Fusobacterium alocis sp. nov. and Fusobacterium sulci sp. nov. from the Human Gingival Sulcus

Abstract
Two new species, Fusobacterium alocis and Fusobacterium sulci, are described. They were isolated principally from subgingival areas associated with gingivitis or periodontitis. Strains of these species were nonreactive in the biochemical tests usually used and were differentiated most readily from each other and from other Fusobacterium species by patterns of soluble cellular proteins determined by polyacrylamide gel electrophoresis. The type strains of the species are F. alocis ATCC 35896 and F. sulci ATCC 35585.