Streptococcus peroris sp. nov. and Streptococcus infantis sp. nov., new members of the Streptococcus mitis group, isolated from human clinical specimens

被引：61

作者：

Kawamura, Y

Hou, XG

Todome, Y

Sultana, F

Hirose, K

Shu, SE

Ezaki, T

Ohkuni, H

机构：

[1] Gifu Univ, Sch Med, Dept Microbiol, Gifu 500, Japan

[2] Nippon Med Sch, Inst Gerontol, Dept Immunol & Infect Dis, Nakahara Ku, Kawasaki, Kanagawa 211, Japan

来源：

INTERNATIONAL JOURNAL OF SYSTEMATIC BACTERIOLOGY | 1998年 / 48卷

关键词：

alpha-haemolytic streptococci; the mitis group; S-peroris; S-infantis; 16S rRNA; DNA-DNA hybridization;

D O I：

10.1099/00207713-48-3-921

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Taxonomic studies were performed on eight strains of a-haemolytic streptococci that showed very low DNA-DNA hybridization similarity values with all established members of the mitis group of the genus Streptococcus. These strains were isolated from the tooth surface and pharynx of humans. 16S rRNA gene sequence analysis showed that these strains belonged to the mitis group, but that they fell into two new branches. DNA-DNA hybridization demonstrated two new similarity groups. From the results of the present study, the names Streptococcus peroris sp. nov. and Streptococcus infantis sp. nov. are proposed for these new groups. The type strains are 0-66(T) (= GTC 848(T) = JCM 10158(T)) and 0-122(T) (= GTC 849(T) = JCM 10157(T)), respectively.

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页码：921 / 927

页数：7

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