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    Proteome quantification of cotton xylem sap suggests the mechanisms of potassiumdeficiency-induced changes in plant resistance to environmental stresses

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    Author
    Zhang, Zhiyong; Chao, Maoni; Wang, Sufang; Bu, Jingjing; Tang, Juxiang; Li, Fei; Wang, Qinglian; Zhang, Bahong
    Abstract
    Proteomics was employed to investigate the molecular mechanisms of apoplastic response to potassium(K)-deficiency in cotton. Low K (LK) treatment significantly decreased the K and protein contents of xylem sap. Totally, 258 peptides were qualitatively identified in the xylem sap of cotton seedlings, of which, 90.31% were secreted proteins. Compared to the normal K (NK), LK significantly decreased the expression of most environmental-stress-related proteins and resulted in a lack of protein isoforms in the characterized proteins. For example, the contents of 21 Class Ш peroxidase isoforms under the LK were 6 to 44% of those under the NK and 11 its isoforms were lacking under the LK treatment; the contents of 3 chitinase isoforms under LK were 11-27% of those under the NK and 2 its isoforms were absent under LK. In addition, stress signaling and recognizing proteins were significantly down-regulated or disappeared under the LK. In contrast, the LK resulted in at least 2-fold increases of only one peroxidase, one protease inhibitor, one non-specific lipid-transfer protein and histone H4 and in the appearance of H2 A. Therefore, K deficiency decreased plant tolerance to environmental stresses, probably due to the significant and pronounced decrease or disappearance of a myriad of stress-related proteins.
    URI
    http://hdl.handle.net/10342/7980
    Date
    2016-02
    Citation:
    APA:
    Zhang, Zhiyong, & Chao, Maoni, & Wang, Sufang, & Bu, Jingjing, & Tang, Juxiang, & Li, Fei, & Wang, Qinglian, & Zhang, Bahong. (February 2016). Proteome quantification of cotton xylem sap suggests the mechanisms of potassiumdeficiency-induced changes in plant resistance to environmental stresses. , (), - . Retrieved from http://hdl.handle.net/10342/7980

    Display/Hide MLA, Chicago and APA citation formats.

    MLA:
    Zhang, Zhiyong, and Chao, Maoni, and Wang, Sufang, and Bu, Jingjing, and Tang, Juxiang, and Li, Fei, and Wang, Qinglian, and Zhang, Bahong. "Proteome quantification of cotton xylem sap suggests the mechanisms of potassiumdeficiency-induced changes in plant resistance to environmental stresses". . . (), February 2016. September 27, 2023. http://hdl.handle.net/10342/7980.
    Chicago:
    Zhang, Zhiyong and Chao, Maoni and Wang, Sufang and Bu, Jingjing and Tang, Juxiang and Li, Fei and Wang, Qinglian and Zhang, Bahong, "Proteome quantification of cotton xylem sap suggests the mechanisms of potassiumdeficiency-induced changes in plant resistance to environmental stresses," , no. (February 2016), http://hdl.handle.net/10342/7980 (accessed September 27, 2023).
    AMA:
    Zhang, Zhiyong, Chao, Maoni, Wang, Sufang, Bu, Jingjing, Tang, Juxiang, Li, Fei, Wang, Qinglian, Zhang, Bahong. Proteome quantification of cotton xylem sap suggests the mechanisms of potassiumdeficiency-induced changes in plant resistance to environmental stresses. . February 2016; (): . http://hdl.handle.net/10342/7980. Accessed September 27, 2023.
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