The phylogenetic position of Hydrogenobacter acidophilus based on 16S rRNA 
sequence analysis

Shima, Seigo; Yanagi, Miyoko; Saiki, Hiroshi

doi:10.1111/j.1574-6968.1994.tb06877.x

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The phylogenetic position of Hydrogenobacter acidophilus based on 16S rRNA sequence analysis

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Shima, S., Yanagi, M., & Saiki, H. (1994). The phylogenetic position of Hydrogenobacter acidophilus based on 16S rRNA sequence analysis. FEMS Microbiology Letters, 119(1-2), 119-122. doi:10.1111/j.1574-6968.1994.tb06877.x.

Cite as: https://hdl.handle.net/21.11116/0000-0009-4BA2-C

Abstract

Hydrogenobacter acidophilus strain 3H-1 is a thermoacidophilic, obligately chemolithoautotrophic, hydrogen-oxidizer isolated from a Japanese solfataric field. Strain 3H-1 requires elemental sulfur for growth. We used PCR to amplify the 16S rRNA gene of strain 3H-1, and sequenced the amplification product directly. Phylogenetic analyses show strain 3H-1 is closely related to Aquifex pyrophilus and may be located in the deepest branch within the eubacterial phylogenetic tree. Sulfur-dependency of the ancestral eubacterium is also discussed.