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Formate Utilization by the Crenarchaeon Desulfurococcus amylolyticus

Ergal, Ipek ; Reischl, Barbara ; Hasibar, Benedikt ; Manoharan, Lokeshwaran LU orcid ; Zipperle, Aaron ; Bochmann, Günther ; Fuchs, Werner and Rittmann, Simon K-M R (2020) In Microorganisms 8(3).
Abstract

Formate is one of the key compounds of the microbial carbon and/or energy metabolism. It owes a significant contribution to various anaerobic syntrophic associations, and may become one of the energy storage compounds of modern energy biotechnology. Microbial growth on formate was demonstrated for different bacteria and archaea, but not yet for species of the archaeal phylum Crenarchaeota. Here, we show that Desulfurococcus amylolyticus DSM 16532, an anaerobic and hyperthermophilic Crenarchaeon, metabolises formate without the production of molecular hydrogen. Growth, substrate uptake, and production kinetics on formate, glucose, and glucose/formate mixtures exhibited similar specific growth rates and similar final cell densities. A... (More)

Formate is one of the key compounds of the microbial carbon and/or energy metabolism. It owes a significant contribution to various anaerobic syntrophic associations, and may become one of the energy storage compounds of modern energy biotechnology. Microbial growth on formate was demonstrated for different bacteria and archaea, but not yet for species of the archaeal phylum Crenarchaeota. Here, we show that Desulfurococcus amylolyticus DSM 16532, an anaerobic and hyperthermophilic Crenarchaeon, metabolises formate without the production of molecular hydrogen. Growth, substrate uptake, and production kinetics on formate, glucose, and glucose/formate mixtures exhibited similar specific growth rates and similar final cell densities. A whole cell conversion experiment on formate revealed that D. amylolyticus converts formate into carbon dioxide, acetate, citrate, and ethanol. Using bioinformatic analysis, we examined whether one of the currently known and postulated formate utilisation pathways could be operative in D. amylolyticus. This analysis indicated the possibility that D. amylolyticus uses formaldehyde producing enzymes for the assimilation of formate. Therefore, we propose that formate might be assimilated into biomass through formaldehyde dehydrogenase and the oxidative pentose phosphate pathway. These findings shed new light on the metabolic versatility of the archaeal phylum Crenarchaeota.

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author
; ; ; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
subject
in
Microorganisms
volume
8
issue
3
article number
454
publisher
MDPI AG
external identifiers
  • scopus:85083440513
  • pmid:32210133
ISSN
2076-2607
DOI
10.3390/microorganisms8030454
language
English
LU publication?
no
id
6c411a30-1f76-4cba-8d66-765a1dd62f5a
date added to LUP
2020-03-31 09:56:34
date last changed
2024-09-18 21:18:21
@article{6c411a30-1f76-4cba-8d66-765a1dd62f5a,
  abstract     = {{<p>Formate is one of the key compounds of the microbial carbon and/or energy metabolism. It owes a significant contribution to various anaerobic syntrophic associations, and may become one of the energy storage compounds of modern energy biotechnology. Microbial growth on formate was demonstrated for different bacteria and archaea, but not yet for species of the archaeal phylum Crenarchaeota. Here, we show that Desulfurococcus amylolyticus DSM 16532, an anaerobic and hyperthermophilic Crenarchaeon, metabolises formate without the production of molecular hydrogen. Growth, substrate uptake, and production kinetics on formate, glucose, and glucose/formate mixtures exhibited similar specific growth rates and similar final cell densities. A whole cell conversion experiment on formate revealed that D. amylolyticus converts formate into carbon dioxide, acetate, citrate, and ethanol. Using bioinformatic analysis, we examined whether one of the currently known and postulated formate utilisation pathways could be operative in D. amylolyticus. This analysis indicated the possibility that D. amylolyticus uses formaldehyde producing enzymes for the assimilation of formate. Therefore, we propose that formate might be assimilated into biomass through formaldehyde dehydrogenase and the oxidative pentose phosphate pathway. These findings shed new light on the metabolic versatility of the archaeal phylum Crenarchaeota.</p>}},
  author       = {{Ergal, Ipek and Reischl, Barbara and Hasibar, Benedikt and Manoharan, Lokeshwaran and Zipperle, Aaron and Bochmann, Günther and Fuchs, Werner and Rittmann, Simon K-M R}},
  issn         = {{2076-2607}},
  language     = {{eng}},
  month        = {{03}},
  number       = {{3}},
  publisher    = {{MDPI AG}},
  series       = {{Microorganisms}},
  title        = {{Formate Utilization by the Crenarchaeon Desulfurococcus amylolyticus}},
  url          = {{http://dx.doi.org/10.3390/microorganisms8030454}},
  doi          = {{10.3390/microorganisms8030454}},
  volume       = {{8}},
  year         = {{2020}},
}