Utilisation of 32P-labelled nucleotide- and non-nucleotide dissolved organic phosphorus by freshwater plankton.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077387%3A_____%2F03%3A62033029" target="_blank" >RIV/60077387:_____/03:62033029 - 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

Utilisation of 32P-labelled nucleotide- and non-nucleotide dissolved organic phosphorus by freshwater plankton.

Popis výsledku v původním jazyce

In a eutrophic lake and in an acid bog-lake, phytoplankton cells (bigger than 3 micrometers) acquired about three times higher fraction of 32P than bacteria if P was added as glucose-6-phosphate (G6P) than if added as orthophosphate. In an oligotrophic lake, no such preferential use of [32P]G6P was observed, nor preferential use of [32P]ATP in all the three lakes studied. Preferential use of G6P by phytoplankton cells coincided with the dominance of the same size fraction in particulate phosphatase activity, measured with 4-methylumbelliferyl phosphate (MUFP). Turnovers of [32P]G6P and MUFP were similar but 2-22 times slower than turnover of [32P]ATP. The nucleotide- and the non-nucleotide dissolved organic phosphorus thus may differ in turnover and significance for competition between bacteria and phytoplankton for P.

Název v anglickém jazyce

Utilisation of 32P-labelled nucleotide- and non-nucleotide dissolved organic phosphorus by freshwater plankton.

Popis výsledku anglicky

In a eutrophic lake and in an acid bog-lake, phytoplankton cells (bigger than 3 micrometers) acquired about three times higher fraction of 32P than bacteria if P was added as glucose-6-phosphate (G6P) than if added as orthophosphate. In an oligotrophic lake, no such preferential use of [32P]G6P was observed, nor preferential use of [32P]ATP in all the three lakes studied. Preferential use of G6P by phytoplankton cells coincided with the dominance of the same size fraction in particulate phosphatase activity, measured with 4-methylumbelliferyl phosphate (MUFP). Turnovers of [32P]G6P and MUFP were similar but 2-22 times slower than turnover of [32P]ATP. The nucleotide- and the non-nucleotide dissolved organic phosphorus thus may differ in turnover and significance for competition between bacteria and phytoplankton for P.

Druh

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

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

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Projekt

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Návaznosti

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

Advances in Limnology. Archiv für Hydrobiologie

ISSN

1612-166X

e-ISSN

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Svazek periodika

58

Číslo periodika v rámci svazku

N/A

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

13

Strana od-do

87-99

Kód UT WoS článku

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EID výsledku v databázi Scopus

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