International Journal of Acarology (2013) 39, 235-238

Jan Hubert, Marta Nesvorná, Martina Hujslová, Jitka Stará, Jana Hajslová and Václav Stejskal (2013)
Acarus siro and Tyrophagus putrescentiae (Acari: Acarididae) transfer of Fusarium culmorum into germinated barley increases mycotoxin deoxynivalenol content in barley under laboratory conditions
International Journal of Acarology 39 (3), 235-238
Abstract: The possibility of transferring Fusarium poae ((Peck) Wollenw.) and Fusarium culmorum ((W. G. Sm.) Sacc.) via mites into germinating barley was tested under laboratory conditions. The mites Acarus siro Linnaeus, 1758 and Tyrophagus putrescentiae (Schrank, 1781) were preincubated on fungal cultures and then introduced into germinated barley in two mite population densities: 10 and 50 individuals per 20 g of barley. The negative controls were germinated barley without added mites and barley with mites not preincubated on the fungal cultures. The mycotoxin deoxynivalenol (DON) content in germinated barley was used as the marker of successful fungal transfer and colonization. DON concentrations were analysed 5 days after mite colonization. The mite preincubation on F. poae did not significantly increase DON concentration in barley. However, preincubation of mites on F. culmorum increased DON concentration in germinated barley by 5 and 8 times for A. siro and T. putrescentiae, respectively. The population density of mites showed no significant effect on DON concentration in germinated barley. The results of the experiments are discussed as a possible means of mite transfer of mycotoxin-producing fungi.
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Link to article at publishers website
Database assignments for author(s): Jan Hubert, Vaclav Stejskal, Jitka Stara

Research topic(s) for pests/diseases/weeds:
transmission/dispersal of plant diseases

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tyrophagus putrescentiae	Barley (Hordeum vulgare)
	Acarus siro	Barley (Hordeum vulgare)
	Fusarium poae	Barley (Hordeum vulgare)
	Fusarium culmorum	Barley (Hordeum vulgare)