''Ammonifex degensii'' is a

Gram-negative Gram-negative bacteria are bacteria that do not retain the crystal violet stain used in the Gram staining method of bacterial differentiation. They are characterized by their cell envelopes, which are composed of a thin peptidoglycan cell wall ...

bacterium from the genus of

Ammonifex ''Ammonifex'' is a Gram-negative, extremely thermophilic, strictly anaerobic and motile genus of bacteria from the family of Thermoanaerobacteraceae The Thermoanaerobacteraceae is a highly polyphyletic family of bacteria placed within the cla ...

which has been isolated from a volcanic hot spring from the Kawah Candradimuka

crater Crater may refer to: Landforms *Impact crater, a depression caused by two celestial bodies impacting each other, such as a meteorite hitting a planet *Explosion crater, a hole formed in the ground produced by an explosion near or below the surfac ...

Dieng Plateau The Dieng Plateau is a marshy plateau that forms the floor of a caldera complex on the Dieng Volcanic Complex in Wonosobo and Banjarnegara Regencies, Central Java Province, Indonesia. Referred to as "Dieng" by Indonesians, it sits at above sea l ...

Java Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's List ...

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...

References

Thermoanaerobacterales Bacteria described in 1996 Thermophiles Anaerobes {{Firmicutes-stub