Modulace mikrobiální rovnováhy predátor-kořist pomocí dostupností fosforu: růstová odezva a strategie přežití fylogenetických skupin bakterií

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F07%3A00086733" target="_blank" >RIV/60077344:_____/07:00086733 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Modulation of microbial predator-prey dynamics by phosphorus availability: Growth patterns and survival strategies of bacterial phylogenetic clades

Popis výsledku v původním jazyce

We studied the impact of protistan grazing and phosphorus availability on the numbers and biomasses of bacteria from various phylogenetic lineages, and on their growth and activity parameters in the oligo-mesotrophic Piburger See, Austria. Enhanced grazing resulted in decreased proportions of bacteria with high nucleic acid content (HNA bacteria) and lower detection rates by FISH. Betaproteobacteria were heavily grazed while Alphaproteobacteria and Cytophaga-Flavobacterium-Bacteroides were less affectedby predators. In the treatments enriched with phosphorus, Betaproteobacteria became dominant and successful opportunistic competitors for nutrients. In contrast, Actinobacteria did not respond to surplus phosphorus by population growth, and maintained their small size, which resulted in a very low biomass contribution. In addition, significant relationships between HNA bacteria and several bacterial phylogenetic clades were found, indicating an enhanced activity status.

Název v anglickém jazyce

Modulation of microbial predator-prey dynamics by phosphorus availability: Growth patterns and survival strategies of bacterial phylogenetic clades

Popis výsledku anglicky

We studied the impact of protistan grazing and phosphorus availability on the numbers and biomasses of bacteria from various phylogenetic lineages, and on their growth and activity parameters in the oligo-mesotrophic Piburger See, Austria. Enhanced grazing resulted in decreased proportions of bacteria with high nucleic acid content (HNA bacteria) and lower detection rates by FISH. Betaproteobacteria were heavily grazed while Alphaproteobacteria and Cytophaga-Flavobacterium-Bacteroides were less affectedby predators. In the treatments enriched with phosphorus, Betaproteobacteria became dominant and successful opportunistic competitors for nutrients. In contrast, Actinobacteria did not respond to surplus phosphorus by population growth, and maintained their small size, which resulted in a very low biomass contribution. In addition, significant relationships between HNA bacteria and several bacterial phylogenetic clades were found, indicating an enhanced activity status.

Druh

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

CEP obor

EE - Mikrobiologie, virologie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název periodika

FEMS Microbiology Ecology

ISSN

0168-6496

e-ISSN

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Svazek periodika

60

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

40-50

Kód UT WoS článku

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EID výsledku v databázi Scopus

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