Differential proteomic analysis of replanted Rehmannia glutinosa roots by iTRAQ reveals molecular mechanisms for formation of replant disease

作者：Mingjie Li, Yanhui Yang, Fajie Feng, Bao Zhang, Shuqiang Chen, Chuyun Yang, Li Gu, Fengqing Wang, Junyi Zhang, Aiguo Chen, Wenxiong Lin, Xinjian Chen, Zhongyi Zhang · 发表于：BMC Plant Biology · 年份：2017 · DOI：10.1186/s12870-017-1060-0 · 被引用次数：56 · 研究领域：Allelopathy and phytotoxic interactions、Plant tissue culture and regeneration、Plant Gene Expression Analysis

BACKGROUND: The normal growth of Rehmannia glutinosa, a widely used medicinal plant in China, is severely disturbed by replant disease. The formation of replant disease commonly involves interactions among plants, allelochemicals and microbes; however, these relationships remain largely unclear. As a result, no effective measures are currently available to treat replant disease. RESULTS: In this study, an integrated R. glutinosa transcriptome was constructed, from which an R. glutinosa protein library was obtained. iTRAQ technology was then used to investigate changes in the proteins in replanted R. glutinosa roots, and the proteins that were expressed in response to replant disease were identified. An integrated R. glutinosa transcriptome from different developmental stages of replanted and normal-growth R. glutinosa produced 65,659 transcripts, which were accurately translated into 47,818 proteins. Using this resource, a set of 189 proteins was found to be significantly differentially expressed between normal-growth and replanted R. glutinosa. Of the proteins that were significantly upregulated in replanted R. glutinosa, most were related to metabolism, immune responses, ROS generation, programmed cell death, ER stress, and lignin synthesis. CONCLUSIONS: By integrating these key events and the results of previous studies on replant disease formation, a new picture of the damaging mechanisms that cause replant disease stress emerged. Replant disease altered the metabolic bal...