About: Maximum growth rates and possible life strategies of different bacterioplankton groups in relation to phosphorus availability in a freshwater reservoir     Goto   Sponge   NotDistinct   Permalink

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Description
  • S použitím genetických sond jsme studovali růstové rychlosti různých skupin bakteriplanktonu a společenstev heterotrofních bičíkovců ve vztahu k dostupnosti fosforu v různých částech údolní nádrže Římov. Vzorky vody byly rozděleny do různých velikostních frakcí a inkubovány v dialyzačních pytlích v místě jejich odběru a současně byly přeneseny do částí nádrže odlišně limitovaných fosforem. Tak byly zjištěny významné rozdíly v maximálních růstových rychlostech studovaných skupin bakterií na širokém rozmezí dostupnosti fosforu. Nejrychleji rostly bakterie z malé, ale v planktonu velmi početné podskupiny Betaproteobacteria, hybridizující se sondou R-BT065. Získané výsledky o maximálních růstových rychlostech umožňují diskusi možných strategií přežití různých skupin bakterioplanktonu v živinami limitovaném prostředí. (cs)
  • We investigated net growth rates of distinct bacterioplankton groups and heterotrophic nanoflagellate (HNF) communities in relation to phosphorus availability by analyzing in situ manipulation experiments, conducted in the Římov reservoir (Czech Republic). Water samples were size-fractionated and incubated in dialysis bags at the sampling site or transplanted into differently phosphorus limited areas of the reservoir. Using different oligonucleotide probes, net growth rates of the probe-defined bacterial groups and HNF assemblages were estimated and related to phosphorus availability. We found significant differences in maximum growth rates of different bacterial groups. Interestingly, HNF grew significantly faster than any bacterial group studied except for a small, but abundant cluster of Betaproteobacteria (targeted by the R-BT065 probe). Potential ecological implications of different growth capabilities for possible life strategies of different bacterial groups are discussed.
  • We investigated net growth rates of distinct bacterioplankton groups and heterotrophic nanoflagellate (HNF) communities in relation to phosphorus availability by analyzing in situ manipulation experiments, conducted in the Římov reservoir (Czech Republic). Water samples were size-fractionated and incubated in dialysis bags at the sampling site or transplanted into differently phosphorus limited areas of the reservoir. Using different oligonucleotide probes, net growth rates of the probe-defined bacterial groups and HNF assemblages were estimated and related to phosphorus availability. We found significant differences in maximum growth rates of different bacterial groups. Interestingly, HNF grew significantly faster than any bacterial group studied except for a small, but abundant cluster of Betaproteobacteria (targeted by the R-BT065 probe). Potential ecological implications of different growth capabilities for possible life strategies of different bacterial groups are discussed. (en)
Title
  • Maximum growth rates and possible life strategies of different bacterioplankton groups in relation to phosphorus availability in a freshwater reservoir
  • Maximum growth rates and possible life strategies of different bacterioplankton groups in relation to phosphorus availability in a freshwater reservoir (en)
  • Maximální růstové rychlosti a strategie přežití různých skupin bakterioplanktonu ve vztahu k dostupnosti fosforu v přehradní nádrži (cs)
skos:prefLabel
  • Maximum growth rates and possible life strategies of different bacterioplankton groups in relation to phosphorus availability in a freshwater reservoir
  • Maximum growth rates and possible life strategies of different bacterioplankton groups in relation to phosphorus availability in a freshwater reservoir (en)
  • Maximální růstové rychlosti a strategie přežití různých skupin bakterioplanktonu ve vztahu k dostupnosti fosforu v přehradní nádrži (cs)
skos:notation
  • RIV/60077344:_____/06:00047196!RIV07-AV0-60077344
http://linked.open.../vavai/riv/strany
  • 1613;1624
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(1QS600170504), P(GA206/05/0007), Z(AV0Z60170517), Z(MSM6007665801)
http://linked.open...iv/cisloPeriodika
  • 9
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 484456
http://linked.open...ai/riv/idVysledku
  • RIV/60077344:_____/06:00047196
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • bacterioplankton community composition; growth of bacteria and flagellates; phosphorus availability; reservoir; top-down and bottom-up control (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [27F431B29182]
http://linked.open...i/riv/nazevZdroje
  • Environmental Microbiology
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 8
http://linked.open...iv/tvurceVysledku
  • Horňák, Karel
  • Šimek, Karel
  • Nedoma, Jiří
  • Vrba, Jaroslav
  • Dolan, J. R.
  • Hahn, M. W.
  • Jezbera, Jan
  • Macek, Miroslav
  • Straškrábová, Viera
http://linked.open...n/vavai/riv/zamer
issn
  • 1462-2912
number of pages
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