Table 2.

Arabidopsis Mutants Implicated in IBA Metabolism.

Mutant	Gene product	Mutant phenotype	References
ech2	At1g76150 enoyl–CoA hydratase	IBA resistance	Strader et al., 2011
ibr1	At4g05530 putative short-chain dehydrogenase/ reductase	IBA resistance	Zolman et al., 2000, 2008
ibr3	At3g06810 putative acyl–CoA dehydrogenase	IBA resistance	Zolman et al., 2000, 2007
ibr10	At4g14430 putative enoyl–CoA hydratase	IBA resistance	Zolman et al., 2000, 2008
ped1	At2g33150 3-ketoacyl–CoA thiolase	IBA resistance; fatty acid β-oxidation defects	Hayashi et al., 1998; Zolman et al., 2000
UGT74E2OE	At1g05680 IBA glucosyltransferase	Overexpression leads to increased IBA glucosylation; increased shoot branching; abiotic stress resistance	Tognetti et al., 2010