Open AccessStreptococcus parasanguis sp. nov., an atypical viridans Streptococcus from human clinical specimens
Author(s) -
Whiley Robert A.,
Fraser Hazel Y.,
Douglas C.W.I.,
Hardie Jeremy M.,
Williams Annette M.,
Collins Matthew D.
Publication year - 1990
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1990.tb04133.x
Subject(s) - viridans streptococci , biology , streptococcus , microbiology and biotechnology , ribosomal rna , 16s ribosomal rna , streptococcaceae , streptococcus oralis , homology (biology) , bacteria , genetics , gene , antibiotics
Molecular taxonomic studies were performed on ten strains of an unusual ‘viridans streptococcus’ that were originally isolated from human throats, blood and urine. On the basis of DNA‐DNA hybridization studies the strains formed a single homology group distinct from all recognized species of oral and viridans streptococci. 16S ribosomal RNA reverse transcriptase sequence studies confirmed the genealogical distinctiveness of the human strains. The results of the present study clearly demonstrate that the human strains represent a new species of the viridans group for which the name Streptococcus parasanguis sp. nov. is proposed. The type strain is ATCC 15912.