MONOPTEROS isoform MP11ir plays a role during somatic embryogenesis in Arabidopsis thaliana.

ABSTRACT: Auxin is crucial for plant morphogenesis, including embryo development. Exogenous auxin application is necessary for inducing embryogenic responses in in vitro cultured explants of Arabidopsis (Arabidopsis thaliana) and other plants. Thus, components of auxin transport, signaling, and metabolism are key to somatic embryogenesis. AUXIN RESPONSE FACTOR (ARF) transcription factors bind to auxin response elements to control auxin-responsive gene expression and are often repressed by AUXIN/INDOLE-3-ACETIC ACIDs (Aux/IAAs). MONOPTEROS (MP)/ARF5 is especially important in the embryogenic transition, being highly expressed during somatic embryogenesis; its mutant cannot develop somatic embryos. The MP11ir transcript, an alternatively spliced variant of MP, produces a truncated protein missing the

SUBMITTER: Wojcikowska B 

PROVIDER: S-EPMC12671496 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature