Journal ArticleDOI
Sites of virus retention in the alimentary tract of the nematode vectors, Xiphinema diversicaudatum (Micol.) and X. index (Thorne and Allen)
C. E. Taylor,W. M. Robertson +1 more
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TLDR
Electron microscopy of thin sections of Xiphinema diversicaudatum and X. index fed on plants infected respectively with arabis mosaic and grapevine fanleaf viruses showed that the viruses are retained as a monolayer of particles adsorbed on to the cuticle lining the lumina of the odontophore (stylet extension), anterior oesophagus andOesophageal bulb.Abstract:
SUMMARY
Electron microscopy of thin sections of Xiphinema diversicaudatum and X. index fed on plants infected respectively with arabis mosaic and grapevine fanleaf viruses showed that the viruses are retained as a monolayer of particles adsorbed on to the cuticle lining the lumina of the odontophore (stylet extension), anterior oesophagus and oesophageal bulb. During the moult of the nematode the cuticular lining is shed and together with the detached virus particles is ingested into the intestine through the oesophago-intestinal valve; this supports the limited experimental evidence that viruses transmitted by X. diversicaudatum and X. index are not retained through the moult.read more
Citations
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Journal ArticleDOI
Directory of virus and virus-like diseases of the grapevine and their agents
TL;DR: The importance of the grapevine industry and the magnitude of the problems caused by these pathogens has generated wide interest which has fostered intensive research which has been especially active at the international scale from the late 1950’s onwards.
Journal ArticleDOI
Grapevine fanleaf virus: still a major threat to the grapevine industry
P. Andret-Link,C. Laporte,L. Valat,Christophe Ritzenthaler,Gérard Demangeat,Emmanuelle Vigne,V. Laval,P. Pfeiffer,C. Stussi-Garaud,Marc Fuchs +9 more
TL;DR: A comprehensive overview of the most significant advances made over the past 15 years on GFLV and discusses novel control strategies for one of the major threats to the grapevine industry worldwide can be found in this article.
Book ChapterDOI
An ingestion-egestion hypothesis of noncirculative virus transmission
TL;DR: In this article, the ingestion-egestion hypothesis non-circulative virus transmission is discussed, and two classification systems have been used to describe virus transmissions by aphids and leafhoppers: one is based on how long vectors retain virus, and the other on where and how virus is carried by the vector.
Book ChapterDOI
Control of viruses infecting grapevine.
TL;DR: Control measures of the major grapevine viral diseases are reviewed with emphasis on the management of vectors of viruses using cultural, biological, and chemical methods, and the production of resistant grapevines mainly through the application of genetic engineering.
Journal ArticleDOI
The specific transmission of Grapevine fanleaf virus by its nematode vector Xiphinema index is solely determined by the viral coat protein
TL;DR: Results demonstrate that the coat protein is the sole viral determinant for the specific spread of GFLV by X. index unlike none with the 2CCP of ArMV, regardless of the mutations within the 2BMP C-terminus.
References
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Journal ArticleDOI
Laboratory and field studies on the relation of arabis mosaic virus to its nematode vector Xiphinema diversicaudatum (Micoletzky).
B. D. Harrison,R. D. Winslow +1 more
TL;DR: It is suggested that both X. diversicaudatum and AMV are common constituents of natural woodland in Britain and that their incidence has decreased since the advent of agriculture.
Journal ArticleDOI
Further Electron Microscopic Observations of Xiphinema Index
TL;DR: The use of dimethyl sulfoxide followed by Os04 as a fixation technique has made it possible to study the morphology of Xiphinema index at a higher resolution level than before and related to their possible function in virus transmission by this nematode.
Journal ArticleDOI
Sap-transmissible viruses associated with diseases of grape vines in Europe and North America.
TL;DR: Sap-Transmissible Viruses Associated With Diseases of Grape Vines in Europe and North America and how these viruses are transmitted through contact chemoreception and phagocytosis are studied.
Journal ArticleDOI
The location of raspberry ringspot and tomato black ring viruses in the nematode vector, Longidorus elongatus (de Man)
C. E. Taylor,W. M. Robertson +1 more
TL;DR: Electron microscopy of thin sections of Longidorus elongatus (de Man) fed on plants infected with raspberry ringspot and tomato black ring viruses showed virus-like particles in the lumen of the buccal capsule and in the space between the stylet and the guiding sheath.
Journal ArticleDOI
Location of tobacco rattle virus in the nematode vector, Trichodorus pachydermus Seinhorst.
C. E. Taylor,W. M. Robertson +1 more
TL;DR: Results merely show that infective sap is ingested and are not necessarily indicative of any specific relationship between virus and vector as TRV has similarly been detected in Xiphinema and Pratylenchus nematodes which do not transmit the virus.
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The location of raspberry ringspot and tomato black ring viruses in the nematode vector, Longidorus elongatus (de Man)
C. E. Taylor,W. M. Robertson +1 more