Article (Scientific journals)
Effect of banana bunchy top virus on the interaction between banana aphids and banana trees
Murhuba Safari, Ignace; Tougeron, Kevin; Bragard, Claude et al.
2021In Journal of Chemical Ecology
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Keywords :
Musa; Phytovirus; VOC; metabolites; biological control
Abstract :
[en] Banana plants are affected by various viral diseases, among which the most devastating is the "bunchy top", caused by the Banana bunchy top virus (BBTV) and transmitted by the aphid Pentalonia nigronervosa Coquerel. The effect of BBTV on attraction mechanisms of dessert and plantain banana plants on the vector remains far from elucidated. For that, attractiveness tests were carried out using a two columns olfactometer for apterous aphids, and a flight cage experiment for alate aphids. Volatile Organic Compounds (VOCs) emitted by either healthy or BBTV-infected banana plants were identified using a dynamic extraction system and gas-chromatography mass-spectrometry (GC–MS) analysis. Behavioral results revealed a stronger attraction of aphids towards infected banana plants (independently from the variety), and towards the plantain variety (independently from the infection status). GC–MS results revealed that infected banana plants produced VOCs of the same mixture as healthy banana plants but in much higher quantities. In addition, VOCs produced by dessert and plantain banana plants were different in nature, and plantains produced higher quantities than dessert banana trees. This work opens interesting opportunities for biological control of P. nigronervosa, for example by luring away the aphid from banana plants through manipulation of olfactory cues.
Disciplines :
Chemistry
Entomology & pest control
Author, co-author :
Murhuba Safari, Ignace
Tougeron, Kevin
Bragard, Claude
Fauconnier, Marie-Laure  ;  Université de Liège - ULiège > Département GxABT > Chimie des agro-biosystèmes
Bisimwa, Espoir
Wanlangululu Masamba, Jean
Hance, Thierry
Language :
English
Title :
Effect of banana bunchy top virus on the interaction between banana aphids and banana trees
Publication date :
August 2021
Journal title :
Journal of Chemical Ecology
ISSN :
0098-0331
eISSN :
1573-1561
Publisher :
Kluwer Academic/Plenum Publishers, New York, United States - New York
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 01 September 2021

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