文献类型： 外文期刊
作者： Li, Jin 1 ; Lou, Shanwei 2 ; Liang, Jing 1 ; Zhang, Jungao 1 ; Zhou, Xiaoyun 1 ; Li, Jie 2 ; Wang, Li 7 ; Zhai, Menghua 7 ; Duan, Liusheng 4 ; Lei, Bin 1 ;
作者机构： 1.Xinjiang Acad Agr Sci, Res Inst Nucl Technol & Biotechnol, Key Lab Crop Ecophysiol & Farming Syst Desert Oasi, Minist Agr & Xinjiang Uygur Autonomous Reg, Urumqi 830091, Peoples R China
2.Xinjiang Crop Chem Regulat Engn Technol Res Ctr &, Urumqi 830091, Peoples R China
3.Xinjiang Key Lab Crop Biotechnol & Xinjiang Uygur, State Key Lab Genet Improvement & Germplasm Innova, Urumqi 830091, Peoples R China
4.Minist Educ, State Key Lab Plant Physiol & Biochem, Engn Res Ctr PGR, Beijing 100193, Peoples R China
5.Coll Agron & Biotechnol, Beijing 100193, Peoples R China
6.China Agr Univ, Beijing 100193, Peoples R China
7.Xinjiang Agr Univ, Coll Agr, Urumqi 830091, Peoples R China
关键词： Cotton; Coronatine; Chilling stress; Plant hormone
期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：6.1； 五年影响因子：6.2 ）
ISSN： 0981-9428
年卷期： 2024 年 213 卷
页码：
收录情况： SCI
摘要： Coronatine, an analog of Jasmonic acid (JA), has been shown to enhance crop tolerance to abiotic stresses, including chilling stress. However, the underlying molecular mechanism remains largely unknown. In this study, we investigated the effect of Coronatine on cotton seedlings under low temperature using transcriptomic and metabolomics analysis. Twelve cDNA libraries from cotton seedlings were constructed, and pairwise comparisons revealed a total of 48,322 differentially expressed genes (DEGs). Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis identified the involvement of these unigenes in various metabolic pathways, including Starch and sucrose metabolism, Sesquiterpenoid and triterpenoid biosynthesis, Phenylpropanoid biosynthesis, alpha-Linolenic acid metabolism, ABC transporters, and Plant hormone signal transduction. Additionally, substantial accumulations of jasmonates (JAs), abscisic acid and major cell wall metabolites were observed. Transcriptome analysis revealed differential expression of regulatory genes, and qRT-PCR analysis confirmed the expression patterns of 9 selected genes. Co-expression analysis showed that the JA-responsive genes might form a network module with ABA biosynthesis genes or cell wall biosynthesis genes, suggesting the existence of a COR-JA-cellulose and COR-JA-ABA-cellulose regulatory pathway in cotton seedlings. Collectively, our findings uncover new insights into the molecular basis of coronatine-associated cold tolerance in cotton seedlings.
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