Ontology highlight
ABSTRACT:
SUBMITTER: Ploense SE
PROVIDER: S-EPMC2674258 | biostudies-literature | 2009 May
REPOSITORIES: biostudies-literature
Ploense Sara E SE Wu Miin-Feng MF Nagpal Punita P Reed Jason W JW
Development (Cambridge, England) 20090501 9
Lateral organ emergence in plant embryos and meristems depends on spatially coordinated auxin transport and auxin response. Here, we report the gain-of-function iaa18-1 mutation in Arabidopsis, which stabilizes the Aux/IAA protein IAA18 and causes aberrant cotyledon placement in embryos. IAA18 was expressed in the apical domain of globular stage embryos, and in the shoot apical meristem and adaxial domain of cotyledons of heart stage embryos. Mutant globular embryos had asymmetric PIN1:GFP expre ...[more]