RhMED15a-like, a subunit of the Mediator complex, is involved in the drought stress response in Rosa hybrida.

ABSTRACT:

Background

Rose (Rosa hybrida) is a globally recognized ornamental plant whose growth and distribution are strongly limited by drought stress. The role of Mediator, a multiprotein complex crucial for RNA polymerase II-driven transcription, has been elucidated in drought stress responses in plants. However, its physiological function and regulatory mechanism in horticultural crop species remain elusive.

Results

In this study, we identified a Tail module subunit of Mediator, RhMED15a-like, in rose. Drought stress, as well as treatment with methyl jasmonate (MeJA) and abscisic acid (ABA), significantly suppressed the transcript level of RhMED15a-like. Overexpressing RhMED15a-like markedly bolstered the osmotic stress tolerance of Arabidopsis, as evidenced by increased germinati

SUBMITTER: Xie N 

PROVIDER: S-EPMC11059607 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature