Figure 7.

Phenotypes of GA Biosynthesis and Receptor Mutants.

(A) 40-day-old plants. Reproduced from Mitchum et al. (2006) with permission from Blackwell Publishing.

(B) The triple gid1 mutant is more severely dwarfed than ga1–3. Reprinted from Griffiths et al. (2006).

(C) 24-day-old plants. Reproduced from Hu et al. (2008). Lacking GA3ox3 and/or GA3ox4 functions in the ga3ox1 mutant background do not alter rosette and stem growth because GA3ox3 and GA3ox4 are mainly expressed in flowers and/or siliques. All mutants are homozygous for the labeled genotype(s).