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Responses of differential metabolites and pathways to high temperature in cucumber anther

文献类型： 外文期刊

作者： Chen, Lin 1 ; Liang, Zhaojun 1 ; Xie, Shuyan 1 ; Liu, Wenrui 1 ; Wang, Min 1 ; Yan, Jinqiang 1 ; Yang, Songguang 1 ; Jiang, Biao 1 ; Peng, Qingwu 1 ; Lin, Yu'e 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Vegetable Res Inst, Guangzhou, Peoples R China

2.Guangdong Key Lab New Technol Res Vegetables, Guangzhou, Peoples R China

关键词： cucumber; high temperature stress; pollen fertility; metabolomics; starch and sucrose metabolism

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.6； 五年影响因子：6.8 ）

ISSN： 1664-462X

年卷期： 2023 年 14 卷

页码：

收录情况： SCI

摘要： Cucumber is one of the most important vegetable crops, which is widely planted all over the world. Cucumber always suffers from high-temperature stress in South China in summer. In this study, liquid chromatography-mass spectrometry (LC-MS) analysis was used to study the differential metabolites of cucumber anther between high-temperature (HT) stress and normal condition (CK). After HT, the pollen fertility was significantly reduced, and abnormal anther structures were observed by the paraffin section. In addition, the metabolomics analysis results showed that a total of 125 differential metabolites were identified after HT, consisting of 99 significantly upregulated and 26 significantly downregulated metabolites. Among these differential metabolites, a total of 26 related metabolic pathways were found, and four pathways showed significant differences, namely, porphyrin and chlorophyll metabolism; plant hormone signal transduction; amino sugar and nucleotide sugar metabolism; and glycine, serine, and threonine metabolism. In addition, pollen fertility was decreased by altering the metabolites of plant hormone signal transduction and amino acid and sugar metabolism pathway under HT. These results provide a comprehensive understanding of the metabolic changes in cucumber anther under HT.

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