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„Health“ food called Huitlacoche, an expensive Mexican speciality: Maize infected with Ustilago maydis, a fungus which produces dangerous fumonisin, internet.

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Presentation on theme: "„Health“ food called Huitlacoche, an expensive Mexican speciality: Maize infected with Ustilago maydis, a fungus which produces dangerous fumonisin, internet."— Presentation transcript:

1 „Health“ food called Huitlacoche, an expensive Mexican speciality: Maize infected with
Ustilago maydis, a fungus which produces dangerous fumonisin, internet source

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3 Huitlacoche on the dish in Mexico City 2002, a delicious speciality, Foto K.Ammann

4 Huitlacoche on the dish in Mexico City 2002, a delicious speciality, Foto K.Ammann

5 Aspergillus kernel rot symptoms associated with insect damage
Aspergillus kernel rot symptoms associated with insect damage. Photo courtesy Don White. Munkvold, G. & Hellmich, R. (1999), Electronic Source: Genetically modified, insect resistant corn: Implications for disease management, A. Feature, APSnet, Plant Pathology Online, The American Phytopathological Society (APS) Copyright , accessed: 2004

6 Corn earworm larva feasting on a corn ear
European corn borer larva tunneling in a corn stalk Southwestern corn borer larva Munkvold, G. & Hellmich, R. (1999), Electronic Source: Genetically modified, insect resistant corn: Implications for disease management, A. Feature, APSnet, Plant Pathology Online, The American Phytopathological Society (APS) Copyright , accessed: 2004

7 Fusarium ear rot symptoms associated with insect damage.
Munkvold, G. & Hellmich, R. (1999), Electronic Source: Genetically modified, insect resistant corn: Implications for disease management, A. Feature, APSnet, Plant Pathology Online, The American Phytopathological Society (APS) Copyright , accessed: 2004

8 Gibberella stalk rot Munkvold, G. & Hellmich, R. (1999),
Electronic Source: Genetically modified, insect resistant corn: Implications for disease management, A. Feature, APSnet, Plant Pathology Online, The American Phytopathological Society (APS) Copyright , accessed: 2004

9 Anthracnose stalk rot Munkvold, G. & Hellmich, R. (1999),
Electronic Source: Genetically modified, insect resistant corn: Implications for disease management, A. Feature, APSnet, Plant Pathology Online, The American Phytopathological Society (APS) Copyright , accessed: 2004

10 Munkvold, G. & Hellmich, R. (1999),
Electronic Source: Genetically modified, insect resistant corn: Implications for disease management, A. Feature, APSnet, Plant Pathology Online, The American Phytopathological Society (APS) Copyright , accessed: 2004

11 Ear samples from a 1997 field trial
Ear samples from a 1997 field trial. Non-Bt hybrid is heavily damaged by insect feeding and Fusarium ear rot, but the near-isogenic Bt hybrid has little or no damage Munkvold, G. & Hellmich, R. (1999), Electronic Source: Genetically modified, insect resistant corn: Implications for disease management, A. Feature, APSnet, Plant Pathology Online, The American Phytopathological Society (APS) Copyright , accessed: 2004

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