Early auxin responsive gene. Aux/IAA genes encode short-lived transcriptional factors that act to repress the expression of early auxin response genes when auxin concentrations are low.
Curator Comment
Relative mRNA levels of iaa3 are high in flowers and low in the callus. There is little change in the levels of mRNA levels when coleoptile segments of 3-day-old etiolated seedlings are treated with 30 micro mols of 2,4-D in comparison to auxin depleted controls.