European Journal of Plant Pathology (1996) 102, 61-68

D.J.F. Brown, W.M. Robertson, R. Neilson, F. Bem and D.J. Robinson (1996)
Characterization and vector relation of a serologically distinct isolate of tobacco rattle tobravirus (TRV) transmitted by Trichodorus similis in northern Greece
European Journal of Plant Pathology 102 (1), 61-68
Abstract: A virus isolated from diseased tobacco plants growing in Macedonia, northern Greece, had host range and physico-chemical properties typical of a tobravirus. Although it was serologically unrelated to any of the ten tobravirus isolates tested, it reacted in spot hybridization tests with a probe derived from RNA-1 of tobacco rattle virus (TRV) strain SYM. Therefore, the isolate probably represents a previously undescribed serotype of TRV. Male, female and juvenile Trichodorus similis nematodes recovered from the rhizosphere of the diseased tobacco plants transmitted TRV in each of three laboratory experiments. In two of these experiments 50% and 54%, respectively, of the nematodes transmitted virus to Petunia hybrida bait plants, whereas only 18% transmitted virus to Nicotiana tabacum plants in a third test. Ultrathin sections of the feeding apparatus of individual nematodes, which had transmitted virus, were examined by electron microscopy. Virus particles were observed, retained as a monolayer in the apices of the oesophageal lumen and as a group of particles within a matrix in the open part of the lumen.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Derek J.F. Brown, Roy Neilson

Research topic(s) for pests/diseases/weeds:
transmission/dispersal of plant diseases

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tobacco rattle virus	Tobacco (Nicotiana tabacum)	Greece
	Trichodorus similis	Tobacco (Nicotiana tabacum)	Greece