Unexpected and novel putative viruses in the sediments of a deep-dark permanently anoxic freshwater habitat
Morphological diversity, abundance and community structure of viruses were examined in the deep and anoxic sediments of the volcanic Lake Pavin (France). The sediment core, encompassing 130 years of sedimentation, was subsampled every centimeter. High viral abundances were recorded and correlated to prokaryotic densities. Abundances of viruses and prokaryotes decreased with the depth, contrasting the pattern of virus-to-prokaryote ratio. According to fingerprint analyses, the community structure of viruses, bacteria and archaea gradually changed, and communities of the surface (0-10 cm) could be discriminated from those of the intermediate (11-27 cm) and deep (28-40 cm) sediment layers. Viral morphotypes similar to virions of ubiquitous dsDNA viruses of bacteria were observed. Exceptional morphotypes, previously never reported in freshwater systems, were also detected. Some of these resembled dsDNA viruses of hyperthermophilic and hyperhalophilic archaea. Moreover, unusual types of spherical and cubic virus-like particles (VLPs) were observed. Infected prokaryotic cells were detected in the whole sediment core, and their vertical distribution correlated with both viral and prokaryotic abundances. Pleomorphic ellipsoid VLPs were visible in filamentous cells tentatively identified as representatives of the archaeal genus Methanosaeta, a major group of methane producers on earth.
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Subjects: | 000 - Autres thèmes, P34 - Biologie du sol, paléontologie, virus, Bacteria, adn, sédiment, anoxie, lac, biodiversité, morphologie, http://aims.fao.org/aos/agrovoc/c_5509, http://aims.fao.org/aos/agrovoc/c_8262, http://aims.fao.org/aos/agrovoc/c_765, http://aims.fao.org/aos/agrovoc/c_2347, http://aims.fao.org/aos/agrovoc/c_25341, http://aims.fao.org/aos/agrovoc/c_8831, http://aims.fao.org/aos/agrovoc/c_4160, http://aims.fao.org/aos/agrovoc/c_33949, http://aims.fao.org/aos/agrovoc/c_49903, http://aims.fao.org/aos/agrovoc/c_725, http://aims.fao.org/aos/agrovoc/c_3081, |
Online Access: | http://agritrop.cirad.fr/567193/ http://agritrop.cirad.fr/567193/1/document_567193.pdf |
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dig-cirad-fr-5671932024-01-28T21:06:32Z http://agritrop.cirad.fr/567193/ http://agritrop.cirad.fr/567193/ Unexpected and novel putative viruses in the sediments of a deep-dark permanently anoxic freshwater habitat. Borrel Guillaume, Colombet Jonathan, Robin Agnès, Lehours Anne-Catherine, Prangishvili David, Sime-Ngando Télesphore. 2012. ISME Journal, 6 : 2119-2127.https://doi.org/10.1038/ismej.2012.49 <https://doi.org/10.1038/ismej.2012.49> Unexpected and novel putative viruses in the sediments of a deep-dark permanently anoxic freshwater habitat Borrel, Guillaume Colombet, Jonathan Robin, Agnès Lehours, Anne-Catherine Prangishvili, David Sime-Ngando, Télesphore eng 2012 ISME Journal 000 - Autres thèmes P34 - Biologie du sol paléontologie virus Bacteria adn sédiment anoxie lac biodiversité morphologie http://aims.fao.org/aos/agrovoc/c_5509 http://aims.fao.org/aos/agrovoc/c_8262 http://aims.fao.org/aos/agrovoc/c_765 http://aims.fao.org/aos/agrovoc/c_2347 http://aims.fao.org/aos/agrovoc/c_25341 http://aims.fao.org/aos/agrovoc/c_8831 http://aims.fao.org/aos/agrovoc/c_4160 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_49903 Auvergne France http://aims.fao.org/aos/agrovoc/c_725 http://aims.fao.org/aos/agrovoc/c_3081 Morphological diversity, abundance and community structure of viruses were examined in the deep and anoxic sediments of the volcanic Lake Pavin (France). The sediment core, encompassing 130 years of sedimentation, was subsampled every centimeter. High viral abundances were recorded and correlated to prokaryotic densities. Abundances of viruses and prokaryotes decreased with the depth, contrasting the pattern of virus-to-prokaryote ratio. According to fingerprint analyses, the community structure of viruses, bacteria and archaea gradually changed, and communities of the surface (0-10 cm) could be discriminated from those of the intermediate (11-27 cm) and deep (28-40 cm) sediment layers. Viral morphotypes similar to virions of ubiquitous dsDNA viruses of bacteria were observed. Exceptional morphotypes, previously never reported in freshwater systems, were also detected. Some of these resembled dsDNA viruses of hyperthermophilic and hyperhalophilic archaea. Moreover, unusual types of spherical and cubic virus-like particles (VLPs) were observed. Infected prokaryotic cells were detected in the whole sediment core, and their vertical distribution correlated with both viral and prokaryotic abundances. Pleomorphic ellipsoid VLPs were visible in filamentous cells tentatively identified as representatives of the archaeal genus Methanosaeta, a major group of methane producers on earth. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/567193/1/document_567193.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1038/ismej.2012.49 10.1038/ismej.2012.49 info:eu-repo/semantics/altIdentifier/doi/10.1038/ismej.2012.49 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1038/ismej.2012.49 |
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000 - Autres thèmes P34 - Biologie du sol paléontologie virus Bacteria adn sédiment anoxie lac biodiversité morphologie http://aims.fao.org/aos/agrovoc/c_5509 http://aims.fao.org/aos/agrovoc/c_8262 http://aims.fao.org/aos/agrovoc/c_765 http://aims.fao.org/aos/agrovoc/c_2347 http://aims.fao.org/aos/agrovoc/c_25341 http://aims.fao.org/aos/agrovoc/c_8831 http://aims.fao.org/aos/agrovoc/c_4160 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_49903 http://aims.fao.org/aos/agrovoc/c_725 http://aims.fao.org/aos/agrovoc/c_3081 000 - Autres thèmes P34 - Biologie du sol paléontologie virus Bacteria adn sédiment anoxie lac biodiversité morphologie http://aims.fao.org/aos/agrovoc/c_5509 http://aims.fao.org/aos/agrovoc/c_8262 http://aims.fao.org/aos/agrovoc/c_765 http://aims.fao.org/aos/agrovoc/c_2347 http://aims.fao.org/aos/agrovoc/c_25341 http://aims.fao.org/aos/agrovoc/c_8831 http://aims.fao.org/aos/agrovoc/c_4160 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_49903 http://aims.fao.org/aos/agrovoc/c_725 http://aims.fao.org/aos/agrovoc/c_3081 |
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000 - Autres thèmes P34 - Biologie du sol paléontologie virus Bacteria adn sédiment anoxie lac biodiversité morphologie http://aims.fao.org/aos/agrovoc/c_5509 http://aims.fao.org/aos/agrovoc/c_8262 http://aims.fao.org/aos/agrovoc/c_765 http://aims.fao.org/aos/agrovoc/c_2347 http://aims.fao.org/aos/agrovoc/c_25341 http://aims.fao.org/aos/agrovoc/c_8831 http://aims.fao.org/aos/agrovoc/c_4160 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_49903 http://aims.fao.org/aos/agrovoc/c_725 http://aims.fao.org/aos/agrovoc/c_3081 000 - Autres thèmes P34 - Biologie du sol paléontologie virus Bacteria adn sédiment anoxie lac biodiversité morphologie http://aims.fao.org/aos/agrovoc/c_5509 http://aims.fao.org/aos/agrovoc/c_8262 http://aims.fao.org/aos/agrovoc/c_765 http://aims.fao.org/aos/agrovoc/c_2347 http://aims.fao.org/aos/agrovoc/c_25341 http://aims.fao.org/aos/agrovoc/c_8831 http://aims.fao.org/aos/agrovoc/c_4160 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_49903 http://aims.fao.org/aos/agrovoc/c_725 http://aims.fao.org/aos/agrovoc/c_3081 Borrel, Guillaume Colombet, Jonathan Robin, Agnès Lehours, Anne-Catherine Prangishvili, David Sime-Ngando, Télesphore Unexpected and novel putative viruses in the sediments of a deep-dark permanently anoxic freshwater habitat |
description |
Morphological diversity, abundance and community structure of viruses were examined in the deep and anoxic sediments of the volcanic Lake Pavin (France). The sediment core, encompassing 130 years of sedimentation, was subsampled every centimeter. High viral abundances were recorded and correlated to prokaryotic densities. Abundances of viruses and prokaryotes decreased with the depth, contrasting the pattern of virus-to-prokaryote ratio. According to fingerprint analyses, the community structure of viruses, bacteria and archaea gradually changed, and communities of the surface (0-10 cm) could be discriminated from those of the intermediate (11-27 cm) and deep (28-40 cm) sediment layers. Viral morphotypes similar to virions of ubiquitous dsDNA viruses of bacteria were observed. Exceptional morphotypes, previously never reported in freshwater systems, were also detected. Some of these resembled dsDNA viruses of hyperthermophilic and hyperhalophilic archaea. Moreover, unusual types of spherical and cubic virus-like particles (VLPs) were observed. Infected prokaryotic cells were detected in the whole sediment core, and their vertical distribution correlated with both viral and prokaryotic abundances. Pleomorphic ellipsoid VLPs were visible in filamentous cells tentatively identified as representatives of the archaeal genus Methanosaeta, a major group of methane producers on earth. |
format |
article |
topic_facet |
000 - Autres thèmes P34 - Biologie du sol paléontologie virus Bacteria adn sédiment anoxie lac biodiversité morphologie http://aims.fao.org/aos/agrovoc/c_5509 http://aims.fao.org/aos/agrovoc/c_8262 http://aims.fao.org/aos/agrovoc/c_765 http://aims.fao.org/aos/agrovoc/c_2347 http://aims.fao.org/aos/agrovoc/c_25341 http://aims.fao.org/aos/agrovoc/c_8831 http://aims.fao.org/aos/agrovoc/c_4160 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_49903 http://aims.fao.org/aos/agrovoc/c_725 http://aims.fao.org/aos/agrovoc/c_3081 |
author |
Borrel, Guillaume Colombet, Jonathan Robin, Agnès Lehours, Anne-Catherine Prangishvili, David Sime-Ngando, Télesphore |
author_facet |
Borrel, Guillaume Colombet, Jonathan Robin, Agnès Lehours, Anne-Catherine Prangishvili, David Sime-Ngando, Télesphore |
author_sort |
Borrel, Guillaume |
title |
Unexpected and novel putative viruses in the sediments of a deep-dark permanently anoxic freshwater habitat |
title_short |
Unexpected and novel putative viruses in the sediments of a deep-dark permanently anoxic freshwater habitat |
title_full |
Unexpected and novel putative viruses in the sediments of a deep-dark permanently anoxic freshwater habitat |
title_fullStr |
Unexpected and novel putative viruses in the sediments of a deep-dark permanently anoxic freshwater habitat |
title_full_unstemmed |
Unexpected and novel putative viruses in the sediments of a deep-dark permanently anoxic freshwater habitat |
title_sort |
unexpected and novel putative viruses in the sediments of a deep-dark permanently anoxic freshwater habitat |
url |
http://agritrop.cirad.fr/567193/ http://agritrop.cirad.fr/567193/1/document_567193.pdf |
work_keys_str_mv |
AT borrelguillaume unexpectedandnovelputativevirusesinthesedimentsofadeepdarkpermanentlyanoxicfreshwaterhabitat AT colombetjonathan unexpectedandnovelputativevirusesinthesedimentsofadeepdarkpermanentlyanoxicfreshwaterhabitat AT robinagnes unexpectedandnovelputativevirusesinthesedimentsofadeepdarkpermanentlyanoxicfreshwaterhabitat AT lehoursannecatherine unexpectedandnovelputativevirusesinthesedimentsofadeepdarkpermanentlyanoxicfreshwaterhabitat AT prangishvilidavid unexpectedandnovelputativevirusesinthesedimentsofadeepdarkpermanentlyanoxicfreshwaterhabitat AT simengandotelesphore unexpectedandnovelputativevirusesinthesedimentsofadeepdarkpermanentlyanoxicfreshwaterhabitat |
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