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Dec 15, 2021

Aquaspirillum (ak’wă-spī-ril’ŭm) is a genus of helical aerobic bacteria in the family Neisseriaceae that lives in freshwater.

Genus of helical aerobic bacteria

Scientific classification
Domain: Bacteria
Phylum: Proteobacteria
Class: Betaproteobacteria
Order: Neisseriales
Family: Neisseriaceae
Genus: Aquaspirillum
Hylemon, 1973

see text


MicrovirgulaPaturaeu, 1998

. . . Aquaspirillum . . .

In 1832, the genus Spirillum was created and encompassed an array of helical bacteria. In 1957, the large genus was reviewed and narrowed to include 19 species based on morphology and a few other physiological characteristics. The genus Aquaspirillum was not created until 1973, when another review of Spirillum led to the division of the genus into Aquaspirillum, Oceanospirillum, and Spirillum.[1]

The genus’ name is a combination of several words. Aqua comes from Latin, meaning water; speîra comes from Greek, meaning a spiral; spirillum come from Neo-Latin, meaning a small spiral. Put together, the genus’ name means “small water spiral.”[2]

The new genus comprised the following 13 species when it was created:

The following five species were added to Aquaspirillum in the years after its creation:[3]

. . . Aquaspirillum . . .

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. . . Aquaspirillum . . .