Počet záznamů: 1

Emission spectroscopy and kinetic fluorometry studies of phototrophic microbial communities along a salinity gradient in solar saltern evaporation ponds of Eilat, Israel

  1. 1.
    0335058 - MBU-M 2010 RIV DE eng J - Článek v odborném periodiku
    Prášil, Ondřej - Bína, David - Medová, Hana - Řeháková, Klára - Zapomělová, Eliška - Veselá, J. - Oren, A.
    Emission spectroscopy and kinetic fluorometry studies of phototrophic microbial communities along a salinity gradient in solar saltern evaporation ponds of Eilat, Israel.
    Aquatic Microbial Ecology. Roč. 56, 2-3 (2009), s. 285-296 ISSN 0948-3055
    Grant CEP: GA AV ČR 1QS600170504; GA AV ČR 1QS500200570; GA ČR GA206/06/0462
    Výzkumný záměr: CEZ:AV0Z60050516; CEZ:AV0Z50200510; CEZ:AV0Z50510513; CEZ:AV0Z60170517
    Klíčová slova: Phototrophic microbial communities * Hypersaline * Cyanobacteria
    Kód oboru RIV: EE - Mikrobiologie, virologie
    Impakt faktor: 1.743, rok: 2009

    The planktonic and benthic microbial communities in 8 hypersaline evaporation ponds of the Israel Salt Company in Eilat, Israel, with salinities ranging from 58 to 329 g l–1 (total dissolved salt), were studied using fluorescence emission spectroscopy and kinetic fluorometry. With increasing salinity, the anoxygenic phototrophic bacteria (containing bacteriochlorophyll a, bchl a) formed a significant and increasing fraction of the planktonic phototrophic biomass. While the bchl a/chl a molar ratio was 0.01 at the lowest salinity, it reached almost 1 at the higher salinities. In the benthic communities, emission spectroscopy revealed depth-dependent changes in the photophysiology of benthic oxygenic phototrophs, and spatial variability in the abundance of several groups of anoxygenic photosynthetic bacteria (green bacteria containing chlorosomes and purple bacteria containing LH1)
    Trvalý link: http://hdl.handle.net/11104/0179636