Tests for transmission of Prunus necrotic ringspot and two nepoviruses by Criconemella xenoplax

In two of three trials, detectable color reactions in ELISA for Prunus necrotic ringspot virus (PNRSV) were observed for Criconemella xenoplax handpicked from the root zone of infected peach trees. Criconemella xenoplax (500/pot) handpicked from root zones of peach trees infected with PNRSV failed t...

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Bibliographic Details
Published in:Journal of nematology 1990-10, Vol.22 (4), p.489-495
Main Authors: Yuan, W.Q. (Clemson University, Clemson, SC), Barnett, O.W, Westcott, S.W. III, Scott, S.W
Format: Article
Language:English
Subjects:
CRICONEMELLA
CUCUMIS SATIVUS
DISEASE TRANSMISSION
ILARVIRUS
ILARVIRUSES
NEPOVIRUS
NEPOVIRUSES
PLANT VIRUSES
PRUNUS NECROTIC RINGSPOT ILARVIRUS
prunus necrotic ringspot virus
PRUNUS PERSICA
TOBACCO RINGSPOT NEPOVIRUS
tobacco ringspot virus
TOMATO RINGSPOT NEPOVIRUS
TRANSMISION DE ENFERMEDADES
TRANSMISSION DES MALADIES
VIRUS DE LAS PLANTAS
VIRUS DES VEGETAUX
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Summary:In two of three trials, detectable color reactions in ELISA for Prunus necrotic ringspot virus (PNRSV) were observed for Criconemella xenoplax handpicked from the root zone of infected peach trees. Criconemella xenoplax (500/pot) handpicked from root zones of peach trees infected with PNRSV failed to transmit the virus to cucumber or peach seedlings. The nematode also failed to transmit tomato ringspot (TomRSV) or tobacco ringspot viruses between cucumbers, although Xiphinema americanum transmitted TomRSV under the same conditions. Plants of peach, cucumber, Chenopodium quinoa, and Catharanthus roseus were not infected by PNRSV when grown in soil containing C. xenoplax collected from root zones of PNRSV-infected trees. Shirofugen cherry scions budded on Mazzard cherry seedling rootstocks remained symptomless when transplanted into root zones of PNRSV-infected trees. Virus transmission was not detected by ELISA when C. xenoplax individuals were observed to feed on cucumber root explants that were infected with PNRSV and subsequently fed on roots of Prunus besseyi in agar cultures. Even if virus transmission by C. xenoplax occurs via contamination rather than by a specific mechanism, it must be rare.
ISSN:0022-300X
2640-396X