Structural diversity, functions and biosynthesis of xyloglucans in angiosperm cell walls

Yves S.Y. Hsieh, Maree Paxton, Carsten P. Ade, Philip J. Harris

研究成果: 雜誌貢獻文章同行評審

9 引文 斯高帕斯(Scopus)

摘要

Xyloglucans occur in the primary cell walls of all angiosperms where they are thought to have a structural role and be involved in the control of cell expansion. They also occur in the thick, non-lignified secondary cell walls of seeds of some species of eudicotyledons where they serve as reserve carbohydrates. The xyloglucans in the primary cell walls of most eudicotyledons have similar structures with side chains containing galactose and fucose. However, in one group of eudicotyledons, the asterids, there is considerable structural variability in the xyloglucans, with many containing arabinose. There is also variability in the xyloglucans of the monocotyledons, with those in the family Poaceae containing no fucose and only small proportions of galactose. The xyloglucans of the thick, secondary cell walls of seeds are similar to those in the primary walls of most eudicotyledons, but contain no fucose. The functional significance of these structural variations is unknown. A number of genes and their encoded glycosyltransferases have been identified as being involved in the biosynthesis of the xyloglucans of the model eudicotyledon Arabidopsis thaliana.

原文英語
頁(從 - 到)187-196
頁數10
期刊New Zealand Journal of Forestry Science
39
發行號1
出版狀態已發佈 - 2009
對外發佈

ASJC Scopus subject areas

  • 森林科學
  • 化學工程 (全部)
  • 生態學
  • 植物科學

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