wenxue, Zhao, Huayuan, Wang, Huasen, He, Yong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9638160/
https://www.ncbi.nlm.nih.gov/pubmed/36352873
http://dx.doi.org/10.3389/fpls.2022.1044500
_version_ 1784825350132334592
author Zhao, Wenxue
Zhao, Huayuan
Wang, Huasen
He, Yong
author_facet Zhao, Wenxue
Zhao, Huayuan
Wang, Huasen
He, Yong
author_sort Zhao, Wenxue
collection PubMed
description Leaf senescence, the final stage of leaf development, is one of the adaptive mechanisms formed by plants over a long period of evolution. Leaf senescence is accompanied by various changes in cell structure, physiological metabolism, and gene expressions. This process is controlled by a variety of internal and external factors. Meanwhile, the genes and plant hormones involved in leaf aging affect the quality, yield and stress resistance in horticultural plants. Leaf senescence mediated by plant hormones affected plant quality at both pre-harvest and post-harvest stages. Exogenous plant growth regulators or plant hormone inhibitors has been applied to delay leaf senescence. Modification of related gene expression by over-expression or antisense inhibition could delay or accelerate leaf senescence, and thus influence quality. Environmental factors such as light, temperature and water status also trigger or delay leaf senescence. Delaying leaf senescence could increase chloroplast lifespan and photosynthesis and thus improve source strength, leading to enhanced yield. Accelerating leaf senescence promotes nutrient redistribution from old leaves into young leaves, and may raise yield under certain circumstances. Many genes and transcriptional factors involved in leaf senescence are associated with responses to abiotic and biotic stresses. WRKY transcriptional factors play a vital role in this process and they could interact with JA signalling. This review summarized how genes, plant hormones and environmental factors affect the quality, yield. Besides, the regulation of leaf senescence holds great promise to improving the resistance to plant biotic and abiotic stresses.
format Online
Article
Text
id pubmed-9638160
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher Frontiers Media S.A.
record_format MEDLINE/PubMed
spelling pubmed-96381602022-11-08 Research progress on the relationship between leaf senescence and quality, yield and stress resistance in horticultural plants Zhao, Wenxue Zhao, Huayuan Wang, Huasen He, Yong Front Plant Sci Plant Science Leaf senescence, the final stage of leaf development, is one of the adaptive mechanisms formed by plants over a long period of evolution. Leaf senescence is accompanied by various changes in cell structure, physiological metabolism, and gene expressions. This process is controlled by a variety of internal and external factors. Meanwhile, the genes and plant hormones involved in leaf aging affect the quality, yield and stress resistance in horticultural plants. Leaf senescence mediated by plant hormones affected plant quality at both pre-harvest and post-harvest stages. Exogenous plant growth regulators or plant hormone inhibitors has been applied to delay leaf senescence. Modification of related gene expression by over-expression or antisense inhibition could delay or accelerate leaf senescence, and thus influence quality. Environmental factors such as light, temperature and water status also trigger or delay leaf senescence. Delaying leaf senescence could increase chloroplast lifespan and photosynthesis and thus improve source strength, leading to enhanced yield. Accelerating leaf senescence promotes nutrient redistribution from old leaves into young leaves, and may raise yield under certain circumstances. Many genes and transcriptional factors involved in leaf senescence are associated with responses to abiotic and biotic stresses. WRKY transcriptional factors play a vital role in this process and they could interact with JA signalling. This review summarized how genes, plant hormones and environmental factors affect the quality, yield. Besides, the regulation of leaf senescence holds great promise to improving the resistance to plant biotic and abiotic stresses. Frontiers Media S.A. 2022-10-24 /pmc/articles/PMC9638160/ /pubmed/36352873 http://dx.doi.org/10.3389/fpls.2022.1044500 Text en Copyright © 2022 Zhao, Zhao, Wang and He https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Zhao, Wenxue
Zhao, Huayuan
Wang, Huasen
He, Yong
Research progress on the relationship between leaf senescence and quality, yield and stress resistance in horticultural plants
title Research progress on the relationship between leaf senescence and quality, yield and stress resistance in horticultural plants
title_full Research progress on the relationship between leaf senescence and quality, yield and stress resistance in horticultural plants
title_fullStr Research progress on the relationship between leaf senescence and quality, yield and stress resistance in horticultural plants
title_full_unstemmed Research progress on the relationship between leaf senescence and quality, yield and stress resistance in horticultural plants
title_short Research progress on the relationship between leaf senescence and quality, yield and stress resistance in horticultural plants
title_sort research progress on the relationship between leaf senescence and quality, yield and stress resistance in horticultural plants
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9638160/
https://www.ncbi.nlm.nih.gov/pubmed/36352873
http://dx.doi.org/10.3389/fpls.2022.1044500
work_keys_str_mv AT zhaowenxue researchprogressontherelationshipbetweenleafsenescenceandqualityyieldandstressresistanceinhorticulturalplants
AT zhaohuayuan researchprogressontherelationshipbetweenleafsenescenceandqualityyieldandstressresistanceinhorticulturalplants
AT wanghuasen researchprogressontherelationshipbetweenleafsenescenceandqualityyieldandstressresistanceinhorticulturalplants
AT heyong researchprogressontherelationshipbetweenleafsenescenceandqualityyieldandstressresistanceinhorticulturalplants