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Isolation and ultrastructure of Bacteroides sp. with external cell‐wall layer (S‐layer) in periapical osteitis
Author(s) -
RANTA HELENA,
LOUNATMAA KARI,
HAAPASALO MARKUS,
RANTA KARI
Publication year - 1983
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/j.1600-0722.1983.tb00846.x
Subject(s) - ultrastructure , osteitis , layer (electronics) , bone canaliculus , isolation (microbiology) , cell wall , chemistry , anatomy , microbiology and biotechnology , biology , materials science , composite material , osteomyelitis , biochemistry , immunology
– Bacteroides sp. was isolated in human periapical osteitis and shown to be biochemically closely related to B. ruminicola ssp. brevis and B. capillus. Electron microscopic examination revealed an external cell‐wall layer (S‐layer). The fractionation of cells by various methods gave partially purified sheets corresponding to the observed layer with a hexagonal molecular arrangement.