| Serratia symbiotica |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacteroidota, Class Gammaproteobacteria, Order Enterobacterales, Family Yersiniaceae, Genus Serratia, Serratia symbiotica
Sabri et al. 2011.
Sabri et al. 2011.
Gram-negative rods, 0.5 x 0.8-1.3 μm, with rounded ends. Motile. Non-spore-forming.
Colonies on nutrient agar are circular, non-pigmented, off-white and smooth and
shiny with entire margins. Grows at 10-30 ºC (optimum, 25 ºC), pH 6–8 (optimum, 7)
and with 0-4 % (w/v) NaCl. Grows axenically on a rich medium containing glucose,
casein peptone and yeast extract. Growth is optimal in aerobic conditions but growth
also occurs in microaerobic conditions.
shiny with entire margins. Grows at 10-30 ºC (optimum, 25 ºC), pH 6–8 (optimum, 7)
and with 0-4 % (w/v) NaCl. Grows axenically on a rich medium containing glucose,
casein peptone and yeast extract. Growth is optimal in aerobic conditions but growth
also occurs in microaerobic conditions.
It is a secondary endosymbiont associated symbiotically with a natural clone of Aphis fabae collected in Belgium. The bacterium lives
in the host body and can be found in some host tissues and fluids, mostly in the bacteriosome in the cytoplasm of the sheath
cells.
Sensitive to rifampicin, tetracycline and chloramphenicol, streptomycin, kanamycin, ampicillin, erythromycin and gentamicin.
Resistant to vancomycin.
in the host body and can be found in some host tissues and fluids, mostly in the bacteriosome in the cytoplasm of the sheath
cells.
Sensitive to rifampicin, tetracycline and chloramphenicol, streptomycin, kanamycin, ampicillin, erythromycin and gentamicin.
Resistant to vancomycin.
Undetermined.
- Sabri A, Leroy P, Haubruge E, Hance T, Frere I, Destain J, Thonart P. Isolation, pure culture and characterization of Serratia
symbiotica sp. nov., the R-type of secondary endosymbiont of the black bean aphid Aphis fabae. Int J Syst Evol Microbiol 2011; 61:
2081-2088.
(c) Costin Stoica
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| R E G N U M PROKARYOTAE |
Description is based mostly on API 20NE and API 50CH results.
Positive results for catalase, aesculin hydrolysis, Voges-Proskauer test, acid production (weakly) from N-acetylglucosamine,
aesculin, D-fructose, glucose, and sucrose.
Can assimilate glucose and N-acetylglucosamine.
Negative results for arginine dihydrolase, chitinase, caseinase, DNase, gelatinase, beta-galactosidase, H2S production, indole
production, lysine decarboxylase, lipase (Tween 80), lecithinase, methyl red test, ornithine decarboxylase, oxidase, tryptophan
deaminase, urease acid production from amygdalin D- and L-arabinose, D-adonitol, D- and L-arabitol, arbutin, D-cellobiose, dulcitol,
erythritol, D- and L-fucose D-galactose, gentibiose, glycogen, inositol, inulin, lactose, maltose, D-mannitol,methyl
beta-D-xylopyranoside, L-sorbose, L-rhamnose, methyl alpha-D-mannopyranoside, methyl alpha-D-glucopyranoside, xylitol, D-lyxose,
raffinose, ribose, salicin, sorbitol, starch, D-tagatose, D- and L-xylose, and the other API 50 CH tests.
No assimilation of caprate, citrate, gluconate, glycerol, malate, maltose, mannitol, mannose, adipate and phenylacetate.
Positive results for catalase, aesculin hydrolysis, Voges-Proskauer test, acid production (weakly) from N-acetylglucosamine,
aesculin, D-fructose, glucose, and sucrose.
Can assimilate glucose and N-acetylglucosamine.
Negative results for arginine dihydrolase, chitinase, caseinase, DNase, gelatinase, beta-galactosidase, H2S production, indole
production, lysine decarboxylase, lipase (Tween 80), lecithinase, methyl red test, ornithine decarboxylase, oxidase, tryptophan
deaminase, urease acid production from amygdalin D- and L-arabinose, D-adonitol, D- and L-arabitol, arbutin, D-cellobiose, dulcitol,
erythritol, D- and L-fucose D-galactose, gentibiose, glycogen, inositol, inulin, lactose, maltose, D-mannitol,methyl
beta-D-xylopyranoside, L-sorbose, L-rhamnose, methyl alpha-D-mannopyranoside, methyl alpha-D-glucopyranoside, xylitol, D-lyxose,
raffinose, ribose, salicin, sorbitol, starch, D-tagatose, D- and L-xylose, and the other API 50 CH tests.
No assimilation of caprate, citrate, gluconate, glycerol, malate, maltose, mannitol, mannose, adipate and phenylacetate.
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