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Identifier

000418844

Title

Βιοτεχνολογικοί τρόποι καταπολέμησης του εντόμου εχθρού καλλιεργειών Nezara viridula

Alternative Title

Biotechnological ways to manage the pest Nezara viridula

Author

Μπουλασίκη, Παρασκευή Ι.

Thesis advisor

Βόντας, Ιωάννης

Reviewer

Καλαντίδης, Κρίτων
Σαρρής, Παναγιώτης

Abstract

Nezara viridula is a polyphagous insect of significant economic importance to global agricultural and horticultural crops. Crop losses attributed to stink bugs in cotton were estimated at $60 million in 2014 across the Cotton Belt. Stink bug injury can reduce yield through aborted young bolls, stained lint, and reduced lint yield. N. viridula bugs have also been shown to be a vector of bacterial pathogens affecting boll development. There is a growing concern that due to its high vagility, polyphagous feeding habits and its ability to move to alternative hosts, combined with global warming and changes in agricultural practices, N. viridula, as well as other stink bugs, will become even more important pests worldwide. In this study we examined target site mutations in two strains of N. viridula that are able to confer resistance. We checked for mutations of the voltage-gated sodium channel, the acetylcholinesterase (AchE) gene, the acetyl-coenzyme A carboxylases (ACCs) and the ryanodine receptor (RyR). Mutations of these genes are associated with resistance to ketoenols, pyrethroid, organophosphate and diamide insecticides. In parallel we propose a new way of managing this pest, through the identification of effectors in the watery saliva of the insects intending to unravel the plant pathways that are deteriously being affected and create plants that will not be affected by this insect.

Language

English

Subject

Effectors

Insecticide resistance

Αλληλεπιδράσεις φυτών-εντόμων

Ανθεκτικότητα σε εντομοκτόνα

Issue date

2018-11-23

Collection

School/Department--School of Sciences and Engineering--Department of Biology--Post-graduate theses

Type of Work--Post-graduate theses