Molecular analysis of cellulose biosynthesis in Arabidopsis |
| |
Authors: | T Arioli L Peng AS Betzner J Burn W Wittke W Herth C Camilleri H H?fte J Plazinski R Birch A Cork J Glover J Redmond RE Williamson |
| |
Affiliation: | Cooperative Research Centre for Plant Science, Australian National University, Post Office Box 475, Canberra, ACT 2601, Australia. |
| |
Abstract: | Cellulose, an abundant, crystalline polysaccharide, is central to plant morphogenesis and to many industries. Chemical and ultrastructural analyses together with map-based cloning indicate that the RSW1 locus of Arabidopsis encodes the catalytic subunit of cellulose synthase. The cloned gene complements the rsw1 mutant whose temperature-sensitive allele is changed in one amino acid. The mutant allele causes a specific reduction in cellulose synthesis, accumulation of noncrystalline beta-1,4-glucan, disassembly of cellulose synthase, and widespread morphological abnormalities. Microfibril crystallization may require proper assembly of the RSW1 gene product into synthase complexes whereas glucan biosynthesis per se does not. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|