Physiological Responses and Proteomic Analysis on the Cold Stress Responses of Annual Pitaya (Hylocereus spp.) Branches
文献类型： 外文期刊
作者： Zhou, Junliang 1 ; Wang, Lijuan 1 ; Xiao, Tujian 1 ; Wang, Zhuang 1 ; Mao, Yongya 1 ; Ma, Yuhua 1 ;
作者机构： 1.Guizhou Acad Agr Sci, Guizhou Fruit Inst, Guiyang 550006, Peoples R China
期刊名称：JOURNAL OF CHEMISTRY （ 影响因子：3.241； 五年影响因子：3.372 ）
ISSN： 2090-9063
年卷期： 2021 年 2021 卷
页码：
收录情况： SCI
摘要： In this study, the physiological response of the annual branches of three varieties of pitaya (Xianmi, Fulong, and Zihonglong) in cold stress was investigated using a multivariate statistical method. Physiological change results showed that cold stress could decrease the moisture and chlorophyll contents, on the contrary, increase the relative electric conductivity, the contents of malonadehyde, soluble protein, soluble sugar, and free proline, and enhance the enzyme activities of peroxidase, superoxide dismutase, and catalase. Meanwhile, a comparative proteomic approach was also conducted to clarify the cold resistance-related proteins and pathways in annual pitaya branches. Proteomics results concluded that the cold tolerance of annual pitaya branches could be improved by modulating autophagy. Therefore, we hypothesized that an increased autophagy ability may be an important characteristic of the annual pitaya branches in response to cold stress conditions. Our results provide a good understanding of the physiological responses and molecular mechanisms of the annual pitaya branches in response to cold stress.
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