Biopolymers and cell. 1995; 11 (1): 50 - 54

TEMPLATE ACTIVITY OF PLASMID-LIKE DNA OF MAIZE MITOCHONDRIA WITH RESPECT TO DNA SYNTHESIS

V. A. Podsosonny, Yu. M. Konstantinov, G. N. Lutsenko

The DNA synthesis has been studied in isolated maize mitochondria. Both high-molecular and plasmid-like mitochondrial DNA were shown to possess the template activity with respect to DNA synthesis in organella Linear (SI, S2, 2.3 and 2.1 kb) and circular (1.9 kb) plDNA exhibit higher activity as genetic templates than the mitochondrial chromosome. The circular plDNA of 1.9 kb have the greater replicative activity.