ISHS Acta Horticulturae 386: XVI International Symposium on Fruit Tree Virus diseases
BEHAVIOUR OF TWO ISOLATES OF PLUM POX VIRUS INOCULATED ON PEACH AND APRICOT TREES: FIRST RESULTS |
| Authors: | J.B. Quiot, M. Boeglin, C. Adamolle, T. Candresse, G. Labonne, L.Y. Renaud |
| Abstract:
In France, plum pox virus (PPV) was first detected in 1970 and a low level of prevalence was maintained in most of the orchards by a careful sanitation practiced by the "Service de la Protection des Végétaux". However, during the last five years, observations have shown that PPV epidemics seem to progress faster in some peach than in apricot orchards (Candresse et. al., 1993). An analysis of the PPV isolates collected in numerous orchards has shown that two main groups of PPV are present. They can be differentiated by the electrophoretic mobility of their coat protein (Adamolle et al., 1990; Bousalem et al., 1994), or by the occurence of a restriction site on the 3' part of the coat protein gene detected after RT-PCR (Wetzel et al., 1991) or after immunocapture RT-PCR (Wetzel et al., 1992). These groups have been found to be related to the types M and D described by Kerlan and Dunez (1979) on the basis of their serological reactions in double-immunodiffusion. Investigations were undertaken in order to compare some epidemiological properties of the two PPV groups. | |
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