The abstract is read at the publisher; the summary is JClub's.
Quadruple knockout of OsIDD2/3/6/8 in rice roots disrupts cortical radial symmetry and reduces shoot-directed ion transport without impairing apoplastic barrier integrity or mineral uptake.
- Why it matters: Ground tissue architecture in rice roots supports aerenchyma formation and waterlogged adaptability, yet the transcriptional regulators coordinating its patterning and differentiation were largely unknown.
- What they did: The study identified INDETERMINATE DOMAIN (IDD) and SHORTROOT (SHR) family members as regulators, using OsIDD2/3/6/8 quadruple mutants and analyzing cortical organization, auxin distribution, and endodermal differentiation markers including OsCASP1 localization and lignin/suberin deposition.
- The result: OsIDD2/3/6/8 act independently of OsSHR1/2/3/4/5 for cortical symmetry, while OsSHR1/2/3/4/5 redundantly promote cortical periclinal divisions requiring OsIDD8, and both families coordinate endodermal differentiation.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.