Minhas, T The influence of haemin levels on growth and enzyme production by Porphyromonas gingivalis in continuous culture. [electronic resource] - Microbios 1993 - 105-14 p. digital Publication Type: Journal Article ISSN: 0026-2633 Subjects--Topical Terms: Acetylglucosaminidase--metabolismAlkaline Phosphatase--metabolismCulture MediaHemin--metabolismPorphyromonas gingivalis--drug effectsProtoporphyrins--pharmacologyTrypsin--metabolism