Integrated Transcriptome and Metabolome Analysis of Rice Leaves Response to High Saline-Alkali Stress
文献类型： 外文期刊
作者： Qian, Guangtao 1 ; Wang, Mingyu 1 ; Wang, Xiaoting 1 ; Liu, Kai 2 ; Li, Ying 1 ; Bu, Yuanyuan 1 ; Li, Lixin 1 ;
作者机构： 1.Northeast Forestry Univ, Coll Life Sci, Key Lab Saline alkali Vegetat Ecol Restorat, Minist Educ, Harbin 150040, Peoples R China
2.Heilongjiang Acad Agr Sci, Harbin 150040, Peoples R China
3.Natl Ctr Technol Innovat Saline Alkali Tolerant Ri, Northeast Branch, Daqing 163411, Peoples R China
关键词： saline-alkali stress; rice; transcriptomics and metabolomics; glutathione metabolism; TCA cycle; linoleic acid metabolism
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.6； 五年影响因子：6.2 ）
ISSN：
年卷期： 2023 年 24 卷 4 期
页码：
收录情况： SCI
摘要： Rice (Oryza sativa) is one of the most important crops grown worldwide, and saline-alkali stress seriously affects the yield and quality of rice. It is imperative to elucidate the molecular mechanisms underlying rice response to saline-alkali stress. In this study, we conducted an integrated analysis of the transcriptome and metabolome to elucidate the effects of long-term saline-alkali stress on rice. High saline-alkali stress (pH > 9.5) induced significant changes in gene expression and metabolites, including 9347 differentially expressed genes (DEGs) and 693 differentially accumulated metabolites (DAMs). Among the DAMs, lipids and amino acids accumulation were greatly enhanced. The pathways of the ABC transporter, amino acid biosynthesis and metabolism, glyoxylate and dicarboxylate metabolism, glutathione metabolism, TCA cycle, and linoleic acid metabolism, etc., were significantly enriched with DEGs and DAMs. These results suggest that the metabolites and pathways play important roles in rice's response to high saline-alkali stress. Our study deepens the understanding of mechanisms response to saline-alkali stress and provides references for molecular design breeding of saline-alkali resistant rice.
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