Vlivy různého zatížení fosforem na interakce řas a bakterií: přezkoumání ?paradoxu fytoplankton?bakterie? v systému kontinuální kultivace

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077387%3A_____%2F05%3A00025990" target="_blank" >RIV/60077387:_____/05:00025990 - 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

Effects of phosphorus loading on interactions of algae and bacteria: reinvestigation of the 'phytoplankton?bacteria paradox' in a continuous cultivation system

Popis výsledku v původním jazyce

The effect of different phosphorus loads (LP) on the phosphorus (P) and carbon (C) content of algae and bacteria was assessed in continuous culture. We tested if a mixed microbial assemblage co-cultured with Cryptomonas phaseolus would comply with the "phytoplankton?bacteria paradox". At the level of a mixed microbial assemblage it is characterised by the following aspects: (1) bacteria profit from their high affinity to P and are better competitors at lower LP; (2) although algae compete with bacteriafor P, P-limited algae release extracellular C that stimulates growth of their bacterial competitors; (3) when bacteria depend on algae as their sole source of organic C, this provides a feedback mechanism by which algae limit the abundance of their competitors at higher LP; (4) large oscillations in the bacteria?algae ratios at the lowest LP point to a greater instability of this interaction with stronger P competition.

Název v anglickém jazyce

Effects of phosphorus loading on interactions of algae and bacteria: reinvestigation of the 'phytoplankton?bacteria paradox' in a continuous cultivation system

Popis výsledku anglicky

The effect of different phosphorus loads (LP) on the phosphorus (P) and carbon (C) content of algae and bacteria was assessed in continuous culture. We tested if a mixed microbial assemblage co-cultured with Cryptomonas phaseolus would comply with the "phytoplankton?bacteria paradox". At the level of a mixed microbial assemblage it is characterised by the following aspects: (1) bacteria profit from their high affinity to P and are better competitors at lower LP; (2) although algae compete with bacteriafor P, P-limited algae release extracellular C that stimulates growth of their bacterial competitors; (3) when bacteria depend on algae as their sole source of organic C, this provides a feedback mechanism by which algae limit the abundance of their competitors at higher LP; (4) large oscillations in the bacteria?algae ratios at the lowest LP point to a greater instability of this interaction with stronger P competition.

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

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

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

38

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

203-213

Kód UT WoS článku

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EID výsledku v databázi Scopus

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