Die Alicyclobacillaceae sind eine Bakterien-Familie von grampositiven Bakterien.
Bei den Alicyclobacillaceae handelt es sich um meist aerobe (Sauerstoff benötigende), unbewegliche, stäbchenförmige Bakterien. Auch die Bildung von Endosporen tritt auf. Die Arten sind in der Regel acidophil (säureliebend) und thermophil (wärmeliebend). So zeigt z. B. Kyrpidia tusciae optimales Wachstum bei 47 bis 65 °C, die Arten von Alicyclobacillus bei Temperaturen zwischen 35 und 65 °C.[1][2] Tumebacillus permanetifrigoris ist dem hingegen psychrophil ("kälteliebend").[3]
Kyrpidia tusciae ist chemoautotroph und wächst mit H2 als Elektronendonor und CO2 als Kohlenstoffquelle. Das CO2 wird über den Ribulose-Bisphosphat-Zyklus gebunden. Die Art wurde früher als Bacillus tusciae bezeichnet.[4]
Die Familie Alicyclobacillaceae zählt zu der Ordnung der Caryophanales. Früher zählte auch die Gattung Pasteuria zu der Familie Alicyclobacillaceae. Aufgrund von 16S-rRNA-Analysen wurde sie wurde zu einer eigenen Familie, den Pasteuriaceae gestellt. Pasteuria ist ein obligater Parasit von Wirbellosen.[5] Im April 2022 wurden der Familie folgende Gattungen zugeordnet:[6]
Die Bakterien wurden unter anderem allgemein in normalen Böden als auch in Wasser und Böden von geothermischen Quellen gefunden. Aufgrund der Säurebeständigkeit und Hitzeresistenz kann die Art Alicyclobacillus acidoterrestris auch als Fruchtsaftverderber auftreten.
Die Alicyclobacillaceae sind eine Bakterien-Familie von grampositiven Bakterien.
The Alicyclobacillaceae are a family of Gram-positive bacteria. All members of this family are aerobic and form endospores.[2]
The family contains four genera: Alicyclobacillus, Effusibacillus, Kyrpidia, and Tumebacillus.[2] When originally created in 2009, Alicyclobacillaceae was a monophyletic family, only including genus Alicyclobacillus. In 2011, the novel genus Kyrpidia was proposed and placed in family Alicyclobacillaceae, and Tumebacillus was placed into the family as well.[3] In 2014, the novel genus Effusibacillus was proposed and added as the fourth member of Alicyclobacillaceae.[2]
Alicyclobacillus is the largest genus in Alicyclobacillaceae, with over 20 validly published species. The species are all acidophilic and have thermally resistant endospores. Many species are common soil organisms. Certain Alicyclobacillus species (especially A. acidoterrestris) have been implicated in spoilage of pasteurized fruit juice.[4]
Effusibacillus contains three species (as of 2019). Members of this genus have been isolated from a lake in Japan, a lake in Antarctica, and from the blood of a woman. E. lacus and E. pohliae are both thermophiles, with optimum growth temperatures above 50 °C, while the optimum growth temperature for E. consociatus is 30 °C.[2][5][6]
Kyrpidia contains two species (as of 2019). Both species of Kyrpidia have been isolated from areas of high volcanic activity in Tuscany, Italy, and the Azores. The optimum temperature for growth for both members of the genus is approximately 55 °C.[7][8]
Tumebacillus contains 8 species. Members of this genus have been isolated from arctic permafrost, soil samples, cassava wastewater, decomposing algal scum, river water, and the gut of a vulture.[9] Tumebacillus was found during surveys of nasal airways of infants, an underground subway in Norway, and a mountain observatory in Austria.[10][11][12]
No member of Alicyclobacillaceae has been found to be infectious. Effusibacillus consociatus was isolated from human blood and Tumebacillus was found during a survey of nasal airways of infants, but in neither instance were the bacteria found to be the cause of infection.[13][14]
The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)[15] and National Center for Biotechnology Information (NCBI)[16]
The Alicyclobacillaceae are a family of Gram-positive bacteria. All members of this family are aerobic and form endospores.
The family contains four genera: Alicyclobacillus, Effusibacillus, Kyrpidia, and Tumebacillus. When originally created in 2009, Alicyclobacillaceae was a monophyletic family, only including genus Alicyclobacillus. In 2011, the novel genus Kyrpidia was proposed and placed in family Alicyclobacillaceae, and Tumebacillus was placed into the family as well. In 2014, the novel genus Effusibacillus was proposed and added as the fourth member of Alicyclobacillaceae.
Alicyclobacillus is the largest genus in Alicyclobacillaceae, with over 20 validly published species. The species are all acidophilic and have thermally resistant endospores. Many species are common soil organisms. Certain Alicyclobacillus species (especially A. acidoterrestris) have been implicated in spoilage of pasteurized fruit juice.
Effusibacillus contains three species (as of 2019). Members of this genus have been isolated from a lake in Japan, a lake in Antarctica, and from the blood of a woman. E. lacus and E. pohliae are both thermophiles, with optimum growth temperatures above 50 °C, while the optimum growth temperature for E. consociatus is 30 °C.
Kyrpidia contains two species (as of 2019). Both species of Kyrpidia have been isolated from areas of high volcanic activity in Tuscany, Italy, and the Azores. The optimum temperature for growth for both members of the genus is approximately 55 °C.
Tumebacillus contains 8 species. Members of this genus have been isolated from arctic permafrost, soil samples, cassava wastewater, decomposing algal scum, river water, and the gut of a vulture. Tumebacillus was found during surveys of nasal airways of infants, an underground subway in Norway, and a mountain observatory in Austria.
No member of Alicyclobacillaceae has been found to be infectious. Effusibacillus consociatus was isolated from human blood and Tumebacillus was found during a survey of nasal airways of infants, but in neither instance were the bacteria found to be the cause of infection.
Alicyclobacillaceae è una famiglia di batteri appartenente all'ordine dei Bacillales. Essa comprende tre generi:
