Comparative Analysis of Volatiles Emitted from Tomato and Pepper Plants in Response to Infection by Two Whitefly-Transmitted Persistent Viruses

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  • Saptarshi Ghosh
  • Shoshana Didi-Cohen
  • Alon Cna’ani
  • Svetlana Kontsedalov
  • Galina Lebedev
  • Vered Tzin
  • Murad Ghanim

The whitefly Bemisia tabaci is one of the most important agricultural pests due to its extreme invasiveness, insecticide resistance, and ability to transmit hundreds of plant viruses. Among these, Begomoviruses and recombinant whitefly-borne Poleroviruses are transmitted persistently. Several studies have shown that upon infection, plant viruses manipulate plant-emitted volatile organic compounds (VOCs), which have important roles in communication with insects. In this study, we profiled and compared the VOCs emitted by tomato and pepper plant leaves after infection with the Tomato yellow leaf curl virus (TYLCV) (Bogomoviruses) and the newly discovered Pepper whitefly-borne vein yellows virus (PeWBVYV) (Poleroviruses), respectively. The results identified shared emitted VOCs but also uncovered unique VOC signatures for each virus and for whitefly infestation (i.e., without virus infection) independently. The results suggest that plants have general defense responses; however, they are also able to respond individually to infection with specific viruses or infestation with an insect pest. The results are important to enhance our understanding of virus- and insect vector-induced alteration in the emission of plant VOCs. These volatiles can eventually be used for the management of virus diseases/insect vectors by either monitoring or disrupting insect–plant interactions.

OriginalsprogEngelsk
Artikelnummer840
TidsskriftInsects
Vol/bind13
Udgave nummer9
Antal sider11
ISSN2075-4450
DOI
StatusUdgivet - 2022

Bibliografisk note

Funding Information:
This research was partially funded by the Chief Scientist of the Ministry of Agriculture in Israel grant no. 16-38-0029 to V.T, and 20-02-0102 to M.G., and ICA in Israel to V.T. A.C. was funded by the Jacob Blaustein Center for Scientific Cooperation (BCSC). V.T. is the chair of Sonnenfeldt-Goldman Career Development in Desert Research.

Publisher Copyright:
© 2022 by the authors.

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