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ORIGINAL RESEARCH article
Front. Plant Sci.
Sec. Plant Abiotic Stress
Volume 16 - 2025 | doi: 10.3389/fpls.2025.1514134
This article is part of the Research TopicFlourishing in Arid Realms: Exploring the Adaptation of Plant Functional Traits to Drought EnvironmentsView all 18 articles
AmMADS47 of Agropyron mongolicum negatively regulates drought tolerance in rice
Provisionally accepted
Bobo Fan1,2
Hushuai Nie1
Xiaolei Li1Yu Ma1Ersuo Lv3Jing Wu1Xiuxiu Yan1Yongqing Zhai1Yan Zhao1Jie Liu2Xiaohong Du1
Yanhong MA1*- 1Inner Mongolia Agricultural University, Hohhot, China
- 2Baotou Teachers' College, Baotou, China
- 3Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, Inner Mongolia Autonomous Region, China
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MADS-box transcription factors are important regulators of plant abiotic stress response. Despite the exceptional drought tolerance of Agropyron mongolicum, research on the MADS-box transcription factors governing simulate drought stress in this species are limited. In this study, overexpressing AmMADS47 in rice resulted in reduced drought tolerance. Transcriptome sequencing of wild-type (WT) and transgenic rice (OE) at 0 hours of drought and wild-type (WTD)and transgenic rice (OED) at 24 hours of osmotic stress revealed 21,521 differentially expressed genes (DEGs) totally. Further analysis of the top 20 enriched pathways of the DEGs between OE and WT, and between OED and WTD showed that phenylpropanoid biosynthesis and glutathione metabolism were the shared pathways most enriched in DEGs, and photosynthesis-antenna proteins were the shared pathway with the highest enrichment score and significance. Gene regulation in response to osmotic stress was analyzed in the three pathways, showing that, compared to WTD, OED exhibited up-regulation of a few drought-sensitive genes, while most genes positively regulating drought in WTD were down-regulated in OED. Collectively, these results highlight the crucial role of AmMADS47 in modulating the synthesis of key enzymes and the expression patterns of drought-responsive genes in three candidate pathways in rice, ultimately reducing drought resistance in rice. S 删除[BBF]: drought 删除[范菠菠]: are limited. In this study, overexpressing AmMADS47 in rice resulted in reduced drought tolerance. Transcriptome sequencing of wild-type (WT) and transgenic rice (OE) at 0 hours of drought and wild-type (WTD) and transgenic rice (OED) at 24 hours of drought stress revealed 21,521 differentially expressed genes (DEGs) totally. Further
Keywords: Agropyron mongolicum, Drought stress, AmMADS47, Reactive Oxygen Species, Transcriptional regulation
Received: 20 Oct 2024; Accepted: 10 Apr 2025.
Copyright: © 2025 Fan, Nie, Li, Ma, Lv, Wu, Yan, Zhai, Zhao, Liu, Du and MA. 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) or licensor 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.
* Correspondence: Yanhong MA, Inner Mongolia Agricultural University, Hohhot, China
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