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. 2008 Jan;7(1):88-107.
doi: 10.1074/mcp.M700314-MCP200. Epub 2007 Oct 6.

Proteomics approach to identify dehydration responsive nuclear proteins from chickpea (Cicer arietinum L.)

Aarti Pandey  1 , Subhra Chakraborty, Asis Datta, Niranjan Chakraborty
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Free article

Proteomics approach to identify dehydration responsive nuclear proteins from chickpea (Cicer arietinum L.)

Aarti Pandey et al. Mol Cell Proteomics. 2008 Jan.
Free article

Abstract

Dehydration or water-deficit is one of the most important environmental stress factors that greatly influences plant growth and development and limits crop productivity. Plants respond and adapt to such stress by altering their cellular metabolism and activating various defense machineries. Mechanisms that operate signal perception, transduction, and downstream regulatory events provide valuable information about the underlying pathways involved in environmental stress responses. The nuclear proteins constitute a highly organized, complex network that plays diverse roles during cellular development and other physiological processes. To gain a better understanding of dehydration response in plants, we have developed a comparative nuclear proteome in a food legume, chickpea (Cicer arietinum L.). Three-week-old chickpea seedlings were subjected to progressive dehydration by withdrawing water and the changes in the nuclear proteome were examined using two-dimensional gel electrophoresis. Approximately 205 protein spots were found to be differentially regulated under dehydration. Mass spectrometry analysis allowed the identification of 147 differentially expressed proteins, presumably involved in a variety of functions including gene transcription and replication, molecular chaperones, cell signaling, and chromatin remodeling. The dehydration responsive nuclear proteome of chickpea revealed a coordinated response, which involves both the regulatory as well as the functional proteins. This study, for the first time, provides an insight into the complex metabolic network operating in the nucleus during dehydration.

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