Nodule organogenesis in Medicago truncatula requires local stage-specific auxin biosynthesis and transport.

ABSTRACT: The importance of auxin in plant organ development, including root nodule formation, is well known. The spatiotemporal distribution pattern of auxin during nodule development has been illustrated using auxin reporter constructs. However, our understanding of how this pattern is established and maintained remains elusive. Here, we studied how the auxin gradient is associated with the spatiotemporal expression patterns of known auxin biosynthesis and transport genes at different stages of nodule development in Medicago (Medicago truncatula). In addition, we examined the Medicago PIN-FORMED10 (MtPIN10) expression pattern and polar positioning on the cell membrane during nodule primordium development to investigate auxin flux. RNA interference and the application of auxin biosynthesis inhibito

SUBMITTER: Xiao TT 

PROVIDER: S-EPMC12002018 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature