Aquabacterium Kalmbach et al. 1999
General information
Description and emendation
The three proposed new species, A. citratiphilum, A. parvum and A. commune, were isolated from a drinking water biofilm in a house installation system at the Technische Universitat Berlin. All members of the genus are Gram-negative, rod-shaped bacteria and are motile by means of monotrichous flagella. They contain polyalkanoate and polyphosphate inclusion bodies and produce fibrillar matrix material. They are oxidase-positive, catalase-negative, display a micro-aerophilic growth behaviour and cannot grow by fermentation. Nitrate serves as an alternative electron acceptor, but not nitrite, chlorate, sulfate or iron(III). Manganese is not oxidized. All three species utilize Tweens 20, 40, 60 and 80, acetate, butyrate, valerate, capronate, caprylate, succinate, adipate, pimelate, azelate, sebacate, fumarate, β-hydroxybutyrate, malate and butanol. None of them utilizes any of the carbohydrates tested, nor is starch, aesculin, gelatin or DNA hydrolysed. The G+C content of the DNA ranges from 65 to 66 mol%. The type species is Aquabacteriuni commune, since it is the most widespread species in drinking water system biofilms.
1: Some species are non-motile, catalase-positive, and use nitrate or chlorate as an alternative electron acceptor. The major cellular fatty acids are summed feature 3 (comprising C16:1 ω7c and/or C16:1 ω6c), C18:1 ω7c and C16:0, and the major hydroxy fatty acid is C10:0 3-OH except that some species also contain C12:0 2-OH.
Subdivision(s)
MID | Name | Rank | Taxon ID |
---|---|---|---|
MSG073189 | 'Aquabacterium bacterium' | Species | |
MSG083839 | 'Aquabacterium sp.' | Species | |
M022503010001003 | Aquabacterium citratiphilum | Species | 70582 |
M022503010001001 | Aquabacterium commune | Species | 70586 |
M022503010001004 | Aquabacterium fontiphilum | Species | 450365 |
M022503010001005 | Aquabacterium limnoticum | Species | 708634 |
M022503010001006 | Aquabacterium olei | Species | 1296669 |
M022503010001007 | Aquabacterium parvum | Species | 70584 |
M022503010001002 | Aquabacterium tepidiphilum | Species | 2315841 |