Publications [#230015] of Zhen-Ming Pei

Papers Published

1. Wang, XQ; Yang, PF; Liu, Z; Liu, WZ; Hu, Y; Chen, H; Kuang, TY; Pei, ZM; Shen, SH; He, YK, Exploring the mechanism of Physcomitrella patens desiccation tolerance through a proteomic strategy., Plant physiology, vol. 149 no. 4 (April, 2009), pp. 1739-1750, [Wang, Xiao Qin; Liu, Wei Zhong; Hu, Yong; Kuang, Ting Yun; He, Yi Kun] Capital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R China. [Wang, Xiao Qin; Chen, Hui; Kuang, Ting Yun; Shen, Shi Hua] Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R, ISSN 0032-0889 [doi]
   (last updated on 2026/01/18)

   Abstract:
   The moss Physcomitrella patens has been shown to tolerate abiotic stresses, including salinity, cold, and desiccation. To better understand this plant's mechanism of desiccation tolerance, we have applied cellular and proteomic analyses. Gametophores were desiccated over 1 month to 10% of their original fresh weight. We report that during the course of dehydration, several related processes are set in motion: plasmolysis, chloroplast remodeling, and microtubule depolymerization. Despite the severe desiccation, the membrane system maintains integrity. Through two-dimensional gel electrophoresis and image analysis, we identified 71 proteins as desiccation responsive. Following identification and functional categorization, we found that a majority of the desiccation-responsive proteins were involved in metabolism, cytoskeleton, defense, and signaling. Degradation of cytoskeletal proteins might result in cytoskeletal disassembly and consequent changes in the cell structure. Late embryogenesis abundant proteins and reactive oxygen species-scavenging enzymes are both prominently induced, and they might help to diminish the damage brought by desiccation.

   Keywords:
   PLANT XEROPHYTA-SCABRIDA • MOSS POLYTRICHUM-FORMOSUM • ARABIDOPSIS-THALIANA • ENVIRONMENTAL-STRESS • FREEZING TOLERANCE • PROTEIN-SYNTHESIS • TORTULA-RURALIS • LOW-TEMPERATURE • ABSCISIC-ACID • BRYOPHYTES