Abstract
l-Arabinose (l-Ara) is a plant-specific sugar accounting for 5–10 % of cell wall saccharides in Arabidopsis (Arabidopsis thaliana) and rice (Oryza sativa). l-Ara occurs in pectic arabinan, rhamnogalacturonan II, arabinoxylan, arabinogalactan-protein (AGP), and extensin in the cell walls, as well as in glycosylated signaling peptides like CLAVATA3 and small glycoconjugates such as quercetin 3-O-arabinoside. This review focuses on recent advances towards understanding the generation of l-Ara and the metabolism of l-Ara-containing molecules in plants.Electronic supplementary materialThe online version of this article (doi:10.1007/s10265-016-0834-z) contains supplementary material, which is available to authorized users.
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