An investigation of gram-negative tannin-protein complex degrading bacteria in fecal flora of various mammals.
Gram-negative tannin-protein complex degrading bacteria (T-PCDB) were first isolated from animals except for the koala. The occurrence of T-PCDB in feces of 15 species of mammals with different feeding habits was investigated. T-PCDB occurred in 7 of 54 horses but they could not be isolated from other mammals tested. These T-PCDB comprised less than 0.1% of the facultative anaerobic microflora in horse feces and it was much less than that previously reported in koala feces ( > 60%). A total of 7 T-PCDB fecal isolates showed a range of phenotypic diversities. They were all Gram-negative rods of various sizes and shapes including coccoidal rod. Although all produced tannase, no strain showed to have gallate decarboxylase. A total of 23 representative strains belonging to the family Pasteurellaceae were also tested for tannase production. Two strains, Haemophilus actinomycetemcomitans NIAH-10202T and Haemophilus segnis NIAH-10183T which were isolated from human oral cavity were detected positive for tannase.
Nemoto
K
K
Department of Microbiology, Tokushima University, School of Dentistry, Japan.
Osawa
R
R
Hirota
K
K
Ono
T
T
Miyake
Y
Y
D000818:Animals; D002415:Cats; D002417:Cattle; D004285:Dogs; D005243:Feces / Q000382:microbiology*; D006090:Gram-Negative Bacteria / Q000302:isolation & purification* / Q000378:metabolism; D016905:Gram-Negative Bacterial Infections / Q000175:diagnosis / Q000382:microbiology / Q000662:veterinary; D006168:Guinea Pigs; D006190:Haemophilus / Q000302:isolation & purification; D006736:Horses; D006801:Humans; D007614:Macropodidae; D008322:Mammals / Q000382:microbiology*; D051379:Mice; D009893:Opossums; D015661:Pasteurellaceae / Q000302:isolation & purification; D010641:Phenotype; D011817:Rabbits; D051381:Rats; D012756:Sheep; D013552:Swine; D013634:Tannins / Q000378:metabolism*
D013634:Tannins