Positive, neutral and egative interactions in cocultures between Pyrococcus furiosus and different methanogenic Archaea

URN to cite this document:

urn:nbn:de:bvb:355-epub-237360

Weiner, Agnes ; Schopf, Simone ; Wanner, Gerhard ; Probst, Alexander ; Wirth, Reinhard

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License: Creative Commons Attribution Non-commercial 3.0 PDF - Published Version (2MB)

Date of publication of this fulltext: 11 Apr 2012 09:09

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Details

Item type:	Article
Date:	17 January 2010
Institutions:	Biology, Preclinical Medicine > Institut für Biochemie, Genetik und Mikrobiologie > Lehrstuhl für Mikrobiologie > Prof. Dr. Reinhard Wirth
Projects:	Open Access Publizieren (DFG)
Identification Number:	Value Type 10.4137/MBI.S8516 DOI
Keywords:	archaeal coculture, symbiotic interaction, neutral interaction, negative interaction, adhesion
Dewey Decimal Classification:	500 Science > 570 Life sciences
Status:	Published
Refereed:	Yes, this version has been refereed
Created at the University of Regensburg:	Partially
Item ID:	23736

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Abstract

The model organism Pyrococcus furiosus has recently been reported to interact with Methanopyrus kandleri in coculture, suggesting a H2 symbiosis. In the current study we further investigated this hypothesis by growing P. furiosus with four other hyperthermophilic methanogens providing evidence that the organisms did not only exert positive effects (P. furiosus/Methanocaldococcus villosus and P. ...

Abstract

The model organism Pyrococcus furiosus has recently been reported to interact with Methanopyrus kandleri in coculture, suggesting a H2 symbiosis. In the current study we further investigated this hypothesis by growing P. furiosus with four other hyperthermophilic methanogens providing evidence that the organisms did not only exert positive effects (P. furiosus/Methanocaldococcus villosus and P. furiosus/Methanocaldococcus infernus) on each other, but also neutral (P. furiosus/Methanocaldococcus jannaschii) and even inhibitory interactions (P. furiosus/Methanotorris igneus) were detected suggesting interspecies relationships not only based on H2 symbiosis. Using various microscopic techniques we further analyzed the coculture with the highest positive interactions (P. furiosus/ M. villosus) concerning its growth behavior on various surfaces, which turned out to be in stark contrast to the previous reported coculture of P. furiosus/M. kandleri. This communication provides new insights into possible interactions of extremophilic Archaea in co-cultures and again raises the question if and how hyperthermophilic Archaea communicate besides metabolic intermediates like H2.

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Metadata last modified: 07 Aug 2018 07:36

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