Baumgartner, Manuela and Yapi, Ahoua and Groebner-Ferreira, Regina and Stetter, Karl Otto (2003) Cultivation and properties of Echinamoeba thermarum n. sp., an extremely thermophilic amoeba thriving in hot springs. EXTREMOPHILES, 7 (4). pp. 267-274. ISSN 1431-0651
Full text not available from this repository.Abstract
Here we describe a new, extremely thermophilic amoeba growing between 33 degreesC and 57 degreesC (T-opt. = 50 degreesC). Isolates had been obtained from hot springs at Agnano Terme (Italy), Yellowstone National Park (USA), Kamchatka (Russia), and the Arenal Volcano (Costa Rica). They could be cultured monoxenically on a thermophilic alpha-proteobacterium. The morphology of the amoeba was studied using a microscope situated under a heatable polyacrylate hood. At 50 degreesC, the cells appeared flat with an irregular triangular or elongate shape, sometimes exhibiting fine spine-like subpseudopodia. On average, they were 22 mum long and 11 mum wide and had one nucleus with a central nucleolus. Based on morphology and on SSU rRNA comparisons, the amoeba belonged to the genus Echinamoeba, where it represents a new species. Referring to its extremely thermophilic lifestyle and its hydrothermal habitat, we name it E. thermarum.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SUBUNIT RIBOSOMAL-RNA; GENE; Echinamoeba; hydrothermal; monoxenic culture; protozoa; thermophilic; 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: | 29 Jul 2021 11:28 |
| Last Modified: | 29 Jul 2021 11:28 |
| URI: | https://pred.uni-regensburg.de/id/eprint/38766 |
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