Are bacteria the major producers of extracellular glycolytic enzymes in aquatic environments?

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F04%3A00005863" target="_blank" >RIV/60076658:12310/04:00005863 - isvavai.cz</a>

Alternative codes found

RIV/60077387:_____/04:00104268

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Are bacteria the major producers of extracellular glycolytic enzymes in aquatic environments?

Original language description

In aquatic microbial ecology, it has been considered that most extracellular enzymes except phosphatases are of bacterial origin. We tested this paradigm by evaluating the relationship between bacterial cell number and the activity of three glycolytic enzymes from 17 fresh waters and also from a laboratory experiment. Our large sets of pooled data do not seem to support such a simple explanation, because we found only a weak correlation of bacterial number with activity of alpha-glucosidase (r(s) = 0.63), beta-glucosidase (r(s) = 0.45), and beta-N-acetythexosaminidase (r(s) = 0.44). We also tested relations of the enzymatic activities to potential sources of natural substrates: dissolved organic carbon (DOC) and phytoplankton (as chlorophyll a). Theircorrelations with the enzymatic activities tested were very weak or insignificant. On the other hand, we found evidence for distinct producers of extracellular enzymes by analysing enzyme kinetics. The kinetics usually did not follow the

Czech name

Jsou bakterie největším producentem extracelulárních enzymů ve vodním prostředí?

Czech description

Jsou bakterie největším producentem extracelulárních enzymů ve vodním prostředí?

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)

Publication year

2004

Confidentiality

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

Name of the periodical

International Review of Hydrobiology

ISSN

1434-2944

e-ISSN

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Volume of the periodical

89

Issue of the periodical within the volume

1

Country of publishing house

DE - GERMANY

Number of pages

16

Pages from-to

102-117

UT code for WoS article

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EID of the result in the Scopus database

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