Spirillum | |
---|---|
Spirillum | |
Scientific classification | |
Domain: | Bacteria |
Phylum: | Pseudomonadota |
Class: | Betaproteobacteria |
Order: | Nitrosomonadales |
Family: | Spirillaceae |
Genus: |
Spirillum Ehrenberg, 1832 emend. Podkopaeva et al., 2009 |
Species | |
Spirillum is a genus of Gram-negative bacteria in the family Spirillaceae of the Nitrosomonadales of the Betaproteobacteria. [1] [2] [3] There are two species of Spirillum with validly or effectively published names - Spirillum winogradskyi and Spirillum volutans. [4]
Other "species" classified as Spirillum such as " Spirillum minus", " Spirillum pleomorphum", and " Spirillum pulli" are of uncertain phylogeny and in any case, these are names that have never been validly or effectively published and thus have no standing in nomenclature. [1] [5]
Members of the genus Spirillum are large, elongate, spiral shaped, rigid cells. [5] Some have tufts of amphitrichous flagella at both poles. They are microaerophilic and usually found in stagnant freshwater rich in organic matter. [5]
Spirillum | |
---|---|
Spirillum | |
Scientific classification | |
Domain: | Bacteria |
Phylum: | Pseudomonadota |
Class: | Betaproteobacteria |
Order: | Nitrosomonadales |
Family: | Spirillaceae |
Genus: |
Spirillum Ehrenberg, 1832 emend. Podkopaeva et al., 2009 |
Species | |
Spirillum is a genus of Gram-negative bacteria in the family Spirillaceae of the Nitrosomonadales of the Betaproteobacteria. [1] [2] [3] There are two species of Spirillum with validly or effectively published names - Spirillum winogradskyi and Spirillum volutans. [4]
Other "species" classified as Spirillum such as " Spirillum minus", " Spirillum pleomorphum", and " Spirillum pulli" are of uncertain phylogeny and in any case, these are names that have never been validly or effectively published and thus have no standing in nomenclature. [1] [5]
Members of the genus Spirillum are large, elongate, spiral shaped, rigid cells. [5] Some have tufts of amphitrichous flagella at both poles. They are microaerophilic and usually found in stagnant freshwater rich in organic matter. [5]