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Genome-Wide Characterization of Soybean 1-Aminocyclopropane-1-carboxylic Acid Synthase Genes Demonstrates the Importance of GmACS15 in the Salt Stress Responses

文献类型： 外文期刊

作者： Cheng, Peng 1 ; Yu, Yi-Cheng 2 ; Wang, Si-Hui 1 ; Yang, Jun 1 ; Zhou, Run-Nan 4 ; Zhang, Xin-Ling 1 ; Liu, Chun-Yan 1 ; Zhang, Zhan-Guo 1 ; Yang, Ming-Liang 1 ; Chen, Qing-Shan 1 ; Wu, Xiao-Xia 5 ; Zhao, Ying 1 ;

作者机构： 1.Northeast Agr Univ, Natl Key Lab Smart Farm Technol & Syst, Key Lab Soybean Biol, Chinese Educ Minist, Harbin 150000, Peoples R China

2.Chinese Univ Hong Kong, Sch Life Sci, Sha Tin, Hong Kong, Peoples R China

3.Chinese Univ Hong Kong, State Key Lab Agrobiotechnol, Sha Tin, Hong Kong, Peoples R China

4.Heilongjiang Acad Agr Sci, Harbin 150000, Peoples R China

5.Heilongjiang Green Food Sci Res Inst, Harbin 150000, Peoples R China

关键词： Glycine max L.; 1-aminocyclopropane-1-carboxylic acid synthase; salt stress

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）

ISSN： 1661-6596

年卷期： 2025 年 26 卷 6 期

页码：

收录情况： SCI

摘要： ACS (1-aminocyclopropane-1-carboxylic acid synthase) is a member of the aminotransferase superfamily and a pyridoxal phosphate-dependent enzyme. ACS is also a rate-limiting enzyme for the biosynthesis of ethylene and has been linked with plant development, growth, and stress responses. However, information on ACS genes in the soybean genome is limited. In this study, we identified ACS genes in soybean through phylogenetic trees and conserved motifs and analyzed their cis-acting elements, subcellular localization, and expression patterns. Twenty-two members of the ACS family were identified in soybean, and they were divided into four subfamilies based on phylogenetic relationships. Moreover, the results of Arabidopsis mesophyll protoplasts showed that GmACS1, GmACS8, and GmACS15 were all localized in the nucleus and cell membrane. Cis-regulatory elements and qRT-PCR analyses indicated markedly increased levels of GmACS transcripts under hormone treatments and abiotic stress conditions (drought, alkalinity, and salt). In addition, under different abiotic stresses, the potential functional variations across the GmACS isoforms were mirrored in their differential expression. The analysis of transcriptional response to salinity indicated that salt stress might primarily be mediated by the GmACS15 gene. GmACS15 was also found to reduce salt-induced oxidative damage by modulating the ROS-scavenging system, cellular redox homeostasis, and maintaining intracellular Na+/K+ balance. The results of this investigation revealed the involvement of the ACS gene family in soybean stress-response pathways, including the identification of a potential target for enhancing salt tolerance in soybean.

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