Figure 5.

Log2 expression of AOX1a (At3g22370) and LHCB2.4 (At3g27690) in 16-days-old seedlings of Col:Luc (black bars), abi4 (open bar), rao1.1 (pale grey), rao1.2 (dark grey), abi4.1rao1.1 (vertical stripes) and abi4.1rao1.2 (diagonal stripes) following 3 h treatment with 50 µM DCMU, 100 µM DBMIB and exposure to high light intensity (1000 μmol m⁻² s⁻¹). The expression was compared with untreated seedlings for each genotype and the relative expression was calculated using PP2a (At1g13320) as a reference gene. Data represent mean (±s.d.) from at least three independent biological replicates. LHCB2.4 expression was significantly different in the abi4.1rao1.1 and abi4.1rao1.2 mutants compared with the abi4, rao1.1 and rao1.2 single mutants as demonstrated by Student's t-test: ***p < 0.001, **p < 0.005.