''Alicyclobacillus kakegawensis'' is a species of

Gram positive In bacteriology, gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify bacteria into two broad categories according to their type of cell wall. The Gram stain i ...

, strictly aerobic,

bacterium Bacteria (; : bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the ...

. The bacteria are acidophilic and produce endospores. It was first isolated from soil in

Kakegawa is a city in western Shizuoka Prefecture, Japan. , the city had an estimated population of 117,925 in 45,519 households. The total area of the city is . Geography Kakegawa is in the coastal plains of southwest Shizuoka Prefecture. It is border ...

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

. The species was first described in 2007, and the named after the city from which it was first isolated. The optimum growth temperature for ''A. kakegawensis'' is 50-55 °C, and can grow in the 40-60 °C range. The optimum pH is 4.0-4.5, and cannot grow at pH 3.0 or pH 6.5. ''Alicyclobacillus kakegawensis'' was found during a Japanese survey of various beverages and environments, which also discovered 5 other species of ''Alicyclobacillus'': '' A. contaminans'', '' A. fastidiosus'', '' A. macrosporangiidus'', '' A. sacchari'', and '' A. shizuokensis''.

References

Gram-positive bacteria Bacteria described in 2007 Bacillales {{bacilli-stub