| Serratia microhaemolytica |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacteroidota, Class Gammaproteobacteria, Order Enterobacterales, Family Yersiniaceae, Genus Serratia, Serratia
microhaemolytica Wang et al. 2020.
microhaemolytica Wang et al. 2020.
Gram-negative rods, 0.4-1.1 x 1.3-2.8 μm. Non-motile. Non-spore-forming.
Colonies on sheep blood agar produce small hemolytic zones. Granulate-like growth
is observed when cultured in liquid medium. Growth occurs at 18-42 ºC, optimally at
32-37 ºC. Grows at pH 6-8 (optimally at pH 7 and in the presence of 0.5-3% (w/v) NaCl
(optimally in 0.5% NaCl). Grows well on BCYEa agar, sheep blood agar,
Haemophilus chocolate 2 agar, PVX agar and MH agar but weakly on MacConkey
agar. Facultatively aerobic. Growth is enhanced in the presence of CO2 .
is observed when cultured in liquid medium. Growth occurs at 18-42 ºC, optimally at
32-37 ºC. Grows at pH 6-8 (optimally at pH 7 and in the presence of 0.5-3% (w/v) NaCl
(optimally in 0.5% NaCl). Grows well on BCYEa agar, sheep blood agar,
Haemophilus chocolate 2 agar, PVX agar and MH agar but weakly on MacConkey
agar. Facultatively aerobic. Growth is enhanced in the presence of CO2 .
Isolated from a fresh water sample collected from an artificial lake in Guangzhou city, Guangdong province, China.
Undetermined.
- Wang J, Zheng ML, Jiao JY, Wang WJ, Li S, Xiao M, Chen C, Qu PH, Li WJ. Serratia microhaemolytica sp. nov., isolated from an
artificial lake in Southern China. Antonie Van Leeuwenhoek 2019; 112:1447-1456.
(c) Costin Stoica
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| R E G N U M PROKARYOTAE |
Positive results for DNase, beta-glucosidase, nitrate reduction, Voges-Proskauer, acid production from: glucose.
Contradictory results for esculin hydrolysis. In API 50 CH, the strain is only positive for the gluconate and glucose fermentation.
Negative results for arginine dihydrolase, acid and alkaline phosphatase, catalase, citrate utilization, esterase (C4), esterase lipase
(C8), indole production, gelatinase, H2S production, lysine decarboxylase, ONPG test, ornithine dihydrolase, oxidase, Tween 20, 40, 60
and 80 hydrolysis, urease, valine dihydrolase, acid production from: L-arabinose, D- and L-arabitol, adonitol, arbutin, cellobiose,
erythritol, glycogen, inositol, 2-ketogluconate, maltose, melezitose, melibiose, 1-methyl D-glucoside, N-acetylglucosamine, rhamnose,
raffinose, sucrose, and sorbitol.
Contradictory results for esculin hydrolysis. In API 50 CH, the strain is only positive for the gluconate and glucose fermentation.
Negative results for arginine dihydrolase, acid and alkaline phosphatase, catalase, citrate utilization, esterase (C4), esterase lipase
(C8), indole production, gelatinase, H2S production, lysine decarboxylase, ONPG test, ornithine dihydrolase, oxidase, Tween 20, 40, 60
and 80 hydrolysis, urease, valine dihydrolase, acid production from: L-arabinose, D- and L-arabitol, adonitol, arbutin, cellobiose,
erythritol, glycogen, inositol, 2-ketogluconate, maltose, melezitose, melibiose, 1-methyl D-glucoside, N-acetylglucosamine, rhamnose,
raffinose, sucrose, and sorbitol.
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