Comparing the effects of resource enrichment and grazing on viral production in a meso-eutrophic reservoir.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077387%3A_____%2F03%3A62033005" target="_blank" >RIV/60077387:_____/03:62033005 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/03:00004734

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Comparing the effects of resource enrichment and grazing on viral production in a meso-eutrophic reservoir.

Popis výsledku v původním jazyce

Viruses and heterotrophic nanoflagellates (HNF) both exploit bacterial prey, so HNF grazing could influence interactions between viruses and bacteria. We conducted experiments in which natural bacterial populations were subjected to relaxation of nutrient limitation and different levels of grazing pressure from HNF. Stimulation of bacterial production and abundance with the relaxation of nutrient limitation resulted in a higher standing stock of viruses, higher viral production and also a higher virus-induced lysis rate of bacterioplankton, suggesting that the relative effect of virus-induced mortality is higher in more productive environments. Viral abundance, production, and virus-induced mortality of bacteria was highest in the treatments in which grazing rates on bacteria by HNF were highest. The resource enrichment had a stronger effect on viral production and infection of bacteria than grazing. Viruses lysed 18 to 66% of the bacterial production per day.

Název v anglickém jazyce

Comparing the effects of resource enrichment and grazing on viral production in a meso-eutrophic reservoir.

Popis výsledku anglicky

Viruses and heterotrophic nanoflagellates (HNF) both exploit bacterial prey, so HNF grazing could influence interactions between viruses and bacteria. We conducted experiments in which natural bacterial populations were subjected to relaxation of nutrient limitation and different levels of grazing pressure from HNF. Stimulation of bacterial production and abundance with the relaxation of nutrient limitation resulted in a higher standing stock of viruses, higher viral production and also a higher virus-induced lysis rate of bacterioplankton, suggesting that the relative effect of virus-induced mortality is higher in more productive environments. Viral abundance, production, and virus-induced mortality of bacteria was highest in the treatments in which grazing rates on bacteria by HNF were highest. The resource enrichment had a stronger effect on viral production and infection of bacteria than grazing. Viruses lysed 18 to 66% of the bacterial production per day.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

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Projekt

<a href="/cs/project/GA206%2F02%2F0003" target="_blank" >GA206/02/0003: Faktory (predace, limitace substráty, virová lyze) určující složení a dynamiku společenstev bakterií na podélném gradientu kaňonovité údolní nádrže</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Aquatic Microbial Ecology

ISSN

0948-3055

e-ISSN

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Svazek periodika

31

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

137-144

Kód UT WoS článku

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EID výsledku v databázi Scopus

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