Characteristics of a novel, anaerobic, mycoplasma-like bacterium from Ace Lake, Antarctica
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 μm in length, and annular shapes. The organism was morphologically very similar to some members of the class Mollicutes...
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Cambridge University Press (CUP)
1992
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crcambridgeupr:10.1017/s0954102092000245 2024-03-03T08:38:25+00:00 Characteristics of a novel, anaerobic, mycoplasma-like bacterium from Ace Lake, Antarctica Franzmann, P.D. Rohde, M. 1992 http://dx.doi.org/10.1017/s0954102092000245 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102092000245 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 4, issue 2, page 155-162 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 1992 crcambridgeupr https://doi.org/10.1017/s0954102092000245 2024-02-08T08:47:17Z 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 μm 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 ml -1 ). 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 × 10 9 daltons), did not pass through 0.45 μm pore size filters, and did not form typical mycoplasma-like colonies. The organism was psychrophilic with an optimum temperature for growth between 12°C and 13°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. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctica Cambridge University Press Ace Lake ENVELOPE(78.188,78.188,-68.472,-68.472) Antarctic Antarctic Science 4 2 155 162 |
institution |
Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Franzmann, P.D. Rohde, M. Characteristics of a novel, anaerobic, mycoplasma-like bacterium from Ace Lake, Antarctica |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
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 μm 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 ml -1 ). 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 × 10 9 daltons), did not pass through 0.45 μm pore size filters, and did not form typical mycoplasma-like colonies. The organism was psychrophilic with an optimum temperature for growth between 12°C and 13°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. |
format |
Article in Journal/Newspaper |
author |
Franzmann, P.D. Rohde, M. |
author_facet |
Franzmann, P.D. Rohde, M. |
author_sort |
Franzmann, P.D. |
title |
Characteristics of a novel, anaerobic, mycoplasma-like bacterium from Ace Lake, Antarctica |
title_short |
Characteristics of a novel, anaerobic, mycoplasma-like bacterium from Ace Lake, Antarctica |
title_full |
Characteristics of a novel, anaerobic, mycoplasma-like bacterium from Ace Lake, Antarctica |
title_fullStr |
Characteristics of a novel, anaerobic, mycoplasma-like bacterium from Ace Lake, Antarctica |
title_full_unstemmed |
Characteristics of a novel, anaerobic, mycoplasma-like bacterium from Ace Lake, Antarctica |
title_sort |
characteristics of a novel, anaerobic, mycoplasma-like bacterium from ace lake, antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
1992 |
url |
http://dx.doi.org/10.1017/s0954102092000245 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102092000245 |
long_lat |
ENVELOPE(78.188,78.188,-68.472,-68.472) |
geographic |
Ace Lake Antarctic |
geographic_facet |
Ace Lake Antarctic |
genre |
Antarc* Antarctic Antarctic Science Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctica |
op_source |
Antarctic Science volume 4, issue 2, page 155-162 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102092000245 |
container_title |
Antarctic Science |
container_volume |
4 |
container_issue |
2 |
container_start_page |
155 |
op_container_end_page |
162 |
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1792506794340253696 |