Plant Physiol.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
QUICK SEARCH:   [advanced]


     

Plant Physiology Preview
Published on April 22, 2005; 10.1104/pp.104.058248

This Article
Right arrow Full Text (Plant Physiology Preview (PDF))
Right arrow All Versions of this Article:
138/1/232    most recent
pp.104.058248v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Jiang, H.
Right arrow Articles by Wu, P.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Jiang, H.
Right arrow Articles by Wu, P.
Agricola
Right arrow Articles by Jiang, H.
Right arrow Articles by Wu, P.

Received December 14, 2004
Returned for revision February 25, 2005
Accepted March 15, 2005

A Novel Short-Root Gene Encodes a Glucosamine-6-Phosphate Acetyltransferase Required for Maintaining Normal Root Cell Shape in Rice

Huawu Jiang , Shaomin Wang , Lei Dang , Shoufeng Wang , Hanmin Chen , Yunrong Wu , Xinhang Jiang , and Ping Wu *

State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310029, People's Republic of China

* Corresponding author; email: clspwu{at}zju.edu.cn.

Glycosylation is a posttranslational modification occurring in many secreted and membrane-associated proteins in eukaryotes. It plays important roles in both physiological and pathological processes. Most of these protein modifications depend on UDP-N-acetylglucosamine. In this study, a T-DNA insertional rice (Oryza sativa) mutant exhibiting a temperature-sensitive defect in root elongation was isolated. Genetic and molecular analysis indicated that the mutated phenotype was caused by loss of function of a gene encoding a glucosamine-6-P acetyltransferase (designated OsGNA1), which is involved in de novo UDP-N-acetylglucosamine biosynthesis. The aberrant root morphology of the gna1 mutant includes shortening of roots, disruption of microtubules, and shrinkage of cells in the root elongation zone. Our observations support the idea that protein glycosylation plays a key role in cell metabolism, microtubule stabilization, and cell shape in rice roots.




This article has been cited by other articles:


Home page
 Plant Physiol.Home page
Y. Han, H. Cao, J. Jiang, Y. Xu, J. Du, X. Wang, M. Yuan, Z. Wang, Z. Xu, and K. Chong
Rice ROOT ARCHITECTURE ASSOCIATED1 Binds the Proteasome Subunit RPT4 and Is Degraded in a D-Box and Proteasome-Dependent Manner
Plant Physiology, October 1, 2008; 148(2): 843 - 855.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
A. Castilho, M. Pabst, R. Leonard, C. Veit, F. Altmann, L. Mach, J. Glossl, R. Strasser, and H. Steinkellner
Construction of a Functional CMP-Sialic Acid Biosynthesis Pathway in Arabidopsis
Plant Physiology, May 1, 2008; 147(1): 331 - 339.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
ASPB Publications PLANT PHYSIOLOGY THE PLANT CELL
Copyright © 2005 by the American Society of Plant Biologists