Unexpected prevalence of parasite 18S rDNA sequences in winter among Antarctic marine protists
Parasites are not typically considered to be important components of polar marine ecosystems. It was therefore surprising when 18S rDNA surveys of protists in the West Antarctic Peninsula in winter revealed high abundances of parasite sequences. Parasite sequences made up, on average, over half (52%...
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2016
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Online Access: | http://plymsea.ac.uk/id/eprint/7224/ https://doi.org/10.1093/plankt/fbw005 |
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ftplymouthml:oai:plymsea.ac.uk:7224 2023-05-15T13:57:46+02:00 Unexpected prevalence of parasite 18S rDNA sequences in winter among Antarctic marine protists Cleary, AC Durbin, EG 2016-02-23 http://plymsea.ac.uk/id/eprint/7224/ https://doi.org/10.1093/plankt/fbw005 unknown Oxford University Press Cleary, AC; Durbin, EG. 2016 Unexpected prevalence of parasite 18S rDNA sequences in winter among Antarctic marine protists. Journal of Plankton Research, 38 (3). 401-417. https://doi.org/10.1093/plankt/fbw005 <https://doi.org/10.1093/plankt/fbw005> Publication - Article PeerReviewed 2016 ftplymouthml https://doi.org/10.1093/plankt/fbw005 2022-09-13T05:48:56Z Parasites are not typically considered to be important components of polar marine ecosystems. It was therefore surprising when 18S rDNA surveys of protists in the West Antarctic Peninsula in winter revealed high abundances of parasite sequences. Parasite sequences made up, on average, over half (52%) of sequence reads in samples from deep water in winter. Winter surface water and sediment samples contained relatively fewer, but still strikingly high, parasite sequence reads (13 and 9%, respectively), while surface water samples in summer contained fewer parasite sequences (1.8%). A total of 1028 distinct parasite Operational Taxonomic Units were observed in winter, with the largest abundances and diversities within Syndiniales groups I and II, including Amoebophrya. Less abundant parasite sequence groups included Apicomplexa, Blastodinium, Chytriodinium, Cryptocaryon, Paradinium, Perkinsidae, Pirsonia and Ichthyophonae. Parasite sequence distributions suggested interactions with known hosts, such as diatom parasites which were mainly in the sediments, where resting spores of Chaetoceros spp. diatoms were abundant. Syndiniales sequences were correlated with radiolarian sequences, suggesting parasite–host interactions. The abundant proportions of parasite sequences indicate a potentially important role for parasites in the Antarctic marine ecosystem, with implications for plankton population dynamics, the role of the microbial loop, carbon flows and ecosystem responses to ongoing anthropogenic climate change. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML) Antarctic Antarctic Peninsula The Antarctic Journal of Plankton Research 38 3 401 417 |
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Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML) |
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description |
Parasites are not typically considered to be important components of polar marine ecosystems. It was therefore surprising when 18S rDNA surveys of protists in the West Antarctic Peninsula in winter revealed high abundances of parasite sequences. Parasite sequences made up, on average, over half (52%) of sequence reads in samples from deep water in winter. Winter surface water and sediment samples contained relatively fewer, but still strikingly high, parasite sequence reads (13 and 9%, respectively), while surface water samples in summer contained fewer parasite sequences (1.8%). A total of 1028 distinct parasite Operational Taxonomic Units were observed in winter, with the largest abundances and diversities within Syndiniales groups I and II, including Amoebophrya. Less abundant parasite sequence groups included Apicomplexa, Blastodinium, Chytriodinium, Cryptocaryon, Paradinium, Perkinsidae, Pirsonia and Ichthyophonae. Parasite sequence distributions suggested interactions with known hosts, such as diatom parasites which were mainly in the sediments, where resting spores of Chaetoceros spp. diatoms were abundant. Syndiniales sequences were correlated with radiolarian sequences, suggesting parasite–host interactions. The abundant proportions of parasite sequences indicate a potentially important role for parasites in the Antarctic marine ecosystem, with implications for plankton population dynamics, the role of the microbial loop, carbon flows and ecosystem responses to ongoing anthropogenic climate change. |
format |
Article in Journal/Newspaper |
author |
Cleary, AC Durbin, EG |
spellingShingle |
Cleary, AC Durbin, EG Unexpected prevalence of parasite 18S rDNA sequences in winter among Antarctic marine protists |
author_facet |
Cleary, AC Durbin, EG |
author_sort |
Cleary, AC |
title |
Unexpected prevalence of parasite 18S rDNA sequences in winter among Antarctic marine protists |
title_short |
Unexpected prevalence of parasite 18S rDNA sequences in winter among Antarctic marine protists |
title_full |
Unexpected prevalence of parasite 18S rDNA sequences in winter among Antarctic marine protists |
title_fullStr |
Unexpected prevalence of parasite 18S rDNA sequences in winter among Antarctic marine protists |
title_full_unstemmed |
Unexpected prevalence of parasite 18S rDNA sequences in winter among Antarctic marine protists |
title_sort |
unexpected prevalence of parasite 18s rdna sequences in winter among antarctic marine protists |
publisher |
Oxford University Press |
publishDate |
2016 |
url |
http://plymsea.ac.uk/id/eprint/7224/ https://doi.org/10.1093/plankt/fbw005 |
geographic |
Antarctic Antarctic Peninsula The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_relation |
Cleary, AC; Durbin, EG. 2016 Unexpected prevalence of parasite 18S rDNA sequences in winter among Antarctic marine protists. Journal of Plankton Research, 38 (3). 401-417. https://doi.org/10.1093/plankt/fbw005 <https://doi.org/10.1093/plankt/fbw005> |
op_doi |
https://doi.org/10.1093/plankt/fbw005 |
container_title |
Journal of Plankton Research |
container_volume |
38 |
container_issue |
3 |
container_start_page |
401 |
op_container_end_page |
417 |
_version_ |
1766265653582364672 |