Re-interpreting the role of endo-beta-mannanases as mannan endotransglycosylase/hydrolases in the plant cell wall.

ABSTRACT:

Background

Mannans are hemicellulosic polysaccharides in the plant primary cell wall with two major physiological roles: as storage polysaccharides that provide energy for the growing seedling; and as structural components of the hemicellulose-cellulose network with a similar function to xyloglucans. Endo-beta-mannanases are hydrolytic enzymes that cleave the mannan backbone. They are active during seed germination and during processes of growth or senescence. The recent discovery that endo-beta-mannanase LeMAN4a from ripe tomato fruit also has mannan transglycosylase activity requires the role of endo-beta-mannanases to be reinterpreted.

Aims

In this review, the role of endo-beta-mannanases as mannan endotransglycosylase/hydrolases (MTHs) in remodelling the plant cell wall

SUBMITTER: Schroder R 

PROVIDER: S-EPMC2710900 | biostudies-literature | 2009 Aug

REPOSITORIES: biostudies-literature