Importance of dissolved organic carbon for phytoplankton nutrition in a eutrophic reservoir

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F10%3A00340601" target="_blank" >RIV/60077344:_____/10:00340601 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Importance of dissolved organic carbon for phytoplankton nutrition in a eutrophic reservoir

Original language description

We performed 4 experiments with size fractionated phytoplankton organic C uptake in a eutrophic Římov Reservoir. Samples from surface and euphotic depth were incubated at in situ depths in light and dark bottles arrangement with 3H amino acids and glucose. Moreover, we measured silica deposition and chlorophyll content in diatom cells without and with glucose. Phytoplankton uptake of both substrates was low regardless the incubation depth. Thus, mixotrophic nutrition of the phytoplankton was of low importance under natural conditions. However, glucose addition in micromolar concentrations resulted in asignificant increase in diatom silification rates in a light bottle variant. Interestingly, chlorophyll fluorescence in diatom cells markedly decreased after the glucose addition indicating a potential restructuring of cell metabolism to benefit from a remarkably high concentration of available organic C in the environment.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DA - Hydrology and limnology

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2010

Confidentiality

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

Name of the periodical

Journal of Plankton Research

ISSN

0142-7873

e-ISSN

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Volume of the periodical

32

Issue of the periodical within the volume

3

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

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UT code for WoS article

000274339900009

EID of the result in the Scopus database

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