Acropetal Auxin Transport Inhibition Is Involved in Indeterminate But Not Determinate Nodule Formation.

ABSTRACT: Legumes enter into a symbiotic relationship with nitrogen-fixing rhizobia, leading to nodule development. Two main types of nodules have been widely studied, indeterminate and determinate, which differ in the location of the first cell division in the root cortex, and persistency of the nodule meristem. Here, we compared the control of auxin transport, content, and response during the early stages of indeterminate and determinate nodule development in the model legumes Medicago truncatula and Lotus japonicus, respectively, to investigate whether differences in auxin transport control could explain the differences in the location of cortical cell divisions. While auxin responses were activated in dividing cortical cells during nodulation of both nodule types, auxin (indole-3-acetic acid) co

SUBMITTER: Ng JLP 

PROVIDER: S-EPMC5818462 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature