Volume 31 Issue 1
Jan.  2011
Turn off MathJax
Article Contents
Xiao Yuan, Wang Gaohong. Altered Gravity Induced Ca2+ Signal in Plant Cells[J]. Chinese Journal of Space Science, 2011, 31(1): 73-79. doi: 10.11728/cjss2011.01.073
Citation: Xiao Yuan, Wang Gaohong. Altered Gravity Induced Ca2+ Signal in Plant Cells[J]. Chinese Journal of Space Science, 2011, 31(1): 73-79. doi: 10.11728/cjss2011.01.073

Altered Gravity Induced Ca2+ Signal in Plant Cells

doi: 10.11728/cjss2011.01.073
More Information
  • Corresponding author: Liu Yongding
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2011-01-15
  • Altered gravity (microgravity and hypergravity) could affect many aspects of plants, such as growth, development, metabolism, ultrastructure, gene and protein expression. Ca2+ might play a role as a signal molecular in such graviresponses of plant. We supposed that the consequence of events occurring in plant cells under altered gravity were in the following order: gravisensing---changes in the cytoplasmic membrane surface tension---alterations in the physicochemical properties of the membrane---changes in membrane permeability, ion transport, membrane-bound enzyme activity etc--- Ca2+ signaling---metabolism rearrangements---physiological responses. Under altered gravity, the intracellular Ca2+ balance was redistributed and the increased cytosolic Ca2+ concentration was the key step of transforming altered gravity stimulation into intracellular Ca2+ signal. Ca2+ influx into the cytosol was via activation of Ca2+ selective ion channels and inhibition of Ca2+-ATPases. Following the increased cytosolic Ca2+ concentration, altered gravity induced a series of biological effects by regulating enzyme activity, with involvement of regulatory Ca2+ messenger system. This paper summarized the influences of altered gravity on plant intracellular Ca2+ balance and discussed the possible pathways of Ca2+ influx/efflux and Ca2+ signaling in plant cell biochemical regulation to altered gravity.

     

  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article Views(2877) PDF Downloads(1006) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return