[Structural and functional characteristics of the photosynthetic apparatus of the mutants Arabidopsis thaliana (L.) Heynh].
The mutants Arabidopsis thaliana triplex and 58/15 with a high and low content of green pigments, respectively, and a higher rate of photosynthesis in comparison with the control form of Enkheim were studied. The significant differences in the structural organization of chloroplasts of both mutants were revealed. The two mutants are also characterized by a higher rate of ferricyanide reduction in the Hill reaction and ATP production via photophosphorylation. It was shown that mg2+, NH4Cl and (ADP + Pi) have different effects on the activity of these processes in different chloroplasts. On the whole the photosyntheic apparatus of mutants provides for a high efficiency of photosynthesis, while determines the survival of mutant 58/15 under pigment deficiency and increases the productivity of triplex mutant.