Streptococcus infantis LPB

Kang, Heeyoung, Kim, Haneul, Yi, Hana, Kim, Wonyong, Yoon, Jung-Hoon, Im, Wan-Taek, Kim, Myung Kyum, Seong, Chi Nam, Kim, Seung Bum, Cha, Chang-Jun & Joh, Che Ok Jeon and Kiseong, 2021, A report of 43 unrecorded bacterial species within the phyla Bacteroidetes and Firmicutes isolated from various sources from Korea in 2019, Journal of Species Research 10 (2), pp. 117-133 : 131

Description of Streptococcus infantis LPB 0309

Gram-stain-positive, facultative anaerobic, non-flagellated, coccus-shaped bacterium (0.4-0.5 μm diameter). Colonies grown on blood agar are cream, circular, entire, and convex. Oxidase activity is negative. In the API 20NE test, cells are positive for aesculin hydrolysis; β -galactosidase activity, but negative for nitrate reduction; indole production; glucose fermentation; gelatin hydrolysis; activity of arginine dihydrolase and urease; and assimilation of D- glucose, L- arabinose, D- mannose, D- mannitol, N -acetyl-glucosamine, D- maltose, potassium gluconate, capric acid, adipic acid, malic acid, trisodium citrate, and phenylacetic acid. Strain LPB0309 (= NIBRBAC000503348) was isolated from a human respiratory tract sample collected from Seoul, Republic of Korea (37°34 ʹ 47.3 ʺ N, 126°59 ʹ 56.6 ʺ E).