Aggregate formation in a freshwater bacterial strain induced by growth state and conspecific chemical cues

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F10%3A00349539" target="_blank" >RIV/60077344:_____/10:00349539 - 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

Aggregate formation in a freshwater bacterial strain induced by growth state and conspecific chemical cues

Popis výsledku v původním jazyce

We investigated the induction of aggregate formation in the freshwater bacterium Sphingobium sp. strain Z007 by growth state and protistan grazing. In pure cultures of Sphingobium sp. strain Z007, the concentrations of single cells and aggregates insideand outside the dialysis membranes developed in a similar manner over 3 days of incubation. Cell production of Sphingobium sp. strain Z007 was enhanced in the presence of another isolate, Limnohabitans planktonicus, outside the bags, and even more so ifthat strain was additionally grazed upon by the bacterivorous flagellate Poterioochromonas sp. The feeding of flagellates on Sphingobium sp. strain Z007 outside the dialysis bags led to significantly higher proportions of aggregates inside the bags. Thiswas not paralleled by an increase in growth rates. We conclude that two mechanisms, growth state and the possible release of infochemicals by the predator, may induce aggregate formation of Sphingobium sp. strain Z007.

Název v anglickém jazyce

Aggregate formation in a freshwater bacterial strain induced by growth state and conspecific chemical cues

Popis výsledku anglicky

We investigated the induction of aggregate formation in the freshwater bacterium Sphingobium sp. strain Z007 by growth state and protistan grazing. In pure cultures of Sphingobium sp. strain Z007, the concentrations of single cells and aggregates insideand outside the dialysis membranes developed in a similar manner over 3 days of incubation. Cell production of Sphingobium sp. strain Z007 was enhanced in the presence of another isolate, Limnohabitans planktonicus, outside the bags, and even more so ifthat strain was additionally grazed upon by the bacterivorous flagellate Poterioochromonas sp. The feeding of flagellates on Sphingobium sp. strain Z007 outside the dialysis bags led to significantly higher proportions of aggregates inside the bags. Thiswas not paralleled by an increase in growth rates. We conclude that two mechanisms, growth state and the possible release of infochemicals by the predator, may induce aggregate formation of Sphingobium sp. strain Z007.

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

<a href="/cs/project/GA206%2F08%2F0015" target="_blank" >GA206/08/0015: Ekofyziologické charakteristiky kmenů z hlavních skupin bakterioplanktonu údolní nádrže a jejich mortalita způsobená predací prvoků a virovou lyzí</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Environmental Microbiology

ISSN

1462-2912

e-ISSN

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Svazek periodika

12

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

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Kód UT WoS článku

000281556900009

EID výsledku v databázi Scopus

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