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The Role of Hydrogen Sulfide in Plant Roots During Development and in Response to Abiotic Stress

Overview
Journal Int J Mol Sci
Publisher MDPI
Date 2022 Feb 15
PMID 35162947
Authors
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Abstract

Hydrogen sulfide (HS) is regarded as a "New Warrior" for managing plant stress. It also plays an important role in plant growth and development. The regulation of root system architecture (RSA) by HS has been widely recognized. Plants are dependent on the RSA to meet their water and nutritional requirements. They are also partially dependent on the RSA for adapting to environment change. Therefore, a good understanding of how HS affects the RSA could lead to improvements in both crop function and resistance to environmental change. In this review, we summarized the regulating effects of HS on the RSA in terms of primary root growth, lateral and adventitious root formation, root hair development, and the formation of nodules. We also discussed the genes involved in the regulation of the RSA by HS, and the relationships with other signal pathways. In addition, we discussed how HS regulates root growth in response to abiotic stress. This review could provide a comprehensive understanding of the role of HS in roots during development and under abiotic stress.

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