About: Role of diatom-attached choanoilagellates of the genus Salpingoeca as pelagic bacterivores

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About: Role of diatom-attached choanoilagellates of the genus Salpingoeca as pelagic bacterivores Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We studied the ecological role of choanoflagellates of the genus Salpingoeca (possibly S. amphoridium) attached to the colonial diatoms Asterionella formosa and Fragilaria crotonensis in the Rimov reservoir (South Bohemia). The choanoflagellate was found only on these 2 species of diatoms (0 to 35 choanoflagellate cells per diatom colony). It is clearly identifiable in natural samples, and is a highly efficient planktonic bacterivore. In 2 field experiments (Expt 1 in June 2000 and Expt 2 in September 2002) we estimated in situ rates of bacterivory using fluorescently labeled bacteria (FLB) as tracers. There was a linear increase in the number of FLB per choanoflagellate during the first 30 min of incubation, with only 8 to 16 % of individuals within the natural populations displaying no ingestion of FLB. Taxon-specific bacteria uptake rate of Salpingoeca spp. was 35 to 65 bacteria cell(-1) h(-1). In Expt 2, by manipulating phosphorus (P) and organic carbon availability (glucose), we also examined how We studied the ecological role of choanoflagellates of the genus Salpingoeca (possibly S. amphoridium) attached to the colonial diatoms Asterionella formosa and Fragilaria crotonensis in the Rimov reservoir (South Bohemia). The choanoflagellate was found only on these 2 species of diatoms (0 to 35 choanoflagellate cells per diatom colony). It is clearly identifiable in natural samples, and is a highly efficient planktonic bacterivore. In 2 field experiments (Expt 1 in June 2000 and Expt 2 in September 2002) we estimated in situ rates of bacterivory using fluorescently labeled bacteria (FLB) as tracers. There was a linear increase in the number of FLB per choanoflagellate during the first 30 min of incubation, with only 8 to 16 % of individuals within the natural populations displaying no ingestion of FLB. Taxon-specific bacteria uptake rate of Salpingoeca spp. was 35 to 65 bacteria cell(-1) h(-1). In Expt 2, by manipulating phosphorus (P) and organic carbon availability (glucose), we also examined how (en) Úloha choanoflagelátů rodu Salpingoeca přisedlých na rozsivkách (cs)
Title	Role of diatom-attached choanoilagellates of the genus Salpingoeca as pelagic bacterivores Role of diatom-attached choanoilagellates of the genus Salpingoeca as pelagic bacterivores (en) Úloha choanoflagelátů rodu Salpingoeca přisedlých na rozsivkách (cs)
skos:prefLabel	Role of diatom-attached choanoilagellates of the genus Salpingoeca as pelagic bacterivores Role of diatom-attached choanoilagellates of the genus Salpingoeca as pelagic bacterivores (en) Úloha choanoflagelátů rodu Salpingoeca přisedlých na rozsivkách (cs)
skos:notation	RIV/60076658:12310/04:00005598!RIV/2005/MSM/123105/N
http://linked.open.../vavai/riv/strany	257-269
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM 123100004)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2005
http://linked.open...aciTvurceVysledku	Šimek, Karel Vrba, Jaroslav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Jihočeská univerzita v Českých Budějovicích / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	584951
http://linked.open...ai/riv/idVysledku	RIV/60076658:12310/04:00005598
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	reservoir;microbial food webs;protistan bacterivory;bacterioplankton;grazing-induced mortality;choanoflagellates;ciliates (en)
http://linked.open.../riv/klicoveSlovo	reservoir bacterioplankton protistan bacterivory ciliates microbial food webs choanoflagellates grazing-induced mortality
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[AE89EC2BEF85]
http://linked.open...i/riv/nazevZdroje	Aquatic Microbial Ecology
http://linked.open...in/vavai/riv/obor	DA
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...UplatneniVysledku	2004
http://linked.open...v/svazekPeriodika	36
http://linked.open...iv/tvurceVysledku	Horňák, Karel Šimek, Karel Seďa, Jaromír Vrba, Jaroslav Jezbera, Jan
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20123100004
issn	0948-3055
number of pages	13 (xsd:int)
http://localhost/t...ganizacniJednotka	12310

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