This Article Full Text Full Text (PDF) Supplemental Data All Versions of this Article: 18/2/340    most recent tpc.105.037713v1 Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (16) Citing Articles via Google Scholar Google Scholar Articles by Li, J. Articles by Deng, X. W. Search for Related Content PubMed PubMed Citation Articles by Li, J. Articles by Deng, X. W. Agricola Articles by Li, J. Articles by Deng, X. W.

A Rice Glutamate Receptor–Like Gene Is Critical for the Division and Survival of Individual Cells in the Root Apical Meristem^[W]

^a State Key Laboratory of Plant Physiology and Biochemistry, College of Life Science, Zhejiang University, Hangzhou 310029, China
^b National Institute of Biological Sciences, Zhongguancun Life Science Park, Beijing 102206, China
^c Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, Connecticut 06520-8104

³ To whom correspondence should be addressed. E-mail clspwu{at}zju.edu.cn or xingwang.deng{at}yale.edu; fax 86-571-86971323.

Glu receptors are known to function as Glu-activated ion channels that mediate mostly excitatory neurotransmission in animals. Glu receptor–like genes have also been reported in higher plants, although their function is largely unknown. We have identified a rice (Oryza sativa) Glu receptor–like gene, designated GLR3.1, in which mutation by T-DNA insertion caused a short-root mutant phenotype. Histology and DNA synthesis analyses revealed that the mutant root meristematic activity is distorted and is accompanied by enhanced programmed cell death. Our results supply genetic evidence that a plant Glu receptor–like gene, rice GLR3.1, is essential for the maintenance of cell division and individual cell survival in the root apical meristem at the early seedling stage.

This article has been cited by other articles:

				A. Leblanc, H. Renault, J. Lecourt, P. Etienne, C. Deleu, and E. Le Deunff Elongation Changes of Exploratory and Root Hair Systems Induced by Aminocyclopropane Carboxylic Acid and Aminoethoxyvinylglycine Affect Nitrate Uptake and BnNrt2.1 and BnNrt1.1 Transporter Gene Expression in Oilseed Rape Plant Physiology, April 1, 2008; 146(4): 1928 - 1940. [Abstract] [Full Text] [PDF]

				S. Shishkova, T. L. Rost, and J. G. Dubrovsky Determinate Root Growth and Meristem Maintenance in Angiosperms Ann. Bot., February 1, 2008; 101(3): 319 - 340. [Abstract] [Full Text] [PDF]

				N. R. Stephens, Z. Qi, and E. P. Spalding Glutamate Receptor Subtypes Evidenced by Differences in Desensitization and Dependence on the GLR3.3 and GLR3.4 Genes Plant Physiology, February 1, 2008; 146(2): 529 - 538. [Abstract] [Full Text] [PDF]

				B. G. Forde and P. J. Lea Glutamate in plants: metabolism, regulation, and signalling J. Exp. Bot., July 1, 2007; 58(9): 2339 - 2358. [Abstract] [Full Text] [PDF]

				H. Chen, V. J. Karplus, H. Ma, and X. W. Deng Plant Biology Research Comes of Age in China PLANT CELL, November 1, 2006; 18(11): 2855 - 2864. [Full Text] [PDF]

				Z. Qi, N. R. Stephens, and E. P. Spalding Calcium Entry Mediated by GLR3.3, an Arabidopsis Glutamate Receptor with a Broad Agonist Profile Plant Physiology, November 1, 2006; 142(3): 963 - 971. [Abstract] [Full Text] [PDF]

				P. Walch-Liu, L.-H. Liu, T. Remans, M. Tester, and B. G. Forde Evidence that L-Glutamate Can Act as an Exogenous Signal to Modulate Root Growth and Branching in Arabidopsis thaliana Plant Cell Physiol., August 1, 2006; 47(8): 1045 - 1057. [Abstract] [Full Text] [PDF]