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Reduced photosystem II activity in the mutants. (A,B) Fv/Fm values for various leaf segments of plants grown in compost. (C) Immunochemical detection of the D1, D2, CP43, and CP47 subunits of PSII, the NdhI subunit of the NDH complex and the PsaD subunit of PSI. Coomassie-stained gel shows protein loading. Immunoblots were normalized by equal chlorophyll loading and all leaves were pooled for analysis. Plants were ~4–8 weeks old.
