Pigmented microbial eukaryotes fuel the deep sea carbon pool in the tropical Western Pacific Ocean.

Hdl Handle:
http://hdl.handle.net/10141/622404
Title:
Pigmented microbial eukaryotes fuel the deep sea carbon pool in the tropical Western Pacific Ocean.
Authors:
Xu, D; Sun, P; Zhang, Y; Li, R; Huang, B; Jiao, N; Warren, A ( 0000-0001-7869-4581 ) ; Wang, L
Abstract:
Phototrophic microbial eukaryotes dominate primary production over large oceanic regions. Due to their small sizes and slow sinking rates, it is assumed they contribute relatively little to the downward export of organic carbon via the biological pump. Therefore, the community structure of phototrophic cells in the deep ocean has long been overlooked and remains largely unknown. In this study, we used an integrative approach, including epifluorescence microscopy, sequencing of 18S rRNA and photosystem-II psbA gene transcripts, to investigate phototrophic microbial eukaryotes in samples collected from the tropical Western Pacific Ocean. It was found that: (i) pigmented nano-sized eukaryotes (PNEs) are ubiquitous in the deep Western Pacific Ocean down to 5000 m depth; (ii) the PNE community is dominated by cells 2-5 μm in size; (iii) their abundance is significant, averaging 4 ± 1 (± s.e.) cells ml-1 in waters below 1000 m which is comparable to that of heterotrophic nanoflagellates; (iv) the active pigmented microbial eukaryotes in the deep waters are highly diverse and dominated by Haptophyta followed by Chlorophyta and Bacillariophyta; (v) PNEs in deep waters were likely transported from surface ocean by various fast-sinking mechanisms, thus contributing to the biological pump and fuelling the deep-sea communities by supplying fresh organic carbon.
Citation:
Xu, D. , Sun, P. , Zhang, Y. , Li, R. , Huang, B. , Jiao, N. , Warren, A. and Wang, L. (2018), Pigmented microbial eukaryotes fuel the deep sea carbon pool in the tropical Western Pacific Ocean. Environ Microbiol. Accepted Author Manuscript. . doi:10.1111/1462-2920.14396
Journal:
Environ Microbiol
Issue date:
29-Aug-2018
URI:
http://hdl.handle.net/10141/622404
DOI:
10.1111/1462-2920.14396
Submitted date:
2018-09-09
Type:
Journal Article
Item Description:
This is the peer reviewed version of the following article: Xu, D. , Sun, P. , Zhang, Y. , Li, R. , Huang, B. , Jiao, N. , Warren, A. and Wang, L. (2018), Pigmented microbial eukaryotes fuel the deep sea carbon pool in the tropical Western Pacific Ocean. Environ Microbiol. Accepted Author Manuscript. . doi:10.1111/1462-2920.14396, which has been published in final form at https://doi.org/10.1111/1462-2920.14396. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Subject Terms:
phototrophic microbial eukaryotes; Western Pacific Ocean; gene sequencing; fast sinking mechanisms; deep sea communities; nutrient cycling
EISSN:
1462-2920
Appears in Collections:
Life sciences

Full metadata record

DC FieldValue Language
dc.contributor.authorXu, Den
dc.contributor.authorSun, Pen
dc.contributor.authorZhang, Yen
dc.contributor.authorLi, Ren
dc.contributor.authorHuang, Ben
dc.contributor.authorJiao, Nen
dc.contributor.authorWarren, Aen
dc.contributor.authorWang, Len
dc.date.accessioned2018-09-18T14:52:59Z-
dc.date.available2018-09-18T14:52:59Z-
dc.date.issued2018-08-29en_US
dc.date.submitted2018-09-09-
dc.identifier.citationXu, D. , Sun, P. , Zhang, Y. , Li, R. , Huang, B. , Jiao, N. , Warren, A. and Wang, L. (2018), Pigmented microbial eukaryotes fuel the deep sea carbon pool in the tropical Western Pacific Ocean. Environ Microbiol. Accepted Author Manuscript. . doi:10.1111/1462-2920.14396en
dc.identifier.doi10.1111/1462-2920.14396en_US
dc.identifier.urihttp://hdl.handle.net/10141/622404-
dc.description.abstractPhototrophic microbial eukaryotes dominate primary production over large oceanic regions. Due to their small sizes and slow sinking rates, it is assumed they contribute relatively little to the downward export of organic carbon via the biological pump. Therefore, the community structure of phototrophic cells in the deep ocean has long been overlooked and remains largely unknown. In this study, we used an integrative approach, including epifluorescence microscopy, sequencing of 18S rRNA and photosystem-II psbA gene transcripts, to investigate phototrophic microbial eukaryotes in samples collected from the tropical Western Pacific Ocean. It was found that: (i) pigmented nano-sized eukaryotes (PNEs) are ubiquitous in the deep Western Pacific Ocean down to 5000 m depth; (ii) the PNE community is dominated by cells 2-5 μm in size; (iii) their abundance is significant, averaging 4 ± 1 (± s.e.) cells ml-1 in waters below 1000 m which is comparable to that of heterotrophic nanoflagellates; (iv) the active pigmented microbial eukaryotes in the deep waters are highly diverse and dominated by Haptophyta followed by Chlorophyta and Bacillariophyta; (v) PNEs in deep waters were likely transported from surface ocean by various fast-sinking mechanisms, thus contributing to the biological pump and fuelling the deep-sea communities by supplying fresh organic carbon.en_US
dc.language.isoengen_US
dc.rightsembargoedAccessen
dc.titlePigmented microbial eukaryotes fuel the deep sea carbon pool in the tropical Western Pacific Ocean.en_US
dc.typeJournal Article-
dc.identifier.eissn1462-2920en_US
dc.identifier.journalEnviron Microbiolen_US
dc.conference.locationEnglanden_US
pubs.organisational-group/Natural History Museum-
pubs.organisational-group/Natural History Museum/Science Group-
pubs.organisational-group/Natural History Museum/Science Group/Functional groups-
pubs.organisational-group/Natural History Museum/Science Group/Functional groups/Research-
pubs.organisational-group/Natural History Museum/Science Group/Functional groups/Research/LS Research-
pubs.organisational-group/Natural History Museum/Science Group/Life Sciences-
dc.embargoNot knownen_US
elements.import.authorXu, Den_US
elements.import.authorSun, Pen_US
elements.import.authorZhang, Yen_US
elements.import.authorLi, Ren_US
elements.import.authorHuang, Ben_US
elements.import.authorJiao, Nen_US
elements.import.authorWarren, Aen_US
elements.import.authorWang, Len_US
dc.description.nhmThis is the peer reviewed version of the following article: Xu, D. , Sun, P. , Zhang, Y. , Li, R. , Huang, B. , Jiao, N. , Warren, A. and Wang, L. (2018), Pigmented microbial eukaryotes fuel the deep sea carbon pool in the tropical Western Pacific Ocean. Environ Microbiol. Accepted Author Manuscript. . doi:10.1111/1462-2920.14396, which has been published in final form at https://doi.org/10.1111/1462-2920.14396. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.en
dc.subject.nhmphototrophic microbial eukaryotesen
dc.subject.nhmWestern Pacific Oceanen
dc.subject.nhmgene sequencingen
dc.subject.nhmfast sinking mechanismsen
dc.subject.nhmdeep sea communitiesen
dc.subject.nhmnutrient cyclingen
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