Article ; Online: The AP2/ERF transcription factor MdDREB2A regulates nitrogen utilisation and sucrose transport under drought stress.
2024 Volume 47, Issue 5, Page(s) 1668–1684
Abstract: Drought stress is one of the main environmental factors limiting plant growth and development. Plants adapt to changing soil moisture by modifying root architecture, inducing stomatal closure, and inhibiting shoot growth. The AP2/ERF transcription factor ...
Abstract | Drought stress is one of the main environmental factors limiting plant growth and development. Plants adapt to changing soil moisture by modifying root architecture, inducing stomatal closure, and inhibiting shoot growth. The AP2/ERF transcription factor DREB2A plays a key role in maintaining plant growth in response to drought stress, but the molecular mechanism underlying this process remains to be elucidated. Here, it was found that overexpression of MdDREB2A positively regulated nitrogen utilisation by interacting with DRE cis-elements of the MdNIR1 promoter. Meanwhile, MdDREB2A could also directly bind to the promoter of MdSWEET12, which may enhance root development and nitrogen assimilation, ultimately promoting plant growth. Overall, this regulatory mechanism provides an idea for plants in coordinating with drought tolerance and nitrogen assimilation to maintain optimal plant growth and development under drought stress. |
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MeSH term(s) | Plant Proteins/genetics ; Plant Proteins/metabolism ; Droughts ; Plants, Genetically Modified/metabolism ; Promoter Regions, Genetic ; Sucrose/metabolism ; Gene Expression Regulation, Plant ; Stress, Physiological/genetics |
Chemical Substances | Plant Proteins ; Sucrose (57-50-1) |
Language | English |
Publishing date | 2024-01-28 |
Publishing country | United States |
Document type | Journal Article |
ZDB-ID | 391893-2 |
ISSN | 1365-3040 ; 0140-7791 |
ISSN (online) | 1365-3040 |
ISSN | 0140-7791 |
DOI | 10.1111/pce.14834 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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