Lactococcus chungangensis
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Bacilli, Order Lactobacillales, Family Streptococcaceae, Genus Lactococcus, Lactococcus chungangensis
Cho et al. 2008.
Description is based on a single isolate.
Gram-positive round to ovoid cells, grouped mostly in pairs or short chains. Nonmotie.
Endospores are not formed.
Colonies on GYEA plates are pinpoint, white and opaque, with a diameter of less than
0.3 mm. Facultatively anaerobic. Optimum growth at 30 ºC. Weak growth at 37 ºC. Can
grow at 4 ºC, but not at 40 ºC. Does not grow in 4% NaCl medium.
Isolated from a foam sample taken from an activated sludge wastewater treatment plant in Cheonan, Republic of Korea.
Undetermined.
  1. Sung-Lim Cho, Sun-Woo Nam, Jung-Hoon Yoon, Jung-Sook Lee, Ampaitip Sukhoom, and Wonyong Kim. Lactococcus
    chungangensis sp. nov., a lactic acid bacterium isolated from activated sludge foam. Int J Syst Evol Microbiol August 2008 58:
    1844-1849.
Tested in API CHL & API Strep:

Positive results for esculin hydrolysis, hippurate hydrolysis, leucine aminopeptidase, Voges–Proskauer test, acid production from:
N-acetylglucosamine, amygdalin, arbutin, cellobiose (weak), D-fructose, D-glucose, gentiobiose, D-mannose, mannitol, maltose,
salicin, starch, sucrose, trehalose (weak) & turanose (weak).

Negative results for  alkaline phosphatase, arginine dihydrolase, catalase, alpha-galactosidase, beta-glucuronidase, beta-
galactosidase, oxidase, pyrrolidonyl arylamidase, acid production from: galactose, lactose, melibiose, melezitose, methyl alpha-D-
glucoside, methyl alpha-D-mannoside, raffinose & D-xylose.
(c) Costin Stoica
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