No growth occurs in the presence of 3% NaCl, 1% oxgall or 1% glycine. Aerobic.
Psychrophilic, optimal growth temperature 5 ºC, growth temperature range is 0-20 ºC.
Can grow at pH 5.5-7.6. Yellow-green fluorescent pigments are not produced. No
brown pigments produced in media with 0.1% tyrosine or 0.1% tryptophan. No growth
on EMB agar, MacConkey agar, MR-VP broth, and Sellers agar. Can grow on TSI agar.
No alkaline reaction in litmus milk.
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Betaproteobacteria, Order Neisseriales, Family Chromobacteriaceae, Genus Aquaspirillum,
Aquaspirillum arcticum Butler et al. 1990.
Gram-negative, helical cells, 1.0 / 3.0-7.0 μm. Motile by a single polar flagellum.
Intracellular poly-beta-hydroxybutyrate is formed.
Isolated from Arctic sediment; other habitats unknown.
Undetermined.
  1. Tone Tonjum, 2005. Order IV. Neisseriales ord. nov. In: Bergey’s Manual of Systematic Bacteriology, Second edition, Vol two, part
    C The Alpha-, Beta-, Delta-, and Epsilonproteobacteria, George M. Garrity (Editor-in-Chief), pp 774-863.
  2. 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).
Positive results for catalase, DN-ase (positive at 31ºC but negative at 41 ºC), H2S production from 0.01% cystine in NA after 7 days,
oxidase, phosphatase, acid production from: fructose, glucose & ribose.

Negative results for casein hydrolysis, denitrification, esculin hydrolysis, gelatin hydrolysis (4 days incubation at 30 ºC), indole
production & starch hydrolysis.
Aquaspirillum arcticum
(c) Costin Stoica
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