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Metabolic versatility of the Riftia pachyptila endosymbiont revealed through metagenomics.

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Title: Metabolic versatility of the Riftia pachyptila endosymbiont revealed through metagenomics.
Authors: Robidart, Julie C.1,2 jrobidart@oeb.harvard.edu, Bench, Shellie R.3, Feldman, Robert A.3, Novoradovsky, Alexey4, Podell, Sheila B.4, Gaasterland, Terry4, Allen, Eric E.5, Felbeck, Horst5
Source: Environmental Microbiology. Mar2008, Vol. 10 Issue 3, p727-737. 11p. 1 Diagram, 1 Graph.
Subjects: Metabolism, Pachyptila, Genomes, Lyases, Phosphotransferases, Heterotrophic bacteria, Cellular signal transduction, Eukaryotic cells, Microbial genetics
Abstract: The facultative symbiont of Riftia pachyptila, named here Candidatus Endoriftia persephone, has evaded culture to date, but much has been learned regarding this symbiosis over the past three decades since its discovery. The symbiont population metagenome was sequenced in order to gain insight into its physiology. The population genome indicates that the symbionts use a partial Calvin–Benson Cycle for carbon fixation and the reverse TCA cycle (an alternative pathway for carbon fixation) that contains an unusual ATP citrate lyase. The presence of all genes necessary for heterotrophic metabolism, a phosphotransferase system, and dicarboxylate and ABC transporters indicate that the symbiont can live mixotrophically. The metagenome has a large suite of signal transduction, defence (both biological and environmental) and chemotaxis mechanisms. The physiology of Candidatus Endoriftia persephone is explored with respect to functionality while associated with a eukaryotic host, versus free-living in the hydrothermal environment. [ABSTRACT FROM AUTHOR]
Copyright of Environmental Microbiology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Metabolic versatility of the Riftia pachyptila endosymbiont revealed through metagenomics.
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  Data: <searchLink fieldCode="AR" term="%22Robidart%2C+Julie+C%2E%22">Robidart, Julie C.</searchLink><relatesTo>1,2</relatesTo><i> jrobidart@oeb.harvard.edu</i><br /><searchLink fieldCode="AR" term="%22Bench%2C+Shellie+R%2E%22">Bench, Shellie R.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Feldman%2C+Robert+A%2E%22">Feldman, Robert A.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Novoradovsky%2C+Alexey%22">Novoradovsky, Alexey</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Podell%2C+Sheila+B%2E%22">Podell, Sheila B.</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Gaasterland%2C+Terry%22">Gaasterland, Terry</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Allen%2C+Eric+E%2E%22">Allen, Eric E.</searchLink><relatesTo>5</relatesTo><br /><searchLink fieldCode="AR" term="%22Felbeck%2C+Horst%22">Felbeck, Horst</searchLink><relatesTo>5</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Environmental+Microbiology%22">Environmental Microbiology</searchLink>. Mar2008, Vol. 10 Issue 3, p727-737. 11p. 1 Diagram, 1 Graph.
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  Data: <searchLink fieldCode="DE" term="%22Metabolism%22">Metabolism</searchLink><br /><searchLink fieldCode="DE" term="%22Pachyptila%22">Pachyptila</searchLink><br /><searchLink fieldCode="DE" term="%22Genomes%22">Genomes</searchLink><br /><searchLink fieldCode="DE" term="%22Lyases%22">Lyases</searchLink><br /><searchLink fieldCode="DE" term="%22Phosphotransferases%22">Phosphotransferases</searchLink><br /><searchLink fieldCode="DE" term="%22Heterotrophic+bacteria%22">Heterotrophic bacteria</searchLink><br /><searchLink fieldCode="DE" term="%22Cellular+signal+transduction%22">Cellular signal transduction</searchLink><br /><searchLink fieldCode="DE" term="%22Eukaryotic+cells%22">Eukaryotic cells</searchLink><br /><searchLink fieldCode="DE" term="%22Microbial+genetics%22">Microbial genetics</searchLink>
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  Data: The facultative symbiont of Riftia pachyptila, named here Candidatus Endoriftia persephone, has evaded culture to date, but much has been learned regarding this symbiosis over the past three decades since its discovery. The symbiont population metagenome was sequenced in order to gain insight into its physiology. The population genome indicates that the symbionts use a partial Calvin–Benson Cycle for carbon fixation and the reverse TCA cycle (an alternative pathway for carbon fixation) that contains an unusual ATP citrate lyase. The presence of all genes necessary for heterotrophic metabolism, a phosphotransferase system, and dicarboxylate and ABC transporters indicate that the symbiont can live mixotrophically. The metagenome has a large suite of signal transduction, defence (both biological and environmental) and chemotaxis mechanisms. The physiology of Candidatus Endoriftia persephone is explored with respect to functionality while associated with a eukaryotic host, versus free-living in the hydrothermal environment. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Environmental Microbiology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1111/j.1462-2920.2007.01496.x
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      – Code: eng
        Text: English
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        PageCount: 11
        StartPage: 727
    Subjects:
      – SubjectFull: Metabolism
        Type: general
      – SubjectFull: Pachyptila
        Type: general
      – SubjectFull: Genomes
        Type: general
      – SubjectFull: Lyases
        Type: general
      – SubjectFull: Phosphotransferases
        Type: general
      – SubjectFull: Heterotrophic bacteria
        Type: general
      – SubjectFull: Cellular signal transduction
        Type: general
      – SubjectFull: Eukaryotic cells
        Type: general
      – SubjectFull: Microbial genetics
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      – TitleFull: Metabolic versatility of the Riftia pachyptila endosymbiont revealed through metagenomics.
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              Text: Mar2008
              Type: published
              Y: 2008
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