Article (Scientific journals)
Does the Infectious Status of Aphids Influence Their Preference Towards Healthy, Virus-Infected and Endophytically Colonized Plants?
Fingu Mabola, Junior; Martin, Clément; Bawin, Thomas et al.
2020In Insects, 11 (7), p. 435
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Keywords :
biological control; insect–plant–microbe interactions; multitrophic interactions; aphid-borne virus pathosystem; host-finding behavior; endophytic fungus; plant volatile organic compound
Abstract :
[en] Aphids (Hemiptera: Aphididae) cause significant damage and transmit viruses to various crop plants. We aimed to evaluate how the infectious status of aphids influences their interaction with potential hosts. Two aphid (Myzus persicae and Rhopalosiphum padi) and plant (Nicotiana tabacum and Triticum aestivum) species were used. The preferences of aphids towards healthy, virus-infected (Potato Leafroll Virus (PLRV) and Barley Yellow Dwarfvirus (BYDV)), and endophytic entomopathogenic fungi (EEPF)-inoculated (Beauveria bassiana and Metarhizium acridum) plants were investigated in dual-choice tests. The headspace volatiles of the different plant modalities were also sampled and analyzed. Viruliferous and non-viruliferous aphids were more attracted to EEPF-inoculated plants compared to uninoculated plants. However, viruliferous aphids were more attracted to EEPF-inoculated plants compared to virus-infected plants, while non-viruliferous insects exhibited no preference. Fungal-inoculated plants released higher amounts of aldehydes (i.e., heptanal, octanal, nonanal and decanal) compared to other plants, which might explain why viruliferous and non-viruliferous aphids were more abundant in EEPF-inoculated plants. Our study provides an interesting research perspective on how EEPF are involved in behavior of virus vector, depending on the infectious status of the latter.
Disciplines :
Entomology & pest control
Author, co-author :
Fingu Mabola, Junior ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech
Martin, Clément  ;  Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs
Bawin, Thomas;  UiT The Arctic University of Norway > Department of Arctic and Marine Biology
Verheggen, François  ;  Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs
Francis, Frédéric  ;  Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs
Language :
English
Title :
Does the Infectious Status of Aphids Influence Their Preference Towards Healthy, Virus-Infected and Endophytically Colonized Plants?
Publication date :
July 2020
Journal title :
Insects
eISSN :
2075-4450
Publisher :
Multidisciplinary Digital Publishing Institute (MDPI), Switzerland
Volume :
11
Issue :
7
Pages :
435
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 18 February 2021

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