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  Cultivation-independent characterization of ‘Candidatus Magnetobacterium bavaricum’ via ultrastructural, geochemical, ecological and metagenomic methods

Jogler, C., Niebler, M., Lin, W., Kube, M., Wanner, G., Kolinko, S., et al. (2010). Cultivation-independent characterization of ‘Candidatus Magnetobacterium bavaricum’ via ultrastructural, geochemical, ecological and metagenomic methods. Environmental Microbiology, 12(9), 2466-2478. doi:10.1111/j.1462-2920.2010.02220.x.

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Genre: Journal Article
Alternative Title : Environ Microbiol

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 Creators:
Jogler, C., Author
Niebler, M., Author
Lin, W., Author
Kube, M.1, Author           
Wanner, G., Author
Kolinko, S., Author
Stief, P., Author
Beck, A. J., Author
De Beer, D., Author
Petersen, N., Author
Pan, Y., Author
Amann, R., Author
Reinhardt, R.1, Author           
Schüler, D.1, Author           
Affiliations:
1High Throughput Technologies, Max Planck Institute for Molecular Genetics, Max Planck Society, ou_1433552              

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 Abstract: ‘Candidatus Magnetobacterium bavaricum’ is unusual among magnetotactic bacteria (MTB) in terms of cell size (8–10 µm long, 1.5–2 µm in diameter), cell architecture, magnetotactic behaviour and its distinct phylogenetic position in the deep-branching Nitrospira phylum. In the present study, improved magnetic enrichment techniques permitted high-resolution scanning electron microscopy and energy dispersive X-ray analysis, which revealed the intracellular organization of the magnetosome chains. Sulfur globule accumulation in the cytoplasm point towards a sulfur-oxidizing metabolism of ‘Candidatus M. bavaricum’. Detailed analysis of ‘Candidatus M. bavaricum’ microhabitats revealed more complex distribution patterns than previously reported, with cells predominantly found in low oxygen concentration. No correlation to other geochemical parameters could be observed. In addition, the analysis of a metagenomic fosmid library revealed a 34 kb genomic fragment, which contains 33 genes, among them the complete rRNA gene operon of ‘Candidatus M. bavaricum’ as well as a gene encoding a putative type IV RubisCO large subunit.

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Language(s): eng - English
 Dates: 2010-09
 Publication Status: Published in print
 Pages: -
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Title: Environmental Microbiology
  Alternative Title : Environ Microbiol
Source Genre: Journal
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Publ. Info: -
Pages: - Volume / Issue: 12 (9) Sequence Number: - Start / End Page: 2466 - 2478 Identifier: ISSN: 1462-2912