title: Further characterization of Bacteroides endodontalis, an asaccharolytic black-pigmented Bacteroides species from the oral S cavity.
abstract: In this study, the isolation, characterization, and identification of Bacteroides endodontalis is described. It was found that this asaccharolytic black-pigmented Bacteroides species is associated with infected dental root canals and oral submucous abscesses. B. endodontalis could be differentiated from B. gingivalis by a negative direct hemagglutination test and the absence of trypsin and N-acetyl-beta-glucosamidase. B. endodontalis could be differentiated from B. asaccharolyticus by the absence of alpha-fucosidase, its inability to grow in an atmosphere of 95% N2-5% H2, and a growth requirement for menadione. Immune serum raised against B. endodontalis strain HG 370T agglutinated only B. endodontalis cells. Precautions for the isolation of B. endodontalis are discussed.
mesh_terms: D000118:Acetylglucosaminidase / Q000378:metabolism; D000372:Agglutination Tests; D001439:Bacteroides / Q000145:classification / Q000166:cytology / Q000201:enzymology / Q000302:isolation & purification* / Q000502:physiology; D001442:Bacteroides Infections / Q000382:microbiology*; D001482:Base Composition; D002245:Carbon Dioxide / Q000494:pharmacology; D004269:DNA, Bacterial / Q000032:analysis; D003786:Dental Pulp Cavity / Q000382:microbiology*; D006386:Hemagglutination Tests; D006801:Humans; D009693:Nucleic Acid Hybridization; D010482:Periapical Abscess / Q000382:microbiology*; D010648:Phenylacetates / Q000494:pharmacology; D010858:Pigmentation; D014357:Trypsin / Q000494:pharmacology; D014812:Vitamin K / Q000494:pharmacology; D005644:alpha-L-Fucosidase / Q000494:pharmacology
chemical_list: D004269:DNA, Bacterial; D010648:Phenylacetates; D014812:Vitamin K; D002245:Carbon Dioxide; D005644:alpha-L-Fucosidase; D000118:Acetylglucosaminidase; D014357:Trypsin