alexa Fate of a genetically modified bacterium in foregut of glassy-winged sharpshooter (Hemiptera: Cicadellidae).
Biomedical Sciences

Biomedical Sciences

Journal of Biomedical Systems & Emerging Technologies

Author(s): Ramirez JL, Perring TM, Miller TA

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Abstract Symbiotic control is a new strategy being investigated to prevent the spread of insect-transmitted pathogens by reducing vector competence. We are developing this strategy to reduce the spread of Xylella fastidiosa by Homalodisca vitripennis (Germar) [formerly Homalodisca coagulata (Say)] (Hemiptera: Cicadellidae), the glassy-winged sharpshooter. In this study, the fate of a transformed symbiotic bacterium, Alcaligenes xylosoxidans variety denitriicans (S1Axd), in the foregut of glassy-winged sharpshooter when fed on citrus (Citrus spp.) and grape (Vitris spp.) was assessed. TaqMan-based quantitative real-time polymerase chain reaction (PCR) was used to detect and quantify bacterial cells remaining in the foregut at 0, 2, 4, 9, and 12 d after acquisition. S1Axd titer dropped rapidly by 2 d after acquisition, but in spite of this, at end of the 12-d experimental period, 45 and 38\% of the glassy-winged sharpshooters retained the transformed bacteria, when fed on grape and citrus, respectively.
This article was published in J Econ Entomol and referenced in Journal of Biomedical Systems & Emerging Technologies

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