Colonies are yellowish, very thin, slightly roughened, with irregular edges, spreading
to 1-6 mm in diameter. Some colonies may be gelatinous. Colonies are butyrous in
consistency and easily emulsifiable in water. Growth occurrs at 4-28 ºC (optimum, 18
ºC), at pH 4-11(optimum, 9-10) and in the presence of 0–1 % (w/v) NaCl. Unable to
grow at 30 or 37 ºC. Aerobic; no anaerobic growth on R2A agar. Violet pigment is not
Phylum Proteobacteria, Class Betaproteobacteria, Order Neisseriales, Family Chromobacteriaceae, Genus Iodobacter, Iodobacter
limnosediminis Su et al. 2013.
Gram-negative rods, 0.7 x 1.4-1.7 μm, occurring singly, in pairs and, occasionally, as
long filaments. Motile by means of one or more polar flagella and lateral flagella.
Isolated from an Arctic lake sediment.
Sensitive to chloromycetin, tobramycin, claforanvial, trobicin, amoxicillin, cefazolin, tetracycline, carbenicillin, cefotaxime, norfloxacin,
rifampicin, rocephin, vancomycin, amikacin, imipenem, cefepime, cefoperazone, roxithromycin, azithromycin, gentamicin, erythrocin,
cefuroxime, phosphonomycin, streptomycin, cefoxitin, piperacillin, nalidixic acid, ofloxacin, and medemycin.
Resistant to ceftazidime, penicillin G, neomycin, polymyxin B, ampicillin, lincomycin, clindamycin, oxacillin, aztreonam and bacitracin.
- Su W, Zhou Z, Jiang F, Chang X, Liu Y, Wang S, Kan W, Xiao M, Shao M, Peng F, Fang C. 2013. Iodobacter limnosediminis sp.
nov., isolated from Arctic lake sediment Int J Syst Evol Microbiol 63(4):1464-1470 doi:10.1099/ijs.0.039982-0.
- Euzeby (J.P.): List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet. Int. J. Syst. Bacteriol.,
1997, 47, 590-592. (List of Prokaryotic names with Standing in Nomenclature. http://www.bacterio.net).
Description is based on API 20 NE, API ZYM, API 50 CH and Biolog GN2 Microplate results.
Positive results for alkaline phosphatase, casein hydrolysis (weak reaction), catalase (weak reaction), egg-yolk reaction, esterase
(C4), esterase lipase, leucine arylamidase, naphthol-AS-BI-phosphohydrolase alpha-glucosidase, oxidase, acid production from: D-
fructose, D-glucose, potassium gluconate, D-mannose, N-acetylglucosamine, maltose, D-ribose, sucrose & trehalose.
Can utilize: arabinose, mannose, potassium gluconate, dextrin, N-acetyl-D-glucosamine, D-fructose, alpha-D-glucose, maltose, beta-
methyl-D-glucoside, sucrose, trehalose, pyruvic acid methyl ester, D-gluconic acid, L-glutamic acid & D-glucose-6-phosphate.
Negative results for acid phosphatase, arginine dihydrolase, cystine arylamidase, alpha-fucosidase, beta-glucosidase, alpha- and
beta-galactosidase, beta-glucuronidase, gelatin hydrolysis, indole production, lipase, alpha-mannosidase, protease, starch
hydrolysis, trypsin, alpha-chymotrypsin, urease, valine arylamidase, acid production from: D-arabinose, D-adonitol, amygdalin, D-
arabitol, arbutin, aesculin, cellobiose, dulcitol, erythritol, D- and L-fucose, D-galactose, gentiobiose, glycogen, glycerol, inulin, 2- and 5-
ketogluconate, lactose, D-lyxose, melibiose, melezitose, D-mannitol, raffinose, L-rhamnose, salicin, L-sorbose, D-sorbitol, starch, D-
tagatose, turanose, methyl-alpha-D-mannopyranoside, methyl-alpha-D-glucopyranoside, methyl-beta-D-xylopyranoside, xylitol, D-
No utilization of: mannitol, capric acid, adipic acid, malate, trisodium citrate, phenylacetic acid, alpha-cyclodextrin, glycogen, Tween 40,
Tween 80, adonitol, D-arabitol, cellobiose, i-erythritol, L-fucose, D-galactose, gentiobiose, myo-inositol, alphs-lactose, lactulose,
melibiose, D-psicose, raffinose, L-rhamnose, D-sorbitol, turanose, xylitol, succinic acid methyl ester, acetic acid, cis-aconitic acid,
citric acid, formic acid, D-galactonic acid lactone, D-galacturonic acid, D-glucosaminic acid, D-glucuronic acid, alpha-, beta- and
gamma-hydroxybutyric acid, p-hydroxyphenylacetic acid, itaconic acid, alpha-ketobutyric acid, alpha-ketoglutaric acid, alpha-ketovaleric
acid, DL-lactic acid, malonic acid, quinic acid, D-saccharic acid, sebacic acid, succinic acid, bromosuccinic acid, succinamic acid,
glucuronamide, L-alaninamide, D- and L-alanine, L-alanyl-glycine, L-asparagine, L-aspartic acid, glycyl-L-aspartic acid, glycyl-L-
glutamic acid, L-histidine, hydroxy-L-proline, L-leucine, L-ornithine, L-phenylalanine, L-proline, L-pyroglutamic acid, D- and L-serine,
L-threonine, DL-carnitine, gamma-aminobutyric acid, urocanic acid, inosine, uridine, thymidine, phenylethylamine, putrescine, 2-
aminoethanol, 2,3-butanedial, glycerol, DL-alpha-glycerol phosphate & alpha-D-glucose-1-phosphate.
(c) Costin Stoica