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Related Experiment Video

Updated: Nov 19, 2025

Tick Microbiome Characterization by Next-Generation 16S rRNA Amplicon Sequencing

Tick Microbiome Characterization by Next-Generation 16S rRNA Amplicon Sequencing

Published on: August 25, 2018

Interspecific interactions within a vector-borne complex are influenced by a co-occurring pathosystem.

Regina K Cruzado-Gutiérrez^1,2, Rohollah Sadeghi², Sean M Prager³

¹Department of Entomology, Plant Pathology and Nematology, University of Idaho, Aberdeen R&E Center, Aberdeen, ID, 83210, USA.

Scientific Reports

|January 27, 2021

Summary

Potato virus Y (PVY) affects insect behavior, with infected plants deterring vectors of zebra chip disease (Lso). This influences disease spread in solanaceous crops.

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Area of Science:

Plant pathology
Entomology
Agricultural science

Background:

Potato virus Y (PVY) and zebra chip (ZC) disease pose significant threats to solanaceous crops in North America.
PVY spreads via aphids and propagation, while ZC is linked to "Candidatus Liberibacter solanacearum" (Lso) transmitted by the tomato/potato psyllid, Bactericera cockerelli.

Purpose of the Study:

To investigate how PVY infection influences the host preference, oviposition, and egg hatch of Lso-carrying and Lso-free psyllids in tomato plants.
To determine the impact of PVY on Lso transmission, psyllid Lso titer, and tomato plant chemistry.

Main Methods:

Comparative study of psyllid behavior (host preference, oviposition) on healthy versus PVY-infected tomato plants.
Analysis of Lso transmission rates, psyllid Lso titers, egg hatch rates, and plant chemical profiles (amino acids, sugars, phytohormones).

Main Results:

Lso-carrying psyllids preferred healthy tomato plants, while Lso-free psyllids favored PVY-infected plants.
Oviposition by Lso-carrying psyllids was reduced on PVY-infected plants, but Lso transmission, titer, and egg hatch were unaffected by PVY.
Salicylic acid induction in PVY-infected plants may explain reduced host attractiveness to Lso-carrying psyllids.

Conclusions:

Pre-existing PVY infection can decrease oviposition by Lso-carrying psyllids.
The tendency of Lso-carrying psyllids to select healthy hosts could facilitate Lso spread to uninfected plants in mixed-infection fields.