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Bioluminescence characteristics of Lake Shira water
Vetrova, E.; Kratasyuk, V.; Kudryasheva, N. (2002). Bioluminescence characteristics of Lake Shira water. Aquat. Ecol. 36(2): 309-315
In: Aquatic Ecology. Springer: Dordrecht; London; Boston. ISSN 1386-2588; e-ISSN 1573-5125, meer
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| Trefwoorden |
Bioassay
Bioassay
Ecology
Luminescence > Bioluminescence
Monitoring
PNE, Russia, Siberia
Water bodies > Inland waters > Lakes > Salt lakes
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| Auteurs | | Top |
- Vetrova, E.
- Kratasyuk, V.
- Kudryasheva, N.
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| Abstract |
Bioluminescence bioassays based on luminous bacteria (Photobacterium phosphopreum) and coupled enzyme system NADH-FMN-oxidoreductase-luciferase were adapted for monitoring the saline-water conditions of Lake Shira (Khakasia, Siberia). The differences in bioluminescence responses have been found to be related to the salt composition and the oxidation-reduction properties of water. Bioluminescent kinetics parameters, which are mostly sensitive to pollution under conditions of saline water, have been observed. The enzymatic system in the presence of 1,4-benzoquinone are shown to be more sensitive to redox characteristics of the salt water than this in the absence of 1,4-benzoquinone. 1,4-benzoquinone should be applied for the preparation of a model solution for the monitoring of redox properties of the salt water. Using this technique, the results of bioluminescence analysis are used to construct a heterogeneity map that characterizes the spatial and temporal water quality of lake Shira. A partial map was based on the bioluminescence characteristics of water samples taken along the shoreline, sampling stations in the different places and in different depths of the lake. It has been demonstrated that the bioluminescence assay measurements must be done within two hours after the sampling time. |
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