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Deinococcus aquatilis sp. nov., isolated from water.
Peter Kämpfer1, Nicole Lodders, Birgit Huber
1Institut für Angewandte Mikrobiologie, Justus-Liebig-Universität Giessen, Giessen, Germany. peter.kaempfer@umwelt.uni-giessen.de
International Journal of Systematic and Evolutionary Microbiology
|December 9, 2008
Summary
A novel pale-pink bacterium, Deinococcus aquatilis sp. nov., was identified from water. This Gram-positive, rod-shaped organism expands the known diversity within the Deinococcus genus.
Area of Science:
- Microbiology
- Bacteriology
- Taxonomy
Background:
- The genus Deinococcus is known for its radiation resistance and unique cellular structures.
- Understanding bacterial diversity is crucial for ecological and biotechnological applications.
Purpose of the Study:
- To characterize a novel pale-pink bacterial strain isolated from water.
- To determine the taxonomic position of the novel strain within the Deinococcus genus.
Main Methods:
- Polyphasic taxonomic approach including 16S rRNA gene sequencing.
- Chemotaxonomic analyses: respiratory quinones, polar lipids, and fatty acid profiles.
- Gram staining and cell morphology observations.
Main Results:
- The strain, CCUG 53370(T), belongs to the genus Deinococcus, with highest 16S rRNA gene similarity to Deinococcus ficus (94.4%).
- Chemotaxonomy revealed menaquinone MK-8 as the sole respiratory quinone and a complex polar lipid profile.
- Predominant fatty acids included C(16:1)ω7c, C(17:1)ω8c, and C(17:1)ω9c.
Conclusions:
- Strain CCUG 53370(T) represents a new species, Deinococcus aquatilis sp. nov.
- The distinct chemotaxonomic and phylogenetic features support its classification as a novel species.
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