Coenzyme Q. Li. New data on the distribution of coenzyme Q in nature

The heart of the rhesus monkey was found to contain coenzyme Q 10. This experimental primate may serve as a model for studies of CoQ 10 as it may relate to human disease. Frog nerve tissue was also found to contain CoQ 10. Such tissue may be a useful system for researches on CoQ in nerve physiology. Only CoQ 10 was identified in human and rodent tumors grown in mice. The tumor strains were HAd-1, HS-1, and S-180. Cells of Ochromonas malhamensis contain CoQ 10. It is of interest that both man and this Ochromonas sp. specifically use both CoQ 10 and vitamin B 12. Contrary to an earlier report that a given Polyporous did not contain a CoQ, it has now been found that Polyporous schweinitzii contains both CoQ 9 and CoQ 10. The “J strain” of a PPLO ( Mycoplasma gallisepticum) is of current interest both in respect to its nutrition and its infectious characteristics; this PPLO strain did not contain either a member of either the CoQ or vitamin K groups.