Nitrosococcus watsonii sp. nov., a new species of marine obligate ammonia-oxidizing bacteria that is not omnipresent in the world's oceans: Calls to validate the names 'Nitrosococcus halophilus' and 'Nitrosomonas mobilis'

Mark A. Campbell, Patrick S.G. Chain, Hongyue Dang, Amal F. El Sheikh, Jeanette M. Norton, Naomi L. Ward, Bettie Ward, Martin G. Klotz

Research output: Contribution to journalArticle

42 Scopus citations

Abstract

Local associations between anammox bacteria and obligate aerobic bacteria in the genus Nitrosococcus appear to be significant for ammonia oxidation in oxygen minimum zones. The literature on the genus Nitrosococcus in the Chromatiaceae family of purple sulfur bacteria (Gammaproteobacteria, Chromatiales) contains reports on four described species, Nitrosococcus nitrosus, Nitrosococcus oceani, 'Nitrosococcus halophilus' and 'Nitrosomonas mobilis', of which only N. nitrosus and N. oceani are validly published names and only N. oceani is omnipresent in the world's oceans. The species 'N. halophilus' with Nc4T as the type strain was proposed in 1990, but the species is not validly published. Phylogenetic analyses of signature genes, growth-physiological studies and an average nucleotide identity analysis between N. oceani ATCC19707T (C-107, Nc9), 'N. halophilus' strain Nc4T and Nitrosococcus sp. strain C-113 revealed that a proposal for a new species is warranted. Therefore, the provisional taxonomic assignment Nitrosococcus watsonii is proposed for Nitrosococcus sp. strain C-113T. Sequence analysis of Nitrosococcus haoAB signature genes detected in cultures enriched from Jiaozhou Bay sediments (China) identified only N. oceani-type sequences, suggesting that different patterns of distribution in the environment correlate with speciation in the genus Nitrosococcus.

Original languageEnglish (US)
Pages (from-to)39-48
Number of pages10
JournalFEMS microbiology ecology
Volume76
Issue number1
DOIs
StatePublished - Apr 1 2011

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Ecology
  • Applied Microbiology and Biotechnology

Fingerprint Dive into the research topics of 'Nitrosococcus watsonii sp. nov., a new species of marine obligate ammonia-oxidizing bacteria that is not omnipresent in the world's oceans: Calls to validate the names 'Nitrosococcus halophilus' and 'Nitrosomonas mobilis''. Together they form a unique fingerprint.

  • Cite this