Sensitivity of Erwinia amylovora to high temperatures--possible use of heat treatment for plant propagation material
1990
Keck, M. | Chartier, R. | Zislavsky, W. | Paulin, J.P.
Using 11 strains of different origins the sinsitivity of Erwinia amylovora to high temperatures (30 degrees C, 35 degrees C, 38 degrees C, 40 degrees C) was tested. A rapid decline of the bacterial population occurred at temperatures higher than 30 degrees C and all bacteria were killed after 23h at 40 degrees C. Harmful effects on noninfected pome fruit scions incubated at 38 degrees C, 95% ralative humidity, were observed after 5 days. First investigations with Erwinia amylovora infected plant material showed a certain letal effect on the pathogen inside plant tissues at this range of temperatures.
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