Ontology highlight
ABSTRACT:
ORGANISM(S): Arabidopsis thaliana
SUBMITTER: Yuhong Tang
PROVIDER: E-MEXP-2792 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
Proceedings of the National Academy of Sciences of the United States of America 20101206 51
Stems of dicotyledonous plants consist of an outer epidermis, a cortex, a ring of secondarily thickened vascular bundles and interfascicular cells, and inner pith parenchyma cells with thin primary walls. It is unclear how the different cell layers attain and retain their identities. Here, we show that WRKY transcription factors are in part responsible for the parenchymatous nature of the pith cells in dicotyledonous plants. We isolated mutants of Medicago truncatula and Arabidopsis thaliana wit ...[more]