Rice transcription factor OsMADS57 regulates plant height by modulating gibberellin catabolism.

ABSTRACT:

Background

The MADS-box transcription factors mainly function in floral organ organogenesis and identity specification. Few research on their roles in vegetative growth has been reported.

Results

Here we investigated the functions of OsMADS57 in plant vegetative growth in rice (Oryza sativa). Knockdown of OsMADS57 reduced the plant height, internode elongation and panicle exsertion in rice plants. Further study showed that the cell length was remarkably reduced in the uppermost internode in OsMADS57 knockdown plants at maturity. Moreover, OsMADS57 knockdown plants were more sensitive to gibberellic acid (GA₃), and contained less bioactive GA₃ than wild-type plants, which implied that OsMADS57 is involved in gibberellin (GA) pathway. Expectedly, the tran

SUBMITTER: Chu Y 

PROVIDER: S-EPMC6538746 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature