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The pathogen causing Dutch elm disease makes host trees attract insect vectors

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Zitation

McLeod, G., Gries, R., von Reuß, S. H., Rahe, J., McIntosh, R., König, W., et al. (2005). The pathogen causing Dutch elm disease makes host trees attract insect vectors. Proceedings of the Royal Society of London Series B-Biological Sciences, 272(1580), 2499-2503. doi:10.1098/rspb.2005.3202.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-C385-8
Zusammenfassung
Dutch elm disease is caused by the fungal pathogen Ophiostoma novo-ulmi which is transmitted by the native elm bark beetle, Hylurgopinus rufipes. We have found that four semiochemicals (the monoterpene (-)- beta-pinene and the sesquiterpenes (-)-alpha-cubebene, (+)-spiroaxa-5,7-diene and (+)-delta-cadinene) from diseased American elms, Ulmus americana, synergistically attract H. rufipes, and that sesquiterpene emission is upregulated in elm trees inoculated with O. novo-ulmi. The fungus thus manipulates host trees to enhance their apparency to foraging beetles, a strategy that increases the probability of transportation the pathogen to new hosts.