PdWND3A, a wood-associated NAC domain-containing protein, affects lignin biosynthesis and composition in Populus.

ABSTRACT:

Background

Plant secondary cell wall is a renewable feedstock for biofuels and biomaterials production. Arabidopsis VASCULAR-RELATED NAC DOMAIN (VND) has been demonstrated to be a key transcription factor regulating secondary cell wall biosynthesis. However, less is known about its role in the woody species.

Results

Here we report the functional characterization of Populus deltoides WOOD-ASSOCIATED NAC DOMAIN protein 3 (PdWND3A), a sequence homolog of Arabidopsis VND4 and VND5 that are members of transcription factor networks regulating secondary cell wall biosynthesis. PdWND3A was expressed at higher level in the xylem than in other tissues. The stem tissues of transgenic P. deltoides overexpressing PdWND3A (OXPdWND3A) contained more vessel cells than that of wild-type plan

SUBMITTER: Yang Y 

PROVIDER: S-EPMC6849256 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature