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Ubiquity of Polynucleobacter necessarius subspecies asymbioticus results from ecological diversification
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SYSNO ASEP 0358982 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Ubiquity of Polynucleobacter necessarius subspecies asymbioticus results from ecological diversification Author(s) Jezbera, Jan (BC-A) RID
Jezberová, Jitka (BC-A) RID
Brandt, U. (AT)
Hahn, M.W. (AT)Source Title Environmental Microbiology. - : Wiley - ISSN 1462-2912
Roč. 13, č. 4 (2011), s. 922-931Number of pages 10 s. Language eng - English Country US - United States Keywords ubiquity ; Polynucleobacter ; ecological diversification Subject RIV EE - Microbiology, Virology R&D Projects GAP504/10/0566 GA ČR - Czech Science Foundation (CSF) MEB060901 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z60170517 - HBU-Z, BC-A (2005-2011) UT WOS 000289116700008 DOI 10.1111/j.1462-2920.2010.02396.x Annotation The subspecies Polynucleobacter necessarius asymbioticus (> 99% 16S rRNA similarity) has a cosmopolitan distribution and a ubiquitous occurrence in freshwater habitats. We tested if the observed ubiquity of these free-living planktonic freshwater bacteria results from a euryoecious (generalist) adaptation of P. n. asymbioticus strains, or from ecological diversification within the subspecies. We developed a reverse line blot hybridization assay enabling the cultivation-independent detection of 13 groups within the subspecies in environmental samples. A set of 121 lentic freshwater habitats, spanning a broad variety of habitat types (e.g. pH levels ranging from 3.8 to 8.5) was investigated for the presence of these 13 P. n. asymbioticus groups. Statistical analyses of the RLBH detections revealed pronounced differences in habitat preferences of several of the groups. Their preferences differed regarding pH, conductivity, dissolved organic carbon and oxygen concentration of habitats. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2012
Number of the records: 1