Data

Molecular Taxonomy of an Antarctic, Mycoplasma-like Organism: Sequence of the 16S Ribosomal RNA Gene

Australian Antarctic Data Centre
FRANZMANN, PETER
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://data.aad.gov.au/metadata/records/ASAC_504&rft.title=Molecular Taxonomy of an Antarctic, Mycoplasma-like Organism: Sequence of the 16S Ribosomal RNA Gene&rft.identifier=https://data.aad.gov.au/metadata/records/ASAC_504&rft.publisher=Australian Antarctic Data Centre&rft.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.&rft.creator=FRANZMANN, PETER &rft.date=2000&rft.coverage=northlimit=-68.4718; southlimit=-68.4719; westlimit=78.1878; eastLimit=78.1879; projection=WGS84&rft.coverage=northlimit=-68.4718; southlimit=-68.4719; westlimit=78.1878; eastLimit=78.1879; projection=WGS84&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_504 when using these data.&rft_subject=biota&rft_subject=inlandWaters&rft_subject=BACTERIA/ARCHAEA&rft_subject=EARTH SCIENCE&rft_subject=BIOLOGICAL CLASSIFICATION&rft_subject=LAKES&rft_subject=BIOSPHERE&rft_subject=AQUATIC ECOSYSTEMS&rft_subject=ACE LAKE&rft_subject=ANAEROPLASMA&rft_subject=ANEROBIC BACTERIUM&rft_subject=ANTARCTICA&rft_subject=METHANOGENIC&rft_subject=MOLLICUTES&rft_subject=MYCOPLASMA&rft_subject=PSYCHROPHILE&rft_subject=RNA&rft_subject=CONTINENT > ANTARCTICA > Vestfold Hills&rft_subject=GEOGRAPHIC REGION > POLAR&rft_place=Hobart&rft.type=dataset&rft.language=English Access the data
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This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_504 when using these data.

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A pdf copy of one of the papers arising from this project is available for download for AAD staff only from the provided URL.

Brief 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.

Issued: 2000-07-31

Data time period: 1991-09-30 to 1992-03-31

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78.1879,-68.4718 78.1879,-68.4719 78.1878,-68.4719 78.1878,-68.4718 78.1879,-68.4718

78.18785,-68.47185

text: northlimit=-68.4718; southlimit=-68.4719; westlimit=78.1878; eastLimit=78.1879; projection=WGS84

Subjects
ACE LAKE | ANAEROPLASMA | ANEROBIC BACTERIUM | ANTARCTICA | AQUATIC ECOSYSTEMS | BACTERIA/ARCHAEA | BIOLOGICAL CLASSIFICATION | BIOSPHERE | CONTINENT > ANTARCTICA > Vestfold Hills | EARTH SCIENCE | GEOGRAPHIC REGION > POLAR | LAKES | METHANOGENIC | MOLLICUTES | MYCOPLASMA | PSYCHROPHILE | RNA | biota | inlandWaters |

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AU-ANL:PEAU : http://nla.gov.au/nla.party-617536

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