Antarctic Peninsula Bacterioplankton 16S rRNA gene surveys and metagenomes from Winter 2002 and Summer 2006.

Somente metadatos
Versão mais recente published by SCAR - Microbial Antarctic Resource System on mar 19, 2019 SCAR - Microbial Antarctic Resource System
Início:
http://genex2.dri.edu/index.php
Publication date:
19 de março de 2019
Licença:
CC-BY 4.0

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Descrição

Antarctic surface oceans are well-studied during summer when irradiance levels are high, sea ice is melting and primary productivity is at a maximum. Coincident with this timing, the bacterioplankton respond with significant increases in secondary productivity. Little is known about bacterioplankton in winter when darkness and sea-ice cover inhibit photoautotrophic primary production. We report here an environmental genomic and small subunit ribosomal RNA (SSU rRNA) analysis of winter and summer Antarctic Peninsula coastal seawater bacterioplankton. Intense inter-seasonal differences were reflected through shifts in community composition and functional capacities encoded in winter and summer environmental genomes with significantly higher phylogenetic and functional diversity in winter. In general, inferred metabolisms of summer bacterioplankton were characterized by chemoheterotrophy, photoheterotrophy and aerobic anoxygenic photosynthesis while the winter community included the capacity for bacterial and archaeal chemolithoautotrophy. Chemolithoautotrophic pathways were dominant in winter and were similar to those recently reported in global‘dark ocean’ mesopelagic waters. If chemolithoautotrophy is widespread in the Southern Ocean in winter, this process may be a previously unaccounted carbon sink and may help account for the unexplained anomalies in surface inorganic nitrogen content.

Versões

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Como citar

Pesquisadores deveriam citar esta obra da seguinte maneira:

Murray, AE and JJ Grzymski. 2007. Diversity and genomics of Antarctic marine microorganisms. Phil. Trans. Roy. Soc. Ser. B. 362:2259-2271.

Direitos

Pesquisadores devem respeitar a seguinte declaração de direitos:

O editor e o detentor dos direitos deste trabalho é SCAR - Microbial Antarctic Resource System. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF Registration

Este recurso foi registrado no GBIF e atribuído ao seguinte GBIF UUID: 2cc6227c-a416-4928-bd1f-8458741b8377.  SCAR - Microbial Antarctic Resource System publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por Scientific Committee on Antarctic Research.

Palavras-chave

Bacterioplankton; Antarctic Peninsula; 16S rRNA; metagenome; marine; archaea; bacteria; summer; winter; Other

Contatos

Alison Murray
  • Provedor Dos Metadados ●
  • Originador ●
  • Ponto De Contato ●
  • Pesquisador Principal
  • Associate Research Professor
DRI
  • 2215 Raggio Parkway
89512 Reno
NV
US
  • 775 673 7361
Joseph Grzymski
  • Pesquisador Principal
  • Assistant Research Professor
DRI
  • 2215 Raggio Parkway
89512 Reno
NV
US
  • 775 673 7478

Cobertura Geográfica

Samples were collected in the nearshore region of Anvers Island, near Palmer Station.

Coordenadas delimitadoras Sul Oeste [-64,78, -64,07], Norte Leste [-64,77, -64,05]

Cobertura Taxonômica

Plankton surveys of community structure were conducted of those organisms passing through a 1.6 micron glass fiber filter.

Domínio Archaea, Bacteria

Cobertura Temporal

Data Inicial 2002-08-20
Data Inicial 2006-02-28
Data Inicial 2002-01-17
Data Inicial 2002-07-17

Dados Sobre o Projeto

Nenhuma descrição disponível

Título IPY Antarctic Peninsula Bacterioplankton
Financiamento NSF ANT 0632278 supported the researchers and Antarctic expeditions and DOE JGI Community Sequencing Program supported the metagenome and Sanger sequencing of 16S rRNA gene libraries; Pyrosequencing was provided by the International Census of Marine Microbes (ICoMM) with financial support from a W. M. Keck foundation award to the Marine Biological Laboratory in Woods Hole.
Descrição da Área de Estudo Seawater (1.6 - 0.2 micron fraction) sampled off of Anvers Island, Antarctic Peninsula.
Descrição do Design Samples were collected from surface waters on 12 occasions over the annual cycle in 2002 and in late February in 2006. The samples from 2002 were all analyzed by PCR-DGGE (Murray and Grzymski, 2007) and 3 samples were selected for Roche 454 tag sequencing targeting bacteria. In addition, the sample from 20 August 2002 was selected for (i) 16S rRNA gene clone library sequencing for bacteria and archaea; and (ii) for metagenome sequencing in which a large insert (40 kb) library was prepared and end sequences were determined for ~ 20K clones. Selected clones (~ 96) were then fully sequenced. In 2006 samples were collected at the end of February, in which we selected a sample from 28 February 2006 for 16S rRNA gene clone library sequencing for bacteria and archaea; in addition a metagenome sequencing effort was conducted in which a large insert (40 kb) library was prepared and end sequences were determined for ~ 20K clones. Selected clones (~ 96) were then fully sequenced.

O pessoal envolvido no projeto:

Alison Murray
  • Pesquisador Principal

Métodos de Amostragem

Seawater was collected by submersible pump and filtered at the Station, see Grzymski et al. 2012 for details.

Área de Estudo See Geographic coverage
Controle de Qualidade Sanger sequence data was automatically assembled and chimera checked; metagenome sequence data was automatically annotated at the Joint Genome Institute (see Grzymski et al. 2012).

Descrição dos passos do método:

  1. A MICROBIAL_SEQUENCE_SET Description file describing 9 data sets was uploaded to the IPT. 9 MIMARKS data files were uploaded to the IPT.

Citações bibliográficas

  1. Grzymski, JJ, CS Riesenfeld , TJ Williams, AM Dussaq, H Ducklow, M Erickson, R Cavicchioli, & AE Murray. 2012. A metagenomic assessment of winter and summer bacterioplankton from Antarctic Peninsula coastal surface waters. ISME Journal. DOI:10.1038/ismej.2012.31
  2. Ghiglione, JF, and AE Murray. 2012. Pronounced summer to winter differences and higher wintertime richness in coastal Antarctic marine bacterioplankton. Environ. Microbiol. 14(3): 617-629. DOI:10.1111/j.1462-2920.2011.02601.x
  3. Williams, TJ, E Long, F Evans, MZ DeMaere, FM Lauro, MJ Raftery, H Ducklow, JJ Grzymski, AE Murray, R Cavicchioli. 2012. A metaproteomic assessment of summer and winter bacterioplankton from Antarctic Peninsula coastal surface waters. ISME Journal 6:1883-1900. doi: 10.1038/ismej.2012.28