Journal
FRONTIERS IN PLANT SCIENCE
Volume 12, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fpls.2021.667458
Keywords
morphological adaptation; endogenous hormone response; signal transduction; epigenetic regulation; osmotic regulation; saline-alkali stress
Categories
Funding
- Heilongjiang Bayi Agricultural University Three Horizontal and Three Vertical Project (2018 Platform Support Project-Heilongjiang Plant Growth Regulator Engineering-Technology Research Center)
- Cereals Production and Processing Special Subject Program
- Cereals System Project of Heilongjiang Province
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Studies on plant resistance mechanisms under salt-alkali mixed stress are relatively scarce compared to those on salt stress alone. However, the synergistic effects of high concentrations of salt and high pH can be more harmful to plant growth, making it crucial to research plant response to saline-alkali stress for sustainable agricultural development.
As two coexisting abiotic stresses, salt stress and alkali stress have severely restricted the development of global agriculture. Clarifying the plant resistance mechanism and determining how to improve plant tolerance to salt stress and alkali stress have been popular research topics. At present, most related studies have focused mainly on salt stress, and salt-alkali mixed stress studies are relatively scarce. However, in nature, high concentrations of salt and high pH often occur simultaneously, and their synergistic effects can be more harmful to plant growth and development than the effects of either stress alone. Therefore, it is of great practical importance for the sustainable development of agriculture to study plant resistance mechanisms under saline-alkali mixed stress, screen new saline-alkali stress tolerance genes, and explore new plant salt-alkali tolerance strategies. Herein, we summarized how plants actively respond to saline-alkali stress through morphological adaptation, physiological adaptation and molecular regulation.
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