文献类型： 外文期刊
作者： Zhao, Xu 1 ; Chen, Mingjie 1 ; Li, Zhiping 1 ; Zhao, Yan 1 ; Yang, Huanling 1 ; Zha, Lei 1 ; Yu, Changxia 1 ; Wu, Yuejin; 1 ;
作者机构： 1.Shanghai Acad Agr Sci, Inst Edible Fungi, Shanghai, Peoples R China
2.Gansu Acad Agr Engn & Technol, Inst Facil Agr & Equip, Wuwei, Peoples R China
3.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Tech Biol & Agr Engn, Hefei, Peoples R China
关键词： V; volvacea; metabonomics; low-temperature stress; LC-MS; differential metabolites
期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：5.64； 五年影响因子：6.32 ）
ISSN： 1664-302X
年卷期： 2020 年 11 卷
页码：
收录情况： SCI
摘要： Low temperature can lead to the autolysis ofVolvariella volvacea(V. volvacea), hindering its growth and preservation and severely reducing its yield and quality. This autolysis ofV. volvaceaat low temperature has been reported, but a metabolomics-based investigation of the underlying mechanisms of theV. volvacearesponse to low temperature has not been reported. Therefore, this study aimed to explore the changes, levels and expression patterns ofV. volvaceametabolites at low temperature. To understand the metabolic differences withinV. volvacea, two strains with different levels of low-temperature tolerance were treated in an ice bath at 0 degrees C for 2, 4, 8, and 10 h, while the blank control group was treated for 0 h. Metabonomics analysis was adopted to study the changes inV. volvaceain response to low temperature and the differences between the two different strains. Metabolic curves were analyzed at different time points by high-performance liquid chromatography-mass spectrometry (HPLC-MS). A total of 216 differential metabolites were identified and enriched in 39 metabolic pathways, mainly involving amino acid metabolism, carbohydrate metabolism, the TCA cycle, energy metabolism, etc. In this paper, we report the metabonomic analysis ofV. volvaceain response to low temperature and compare the differences in metabolite expression between the low-temperature-resistant strain VH3 and the low-temperature-sensitive strain V23. Finally, the putative low-temperature resistance mechanism of VH3 is revealed at the metabolic level. This study provides a theoretical basis for revealing the regulatory mechanism of low-temperature resistance inV. volvaceaand for future molecular breeding efforts.
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