WFRF:(DeLong Edward F)
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- Pelve, Erik A.,1980-Uppsala universitet,Molekylär evolution (författare)
Bacterial Succession on Sinking Particles in the Ocean's Interior
- Artikel/kapitelEngelska2017
Förlag, utgivningsår, omfång ...
- 2017-11-24
- Frontiers Media SA,2017
- electronicrdacarrier
Nummerbeteckningar
- LIBRIS-ID:oai:DiVA.org:uu-361234
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-361234URI
- https://doi.org/10.3389/fmicb.2017.02269DOI
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- Språk:engelska
- Sammanfattning på:engelska
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- SwePubSwePub
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- Sinking particles formed in the photic zone and moving vertically through the water column are a main mechanism for nutrient transport to the deep ocean, and a key component of the biological carbon pump. The particles appear to be processed by a microbial community substantially different from the surrounding waters. Single cell genomics and metagenomics were employed to describe the succession of dominant bacterial groups during particle processing. Sinking particles were extracted from sediment traps at Station Aloha in the North Pacific Subtropical Gyre (NPSG) during two different trap deployments conducted in July and August 2012. The microbial communities in poisoned vs. live sediment traps differed significantly from one another, consistent with prior observations by Fontanez et al. (2015). Partial genomes from these communities were sequenced from cells belonging to the genus Arcobacter (commensalists potentially associated with protists such as Radiolaria), and Vibrio carnpbellii (a group previously reported to be associated with crustacea). These bacteria were found in the particle-associated communities at specific depths in both trap deployments, presumably due to their specific host-associations. Partial genomes were also sequenced from cells belonging to Idiomarina and Kangiella that were enriched in live traps over a broad depth range, that represented a motile copiotroph and a putatively non-motile algicidal saprophyte, respectively. Planktonic bacterial cells most likely caught in the wake of the particles belonging to Actinomarina and the SAR11 Glade were also sequenced. Our results suggest that similar groups of eukaryote-associated bacteria are consistently found on sinking particles at different times, and that particle remineralization involves specific, reproducible bacterial succession events in oligotrophic ocean waters.
Ämnesord och genrebeteckningar
- NATURVETENSKAP Biologi Mikrobiologi hsv//swe
- NATURAL SCIENCES Biological Sciences Microbiology hsv//eng
- marine bacteria
- oligotrophic gyre
- metagenomics
- marine particles
- sediment trap
- biological pump
- single cell genomics
Biuppslag (personer, institutioner, konferenser, titlar ...)
- Fontanez, Kristina M.Fluid Screen Inc, Cambridge, MA USA;MIT, Dept Civil & Environm Engn, 77 Massachusetts Ave, Cambridge, MA 02139 USA (författare)
- DeLong, Edward F.Univ Hawaii Manoa, Dept Oceanog, Daniel K Inoue Ctr Microbial Oceanog Res & Educ, Honolulu, HI 96822 USA (författare)
- Uppsala universitetMolekylär evolution (creator_code:org_t)
Sammanhörande titlar
- Ingår i:Frontiers in Microbiology: Frontiers Media SA81664-302X
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