Počet záznamů: 1  

The diversity of the Limnohabitans genus, an important group of freshwater bacterioplankton, by characterization of 35 isolated strains

  1. 1.
    0392318 - BC 2014 RIV US eng J - Článek v odborném periodiku
    Kasalický, Vojtěch - Jezbera, Jan - Hahn, M.W. - Šimek, Karel
    The diversity of the Limnohabitans genus, an important group of freshwater bacterioplankton, by characterization of 35 isolated strains.
    PLoS ONE. Roč. 8, č. 3 (2013), e58209. ISSN 1932-6203. E-ISSN 1932-6203
    Grant CEP: GA ČR(CZ) GA206/08/0015; GA ČR(CZ) GAP504/10/0566; GA MŠMT(CZ) MEB060702; GA MŠMT(CZ) MEB060901
    Výzkumný záměr: CEZ:AV0Z60170517
    Institucionální podpora: RVO:60077344
    Klíčová slova: bacterial microdiversity * aquatic * Limnohabitans * freshwater * bacterioplankton
    Kód oboru RIV: EE - Mikrobiologie, virologie
    Impakt faktor: 3.534, rok: 2013

    Bacteria of the genus Limnohabitans, more precisely the R-BT lineage, have a prominent role in freshwater bacterioplankton communities due to their high rates of substrate uptake and growth, growth on algal-derived substrates and high mortality rates from bacterivory. Moreover, due to their generally larger mean cell volume, compared to typical bacterioplankton cells, they contribute over-proportionally to total bacterioplankton biomass. Here we present genetic, morphological and ecophysiological properties of 35 bacterial strains affiliated with the Limnohabitans genus newly isolated from 11 non-acidic European freshwater habitats. The low genetic diversity indicated by the previous studies using the ribosomal SSU gene highly contrasted with the surprisingly rich morphologies and different patterns in substrate utilization of isolated strains. Therefore, the intergenic spacer between 16S and 23S rRNA genes was successfully tested as a fine-scale marker to delineate individual lineages and even genotypes. For further studies, we propose the division of the Limnohabitans genus into five lineages (provisionally named as LimA, LimB, LimC, LimD and LimE) and also additional sublineages within the most diversified lineage LimC. Such a delineation is supported by the morphology of isolated strains which predetermine large differences in their ecology.
    Trvalý link: http://hdl.handle.net/11104/0221469

     
     
Počet záznamů: 1  

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