planktothrix presentation29 07 3 [kompatibilitätsmodus] · 2015-09-16 · part 1 presentation 15...
TRANSCRIPT
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www.bbe-moldaenke.de
3rd Webinar
Planktothrix
rubescens
bbe - the company for advanced algae and cyanobacteria measurement
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www.bbe-moldaenke.de
Welcome
bbe Team
Detlev Lohse Frederike Lohse Sönke Kobarg
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Part 1 Presentation 15 minPart 2 Demonstration 3 minPart 3 Interview 10 min
FeedbackFollow up
Webinar – Planktotrix rubescens
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MONITORING THE APPEARANCE OF THE CYANOBACTERIA
PLANKTOTHRIX RUBESCENS
Detlev Lohsefrom the bbe Moldaenke company, Germany
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North Rhine -Westphalia16,6 Mio. inhabitants (2013)
Water consumption 130 l/day
= 2,2 Mio. m 3/day total
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Sengbach dam 20 ha2,8 Mio. m 3
Maximum depth 36 m
The area of interest in 2013
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massive dam with waterworks Glüder
Extraction for drinking water processing
Planktothrix rubescens
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Planktothrix rubescens
Cyanotoxin
Reduce water qualityRaise health risksAdditional counteractionsRaise costsClose of extraction
The threat of the Planktothrix
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WHO Guidelines 1999
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Excitation of pigments withlight of different wavelengths
Determination of the red chlorophyll fluorescence
Accessory pigments
+ Chlorophyll a
Photosynthetic membrane
How it works: fluorometric measurement of algal and cyanobacterial microplankton
Light emisson
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What are the Algae classes?
Algae classes contain different accessory pigments
Chlorophyll a/b-Xanthophyll
Chlorophyll a/c-Phycobiliprotein
Phycobilisomes(Phycoerythrin)
Chlorophyll a/c-Xanthophyll
Phycobilisomes(Phycocyanin)
Chlorophyta CryptophytaRhodophyta
Heterokonto-phyta
HaptophytaDinophyta
CyanophytaGlaucophyta
Green MixedRedBrownBlueSpectralGroup
PeripheralAntenna
Division
…which affect the chlorophyll fluorescence emission in characteristic pattern
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Who is who in algae : norm spectra
… represent characteristic red fluorescence of algal cells on excitation with different wavelengths
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Addition of Plantothrix rubescens spectrum
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Structure of phycobilisomes
Phycocyanin
Phycoerythrin
Allophycocyanin
Chlorophyll
Thylakoid membrane
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• phycobilins close the „gap“ in the absorption spectra of chlorophyll and carotenoidsand act as antenna pigments • redish cyanobacteria contain phycoerythrin (Planktothrix rubescens)
Spectral features of the Planktothrix rubescens
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What can multispectral fluorometry accomplish ?
� Differentiation of algal classes in a complex mixtu re� Determination of cyanobacteria i.e. Planktothrix rubescens� Determination of chlorophyll content� Correction for fluorescent interfering substances� Field measurement
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Depth analysis: distribution of Planktothrix rubescens
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Gas vesicles• Protein cylinders• Hollow , gas filled• Water (cytoplama)
exclusion• Sensitive to outer
pressure• Sensitive to high
photosynthesisrate
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Scheme of main types of active movementsin cyanobacteria
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The point of extraction: compare the cell counts
and the OnlineAnalyser
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FluoroProbe profiles in a German river dam
E2 – E6 = raw water extraction points
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ConclusionFluorometric depth profiling and flow through oneline analysis are a sensitive and rapid tool for the detection of upcoming Plankthotrix
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Acknowledgement
Public Services SolingenAndreas Mokros, Waterworks Glüder