The effects of Gibberella zeae, Barley Yellow Dwarf Virus, and co-infection on Rhopalosiphum padi olfactory preference and performance

摘要: Insect-borne viruses promote several changes in plant phenotype, which can modify plant-vector interactions favor of virus survival and dissemination. Although co-infections commonly occur the field, little is known about their effects on with vector. The ecological between Barley Yellow Dwarf Virus (BYDV) its aphid vector, Rhopalosiphum padi, have been investigated extensively, but vector’s behavior more complex scenarios has yet to be examined. We assessed olfactory response performance R. padi wheat singly doubly infected by pathogenic fungus Giberella zeae BYDV. Non-viruliferous aphids preferred odors BYDV-infected over healthy wheat, as previously reported literature, they were still preferentially attracted during co-infection. However, around 35% non-viruliferous chose G. zeae-infected wheat. Viruliferous did not show any preference treatments. was a superior host than for whose population increased 25%. observed synergistic effect co-infected best aphids, promoted an elevation 42% growth. Our results indicate that co-infection might beneficial spread does interfere provides greater colony growth plants.