Valiya Kadavu, Abdul Kareem
- University of Sydney
Sammanfattning
Plants continuously produce lateral organs, such as leaves and flowers, from the shoot apical meristem (SAM). This process is guided by the accumulation of the plant hormone auxin and the polar localization of the efflux protein PIN-FORMED1 (PIN1). The transcription factor MONOPTEROS (MP) plays a crucial role in orienting PIN1 polarity, thereby facilitating auxin-driven organogenesis. In this study, we investigate genes downstream of MP that may regulate PIN1 polarity and organogenesis, discovering that the downstream vascular transcription factor TMO5 can promote PIN1 polarity convergence non-cell-autonomously and that TMO5 and its family members promote organ initiation in the SAM. By examining the role of auxin and cytokinin downstream of these genes, we provide evidence that the TMO5-like genes control PIN1 polarity and drive organogenesis by coordinating multiple hormonal signalling pathways.
Nyckelord
TMO5; Auxin; Cytokinin; Plant; Organogenesis
Publicerad i
Development
2025, volym: 152, nummer: 24, artikelnummer: dev205255
Utgivare: COMPANY BIOLOGISTS LTD
SLU författare
UKÄ forskningsämne
Utvecklingsbiologi
Publikationens identifierare
- DOI: https://doi.org/10.1242/dev.205255
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/145992