Table II.

Chlorophyll fluorescence of PSII, redox state of P700 (PSI), and acceptor-side limitation in the wild type, atm3 mutants, and nfu2.1

atm3-2 leaves were too small for analysis. The values represent means of four measurements ± sd.

AllelePSIIPSI
Fv/FmΔA820/A820 (ΔI/I × 10−3)ΔA820/A820 Normalized to Chlorophyll per Leaf AreaAcceptor-Side Limitation Y(NA)
Wild type (Col-0)0.79 ± 0.0054.94 ± 0.654.94 ± 0.650.06 ± 0.02
atm3-3 (R612K)0.78 ± 0.0064.44 ± 0.775.21 ± 0.900.06 ± 0.02
atm3-4 (Δprom)0.79 ± 0.0074.67 ± 0.355.25 ± 0.390.06 ± 0.02
atm3-1 (ΔNBD)0.74 ± 0.0072.45 ± 0.114.72 ± 0.210.06 ± 0.01
nfu2.10.58 ± 0.0351.38 ± 0.522.66 ± 0.100.20 ± 0.04