Molecular Taxonomy of an Antarctic, Mycoplasma-like Organism: Sequence of the 16S Ribosomal RNA Gene
An obligately anaerobic bacterium that lacked a cell wall was isolated from the hypolimnion of Ace Lake, Antarctica. Cells were very pleomorphic, forming cocci, filaments up to 25 micrometres in length, and annular shapes. The organism was morphologically very similar to some members of the class Mo...
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Online Access: | https://researchdata.ands.org.au/molecular-taxonomy-an-rna-gene/700223 https://data.aad.gov.au/metadata/records/ASAC_504 http://nla.gov.au/nla.party-617536 |
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ftands:oai:ands.org.au::700223 2023-05-15T13:46:58+02:00 Molecular Taxonomy of an Antarctic, Mycoplasma-like Organism: Sequence of the 16S Ribosomal RNA Gene FRANZMANN, PETER (hasPrincipalInvestigator) FRANZMANN, PETER (processor) Australian Antarctic Data Centre (publisher) Spatial: northlimit=-68.4718; southlimit=-68.4719; westlimit=78.1878; eastLimit=78.1879; projection=WGS84 Temporal: From 1991-09-30 to 1992-03-31 https://researchdata.ands.org.au/molecular-taxonomy-an-rna-gene/700223 https://data.aad.gov.au/metadata/records/ASAC_504 http://nla.gov.au/nla.party-617536 unknown Australian Antarctic Data Centre https://researchdata.ands.org.au/molecular-taxonomy-an-rna-gene/700223 2d7629da-3750-4e44-9a97-e3d53fbe0490 ASAC_504 https://data.aad.gov.au/metadata/records/ASAC_504 http://nla.gov.au/nla.party-617536 Australian Antarctic Data Centre biota inlandWaters BACTERIA/ARCHAEA EARTH SCIENCE BIOLOGICAL CLASSIFICATION LAKES BIOSPHERE AQUATIC ECOSYSTEMS ACE LAKE ANAEROPLASMA ANEROBIC BACTERIUM ANTARCTICA METHANOGENIC MOLLICUTES MYCOPLASMA PSYCHROPHILE RNA CONTINENT > ANTARCTICA > Vestfold Hills GEOGRAPHIC REGION > POLAR dataset ftands 2020-01-05T21:17:19Z An obligately anaerobic bacterium that lacked a cell wall was isolated from the hypolimnion of Ace Lake, Antarctica. Cells were very pleomorphic, forming cocci, filaments up to 25 micrometres in length, and annular shapes. The organism was morphologically very similar to some members of the class Mollicutes which contains two genera of obligately anaerobic bacteria, Anaeroplasma and Asteroleplasma. Like members of the class, the isolate was resistant to high concentrations of penicillin (1000 Units per millilitre). Similar to Anaeroplasma, the organism had a low DNA G+C content (29.3 +/- 0.4) and produced hydrogen, carbon dioxide, acetic acid, lactic acid and succinic acid from the fermentation of glucose. However, the taxonomic status of the strain remained unclear as, unlike members of the class Mollicutes, the isolate had a relatively large genome size (2.26 +/- 0.11 x 10 to the 9 daltons), did not pass through 0.45 micrometre pore size filters, and did not form typical mycoplasma-like colonies. The organism was psychrophilic with an optimum temperature for growth between 12 degrees C and 13 degrees C. A phenotypic description of the organism is given and the ecological role of the organism is inferred from its phenotype and the characteristics of its Antarctic habitat. Dataset Antarc* Antarctic Antarctica Research Data Australia (Australian National Data Service - ANDS) Antarctic Vestfold Hills Vestfold Ace Lake ENVELOPE(78.188,78.188,-68.472,-68.472) ENVELOPE(78.1878,78.1879,-68.4718,-68.4719) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
biota inlandWaters BACTERIA/ARCHAEA EARTH SCIENCE BIOLOGICAL CLASSIFICATION LAKES BIOSPHERE AQUATIC ECOSYSTEMS ACE LAKE ANAEROPLASMA ANEROBIC BACTERIUM ANTARCTICA METHANOGENIC MOLLICUTES MYCOPLASMA PSYCHROPHILE RNA CONTINENT > ANTARCTICA > Vestfold Hills GEOGRAPHIC REGION > POLAR |
spellingShingle |
biota inlandWaters BACTERIA/ARCHAEA EARTH SCIENCE BIOLOGICAL CLASSIFICATION LAKES BIOSPHERE AQUATIC ECOSYSTEMS ACE LAKE ANAEROPLASMA ANEROBIC BACTERIUM ANTARCTICA METHANOGENIC MOLLICUTES MYCOPLASMA PSYCHROPHILE RNA CONTINENT > ANTARCTICA > Vestfold Hills GEOGRAPHIC REGION > POLAR Molecular Taxonomy of an Antarctic, Mycoplasma-like Organism: Sequence of the 16S Ribosomal RNA Gene |
topic_facet |
biota inlandWaters BACTERIA/ARCHAEA EARTH SCIENCE BIOLOGICAL CLASSIFICATION LAKES BIOSPHERE AQUATIC ECOSYSTEMS ACE LAKE ANAEROPLASMA ANEROBIC BACTERIUM ANTARCTICA METHANOGENIC MOLLICUTES MYCOPLASMA PSYCHROPHILE RNA CONTINENT > ANTARCTICA > Vestfold Hills GEOGRAPHIC REGION > POLAR |
description |
An obligately anaerobic bacterium that lacked a cell wall was isolated from the hypolimnion of Ace Lake, Antarctica. Cells were very pleomorphic, forming cocci, filaments up to 25 micrometres in length, and annular shapes. The organism was morphologically very similar to some members of the class Mollicutes which contains two genera of obligately anaerobic bacteria, Anaeroplasma and Asteroleplasma. Like members of the class, the isolate was resistant to high concentrations of penicillin (1000 Units per millilitre). Similar to Anaeroplasma, the organism had a low DNA G+C content (29.3 +/- 0.4) and produced hydrogen, carbon dioxide, acetic acid, lactic acid and succinic acid from the fermentation of glucose. However, the taxonomic status of the strain remained unclear as, unlike members of the class Mollicutes, the isolate had a relatively large genome size (2.26 +/- 0.11 x 10 to the 9 daltons), did not pass through 0.45 micrometre pore size filters, and did not form typical mycoplasma-like colonies. The organism was psychrophilic with an optimum temperature for growth between 12 degrees C and 13 degrees C. A phenotypic description of the organism is given and the ecological role of the organism is inferred from its phenotype and the characteristics of its Antarctic habitat. |
author2 |
FRANZMANN, PETER (hasPrincipalInvestigator) FRANZMANN, PETER (processor) Australian Antarctic Data Centre (publisher) |
format |
Dataset |
title |
Molecular Taxonomy of an Antarctic, Mycoplasma-like Organism: Sequence of the 16S Ribosomal RNA Gene |
title_short |
Molecular Taxonomy of an Antarctic, Mycoplasma-like Organism: Sequence of the 16S Ribosomal RNA Gene |
title_full |
Molecular Taxonomy of an Antarctic, Mycoplasma-like Organism: Sequence of the 16S Ribosomal RNA Gene |
title_fullStr |
Molecular Taxonomy of an Antarctic, Mycoplasma-like Organism: Sequence of the 16S Ribosomal RNA Gene |
title_full_unstemmed |
Molecular Taxonomy of an Antarctic, Mycoplasma-like Organism: Sequence of the 16S Ribosomal RNA Gene |
title_sort |
molecular taxonomy of an antarctic, mycoplasma-like organism: sequence of the 16s ribosomal rna gene |
publisher |
Australian Antarctic Data Centre |
url |
https://researchdata.ands.org.au/molecular-taxonomy-an-rna-gene/700223 https://data.aad.gov.au/metadata/records/ASAC_504 http://nla.gov.au/nla.party-617536 |
op_coverage |
Spatial: northlimit=-68.4718; southlimit=-68.4719; westlimit=78.1878; eastLimit=78.1879; projection=WGS84 Temporal: From 1991-09-30 to 1992-03-31 |
long_lat |
ENVELOPE(78.188,78.188,-68.472,-68.472) ENVELOPE(78.1878,78.1879,-68.4718,-68.4719) |
geographic |
Antarctic Vestfold Hills Vestfold Ace Lake |
geographic_facet |
Antarctic Vestfold Hills Vestfold Ace Lake |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Australian Antarctic Data Centre |
op_relation |
https://researchdata.ands.org.au/molecular-taxonomy-an-rna-gene/700223 2d7629da-3750-4e44-9a97-e3d53fbe0490 ASAC_504 https://data.aad.gov.au/metadata/records/ASAC_504 http://nla.gov.au/nla.party-617536 |
_version_ |
1766245901784842240 |