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Tomás Magalhães 1,2,3,4*, Amílcar Duarte 1,4, José Alberto Pereira 3,5, Natália Marques 2,4 (1:MED, UAlg Faro, Portugal 2:CEOT, UAlg Faro, Portugal 3:CIMO, IPB, Bragança, Portugal 4:Universidade do Algarve (UAlg), Faro, Portugal 5:Instituto Politécnico de Bragança (IPB), Bragança, Portugal)
The African citrus psyllid (Trioza erytreae) is an insect that transmits a highly aggressive bacterial disease to citrus plants, the Huanglongbing disease (HLB). The disease has no viable cure. The only way to manage it is by controlling the insect that transmits the bacteria. Understanding this plant-insect interaction dynamics is of high importance for citrus production. The present study intended to better understand this interaction on a molecular level. Two comparative proteomic analysis were performed. One comparison between plants infested with T. erytreae and the respective control plants, both in lemon (C. ×limon) and orange (C. ×sinensis). The other comparison was between insects that developed on lemon plants versus insects that developed on orange plants. These comparisons were done using a nanoLC-MS/MS technique. The subsequent data analysis was preformed using the PERSEUS software, and functional analysis was based on the KEGG pathway enrichment. The results of these comparative proteomic approaches may lead to a better understanding of the T. erytreae-citrus interaction and provide essential knowledge for the future management of T. erytreae in citrus orchards.