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SESSION 4: GENETICS OF HOSTS – PLANT RESISTANCE TO FUSARIUM, VARIETY DEVELOPMENT P88 - Variation for Fusarium head blight resistance and Fusarium toxins accumulation in winter triticale lines inoculated with Fusarium culmorum T. Góral 1 , H. Wiśniewska 2 , P. Ochodzki 1 , D. Walentyn-Góral 1 , I. Grzeszczak 1 , J. Beletr 2 , Z. Banaszak 3 , M. Pojmaj 3 , D. Kurleto 3 , M. Konieczny 3 , G. Budzianowski 4 , A. Cicha 4 , K. Paizert 4 , H. Woś 4 1 Department of Plant Pathology, Plant Breeding and Acclimatization Institute NRI, Radzików, 05-870 Blonie, Poland; 2 Institute of Plant Genetics, Polish Academy of Sciences, 34 Strzeszyńska str., 60-479 Poznan, Poland; 3 Danko Plant Breeders Ltd., Choryń 27,64-000 Kościan, Poland; 4 Plant Breeding Strzelce Ltd., 20 Główna str., 99-307 Strzelce, Poland E-mail: t.goral@ihar.edu.pl Resistance to Fusarium head blight of 29 winter triticale lines, and three cultivars ‘Borwo’, ‘Fredro’ and ‘Mikado’ was evaluated. Triticale was sown in the field experiments in Cerekwica near Poznań and in Radzików near Warsaw. At flowering, triticale heads were inoculated with three Fusarium culmorum isolates. Fusarium head blight index was scored and after the harvest percentage of Fusarium damaged kernels was assessed. Triticale grain was analyzed for the contents of trichothecenes B (deoxynivalenol and derivatives, nivalenol) and zearalenone. The average FHB indexes were similar in both locations and amounted 19.8% in Radzikow, and 19.9%. in Cerekwica. Percentage of Fusarium damaged kernels was higher in Cerkwica (53.7%) than in Radzików (26.8%). An average content of DON in Radzików amounted to 8,690 ppm and was lower than in the second location – 19.543 ppm. In Cerekwica there were also large quantities of NIV in grain. The average content was 10.048 ppm, while in Radzików it was very low – 0.324 ppm. Considerable amounts of DON derivatives in grain in both locations were detected (1,815 ppm of 3AcDON and 1,913 ppm of 15AcDON). The content of the ZON in the grain from Cerekwica was very high and amounted to 1123 ppb, while in Radzików was 6 times lower - 200 ppb. Concentrations of trichotecenes B in both locations as well as zearalenone in both locations correlated significantly. Relationships between FHB index and mycotoxin contents were statistically insignificant in both locations. In contrast, FDK percentages correlated significantly with mycotoxin contents. In both locations the parallel experiments with 36 winter wheat were carried out. Triticale proved to be less infected than wheat (ears, kernels). However, content of mycotoxins (trichothecenes), was higher in triticale grain than in wheat grain. These results showed that there is a threat of contamination of triticale grain with mycotoxins despite weaker FHB symptoms. Keywords: Fusarium, mycotoxins, resistance, triticale 181
SESSION 4: GENETICS OF HOSTS – PLANT RESISTANCE TO FUSARIUM, VARIETY DEVELOPMENT P89 - Identification of physiological traits in wheat conferring passive resistance to Fusarium head blight S. Jones, J. Foulkes, D. Sparkes, R. Ray University of Nottingham, School of Biosciences, Division of Plant and Crop Sciences, Sutton Bonington Campus, LE12 5RD, UK E-mail: sbxsj@nottingham.ac.uk Fusarium head blight (FHB), caused by a complex of Fusarium and Microdochium species, is a devastating fungal disease of cereals worldwide that leads to reductions of grain yield, quality and safety. Developing cultivars with improved FHB resistance is considered an essential step towards reducing the impact of this disease. This study aimed to identify and quantify plant and ear traits in wheat conferring passive resistance to FHB through disease escape. Two field experiments were carried out in 2010 and 2011 using 5 UK winter wheat cultivars and 10 doubledhaploid lines derived from a cross between a spring wheat line of large-ear phenotype from CIMMYT, Mexico, and the UK winter wheat cultivar, Rialto. All 15 wheat genotypes were ground inoculated at GS 30 using oat grains infected with a mixture of Fusarium graminearum, F. culmorum, F. avenaceum, F. langsethiae, F. poae, Microdochium majus and M. nivale. Plant and ear characteristics of the wheat genotypes were assessed at GS 65. Visual disease symptoms were scored at regular intervals from mid-anthesis onwards and used to calculate the area under the disease progress curve (AUDPC) for each wheat genotype. Multiple linear regression with groups was used to identify significant physiological traits related to AUDPC for the two seasons. Stem length, flag leaf length and ear length were the predominant plant characteristics which accounted for a significant (P
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Bordeaux EFS12 12 th European Fusar
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TABLE OF CONTENTS Welcome from the
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4 SPONSORSHIP The 12 th European Fu
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8 13:00 - 14:00 Lunch 14:00 - 15:00
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10 Session 4: Genetics of Hosts - P
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12 Thursday, May 16 th Session 6: F
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Evidence for birth-and-death evolut
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Future challenges of Fusarium and m
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P35 - Screening deoxynivalenol in o
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P76 - Fusarium verticillioides and
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P113 - Agronomic practices and risk
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ORAL PRESENTATIONS 25
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KEYNOTE LECTURE SESSION 1: FUSARIUM
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SESSION 1: FUSARIUM - GENETICS, GEN
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KEYNOTE LECTURE SESSION 2: SECONDAR
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SESSION 2: SECONDARY METABOLITES -
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SESSION 3: PATHOGENESIS - EPIDEMIOL
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KEYNOTE LECTURE 1 SESSION 4: GENETI
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SESSION 4: GENETICS OF HOSTS - PLAN
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KEYNOTE LECTURE 2 SESSION 4: GENETI
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KEYNOTE LECTURE SESSION 5: DISEASE
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SESSION 5: DISEASE CONTROL AND FORE
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SESSION 6: FUTURE CHALLENGE FOR EUR
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POSTER PRESENTATIONS 91
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de Hoog G. S., 89, 114, 236 de Kler
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Ponts N., 33, 36, 82, 94, 104, 106,
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BOKU-University of Natural Resource
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touatisihem03@yahoo.fr He Xinyao In
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steve.oliver@bioc.cam.ac. uk Ortega
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Subramaniam Gopal Agriculture and A
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