The Bro1-like domain-containing protein, AtBro1, modulates growth and abiotic stress responses in Arabidopsis.

ABSTRACT: Abscisic acid (ABA) affects plant physiology by altering gene expression, enabling plants to adapt to a wide range of environments. Plants have evolved protective mechanisms to allow seed germination in harsh conditions. Here, we explore a subset of these mechanisms involving the AtBro1 gene, which encodes one of a small family of poorly characterised Bro1-like domain-containing proteins, in Arabidopsis thaliana plants subjected to multiple abiotic stresses. AtBro1 transcripts were upregulated by salt, ABA and mannitol stress, while AtBro1-overexpression lines demonstrated robust tolerance to drought and salt stress. Furthermore, we found that ABA elicits stress-resistance responses in loss-of-function bro1-1 mutant plants and AtBro1 regulates drought res

SUBMITTER: Mehdi SMM 

PROVIDER: S-EPMC10213323 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature