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Scientific classification
Kingdom: Bacteria
Phylum: Firmicutes
Class: Clostridia
Order: Clostridiales
Family: Veillonellaceae
Genus: Acetonema
Kane and Breznak 1992[1]
Type species
Acetonema ecieslongum[1]

A. longum[1]

Acetonema is a genus of bacteria in the family Veillonellaceae. It is H2-oxidizing CO2-reducing acetogenic strictly anaerobic endospore-forming Gram-negative motile rod-shaped, isolated from gut contents of the wood-feeding termite Pterotermes occidentis. Cells are catalase positive, oxidase negative, and have 51.5 mol percent G + C in their DNA. Optimum conditions for growth on H2 + CO2 are at 30-33 degrees C and pH (initial) 7.8. Acetonema longum is the sole species within the genus.[2]


  1. ^ a b c LSPN
  2. ^ Kane MD, Breznak JA (1991). "Acetonema longum gen. nov. sp. nov., an H2/CO2 acetogenic bacterium from the termite, Pterotermes occidentis.". Arch Microbiol. 156: 91–8. PMID 1723588. doi:10.1007/bf00290979.