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Fusarium and mycotoxin analysis AVEQ - WP 5
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WP 5: Partners P4 Eurofins WEJ Contaminants GmbH (Germany) Scarlett Biselli, Ole Winkelmann, Simone Staiger P6(CRA – MAC) Bergamo (Italy) Rita Redaelli P8(CRA-GPG) Fiorenzuola (Italy) Valeria Terzi, Caterina Morcia P15Agrotest Fyto, Ltd., Kroměříž (Czech Republic) Ivana Polisenska
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Methods of analysis? WP 5: Task and questions Which Fusarium species? Which mycotoxins? Analyse mycotoxins and identify Fusarium species To dehulle or not to dehulle?
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WP 5: Methods I DON and T-2 (Commission regulation (EC) No. 1881/2006) ELISA (LOD for DON < 20 ppb, T-2 < 5 ppb) LC-MS/MS DON, T-2, HT-2, ZEA, NIV, DAS, 3-ADON, 15-ADON harmonisation of ELISA laboratories determination of Fusarium species by PCR (P8)
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WP 5: Methods II samples are not dehulled before analysis COMMISSION REGULATION (EC) No 1881/2006
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Methods III - samples DON and T-2 by ELISA 100 inoculated accessions from three locations DON and T-2 by ELISA 100 non inoculated accessions from one location 11 standards in two replications from all locations, both inoculated and non inoculated DON, T-2, HT-2, ZEA, NIV, DAS, 3-ADON, 15-ADON by LC-MS/MS for standards from all locations both I and NI) In total: 2200 ELISA, 200 LC-MS/MS, 200 PCR analysis Harvest years 2008, 2009; each year:
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- accessions (105) - 2008 - DON - inoculation - CZE, GER,ROM Results μg/kg
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Results - accessions (105) - 2008 - T-2 - inoculation - CZE, GER,ROM
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The least contaminated genotypes, 2008 28,529,5GartonSupreme 31,324,7Typhon 36,723,0Joanette 22,320,0Miku 15,315,0Atego 36,710,3Samuel 15,0 6,7Rauhhafer aus Neustadt Mean rank T-2 Mean rank DON Ranking at three locations, 103 genotypes
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Standards - inoculation, 2008, DON
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Standards - CZE - 2008, 2009 - DON, T-2 - inoculation - the lowest Mina, Saul - the highest Genziana, Krezus, Evora μg/kg
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-2008, 2009 - DON, T-2 - inoculation μg/kg Standards - GER - Mina and Saul in the middle - the highest Genziana and Evora
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Standards - natural infection, 2008, DON
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- 2008, 2009 - DON, T-2 - natural infection Standards - CZE - low level in 2009 - the lowest Mina and Saul
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- 2008, 2009 - DON, T-2 - natural infection Standards - IT - very low in 2009 - Mina and Saul low
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Microscopic fungi inoculum Different fungi differ in their requirements on environment conditions substrate environment conditions Perithecium Giberella zeae, 14.5.2009
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Mycotoxin concentration is dependant on: Region- Mainly impact of weather - (cropping practices) Cereal crop - Impact of host resistance to different fusarium pathogens Year - Impact of weather Influence is different for different mycotoxins
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Field variability, DON
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Field variability, T-2
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ELISA vs. LC-MS/MS verification of ELISA results analysis of other mycotoxins
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LC-MS/MS analysis, natural infection, CZE
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Bologna, 2010 Dissemination of the results SIGA meeting 2010 (Italian Society of Agricultural Genetics) Tulln (Austria), Worldwide Mycotoxin Reduction in Food and Feed Chains - ISM Conference 2009 Krakow (Poland), 2009 Brno (CZE), Czech and Slovak conference about Plant Protection 2009 EUCARPIA meeting, Cambridge, April 2010 EOC Ystad, 2010
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