{"title":"The gma-miR164a/GmNAC115 module participates in the adaptation of soybean to drought and salt stress by influencing reactive oxygen species scavenging","authors":"Huina Wan , Zhiyong Ni , Yi Wang , Yuehua Yu","doi":"10.1016/j.plaphy.2025.110191","DOIUrl":null,"url":null,"abstract":"<div><div>The regulatory modules formed by microRNAs and transcription factors (TFs) play important roles in plant stress responses and adaptations. However, the function and molecular mechanism of the <em>gma-miR164a</em>/GmNAC115 module in soybean responses to drought and salt stress remain unclear. This study revealed that the soybean <em>gma-miR164a</em>/GmNAC115 module is involved in the response to abiotic stress. Analysis of salt and drought tolerance in soybean hairy roots and transgenic <em>Arabidopsis</em> revealed that <em>gma-miR164a</em> plays a negative regulatory role in drought and salt stress responses, whereas its target GmNAC115 positively regulates plant tolerance to these stressors. DNA affinity purification sequencing was used to identify downstream target genes of the TF GmNAC115 in the whole genome. GmNAC115 could activate the expression of the downstream target genes <em>GmWRKY21</em>, <em>GmAPX6</em>, and <em>GmPOD2</em>5 by binding to NAC recognition sequence <em>cis</em>-acting elements in their promoters. Moreover, GmWRKY21, GmAPX6, and GmPOD25 play positive roles in the adaptation of soybean to drought and salt stress. In addition, GmWRKY21 positively regulates <em>GmAPX6</em> and <em>GmPOD25</em> expression by binding W-box <em>cis</em>-acting elements. In summary, these results suggest that the <em>gma-miR164a</em>/GmNAC115 module maintains cell reduction/oxidation homeostasis by removing reactive oxygen species, thereby improving soybean tolerance to drought and salt stress.</div></div>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":"227 ","pages":"Article 110191"},"PeriodicalIF":5.7000,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plant Physiology and Biochemistry","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0981942825007193","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
The regulatory modules formed by microRNAs and transcription factors (TFs) play important roles in plant stress responses and adaptations. However, the function and molecular mechanism of the gma-miR164a/GmNAC115 module in soybean responses to drought and salt stress remain unclear. This study revealed that the soybean gma-miR164a/GmNAC115 module is involved in the response to abiotic stress. Analysis of salt and drought tolerance in soybean hairy roots and transgenic Arabidopsis revealed that gma-miR164a plays a negative regulatory role in drought and salt stress responses, whereas its target GmNAC115 positively regulates plant tolerance to these stressors. DNA affinity purification sequencing was used to identify downstream target genes of the TF GmNAC115 in the whole genome. GmNAC115 could activate the expression of the downstream target genes GmWRKY21, GmAPX6, and GmPOD25 by binding to NAC recognition sequence cis-acting elements in their promoters. Moreover, GmWRKY21, GmAPX6, and GmPOD25 play positive roles in the adaptation of soybean to drought and salt stress. In addition, GmWRKY21 positively regulates GmAPX6 and GmPOD25 expression by binding W-box cis-acting elements. In summary, these results suggest that the gma-miR164a/GmNAC115 module maintains cell reduction/oxidation homeostasis by removing reactive oxygen species, thereby improving soybean tolerance to drought and salt stress.
期刊介绍:
Plant Physiology and Biochemistry publishes original theoretical, experimental and technical contributions in the various fields of plant physiology (biochemistry, physiology, structure, genetics, plant-microbe interactions, etc.) at diverse levels of integration (molecular, subcellular, cellular, organ, whole plant, environmental). Opinions expressed in the journal are the sole responsibility of the authors and publication does not imply the editors'' agreement.
Manuscripts describing molecular-genetic and/or gene expression data that are not integrated with biochemical analysis and/or actual measurements of plant physiological processes are not suitable for PPB. Also "Omics" studies (transcriptomics, proteomics, metabolomics, etc.) reporting descriptive analysis without an element of functional validation assays, will not be considered. Similarly, applied agronomic or phytochemical studies that generate no new, fundamental insights in plant physiological and/or biochemical processes are not suitable for publication in PPB.
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