Fig. 5.

IAA delayed flowering time by downregulating genes involved in flowering. a Proportion of bolting (i.e., percentage of plants had floral buds of 1 cm or larger). Plants were hydroponically grown in MS medium containing 5 nM and 25 nM IAA. b Relative rates of transcription of genes involved in flowering in Wt Arabidopsis at the early, intermediate (Int.), and late stages of flowering after one generation of culture. Plants were hydroponically grown in MS medium containing 5 nM IAA. All transcription levels are normalized to that of a housekeeping gene (actin 2). Values are means ± SDs (n = 6). Asterisk represents a significant difference (p < 0.05)