001     828386
005     20210129230100.0
037 _ _ |a FZJ-2017-02347
041 _ _ |a English
100 1 _ |0 P:(DE-Juel1)129471
|a Hofmann, Diana
|b 0
|e Corresponding author
|u fzj
111 2 _ |a IWA Conference on Algal Technologies for Wastewater Treatment and Resource Recovery
|c Delft
|d 2017-03-16 - 2017-03-17
|w The Netherlands
245 _ _ |a 33P Labeling of Chlorella vulgaris algae for methodical studies
260 _ _ |c 2017
336 7 _ |0 33
|2 EndNote
|a Conference Paper
336 7 _ |2 BibTeX
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336 7 _ |2 DRIVER
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336 7 _ |2 DataCite
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|s 1493360485_21050
|x Other
520 _ _ |a Phosphorus (P), a major nutrient for plants, is a finite non-renewable resource of modern agriculture. Nevertheless, the efficiency of P usage today hardly reaches 20% with the rest ending in wastewater or carried away by runoff from fields to rivers and to the oceans. In our study, we will investigate the potential to close the cycle from waste back to agriculture by exploiting the capability of microalgae to accumulate large P quantities. This potential of algae for a ‘luxury P uptake’ will be combined with the benefit of delayed release of P from the algal biomass applied as a fertilizer to soil. To achieve our goals, first we selected best suitable algae with regard to maximal P incorporation. Afterwards, the pre-culture conditions were optimized. In several experiments we compared the behavior of washed and different starved out algae in the following, simple experimental setup: erlenmayer flasks with algae in radioactive labelled nutrition solution (in form of orthophosphate) were gently shaked in an incubator under appropriated illumination. In various time intervals sampling occurs and the aliquots were centrifuged. The sedimented, labelled algae were digested with concentrated HNO3. Thereafter, both, the digested solutions as well as the supernatants containing still free orthophosphate were measured in the liquid scintillation counter (LSC) for their activities. Effects of lighting were additional investigated as well as the possibility to label greater amounts by means of using algae different optical depths. As result, main influence to achieve fast and possibly complete incorporation of the label is an extreme low, but not missing phosphorous content in the nutrition solution, as we studied by systematic investigations using hungry algae out of the pre-culture. In future, in such way labelled algae shall be used for rhizotrone experiments to study how P in algae derived fertilizer deploys to the soil and is taken up by wheat plants by means of bioimaging. Furthermore, soil aliquots as well as different plant parts were digested after harvest and measured in LCS for quantitation purposes.
536 _ _ |0 G:(DE-HGF)POF3-582
|a 582 - Plant Science (POF3-582)
|c POF3-582
|f POF III
|x 0
536 _ _ |0 G:(BioSC)20172303
|x 1
|c 20172303
|a AF AlgalFertilizer - AlgalFertilizer (20172303)
536 _ _ |0 G:(DE-Juel1)BioSC
|a BioSC - Bioeconomy Science Center (BioSC)
|c BioSC
|x 2
700 1 _ |0 P:(DE-Juel1)165137
|a Schiedung, Henning
|b 1
|u fzj
700 1 _ |0 P:(DE-Juel1)168528
|a Ackermann, Bärbel
|b 2
|u fzj
700 1 _ |0 P:(DE-Juel1)159104
|a Schreiber, Christina
|b 3
|u fzj
700 1 _ |0 P:(DE-Juel1)159592
|a Nedbal, Ladislav
|b 4
|u fzj
700 1 _ |0 P:(DE-Juel1)129427
|a Amelung, Wulf
|b 5
|u fzj
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|a DE-HGF
|b Key Technologies
|l Key Technologies for the Bioeconomy
|v Plant Science
|x 0
|4 G:(DE-HGF)POF
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914 1 _ |y 2017
920 _ _ |l yes
920 1 _ |0 I:(DE-Juel1)IBG-2-20101118
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980 _ _ |a poster
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980 _ _ |a I:(DE-Juel1)IBG-2-20101118
980 _ _ |a UNRESTRICTED


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