PtrIAA12-PtrARF8 Complex Regulates the Expression of <i>PtrSAUR17</i> to Control the Growth of Roots in <i>Poncirus trifoliata</i>.

ABSTRACT: The root system is an important determinant affecting the growth, adaptivity and stress resistance of citrus plants. Currently, the genetic regulatory network underlying root growth and development in citrus remains largely unknown. We report that a PtrAUX/IAA-ARF complex mediates the growth and development of roots in citrus through regulating the transcription of PtrSAUR. The auxin signaling pathway plays an essential role in regulating the growth and development of roots. In this study, we found that in citrus Poncirus trifoliata, PtrIAA12, encoding a canonical Aux/IAA protein, was highly expressed in the meristem and elongation zone of the root. Functional characterization showed that overexpression and silence of PtrIAA12 significantly enhanced and suppress

SUBMITTER: Wang X 

PROVIDER: S-EPMC12473356 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature