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Metagenomic evidence of a novel family of anammox bacteria in a subsea environment

Suarez, Carolina LU ; Dalcin Martins, Paula ; Jetten, Mike S M ; Karačić, Sabina ; Wilén, Britt Marie ; Modin, Oskar ; Hagelia, Per ; Hermansson, Malte and Persson, Frank (2022) In Environmental Microbiology 24(5). p.2348-2360
Abstract

Bacteria in the order 'Candidatus Brocadiales' within the phylum Planctomycetes (Planctomycetota) have the remarkable ability to perform anaerobic ammonium oxidation (anammox). Two families of anammox bacteria with different biogeographical distributions have been reported, marine Ca. Scalinduaceae and freshwater Ca. Brocadiaceae. Here we report evidence of three new species within a novel genus and family of anammox bacteria, which were discovered in biofilms of a subsea road tunnel under a fjord in Norway. In this particular ecosystem, the nitrogen cycle is likely fuelled by ammonia from organic matter degradation in the fjord sediments and the rock mass above the tunnel, resulting in the growth of biofilms where anammox bacteria can... (More)

Bacteria in the order 'Candidatus Brocadiales' within the phylum Planctomycetes (Planctomycetota) have the remarkable ability to perform anaerobic ammonium oxidation (anammox). Two families of anammox bacteria with different biogeographical distributions have been reported, marine Ca. Scalinduaceae and freshwater Ca. Brocadiaceae. Here we report evidence of three new species within a novel genus and family of anammox bacteria, which were discovered in biofilms of a subsea road tunnel under a fjord in Norway. In this particular ecosystem, the nitrogen cycle is likely fuelled by ammonia from organic matter degradation in the fjord sediments and the rock mass above the tunnel, resulting in the growth of biofilms where anammox bacteria can thrive under oxygen limitation. We resolved several metagenome-assembled genomes (MAGs) of anammox bacteria, including three Ca. Brocadiales MAGs that could not be classified at the family level. MAGs of this novel family had all the diagnostic genes for a full anaerobic ammonium oxidation pathway in which nitrite was probably reduced by a NirK-like reductase. A survey of published molecular data indicated that this new family of anammox bacteria occurs in many marine sediments, where its members presumably would contribute to nitrogen loss.

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author
; ; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Environmental Microbiology
volume
24
issue
5
pages
2348 - 2360
publisher
Wiley-Blackwell
external identifiers
  • pmid:35415863
  • scopus:85128279994
ISSN
1462-2920
DOI
10.1111/1462-2920.16006
project
Oslofjord tunnel microbiology
Metagenomic and transkription analyzes of partial nitration-anammox (PNA) processes in wastewater treatment
language
English
LU publication?
yes
additional info
© 2022 The Authors. Environmental Microbiology published by Society for Applied Microbiology and John Wiley & Sons Ltd.
id
29c2e112-f459-41d5-9628-fb621d3fedc5
date added to LUP
2022-05-02 13:41:15
date last changed
2024-06-13 12:10:09
@article{29c2e112-f459-41d5-9628-fb621d3fedc5,
  abstract     = {{<p>Bacteria in the order 'Candidatus Brocadiales' within the phylum Planctomycetes (Planctomycetota) have the remarkable ability to perform anaerobic ammonium oxidation (anammox). Two families of anammox bacteria with different biogeographical distributions have been reported, marine Ca. Scalinduaceae and freshwater Ca. Brocadiaceae. Here we report evidence of three new species within a novel genus and family of anammox bacteria, which were discovered in biofilms of a subsea road tunnel under a fjord in Norway. In this particular ecosystem, the nitrogen cycle is likely fuelled by ammonia from organic matter degradation in the fjord sediments and the rock mass above the tunnel, resulting in the growth of biofilms where anammox bacteria can thrive under oxygen limitation. We resolved several metagenome-assembled genomes (MAGs) of anammox bacteria, including three Ca. Brocadiales MAGs that could not be classified at the family level. MAGs of this novel family had all the diagnostic genes for a full anaerobic ammonium oxidation pathway in which nitrite was probably reduced by a NirK-like reductase. A survey of published molecular data indicated that this new family of anammox bacteria occurs in many marine sediments, where its members presumably would contribute to nitrogen loss.</p>}},
  author       = {{Suarez, Carolina and Dalcin Martins, Paula and Jetten, Mike S M and Karačić, Sabina and Wilén, Britt Marie and Modin, Oskar and Hagelia, Per and Hermansson, Malte and Persson, Frank}},
  issn         = {{1462-2920}},
  language     = {{eng}},
  month        = {{04}},
  number       = {{5}},
  pages        = {{2348--2360}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Environmental Microbiology}},
  title        = {{Metagenomic evidence of a novel family of anammox bacteria in a subsea environment}},
  url          = {{http://dx.doi.org/10.1111/1462-2920.16006}},
  doi          = {{10.1111/1462-2920.16006}},
  volume       = {{24}},
  year         = {{2022}},
}