They are unable to utilize D-maltose, D-trehalose, D-cellobiose, gentiobiose, sucrose, D-raffinose, ?-D-glucose, D-turanose, D-melibose, mannose, galactose, 3-methyle glucose, inosine, D-aspartic acid, glycyl-L-proline, L-alanine, L-arginine, L-serine, pectine, D-saccharic acid, p-hydroxy-phenylacetic acid, methyl pyruvate, citric acid, bromo-succinic acid, acetoacetic acid or propionic acid . " R . lentis " can grow in the presence of the antibiotic compounds lincomycin, tetrazolium violet and tetrazolium blue but not with 1 % sodium lactate, troleandomycin, lithium chloride, potassium tellurite or sodium butyrate.
