Aquaspirillum

Aquaspirillum

(ak'wă-spī-ril'ŭm),
A genus of motile, nonsporeforming, aerobic bacteria (family Spirillaceae) containing gram-negative, rigid, helical, or helically curved cells that are 0.2-1.5 mcm in diameter. Motile cells contain fascicles of flagella at one or both poles. Some species can grow anaerobically with nitrate instead of oxygen as the terminal electron acceptor. These organisms are chemoorganotrophic, possessing a strictly respiratory metabolism. They do not ferment carbohydrates; a few species can oxidize a limited variety of carbohydrates. The habitat of these organisms is fresh water. The type species is Aquaspirillum serpens.
[L. aqua, water, + spirillum, coil]
References in periodicals archive ?
5 a 4 [micron]m (Cuadro 1), pertenece al genero Eikenella de la familia Neisseriaceae de la subdivision [beta] proteobacterias; tambien representan a esta familia los generos Neisseria, Alysiella, Aquaspirillum, Kingella, Microvirgula, Simonsiella, Vogesella y el grupo Chromobacterium; ademas, es un habitante normal de la cavidad oral, del aparato respiratorio superior y de la superficie de la mucosa de los sistemas intestinal y genital, con un caracter de agente patogeno oportunista que se ha asociado con infecciones orales y no orales usualmente como parte de un consorcio microbiano.
Phylogenetic analysis of Aquaspirillum magnetotacticum using polymerase chain reaction-amplified 16S rRNA-specific DNA.