Control of Leveillula taurica in tomato by Acremonium alternatum is by induction of resistance, not Hyperparasitism
Kasselaki, A.-M., Shaw, M.W., Malathrakis, N.E. and Haralambous, J. (2006) Control of Leveillula taurica in tomato by Acremonium alternatum is by induction of resistance, not Hyperparasitism. European Journal of Plant Pathology, 115 (2). pp. 263-267. ISSN 0929-1873
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To link to this article DOI: 10.1007/s10658-006-9010-y
Spores of the hyperparasite Acremonium alternatum reduced powdery mildew infection by Leveillula taurica on greenhouse tomato. The effect was slightly increased when spores were applied killed, and therefore not due to direct parasitism. The effect was systemic, protecting untreated leaves above the treated ones. Spores killed by heat had more effect than when killed by UV, so the effect was presumably due to induction of host resistance by substances released when cells were heat killed. The size of the effect depended upon leaf age and level of infection. Effects on primary infection and expansion of successful infections appear to be under independent control.
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