CYCD3 D-type cyclins regulate cambial cell proliferation and secondary growth in Arabidopsis.

ABSTRACT: A major proportion of plant biomass is derived from the activity of the cambium, a lateral meristem responsible for vascular tissue formation and radial organ enlargement in a process termed secondary growth. In contrast to our relatively good understanding of the regulation of primary meristems, remarkably little is known concerning the mechanisms controlling secondary growth, particularly how cambial cell divisions are regulated and integrated with vascular differentiation. A genetic loss-of-function approach was used here to reveal a rate-limiting role for the Arabidopsis CYCLIN D3 (CYCD3) subgroup of cell-cycle genes in the control of cambial cell proliferation and secondary growth, providing conclusive evidence of a direct link between the cell cycle and vascular development. It is sh

SUBMITTER: Collins C 

PROVIDER: S-EPMC4507761 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature