Transcriptomic analysis of cork during seasonal growth highlights regulatory and developmental processes from phellogen to phellem formation.

ABSTRACT: The phellogen or cork cambium stem cells that divide periclinally and outwardly specify phellem or cork. Despite the vital importance of phellem in protecting the radially-growing plant organs and wounded tissues, practically only the suberin biosynthetic process has been studied molecularly so far. Since cork oak (Quercus suber) phellogen is seasonally activated and its proliferation and specification to phellem cells is a continuous developmental process, the differentially expressed genes during the cork seasonal growth served us to identify molecular processes embracing from phellogen to mature differentiated phellem cell. At the beginning of cork growth (April), cell cycle regulation, meristem proliferation and maintenance and processes triggering cell differentiation were upregulated

SUBMITTER: Fernandez-Pinan S 

PROVIDER: S-EPMC8187341 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature