| Arthrobacter echini |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinomycetota, Class Actinomycetes, Order Micrococcales, Family Micrococcaceae, Genus Arthrobacter, Arthrobacter echini
Lee et al. 2016.
Species description is based on a single isolate.
Lee et al. 2016.
Species description is based on a single isolate.
Gram-positive cocci, 1.2–2.2 µm, not showing a rod-coccus cycle. Non-motile. Non-
spore-forming.
spore-forming.
Colonies on Marine Agar are circular, convex with an entire margin and dark pink with
a diameter of 0.1-0.15 mm after 72 hours of incubation at 20 ºC. Growth occurs
at 10-25 ºC (optimally at 20 ºC), at pH 6-9 (optimally at pH 7) and in the presence of
0-8 % (w/v) NaCl (optimally in 1% NaCl). Strictly aerobic.
a diameter of 0.1-0.15 mm after 72 hours of incubation at 20 ºC. Growth occurs
at 10-25 ºC (optimally at 20 ºC), at pH 6-9 (optimally at pH 7) and in the presence of
0-8 % (w/v) NaCl (optimally in 1% NaCl). Strictly aerobic.
Isolated from the gut of purple sea urchin Heliocidaris crassispina collected from the coastal waters of the Korean island Dokdo.
Undetermined.
- Lee JY, Hyun DW, Soo Kim P, Sik Kim H, Shin NR, Yun JH, Jung MJ, Kim MS, Woong Whon T, Bae JW. Arthrobacter echini sp. nov.,
isolated from the gut of a purple sea urchin, Heliocidaris crassispina. Int J Syst Evol Microbiol 2016; 66:1887-1893.
Positive results for acid phosphatase, catalase, esterase (C4), esterase, lipase (C8), alpha-glucosidase, leucine arylamidase,
naphthol-AS-BI-phosphohydrolase, trypsin, urease, and valine arylamidase.
Can utilize (Biolog GP2) dextrin, Tween 80, D-fructose, cellobiose, D-gluconic acid, alpha-D-glucose, maltose, maltotriose,
D-mannose, palatinose, sucrose, turanose, acetic acid, gamma-hydroxybutyric acid, alpha-ketoglutaric acid, lactamide, monomethyl
succinate, propionic acid, pyruvic acid, succinamic acid, N-acetyl-L-glutamic acid, glycerol, adenosine, inosine, uridine and
adenosine-5'-monophosphate.
Negative results for alkaline phosphatase, arginine dyhydrolase, alpha-chymotrypsin, cystine arylamidase, alpha-fucosidase, gelatin
hydrolysis, alpha- and beta-galactosidase, beta-glucosidase, beta-glucuronidase, N-acetyl-beta-glucosaminidase, indole production,
lipase (C14), alpha-mannosidase, oxidase, and fermentation of glucose.
No utilization of Tween 40, D-mannitol, D-sorbitol, D-psicose, p-hydroxyphenylacetic acid, pyruvatic acid methyl ester, L-alaninamide,
DL-alpha-glycerol phosphate, arbutin, D-ribose, L-pyroglutamic acid, L-serine, alpha- and beta-cyclodextrin, glycogen, inulin, mannan,
N-acetyl-D-glucosamine, N-acetyl-beta-D-mannosamine, amygdalin, L-arabinose, D-arabitol, L-fucose, D-galacturonic acid,
myo-inositol, alpha-lactose, lactulose, melezitose, melibiose, methyl alpha-D-galactoside, methyl beta-D-galactoside, 3-methyl
glucose, methyl alpha-D-glucoside, methyl beta-D-glucoside, methyl alpha-D-mannoside, L-rhamnose, salicin, sedoheptulosan,
stachyose, D-tagatose, xylitol, D-xylose, alpha- and beta-hydroxybutyric acid, alpha-ketovaleric acid, D-lactic acid methyl ester, D- and
L-alanine, L-asparagine, putrescine, 2,3-butanediol, 2'-deoxyadenosine, thymidine, thymidine-5'-monophosphate,
uridine-5'-monophosphate, alpha-D-glucose-1-phosphate and D-glucose-6-phosphate.
naphthol-AS-BI-phosphohydrolase, trypsin, urease, and valine arylamidase.
Can utilize (Biolog GP2) dextrin, Tween 80, D-fructose, cellobiose, D-gluconic acid, alpha-D-glucose, maltose, maltotriose,
D-mannose, palatinose, sucrose, turanose, acetic acid, gamma-hydroxybutyric acid, alpha-ketoglutaric acid, lactamide, monomethyl
succinate, propionic acid, pyruvic acid, succinamic acid, N-acetyl-L-glutamic acid, glycerol, adenosine, inosine, uridine and
adenosine-5'-monophosphate.
Negative results for alkaline phosphatase, arginine dyhydrolase, alpha-chymotrypsin, cystine arylamidase, alpha-fucosidase, gelatin
hydrolysis, alpha- and beta-galactosidase, beta-glucosidase, beta-glucuronidase, N-acetyl-beta-glucosaminidase, indole production,
lipase (C14), alpha-mannosidase, oxidase, and fermentation of glucose.
No utilization of Tween 40, D-mannitol, D-sorbitol, D-psicose, p-hydroxyphenylacetic acid, pyruvatic acid methyl ester, L-alaninamide,
DL-alpha-glycerol phosphate, arbutin, D-ribose, L-pyroglutamic acid, L-serine, alpha- and beta-cyclodextrin, glycogen, inulin, mannan,
N-acetyl-D-glucosamine, N-acetyl-beta-D-mannosamine, amygdalin, L-arabinose, D-arabitol, L-fucose, D-galacturonic acid,
myo-inositol, alpha-lactose, lactulose, melezitose, melibiose, methyl alpha-D-galactoside, methyl beta-D-galactoside, 3-methyl
glucose, methyl alpha-D-glucoside, methyl beta-D-glucoside, methyl alpha-D-mannoside, L-rhamnose, salicin, sedoheptulosan,
stachyose, D-tagatose, xylitol, D-xylose, alpha- and beta-hydroxybutyric acid, alpha-ketovaleric acid, D-lactic acid methyl ester, D- and
L-alanine, L-asparagine, putrescine, 2,3-butanediol, 2'-deoxyadenosine, thymidine, thymidine-5'-monophosphate,
uridine-5'-monophosphate, alpha-D-glucose-1-phosphate and D-glucose-6-phosphate.
(c) Costin Stoica
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