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The transmission of potato virus Y by aphids of different vectoring abilities
Author(s) -
GIBSON R. W.,
PAYNE R. W.,
KATIS N.
Publication year - 1988
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1988.tb03279.x
Subject(s) - macrosiphum euphorbiae , potato virus y , myzus persicae , biology , aphid , virology , transmission (telecommunications) , rhopalosiphum padi , potyvirus , virus , aphididae , botany , plant virus , homoptera , pest analysis , electrical engineering , engineering
SUMMARY Adult apterae of Myzus persicae and Macrosiphum euphorbiae that did not transmit potato virus Y N (PVY N ) in a first test were as likely to transmit the virus in a subsequent test as those that did transmit on the first occasion. Only 16% of M. persicae that were allowed a single acquisition probe into a leaf infected with both PVY O and PVY N transmitted both strains, 37% transmitted either PVY O or PVY N and 47% did not transmit. There was no difference in the duration of probes that did or did not result in virus transmission. Statistical models were fitted to data on the frequency of transmission of PVY O , PVY N or both PVY O and PVY N by M. persicae and by aphids of poorer vector species, M. euphorbiae and Rhopalosiphum padi. Transmission of the two viruses ocurred independently of each other and consequently transmission of both was rare with M. euphorbiae and R. padi. Mineral oil applied to leaves infected with both strains diminished the frequency of transmission by M. persicae. Fitted models suggested that the aphids that probed through the oil droplets on leaves treated 30 min previously did not transmit virus, and that 24 h later, when the droplets had spread, aphids probing through them could transmit but with a decreased ability.