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Ferrimicrobium acidiphilum gen. nov., sp. nov. and Ferrithrix thermotolerans gen. nov., sp. nov.: heterotrophic, iron-oxidizing, extremely acidophilic actinobacteria

datacite.subject.sdg12:Produção e Consumo Sustentáveispt_PT
datacite.subject.sdg15:Proteger a Vida Terrestrept_PT
dc.contributor.authorJohnson, D. Barrie
dc.contributor.authorNicolau, Paula Bacelar
dc.contributor.authorOkibe, Naoko
dc.contributor.authorThomas, Angharad
dc.contributor.authorHallberg, Kevin B.
dc.date.accessioned2023-06-14T10:17:03Z
dc.date.available2023-06-14T10:17:03Z
dc.date.issued2009
dc.description.abstractTwo novel extremely acidophilic, iron-oxidizing actinobacteria were isolated, one from a mine site in North Wales, UK (isolate T23T), and the other from a geothermal site in Yellowstone National Park, Wyoming, USA (Y005T). These new actinobacteria belong to the subclass Acidimicrobidae, and in contrast to the only other classified member of the subclass (Acidimicrobium ferrooxidans), both isolates were obligate heterotrophs. The mine site isolate was mesophilic and grew as small rods, while the Yellowstone isolate was a moderate thermophile and grew as long filaments, forming macroscopic flocs in liquid media. Both isolates accelerated the oxidative dissolution of pyrite in yeast extract-amended cultures, but neither was able to oxidize reduced forms of sulfur. Ferrous iron oxidation enhanced growth yields of the novel mesophilic actinobacterium T23T, though this was not confirmed for the Yellowstone isolate. Both isolates catalysed the dissimilatory reduction of ferric iron, using glycerol as electron donor, in oxygen-free medium. Based on comparative analyses of base compositions of their chromosomal DNA and of their 16S rRNA gene sequences, the isolates are both distinct from each other and from Acidimicrobium ferrooxidans, and are representatives of two novel genera. The names Ferrimicrobium acidiphilum gen. nov., sp. nov. and Ferrithrix thermotolerans gen. nov., sp. nov. are proposed for the mesophilic and moderately thermophilic isolates, respectively, with the respective type strains T23T (5DSM 19497T5ATCC BAA-1647T) and Y005T (5DSM 19514T5ATCC BAA-1645T).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1099/ijs.0.65409-0pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.2/14019
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.titleFerrimicrobium acidiphilum gen. nov., sp. nov. and Ferrithrix thermotolerans gen. nov., sp. nov.: heterotrophic, iron-oxidizing, extremely acidophilic actinobacteriapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1089pt_PT
oaire.citation.issue5pt_PT
oaire.citation.startPage1082pt_PT
oaire.citation.titleInternational Journal of Systematic and Evolutionary Microbiologypt_PT
oaire.citation.volume59pt_PT
person.familyNameNicolau
person.givenNamePaula Bacelar
person.identifierhttps://scholar.google.com/citations?hl=pt-PT&user=WWFc0MkAAAAJ
person.identifier.ciencia-id7D11-BE78-21FD
person.identifier.orcid0000-0001-5940-5131
person.identifier.scopus-author-id6507462575
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationc65a3227-1c5b-4bd3-b49c-95c19d53fdd6
relation.isAuthorOfPublication.latestForDiscoveryc65a3227-1c5b-4bd3-b49c-95c19d53fdd6

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