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Fusarium head blight (FHB) in Flanders: population diversity, inter-species associations and DON contamination in commercial wheat varieties

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Abstract
The presence of Fusarium spp. causing Fusarium head blight (FHB) of wheat was studied in Flanders (Belgium) in 2007 and 2008. Symptoms, deoxynivalenol content (DON), Fusarium spp. and trichothecene chemotypes were determined at seven locations on different commercial wheat varieties. Overall, significant differences in disease pressure between locations and varieties were observed within 1 year. In addition, we were able to detect consistent and significant resistance differences among the common varieties both under high disease pressure (2007) and low disease pressure (2008). The accumulation of DON was not related to the presence of F. graminearum but showed a clear correlation with rainfall during and after the period of anthesis. During the two-year survey, characterisation of 756 Fusarium samples by species- specific PCR designated F. poae and F. graminearum as the predominant species in Flanders. Furthermore, most of the ears were colonised by multiple FHB pathogens in 2007 whereas the Fusarium population was less complex in 2008. Log-linear analysis of these multiple (two- and three-way) species interactions revealed a clear correlation between F. poae and several pathogens of the FHB disease complex. Finally, chemotype analysis showed that F. culmorum and F. graminearum were respectively of the NIV chemotype and DON chemotype. 3-ADON and 15-ADON chemotypes occurred in more or less equal amounts within the F. graminearum population both in 2007 and 2008. The congruence of these results with observations throughout Europe are discussed.
Keywords
Fusarium, Deoxynivalenol, Resistance Survey, PCR ASSAY, NIVALENOL CHEMOTYPES, EAR BLIGHT, IN-VITRO, DEOXYNIVALENOL, GRAMINEARUM, CEREALS, MYCOTOXINS, RESISTANCE, CULMORUM

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Chicago
Audenaert, Kris, Raf Van Broeck, B Bekaert, Frederik De Witte, Betty Heremans, Kathy Messens, Monica Höfte, and Geert Haesaert. 2009. “Fusarium Head Blight (FHB) in Flanders: Population Diversity, Inter-species Associations and DON Contamination in Commercial Wheat Varieties.” European Journal of Plant Pathology 125 (3): 445–458.
APA
Audenaert, Kris, Van Broeck, R., Bekaert, B., De Witte, F., Heremans, B., Messens, K., Höfte, M., et al. (2009). Fusarium head blight (FHB) in Flanders: population diversity, inter-species associations and DON contamination in commercial wheat varieties. EUROPEAN JOURNAL OF PLANT PATHOLOGY, 125(3), 445–458.
Vancouver
1.
Audenaert K, Van Broeck R, Bekaert B, De Witte F, Heremans B, Messens K, et al. Fusarium head blight (FHB) in Flanders: population diversity, inter-species associations and DON contamination in commercial wheat varieties. EUROPEAN JOURNAL OF PLANT PATHOLOGY. 2009;125(3):445–58.
MLA
Audenaert, Kris, Raf Van Broeck, B Bekaert, et al. “Fusarium Head Blight (FHB) in Flanders: Population Diversity, Inter-species Associations and DON Contamination in Commercial Wheat Varieties.” EUROPEAN JOURNAL OF PLANT PATHOLOGY 125.3 (2009): 445–458. Print.
@article{692089,
  abstract     = {The presence of Fusarium spp. causing Fusarium head blight (FHB) of wheat was studied in Flanders (Belgium) in 2007 and 2008. Symptoms, deoxynivalenol content (DON), Fusarium spp. and trichothecene chemotypes were determined at seven locations on different commercial wheat varieties. Overall, significant differences in disease pressure between locations and varieties were observed within 1 year. In addition, we were able to detect consistent and significant resistance differences among the common varieties both under high disease pressure (2007) and low disease pressure (2008). The accumulation of DON was not related to the presence of F. graminearum but showed a clear correlation with rainfall during and after the period of anthesis. During the two-year survey, characterisation of 756 Fusarium samples by species- specific PCR designated F. poae and F. graminearum as the predominant species in Flanders. Furthermore, most of the ears were colonised by multiple FHB pathogens in 2007 whereas the Fusarium population was less complex in 2008. Log-linear analysis of these multiple (two- and three-way) species interactions revealed a clear correlation between F. poae and several pathogens of the FHB disease complex. Finally, chemotype analysis showed that F. culmorum and F. graminearum were respectively of the NIV chemotype and DON chemotype. 3-ADON and 15-ADON chemotypes occurred in more or less equal amounts within the F. graminearum population both in 2007 and 2008. The congruence of these results with observations throughout Europe are discussed.},
  author       = {Audenaert, Kris and Van Broeck, Raf and Bekaert, B and De Witte, Frederik and Heremans, Betty and Messens, Kathy and H{\"o}fte, Monica and Haesaert, Geert},
  issn         = {0929-1873},
  journal      = {EUROPEAN JOURNAL OF PLANT PATHOLOGY},
  keyword      = {Fusarium,Deoxynivalenol,Resistance Survey,PCR ASSAY,NIVALENOL CHEMOTYPES,EAR BLIGHT,IN-VITRO,DEOXYNIVALENOL,GRAMINEARUM,CEREALS,MYCOTOXINS,RESISTANCE,CULMORUM},
  language     = {eng},
  number       = {3},
  pages        = {445--458},
  title        = {Fusarium head blight (FHB) in Flanders: population diversity, inter-species associations and DON contamination in commercial wheat varieties},
  url          = {http://dx.doi.org/10.1007/s10658-009-9494-3},
  volume       = {125},
  year         = {2009},
}

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