Phenotype of the var2 deg5 deg8 triple mutant and its photosensitivity. A, Photographs of 3-week-old Col, var2-1, deg5 deg8, and var2 deg5 deg8 plants. Bars = 5 mm. B, Fv/Fm in the mutants. Fv/Fm was measured in detached leaves of Col (circles), var2-1 (diamonds), deg5 deg8 (triangles), and var2 deg5 deg8 (squares). Values are means ± sd (n = 3). The asterisk indicates a value of P < 0.05 for a comparison between var2 and var2 deg5 deg8.