The Poplar GT8E and GT8F Glycosyltransferases are Functional Orthologs of Arabidopsis PARVUS Involved in Glucuronoxylan Biosynthesis

被引：39

作者：

Lee, Chanhui ^{[1
]}

Teng, Quincy ^{[2
]}

Huang, Wenlin ^{[2
]}

Zhong, Ruiqin ^{[1
]}

Ye, Zheng-Hua ^{[1
]}

机构：

[1] Univ Georgia, Dept Plant Biol, Athens, GA 30602 USA

[2] US EPA, Natl Exposure Res Lab, Athens, GA 30605 USA

来源：

PLANT AND CELL PHYSIOLOGY | 2009年 / 50卷 / 11期

关键词：

Glycosyltransferase Poplar Secondary wall biosynthesis Wood formation Xylan; REDUCING END-GROUPS; CELL-WALL FORMATION; XYLAN; ARABIDOPSIS-IRREGULAR-XYLEM8; ARABIDOPSIS-FRAGILE-FIBER8; IRREGULAR-XYLEM9; DEFICIENT; REVEALS; ENZYMES; MUTANT;

D O I：

10.1093/pcp/pcp131

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The poplar GT8E and GT8F glycosyltransferases have previously been shown to be associated with wood formation, but their roles in the biosynthesis of wood components are not known. Here, we show that PoGT8E and PoGT8F are expressed in vessels and fibers during wood formation and their encoded proteins are predominantly located in the endoplasmic reticulum. We demonstrate that expression of PoGT8E and PoGT8F in the Arabidopsis parvus mutant rescues the defects in the content and structure of glucuronoxylan conferred by the parvus mutation. These findings suggest that PoGT8E and PoGT8F are involved in glucuronoxylan biosynthesis during wood formation in poplar.

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页码：1982 / 1987

页数：6

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