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Sci Rep


Title:Antagonist effects of the leek Allium porrum as a companion plant on aphid host plant colonization
Author(s):Baudry X; Doury G; Couty A; Fourdrain Y; van Havermaet R; Lateur M; Ameline A;
Address:"UMR CNRS 7058 EDYSAN (Ecologie et Dynamique des Systemes Anthropises), Universite de Picardie Jules Verne, 33 rue St Leu, 80039, Amiens Cedex, France. PCG (Provinciaal Proefcentrum Voor de Groenteteelt Oost-Vlaanderen), Karreweg 6, 9770, Kruishoutem, Belgium. CRA-W (Centre Wallon de Recherches Agronomiques), Unite Biodiversite et Amelioration des Plantes, Batiment Emile Marchal, 4 rue de Liroux, 5030, Gembloux, Belgium. UMR CNRS 7058 EDYSAN (Ecologie et Dynamique des Systemes Anthropises), Universite de Picardie Jules Verne, 33 rue St Leu, 80039, Amiens Cedex, France. arnaud.ameline@u-picardie.fr"
Journal Title:Sci Rep
Year:2021
Volume:20210217
Issue:1
Page Number:4032 -
DOI: 10.1038/s41598-021-83580-8
ISSN/ISBN:2045-2322 (Electronic) 2045-2322 (Linking)
Abstract:"Combining a non-host plant (companion plant or CP) with a target cultivated plant is considered as a promising strategy to reduce pest pressure. Among the companion plants (CP) commonly used in integrated systems, those belonging to the Amaryllidaceae family (chives, garlic, onion, leek) exhibit characteristics related to certain volatile organic compounds (VOCs) with promising repellent potentialities. The aim of this work was to investigate the potential disruption of sweet pepper (host plant) colonization by the green peach aphid (Myzus persicae) when exposed to leek (Allium porrum) as a CP. Retention/dispersion, EPG and clip-cage/Petri dish laboratory experiments were thus performed to study the effect of leek VOCs on aphid settlement/migration, feeding behavior and life history traits parameters, respectively. This work revealed that leek as a CP had a negative effect on aphid feeding behavior, by disturbing the balance between phloem and xylem sap ingestion, but had no influence concerning aphid settlement. Surprisingly, leek as a CP triggered some unexpected probiotic effects on certain life history traits such as aphid survival, biomass, and fecundity, suggesting a possible hormetic effect of leek VOCs on aphid physiology. The possibility of experience-induced preference of aphids for leek VOCs was also discussed"
Keywords:"Agriculture/methods Animals Aphids/metabolism/*physiology Capsicum/*growth & development/metabolism Gene Expression Regulation, Plant/genetics Genes, Plant/genetics Insect Repellents/metabolism Onions/*metabolism Plant Leaves;"
Notes:"MedlineBaudry, Xavier Doury, Geraldine Couty, Aude Fourdrain, Yvelise van Havermaet, Robin Lateur, Marc Ameline, Arnaud eng Research Support, Non-U.S. Gov't England 2021/02/19 Sci Rep. 2021 Feb 17; 11(1):4032. doi: 10.1038/s41598-021-83580-8"

 
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