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Statements

Subject Item
n2:RIV%2F60077344%3A_____%2F08%3A00317716%21RIV09-GA0-60077344
rdf:type
skos:Concept n18:Vysledek
dcterms:description
Abundance and activities of the major bacterial groups in the two compartments of experimentally divided Lake Grosse Fuchskuhle (Germany) were examined. Water from the basins were incubated in dialysis bags, which allowed for a relatively free exchange of nutrients, limiting solutes and low molecular organic matter but fully prevented exchange of organisms. To investigate the effect of top-down and bottom-up manipulations three size fractions of water samples were produced: (i) unfiltered, (ii) pre-filtered through 5.0 µm pore size membranes to remove large particles, as well as grazers and (iii) pre-filtered through 0.8 µm filters to remove all potential bacterivores. One set of dialysis bags was either incubated in acidic SW (rich in humic matter) or in almost neutral NE basin whereas a second set was transferred from the SW to the NE basin and vice versa. Our study revealed pronounced differences in growth rates among the major bacterial groups in relation to the treatments. Abundance and activities of the major bacterial groups in the two compartments of experimentally divided Lake Grosse Fuchskuhle (Germany) were examined. Water from the basins were incubated in dialysis bags, which allowed for a relatively free exchange of nutrients, limiting solutes and low molecular organic matter but fully prevented exchange of organisms. To investigate the effect of top-down and bottom-up manipulations three size fractions of water samples were produced: (i) unfiltered, (ii) pre-filtered through 5.0 µm pore size membranes to remove large particles, as well as grazers and (iii) pre-filtered through 0.8 µm filters to remove all potential bacterivores. One set of dialysis bags was either incubated in acidic SW (rich in humic matter) or in almost neutral NE basin whereas a second set was transferred from the SW to the NE basin and vice versa. Our study revealed pronounced differences in growth rates among the major bacterial groups in relation to the treatments. Abundance a aktivita hlavních skupin bakterií ve dvou částech experimentálně rozděleného jezera Grosse Fuchskuhle (Německo) byla zkoumána. Voda z obou částí byla inkubována v dialyzačních sáčcích, které umožňují relativně volnou výměnu nutrientů, limitujících rozpuštěných látek a nízkomolekulárních organických látek, ale kvantitativně zabraňují výměně organismů. Tři různé velikostní frakce byly připraveny : Nefiltrovaná voda, přefiltrovaná přes 5 µm a přefiltrovaná přes 0,8 µm filtr, za účelem manipulace predačního tlaku prvoků. Každý set dialyzačních sáčků byl inkubován v kyselém SW (bohatém na humické látky) kompártmentu jezera a zároveň v téměř neutrální NE části a naopak. Naše studie odhalila zajímavé rozdíly v růstových rychlostech u ruzných skupin bakterií v závislosti na nutrientech.
dcterms:title
Top-down and bottom-up induced shifts in bacterial abundance, production and community composition in an experimentally divided humic lake Predací a nutrienty indukované změny v bakteriální abundanci, produkci a složení komunity v experimentálně rozděleném huminovém jezeře Top-down and bottom-up induced shifts in bacterial abundance, production and community composition in an experimentally divided humic lake
skos:prefLabel
Top-down and bottom-up induced shifts in bacterial abundance, production and community composition in an experimentally divided humic lake Predací a nutrienty indukované změny v bakteriální abundanci, produkci a složení komunity v experimentálně rozděleném huminovém jezeře Top-down and bottom-up induced shifts in bacterial abundance, production and community composition in an experimentally divided humic lake
skos:notation
RIV/60077344:_____/08:00317716!RIV09-GA0-60077344
n3:aktivita
n13:P n13:Z
n3:aktivity
P(GA206/05/0007), Z(AV0Z60170517)
n3:cisloPeriodika
3
n3:dodaniDat
n16:2009
n3:domaciTvurceVysledku
n12:3267253 n12:6252591 n12:7194536
n3:druhVysledku
n5:J
n3:duvernostUdaju
n15:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
400205
n3:idVysledku
RIV/60077344:_____/08:00317716
n3:jazykVysledku
n7:eng
n3:klicovaSlova
in situ hybridization; meso-eutrophic reservoir; dissolved organic carbon; fresh-water reservoir; bacterioplankton community; dystrophic lake
n3:klicoveSlovo
n9:dystrophic%20lake n9:meso-eutrophic%20reservoir n9:bacterioplankton%20community n9:in%20situ%20hybridization n9:dissolved%20organic%20carbon n9:fresh-water%20reservoir
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[796F891C80B0]
n3:nazevZdroje
Environmental Microbiology
n3:obor
n17:EE
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
6
n3:projekt
n4:GA206%2F05%2F0007
n3:rokUplatneniVysledku
n16:2008
n3:svazekPeriodika
10
n3:tvurceVysledku
Šimek, Karel Horňák, Karel Hutalle, K. M. L. Grossart, H. P. Buck, U. Jezbera, Jan
n3:wos
000252712300009
n3:zamer
n11:AV0Z60170517
s:issn
1462-2912
s:numberOfPages
18