The putative endo-1,4-β-D-glucanase GLU3 regulates cellulose biosynthesis in barley roots.

ABSTRACT: The plant cell wall is a crucial structure that ensures plant cell integrity and facilitates environmental adaptation. Cellulose is the primary component of the plant cell wall. Its biosynthesis is orchestrated through the plasma membrane-localized multiprotein cellulose synthase complex, which includes a membrane-anchored endo-1,4-ß-glucanase. Here, we identified a barley (Hordeum vulgare) mutant with short roots resulting from repressed cell division and elongation, which we designated H. vulgare endo-β-1,4-D-glucanase 3-1 (hvglu3-1). HvGLU3 encodes a putative membrane-anchored endo-1,4-ß-glucanase that is highly conserved across plant species. The hvglu3-1 mutant exhibited a 60% reduction in cellulose content, accompanied by changes in hemicellulose and suberin levels and an altered lig

SUBMITTER: Guo L 

PROVIDER: S-EPMC12311300 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature