The influence of virus-induced changes in plants on aphid vectors: insights from luteovirus pathosystems

摘要: Plant virus infection can alter the suitability of host plants for their aphid vectors. Most reports indicate that virus-infected are superior hosts vectors compared to virus-free with respect vector growth rates, fecundity and longevity. Some respond preferentially ones, while others avoid infected inferior hosts. Thus, it appears exploit changes in plant quality associated viral infection. Enhanced performance preference might also be advantageous viruses by promoting spread possibly enhancing fitness. Our research has focused on two most important luteoviruses infect wheat (Barley yellow dwarf virus), or potato (Potato leafroll respective vectors, bird-cherry oat aphid, Rhopalosiphum padi, green peach Myzus persicae. The work demonstrated enhances life history Additionally, shown alters concentration relative composition volatile organic compounds plants, apterae each species settle such responses mediated compounds. findings heterogeneously as a result different parts change attractiveness during dynamic. Such dynamic could enhance reduce probability acquisition individual aphids searching among plants. Finally, our indicates non-viruliferous aphids, viruliferous ones less not responsive virus-induced volatiles. Changes responsiveness after acquire impact epidemiology influencing spread. potential implications these ecology discussed.