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Delineation of simple microecosystems associated with the quartz stone habitat in the Vestfold Hills

Entry ID: ASAC_992

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Summary

Abstract: Quartz stone sublithic microbial communities and underlying soil, retrieved from the Vestfold Hills were investigated using a variety of traditional and molecular methods. Although direct epifluorescent counts of the sublithic biota averaged 1.1 x 109 cells g-1 dry weight and underlying soil, 0.5 x 109 cells g-1 dry weight, viable counts were on average 3-orders of magnitude higher in sublithic ... samples cf. underlying soil. Enrichment and molecular analyses revealed the predominant cyanobacteria were non-halophilic, able to grow optimally at 15-20 degrees C, and were related to the Phormidium subgroup with several distinct morphotypess and phylotypes present. Sublithic heterotrophic bacterial populations and those of underlying soils included mostly psychrotolerant taxa typical of Antarctic soil. However, psychrophilic and halophilic bacteria, mostly members of the alpha subdivision of the Proteobacteria and the order Cytophagales, were abundant in the sublithic growth (20-40% of the viable count and about 50% of isolated individual taxa) but absent from underlying soils. It is suggested that quartz stone subliths might constitute a 'refuge' for psychrophilic bacteria.

The download file contains:
8 files:
File 1. - Sample location data". Lists quartz stones collected for analysis, indicating site location, date of sampling, description of surrounding area and indicates whether or not soil immediately adjacent to the stone was collected.
File 2. - Gross colony diversitydata quartz stone sublith". Indicates colony diversity (indicated by number of grossly different colony types on agar medium used).
File 3. - Strain information quartz stone sublith isolates". Lists strains isolates, including strain designation, stone sample origin, and basic cellular and colonial morphological characteristics.
File 4. - Temperature/salinity response data". ". Lists responses of quartz stone sublith isolates to temperature and tolerance to salinity.
File 5. - Phenotypic data". Lists detailed phenotypic data for select quartz stone sublith isolates.
File 6. - Cell population data quartz stone subliths and soil". Indicates plate count estimates obtained after use of different media (salty, non-salty, dilute, non-dilute) as well as epifluoresecent direct count data for both quartz stone subliths and for immediately adjacent soil not covered by the stone.
File 7. - Bacterial isolate 16S rRNA gene sequence data". " Sequence data for quartz stone sublith derived isolates. All sequences deposited on the GenBank (NCBI) nucleotide database. All sequences are shown in the FASTA format.
File 8. - Cloned 16S rRNA gene sequence data". Sequence data for cloned sequences obtained by direct PCR from quartz stone sublith biofilm . All sequences deposited on the GenBank (NCBI) nucleotide database. All sequences are shown in the FASTA format.

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Geographic Coverage

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Spatial coordinates

N: -68.0

S: -68.5

E: 78.5

W: 78.0

Data Set Citation

Dataset Originator/Creator: GLOBEC

Dataset Title: Zooplankton abundance and population structures assessed during April-September of 2001-2, Southern Ocean, GLOBEC

Temporal Coverage

Start Date: 2001-04-29

Stop Date: 2002-09-01

Location Keywords

OCEAN > SOUTHERN OCEAN

GEOGRAPHIC REGION > POLAR

Science Keywords

BIOSPHERE > AQUATIC ECOSYSTEMS > MARINE HABITAT

ISO Topic Category

BIOTA

ENVIRONMENT

OCEANS

Project

IPY > INTERNATIONAL POLAR YEAR

SCAR-MARBIN > SCAR Marine Biodiversity Information Network

Access Constraints see http://data.scarmarbin.be/duaForm

Use Constraints see http://data.scarmarbin.be/duaForm

Ancillary Keywords

Antarctic Peninsula

Abundance

Data Set Progress

COMPLETE

Originating Center

GLOBEC

Data Center

Marine Biodiversity Information Network, Scientific Committee on Antarctic Research, International Council for Science

Data Center URL: http://www.scarmarbin.be/

Data Center Personnel
Name: BRUNO DANIS Phone: +32(0)2 6274139 Fax: +32(0)2 6274277 Email: bruno.danis at scarmarbin.be Contact Address: Royal Belgian Institute of Natural Sciences 29 Rue Vautier City: Brussels Postal Code: 1000 Country: BELGIUM

Distribution

Distribution Format: www

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Personnel

BRUNO DANIS

Role: INVESTIGATOR

Phone: +32(0)2 6274139

Fax: +32(0)2 6274277

Email: bruno.danis at scarmarbin.be

Contact Address:

Royal Belgian Institute of Natural Sciences

29 Rue Vautier

City: Brussels

Postal Code: 1000

Country: BELGIUM

BRUNO DANIS

Role: DIF AUTHOR

Phone: +32(0)2 6274139

Fax: +32(0)2 6274277

Email: bruno.danis at scarmarbin.be

Contact Address:

Royal Belgian Institute of Natural Sciences

29 Rue Vautier

City: Brussels

Postal Code: 1000

Country: BELGIUM

Publications/References

Zooplankton abundance and population structures were assessed during April-September of 2001-2, Southern Ocean, GLOBEC

Creation and Review Dates

DIF Creation Date: 2010-11-02

Last DIF Revision Date: 2010-11-02

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