Growth Stimulating Effect Of Pyrroloquinoline Quinone For Microorganisms
Published 1989 · Chemistry
Two types of growth stimulating effect of pyrroloquinoline quinone (PQQ) for microorganisms are known. The type I PQQ effect was observed in a symbiotic polyvinyl alcohol (PVA) degradation in which one species of Pseudomonas excretes PQQ which in turn enables the other species to grow on PVA (Shimao et al., 1984). The latter can produce a carbon source for the former only when PQQ is supplied. Thus, PQQ is regarded as the essential growth factor of the PVA-degrading bacteria when grown on PVA but not on other usual carbon sources.