Author： Voiniciuc Cătălin Yang Bo Schmidt Maximilian Heinrich-Wilhelm Günl Markus Usadel Björn
Publisher： MDPI
E-ISSN： 1422-0067|16|2|3452-3473
ISSN： 1422-0067
Source： International Journal of Molecular Sciences, Vol.16, Iss.2, 2015-02, pp. : 3452-3473
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Abstract
For more than a decade, the Arabidopsis seed coat epidermis (SCE) has been used as a model system to study the synthesis, secretion and modification of cell wall polysaccharides, particularly pectin. Our detailed re-evaluation of available biochemical data highlights that Arabidopsis seed mucilage is more than just pectin. Typical secondary wall polymers such as xylans and heteromannans are also present in mucilage. Despite their low abundance, these components appear to play essential roles in controlling mucilage properties, and should be further investigated. We also provide a comprehensive community resource by re-assessing the mucilage phenotypes of almost 20 mutants using the same conditions. We conduct an in-depth functional evaluation of all the SCE genes described in the literature and propose a revised model for mucilage production. Further investigation of SCE cells will improve our understanding of plant cell walls.
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