Figure 8.

Physiological Characterization of ndhm-1, ndhn-1, and ndho-1 Arabidopsis Mutants.

(A) Transient chlorophyll fluorescence rise measured under nonactinic light after a 5-min illumination in wild-type (Col-0 or Ler) and ndhm-1, ndhn-1, and ndho-1 mutant lines. a.u., arbitrary units.

(B) CO₂ assimilation as a function of light intensity measured in the presence of 21% O₂ and 250 μL·L⁻¹ CO₂ in wild-type Col (closed circles), ndhm-1 (open circles), and ndho-1 (triangles) mutants.

(C) and (D) ETR and NPQ calculated from chlorophyll fluorescence parameters; experimental conditions and symbols are the same as in (B).