Baumgartner, Manuela and Stetter, Karl O. and Foissner, Wilhelm (2002) Morphological, small subunit rRNA, and physiological characterization of Trimyema minutum (Kahl, 1931), an anaerobic ciliate from submarine hydrothermal vents growing from 28 degrees C to 52 degrees C. JOURNAL OF EUKARYOTIC MICROBIOLOGY, 49 (3). pp. 227-238. ISSN 1066-5234
Full text not available from this repository. (Request a copy)Abstract
A thermophilic strain of Trimyema minutum was isolated from the hydrothermally heated sea floor at Vulcano Island (Italy) and cultivated monoxenically on Marinobacter sp. and Methanococcus thermolithotrophicus. It can be propagated strictly anaerobically and is sensitive to oxygen: if exposed to air at 48 degreesC all cells die within 60 min. It grows from 0.45-7.2% (w/v) salt and at pH 6.0-8.0. The isolate is the most extreme thermophilic ciliate which ever has been cultivated, exhibiting an optimal growth temperature of 48 degreesC (doubling time 6 h). Growth occurs between 28 degreesC and 52 degreesC. Trimyema minutum is redescribed using live observation and silver impregnation. Its morphology and the small subunit ribosomal RNA sequence is distinctly different from that of T. compressum, but morphology is highly similar to that of T shoalsia Nerad et al. 1995, which is thus probably a junior synonym of T. minutum. To stabilize the bewildering species taxonomy in Trimyema. we suggest to recognize our population as a neotype of T. minutum.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | COMPRESSUM; BACTERIA; GROWTH; CULTIVATION; TEMPERATURE; SEQUENCES; SUBSTITUTIONS; 105-DEGREES-C; PROTOZOA; PRODUCTS; marine; monoxenic culture; physiology; taxonomy; thermophilic; Vulcano Island; 18S rRNA |
| Subjects: | 500 Science > 570 Life sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Biochemie, Genetik und Mikrobiologie > Lehrstuhl für Mikrobiologie (Archaeenzentrum) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 27 Oct 2021 05:31 |
| Last Modified: | 27 Oct 2021 05:31 |
| URI: | https://pred.uni-regensburg.de/id/eprint/40337 |
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