Please use this identifier to cite or link to this item: http://hdl.handle.net/2381/14272
Title: Dual function of Arabidopsis glucan synthase-like genes GSL8 and GSL10 in male gametophyte development and plant growth.
Authors: Töller, A
Brownfield, L
Neu, C
Twell, D
Schulze-Lefert, P
First Published: Jun-2008
Citation: PLANT J, 2008, 54 (5), pp. 911-923
Abstract: Members of the glucan synthase-like (GSL) family are believed to be involved in synthesis of the cell-wall component callose in specialized locations throughout the plant. We identified two members of the Arabidopsis GSL gene family, GSL8 and GSL10, that are independently required for male gametophyte development and plant growth. Analysis of gsl8 and gsl10 mutant pollen during development revealed specific malfunctions associated with asymmetric microspore division. GSL8 and GSL10 are not essential for normal microspore growth and polarity, but play a role in entry of microspores into mitosis. Impaired function of GSL10 also leads to perturbation of microspore division symmetry, irregular callose deposition and failure of generative-cell engulfment by the cytoplasm of the vegetative cell. Silencing of GSL8 or GSL10 in transgenic lines expressing gene-specific dsRNAi constructs resulted in a dwarfed growth habit, thereby revealing additional and independent wild-type gene functions for normal plant growth.
DOI Link: 10.1111/j.1365-313X.2008.03462.x
eISSN: 1365-313X
Links: http://hdl.handle.net/2381/14272
Type: Journal Article
Appears in Collections:Published Articles, Dept. of Biology

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