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Abundance of Two Pelagibacter ubique Bacteriophage Genotypes along a Latitudinal Transect in the North and South Atlantic Oceans
This study characterizes viral and bacterial dynamics along a latitudinal transect in the Atlantic Ocean from approximately 10 N–40 S. Overall viral abundance decreased with depth, on average there were 1.64 ± 0.71 × 10(7) virus like particles (VLPs) in surface waters, decreasing to an average of 6....
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2016
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5039313/ https://www.ncbi.nlm.nih.gov/pubmed/27733846 http://dx.doi.org/10.3389/fmicb.2016.01534 |
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author | Eggleston, Erin M. Hewson, Ian |
author_facet | Eggleston, Erin M. Hewson, Ian |
author_sort | Eggleston, Erin M. |
collection | PubMed |
description | This study characterizes viral and bacterial dynamics along a latitudinal transect in the Atlantic Ocean from approximately 10 N–40 S. Overall viral abundance decreased with depth, on average there were 1.64 ± 0.71 × 10(7) virus like particles (VLPs) in surface waters, decreasing to an average of 6.50 ± 2.26 × 10(5) VLPs in Antarctic Bottom Water. This decrease was highly correlated to bacterial abundance. There are six major water masses in the Southern Tropical Atlantic Ocean, and inclusion of water mass, temperature and salinity variables explained a majority of the variation in total viral abundance. Recent discovery of phages infecting bacteria of the SAR11 clade of Alphaproteobacteria (i.e., pelagiphages) leads to intriguing questions about the roles they play in shaping epipelagic communities. Viral-size fraction DNA from epipelagic water was used to quantify the abundance of two pelagiphages, using pelagiphage-specific quantitative PCR primers and probes along the transect. We found that HTVC010P, a member of a podoviridae sub-family, was most abundant in surface waters. Copy numbers ranged from an average of 1.03 ± 2.38 × 10(5) copies ml(−1) in surface waters, to 5.79 ± 2.86 × 10(3) in the deep chlorophyll maximum. HTVC008M, a T4-like myovirus, was present in the deep chlorophyll maximum (5.42 ± 2.8 × 10(3) copies ml(−1) on average), although it was not as highly abundant as HTVC010P in surface waters (6.05 ± 3.01 × 10(3) copies ml(−1) on average). Interestingly, HTVC008M was only present at a few of the most southern stations, suggesting latitudinal biogeography of SAR11 phages. |
format | Online Article Text |
id | pubmed-5039313 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-50393132016-10-12 Abundance of Two Pelagibacter ubique Bacteriophage Genotypes along a Latitudinal Transect in the North and South Atlantic Oceans Eggleston, Erin M. Hewson, Ian Front Microbiol Microbiology This study characterizes viral and bacterial dynamics along a latitudinal transect in the Atlantic Ocean from approximately 10 N–40 S. Overall viral abundance decreased with depth, on average there were 1.64 ± 0.71 × 10(7) virus like particles (VLPs) in surface waters, decreasing to an average of 6.50 ± 2.26 × 10(5) VLPs in Antarctic Bottom Water. This decrease was highly correlated to bacterial abundance. There are six major water masses in the Southern Tropical Atlantic Ocean, and inclusion of water mass, temperature and salinity variables explained a majority of the variation in total viral abundance. Recent discovery of phages infecting bacteria of the SAR11 clade of Alphaproteobacteria (i.e., pelagiphages) leads to intriguing questions about the roles they play in shaping epipelagic communities. Viral-size fraction DNA from epipelagic water was used to quantify the abundance of two pelagiphages, using pelagiphage-specific quantitative PCR primers and probes along the transect. We found that HTVC010P, a member of a podoviridae sub-family, was most abundant in surface waters. Copy numbers ranged from an average of 1.03 ± 2.38 × 10(5) copies ml(−1) in surface waters, to 5.79 ± 2.86 × 10(3) in the deep chlorophyll maximum. HTVC008M, a T4-like myovirus, was present in the deep chlorophyll maximum (5.42 ± 2.8 × 10(3) copies ml(−1) on average), although it was not as highly abundant as HTVC010P in surface waters (6.05 ± 3.01 × 10(3) copies ml(−1) on average). Interestingly, HTVC008M was only present at a few of the most southern stations, suggesting latitudinal biogeography of SAR11 phages. Frontiers Media S.A. 2016-09-28 /pmc/articles/PMC5039313/ /pubmed/27733846 http://dx.doi.org/10.3389/fmicb.2016.01534 Text en Copyright © 2016 Eggleston and Hewson. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Microbiology Eggleston, Erin M. Hewson, Ian Abundance of Two Pelagibacter ubique Bacteriophage Genotypes along a Latitudinal Transect in the North and South Atlantic Oceans |
title | Abundance of Two Pelagibacter ubique Bacteriophage Genotypes along a Latitudinal Transect in the North and South Atlantic Oceans |
title_full | Abundance of Two Pelagibacter ubique Bacteriophage Genotypes along a Latitudinal Transect in the North and South Atlantic Oceans |
title_fullStr | Abundance of Two Pelagibacter ubique Bacteriophage Genotypes along a Latitudinal Transect in the North and South Atlantic Oceans |
title_full_unstemmed | Abundance of Two Pelagibacter ubique Bacteriophage Genotypes along a Latitudinal Transect in the North and South Atlantic Oceans |
title_short | Abundance of Two Pelagibacter ubique Bacteriophage Genotypes along a Latitudinal Transect in the North and South Atlantic Oceans |
title_sort | abundance of two pelagibacter ubique bacteriophage genotypes along a latitudinal transect in the north and south atlantic oceans |
topic | Microbiology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5039313/ https://www.ncbi.nlm.nih.gov/pubmed/27733846 http://dx.doi.org/10.3389/fmicb.2016.01534 |
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