. "Hor\u0148\u00E1k, Karel" . "Role p\u0159isedl\u00FDch choanoflagel\u00E1t\u016F rodu Salpingoeca jako konzument\u016F bakterioplanktonu"@cs . . "reservoir;microbial food webs;protistan bacterivory"@en . . . . "\u0160imek, Karel" . "3" . "Se\u010Fa, Jarom\u00EDr" . . . "36" . . . "Role of diatom-attached choanoflagellates of the genus Salpingoeca as pelagic bacterivores" . "584950" . "RIV/60077387:_____/04:00104282" . "5"^^ . . "Aquatic Microbial Ecology" . . "[75A543DA56FB]" . "Jezbera, Jan" . . "Studovali jsme ekologickou roli choanoflagel\u00E1t\u016F rodu Salpingoeca v planktonu p\u0159ehradn\u00ED n\u00E1dr\u017Ee \u0158\u00EDmov. Tento rod choanoflagel\u00E1t\u016F p\u0159ised\u00E1 na koloni\u00E1ln\u00ED rozsivky Asterionella formosa a Fragilaria crotonensis a vykazuje velmi rychl\u00FD p\u0159\u00EDjem bakteri\u00ED (35-65 bakteri\u00ED bu\u0148ku-1 h-1). Celkov\u011B p\u0159\u00EDjem bakteri\u00ED t\u00EDmto bi\u010D\u00EDkovcem \u010Dinil 11-64% celkov\u00E9 eliminace bakteri\u00ED spole\u010Denstvy prvok\u016F v n\u00E1dr\u017Ei. V\u00FDsledky dvou pokus\u016F indikuj\u00ED, \u017Ee p\u0159isednut\u00ED t\u011Bchto bi\u010D\u00EDkovc\u016F na velk\u00E9 koloni\u00E1ln\u00ED rozsivky jim poskytuje ur\u010Ditou ochranu p\u0159ed velk\u00FDm filtruj\u00EDc\u00EDm zooplanktonem, kter\u00FD naopak po\u017E\u00EDr\u00E1 mal\u00E9 druhy voln\u011B plovouc\u00EDch bi\u010D\u00EDkovc\u016F. P\u0159i velk\u00E9 koncentraci rozsivek Asterionella formosa a Fragilaria crotonensis se tak bi\u010D\u00EDkovci rodu Salpingoeca mohou do\u010Dasn\u011B st\u00E1t nejd\u016Fle\u017Eit\u011Bj\u0161\u00EDmi konzumenty bakterioplanktonu v n\u00E1dr\u017Ei."@cs . . "Role of diatom-attached choanoflagellates of the genus Salpingoeca as pelagic bacterivores"@en . . . "0948-3055" . "5"^^ . "Role of diatom-attached choanoflagellates of the genus Salpingoeca as pelagic bacterivores" . "Vrba, Jaroslav" . "Role p\u0159isedl\u00FDch choanoflagel\u00E1t\u016F rodu Salpingoeca jako konzument\u016F bakterioplanktonu"@cs . "257;269" . . "Role of diatom-attached choanoflagellates of the genus Salpingoeca as pelagic bacterivores"@en . "P(GA206/02/0003)" . "DE - Spolkov\u00E1 republika N\u011Bmecko" . "We studied the ecological role of choanoflagellates of the genus Salpingoeca found attached to the colonial diatoms Asterionella formosa and Fragilaria crotonensis in the \u0158\u00EDmov reservoir (South Bohemia). The choanoflagellate was found to be a highly efficient planktonic bacterivore. In 2 experiments we estimated in situ rates of bacterivory using fluorescently labeled bacteria as tracers. Taxon-specific uptake rates of Salpingoeca sp. were 35-65 bacteria per flagellate per hour. Overall, across all experimental treatments grazing of Salpingoeca sp. accounted for 11-64% of total protistan grazing and for 6-49% of daily removal rate of bacterial standing stock. Our data indicate that given the sufficient abundance of suitable host algae, possibly providing a refuge from potential grazers, and efficient control of free-swimming heterotrophic nanoflagellates by zooplankton grazing, this single choanoflagellate taxon can be temporarily the most important pelagic bacterivore."@en . . "RIV/60077387:_____/04:00104282!RIV/2005/GA0/A62005/N" . . . "13"^^ . "We studied the ecological role of choanoflagellates of the genus Salpingoeca found attached to the colonial diatoms Asterionella formosa and Fragilaria crotonensis in the \u0158\u00EDmov reservoir (South Bohemia). The choanoflagellate was found to be a highly efficient planktonic bacterivore. In 2 experiments we estimated in situ rates of bacterivory using fluorescently labeled bacteria as tracers. Taxon-specific uptake rates of Salpingoeca sp. were 35-65 bacteria per flagellate per hour. Overall, across all experimental treatments grazing of Salpingoeca sp. accounted for 11-64% of total protistan grazing and for 6-49% of daily removal rate of bacterial standing stock. Our data indicate that given the sufficient abundance of suitable host algae, possibly providing a refuge from potential grazers, and efficient control of free-swimming heterotrophic nanoflagellates by zooplankton grazing, this single choanoflagellate taxon can be temporarily the most important pelagic bacterivore." .