Regional Variation in Lytic and Lysogenic Viral Infection in the Southern Ocean and Its Contribution to Biogeochemical Cycling
Lytic and lysogenic viral infection was investigated throughout the Southern Ocean at sites spanning the sub-Antarctic zone, the Antarctic Circumpolar Current, and an Antarctic continental sea. Higher lytic virus activity was recorded in the more productive sub-Antarctic zone than in the iron-limite...
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2012
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ftnioz:oai:imis.nioz.nl:231013 2023-05-15T13:47:57+02:00 Regional Variation in Lytic and Lysogenic Viral Infection in the Southern Ocean and Its Contribution to Biogeochemical Cycling Evans, C. Brussaard, C.P.D. 2012 http://imis.nioz.nl/imis.php?module=ref&refid=231013 en eng info:eu-repo/semantics/altIdentifier/wos/000308336400043 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1128/AEM.01388-12 http://imis.nioz.nl/imis.php?module=ref&refid=231013 info:eu-repo/semantics/closedAccess %3Ci%3EAppl.+Environ.+Microbiol.+78%2818%29%3C%2Fi%3E%3A+6741-6748.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1128%2FAEM.01388-12%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1128%2FAEM.01388-12%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2012 ftnioz https://doi.org/10.1128/AEM.01388-12 2022-05-01T13:56:52Z Lytic and lysogenic viral infection was investigated throughout the Southern Ocean at sites spanning the sub-Antarctic zone, the Antarctic Circumpolar Current, and an Antarctic continental sea. Higher lytic virus activity was recorded in the more productive sub-Antarctic zone than in the iron-limited waters of the Antarctic Circumpolar Current during two transects. Reduced lytic viral activity in the Antarctic Circumpolar Current was combined with a shift toward lysogenic infection, probably resulting from the lower concentration of potential prokaryotic hosts. Superimposed on this variation, lytic viral production was lower in a transect completed in the Drake Passage in autumn (1.8 x 10(8) to 1.5 x 10(9) liter(-1) day(-1)) than over the Greenwich Meridian during summer (5.1 x 10(8) to 2.0 x 10(10) cells liter(-1) day(-1)), indicating that viral activity is linked to the overall seasonal fluctuations in biotic activity. Interestingly, while prokaryotic abundance was lowest in the coastal Weddell Sea, levels of bacterial and lytic viral production (4.3 x 10(8) to 1.7 x 10(10) cells liter(-1) day(-1)) in this area were similar to those of the other zones. This may explain the weak relationship between the distribution of prokaryotes and chlorophyll in the Weddell Sea, as a high turnover of prokaryotic biomass may have been stimulated by the availability of substrates in the form of viral lysate. With estimated carbon and iron releases of 0.02 to 7.5 mu g liter(-1) day(-1) and 1.5 to 175.7 pg day(-1), respectively, viral activity in the Southern Ocean is shown to be a major contributor to satisfying the elemental requirements of microbes, notably prokaryotes in the Weddell Sea and phytoplankton in the sub-Antarctic zone. Article in Journal/Newspaper Antarc* Antarctic Drake Passage Southern Ocean Weddell Sea NIOZ Repository (Royal Netherlands Institute for Sea Research) Antarctic Southern Ocean The Antarctic Weddell Sea Drake Passage Weddell Greenwich Applied and Environmental Microbiology 78 18 6741 6748 |
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NIOZ Repository (Royal Netherlands Institute for Sea Research) |
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ftnioz |
language |
English |
description |
Lytic and lysogenic viral infection was investigated throughout the Southern Ocean at sites spanning the sub-Antarctic zone, the Antarctic Circumpolar Current, and an Antarctic continental sea. Higher lytic virus activity was recorded in the more productive sub-Antarctic zone than in the iron-limited waters of the Antarctic Circumpolar Current during two transects. Reduced lytic viral activity in the Antarctic Circumpolar Current was combined with a shift toward lysogenic infection, probably resulting from the lower concentration of potential prokaryotic hosts. Superimposed on this variation, lytic viral production was lower in a transect completed in the Drake Passage in autumn (1.8 x 10(8) to 1.5 x 10(9) liter(-1) day(-1)) than over the Greenwich Meridian during summer (5.1 x 10(8) to 2.0 x 10(10) cells liter(-1) day(-1)), indicating that viral activity is linked to the overall seasonal fluctuations in biotic activity. Interestingly, while prokaryotic abundance was lowest in the coastal Weddell Sea, levels of bacterial and lytic viral production (4.3 x 10(8) to 1.7 x 10(10) cells liter(-1) day(-1)) in this area were similar to those of the other zones. This may explain the weak relationship between the distribution of prokaryotes and chlorophyll in the Weddell Sea, as a high turnover of prokaryotic biomass may have been stimulated by the availability of substrates in the form of viral lysate. With estimated carbon and iron releases of 0.02 to 7.5 mu g liter(-1) day(-1) and 1.5 to 175.7 pg day(-1), respectively, viral activity in the Southern Ocean is shown to be a major contributor to satisfying the elemental requirements of microbes, notably prokaryotes in the Weddell Sea and phytoplankton in the sub-Antarctic zone. |
format |
Article in Journal/Newspaper |
author |
Evans, C. Brussaard, C.P.D. |
spellingShingle |
Evans, C. Brussaard, C.P.D. Regional Variation in Lytic and Lysogenic Viral Infection in the Southern Ocean and Its Contribution to Biogeochemical Cycling |
author_facet |
Evans, C. Brussaard, C.P.D. |
author_sort |
Evans, C. |
title |
Regional Variation in Lytic and Lysogenic Viral Infection in the Southern Ocean and Its Contribution to Biogeochemical Cycling |
title_short |
Regional Variation in Lytic and Lysogenic Viral Infection in the Southern Ocean and Its Contribution to Biogeochemical Cycling |
title_full |
Regional Variation in Lytic and Lysogenic Viral Infection in the Southern Ocean and Its Contribution to Biogeochemical Cycling |
title_fullStr |
Regional Variation in Lytic and Lysogenic Viral Infection in the Southern Ocean and Its Contribution to Biogeochemical Cycling |
title_full_unstemmed |
Regional Variation in Lytic and Lysogenic Viral Infection in the Southern Ocean and Its Contribution to Biogeochemical Cycling |
title_sort |
regional variation in lytic and lysogenic viral infection in the southern ocean and its contribution to biogeochemical cycling |
publishDate |
2012 |
url |
http://imis.nioz.nl/imis.php?module=ref&refid=231013 |
geographic |
Antarctic Southern Ocean The Antarctic Weddell Sea Drake Passage Weddell Greenwich |
geographic_facet |
Antarctic Southern Ocean The Antarctic Weddell Sea Drake Passage Weddell Greenwich |
genre |
Antarc* Antarctic Drake Passage Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Drake Passage Southern Ocean Weddell Sea |
op_source |
%3Ci%3EAppl.+Environ.+Microbiol.+78%2818%29%3C%2Fi%3E%3A+6741-6748.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1128%2FAEM.01388-12%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1128%2FAEM.01388-12%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000308336400043 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1128/AEM.01388-12 http://imis.nioz.nl/imis.php?module=ref&refid=231013 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1128/AEM.01388-12 |
container_title |
Applied and Environmental Microbiology |
container_volume |
78 |
container_issue |
18 |
container_start_page |
6741 |
op_container_end_page |
6748 |
_version_ |
1766248035103277056 |