Physiological and Proteomic Responses of Mulberry Trees (Morus alba. L.) to Combined Salt and Drought Stress
文献类型： 外文期刊
作者： Liu, Yan 1 ; Ji, Dongfeng 1 ; Turgeon, Robert 2 ; Chen, Jine 1 ; Lin, Tianbao 1 ; Huang, Jing 3 ; Luo, Jie 5 ; Zhu, Yan 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, Sericultural Res Inst, Hangzhou 310021, Zhejiang, Peoples R China
2.Cornell Univ, Sch Integrat Plant Sci, Plant Biol Sect, Ithaca, NY 14853 USA
3.Purdue Univ, Dept Agron, W Lafayette, IN 47907 USA
4.Purdue Univ, Purdue Ctr Plant Biol, W Lafayette, IN 47907 USA
5.Zhejiang Acad Agr Sci, Technol Support Ctr, Hangzhou 310021, Zhejiang, Peoples R China
关键词： mulberry; TMT proteomics; stressed roots; stressed leaves; sugar metabolism
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.923； 五年影响因子：6.132 ）
ISSN： 1422-0067
年卷期： 2019 年 20 卷 10 期
页码：
收录情况： SCI
摘要： Intensive investigations have been conducted on the effect of sole drought or salinity stress on the growth of plants. However, there is relatively little knowledge on how plants, particularly woody species, respond to a combination of these two stresses although these stresses can simultaneously occur in the field. In this study, mulberry, an economically important resource for traditional medicine, and the sole food of domesticated silkworms was subjected to a combination of salt and drought stress and analyzed by physiological methods and TMT-based proteomics. Stressed mulberry exhibited significant alteration in physiological parameters, including root/shoot ratio, chlorophyll fluorescence, total carbon, and ion reallocation. A total of 577 and 270 differentially expressed proteins (DEPs) were identified from the stressed leaves and roots, respectively. Through KEGG analysis, these DEPs were assigned to multiple pathways, including carbon metabolism, photosynthesis, redox, secondary metabolism, and hormone metabolism. Among these pathways, the sucrose related metabolic pathway was distinctly enriched in both stressed leaves and roots, indicating an important contribution in mulberry under stress condition. The results provide a comprehensive understanding of the adaptive mechanism of mulberry in response to salt and drought stress, which will facilitate further studies on innovations in terms of crop performance.
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