Neisseriales Tonjum 2006
General information
Description and emendation
Organisms are coccal, coccoid, or distinctly rod-shaped, occurring singly, in pairs, in masses, or in short chains. Cells of Aquaspirillum are helical, while Simonsiella and Alysiella may exhibit a characteristic multicellular micromorphology. Endospores are not formed. Gram-negative, but there may be a tendency to resist decolorization. Flagella and swimming motility are absent except in the genus Aquaspirillum. The cells are nonmotile in liquid media but surface-bound motility ('twitching motility') is frequently observed. Fimbriae (pili) are often present. All species grow aerobically. Strains of all recognized species usually have an optimal growth temperature of approximately 32-36°C. Capsules may be present. Colonies of most genera are not pigmented, with the exception of strains of Vogesella and Chromobacterium. Several species have complex growth factor requirements, while some species grow readily in simple defined media containing a single organic carbon and energy source. The mol% G+C of the DNA is: 46-67.
Subdivision(s)
MID | Name | Rank | Taxon ID |
---|---|---|---|
MSG073470 | 'Neisseriales bacterium' | Species | |
M0225030201 | Chromobacteriaceae | Family | 1499392 |
M0225030202 | Neisseriaceae | Family | 481 |