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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Kong, Fan-jiang Komatsu, Setsuko Oyanagi, Atsushi |
| Description | Author Affiliation: Kong FJ ( National Institute of Crop Science, Tsukuba 305-8518, Japan.) |
| Abstract | Cell wall proteins (CWPs) are important both for maintenance of cell structure and for responses to abiotic and biotic stresses. In this study, a destructive CWP purification procedure was adopted using wheat seedling roots and the purity of the CWP extract was confirmed by minimizing the activity of glucose-6-phosphate dehydrogenase, a cytoplasmic marker enzyme. To determine differentially expressed CWPs under flooding stress, gel-based proteomic and LC-MS/MS-based proteomic techniques were applied. Eighteen proteins were found to be significantly regulated in response to flood by gel-based proteomics and 15 proteins by LC MS/MS-based proteomics. Among the flooding down-regulated proteins, most were related to the glycolysis pathway and cell wall structure and modification. However, the most highly up-regulated proteins in response to flooding belong to the category of defense and disease response proteins. Among these differentially expressed proteins, only methionine synthase, β-1,3-glucanases, and β-glucosidase were consistently identified by both techniques. The down-regulation of these three proteins suggested that wheat seedlings respond to flooding stress by restricting cell growth to avoid energy consumption; by coordinating methionine assimilation and cell wall hydrolysis, CWPs played critical roles in flooding responsiveness. |
| ISSN | 00063002 |
| Journal | Biochimica et Biophysica Acta (BBA) - Reviews on Cancer |
| Issue Number | 1 |
| Volume Number | 1804 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2010-01-01 |
| Publisher Place | Netherlands |
| Access Restriction | Open |
| Subject Keyword | Cell Wall Chemistry Plant Proteins Isolation & Purification Triticum Genetics Chromatography, Liquid Down-Regulation Floods Nanotechnology Plant Roots Proteome Proteomics Seedling Growth & Development Stress, Physiological Tandem Mass Spectrometry Research Support, Non-U.S. Gov't Biochemistry |
| Content Type | Text |
| Resource Type | Article |
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