Neisseriaceae
Neisseria gonorrhoeae
The Neisseriaceae are the only family of the order Neisseriales within the beta - Proteobacteria. They include various human pathogenic species. They are named after Albert Neisser (* 1855, † 1916). A known example is Neisseria meningitidis, generally referred to as meningococci. This bacteria can cause an infection in meningitis and blood poisoning.
Features
The representatives are coccoid, they occur singly, in pairs or in clusters on. Also, rod-shaped cells are formed. You have pili and require free oxygen for metabolism ( aerobic). With the exception of the genus Aquaspirillum flagella are not present. The cells do not form spores. In cultures they exhibit optimum growth at temperatures 32-36 ° C. Pigments form only the genera Vogesella and Chromobacterium.
Many species are parasites of warm-blooded animals. Important pathogens of man are found in the genus Neisseria.
System
The systematics of this family was subject to some changes due to molecular biological studies of gene structures ( comparisons of DNA, 16S rRNA analysis). Thus, inter alia, associated with the previously identified to this family the genera Moraxella, Acinetobacter Psychrobacte and the specially created family Moraxellaceae. The nature of Branhamella catarrhalis is now conducted under the style name Moraxella catarrhalis.
Some genera:
- Alysiella Langeron 1923
- Amantichitinum Moß et al. 2013
- Aquaspirillum Hylemon et al. 1973
- Aquitalea Lau et al. 2006
- Bergeriella Xie and Yokota 2005
- Chitinibacter Chern et al. 2004
- Chromobacterium Bergonzini 1880
- Conchiformibius Xie and Yokota 2005
- Deefgea Stackebrandt et al. 2007
- Eikenella Jackson and Goodman 1972
- Formivibrio Tanaka et al. 1991
- Iodobacter Logan 1989
- Kingella Henriksen and Bovre 1976
- Laribacter Yuen et al. 2002
- Microvirgula Patureau et al. 1998
- Neisseria Trevisan 1885
- Simonsiella Schmid 1922
- Uruburuella Vela et al. 2005
- Vogesella Vela et al. 2005
The genera Chromobacterium, Iodobacter and Vitreoscilla are assigned by some authors of the so-called Chromobacterium -group