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Ectoparasitic Nematode Vectors of Grapevine Viruses

Abstract : Nematodes of the genera Longidorus, Paralongidorus, and Xiphinema in the family Longidoridae can parasitize grapevine roots. These ectoparasitic soil-borne nematodes live in proximity to the rhizosphere and use a stylet to feed on root cells. During the feeding process, some nematodes are able to acquire and transmit nepoviruses, the causal agents of grapevine degeneration disease. The association between nematode vectors and the virus(es) they transmit is specific. This specificity is linked to the nature, site, and mechanism of virus retention. Here, we present and discuss major features of the interaction between nematodes and viruses with regard to the biology, ecology, and life cycle of the nematodes. In addition, we discuss how reverse genetics in combination with virus structural data have recently provided insights into the specificity of the transmission process through the identification of a cavity-like domain on the virion surface that could be recognized by a ligand within the nematode feeding apparatus. Finally, we offer some perspectives on future research to further advance nematode-virus interactions.
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Submitted on : Wednesday, September 2, 2020 - 11:09:44 AM
Last modification on : Monday, April 12, 2021 - 3:25:47 AM


  • HAL Id : hal-02928015, version 1
  • PRODINRA : 439837



Peggy Link, Aurelie Marmonier, Lorène Belval, K. Hleibieh, Christophe Ritzenthaler, et al.. Ectoparasitic Nematode Vectors of Grapevine Viruses. Grapevine Viruses: Molecular Biology, Diagnostics and Management, Baozhong Meng, Giovanni P. Martelli, Deborah A. Golino, Marc Fuchs, 2017. ⟨hal-02928015⟩



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