Figure 12.

The Kinetics and Extent of Cytochrome b₆f Complex Degradation Depends on the Genotype of the Strain with Regard to Nitrogen Metabolism.

(A) Growth characteristics and accumulation of cytochrome f and LAO1 during nitrogen starvation of strains WT 4γ (NIT1 NIT2), nit1-137, nit4-104, nit2-124, and WT-S24 (nit1-137 nit2-124). Accumulation of the PSII subunit D1 is shown as a loading control. For nit1-137 NIT2 and nit4-104 NIT2 strains, the starvation was performed over 60 h to assess the stability of the cytochrome b₆f complex and the delayed and limited induction of LAO1.

(B) Change in photosynthetic electron transfer (Φ_PSII) in the same strains starved for nitrogen sources.