Article (Scientific journals)
Effects of host plants reared under elevated CO2 concentrations on the foraging behavior of different stages of corn leaf aphids rhopalosiphum maidis
Chen, Yu; Martin, Clément; Fingu Mabola, Junior Corneille et al.
2019In Insects
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Keywords :
climate change; corn leaf aphid; foraging behavior; volatile organic compounds (VOCs)
Abstract :
[en] Climate change is a major environmental concern and is directly related to the increasing concentrations of greenhouse gases. The increase in concentrations of atmospheric carbon dioxide (CO2), not only a ects plant growth and development, but also a ects the emission of plant organic volatile compounds (VOCs). Changes in the plant odor profile may a ect the plant-insect interactions, especially the behavior of herbivorous insects. In this study, we compared the foraging behavior of corn leaf aphid (Rhopalosiphum maidis) on barley (Hordeum vulgare L.) seedlings grown under contrasted CO2 concentrations. During the dual choice bioassays, the winged and wingless aphids were more attracted by the VOCs of barley seedlings cultivated under ambient CO2 concentrations (aCO2; 450 ppm) than barley seedlings cultivated under elevated CO2 concentrations (eCO2; 800 ppm), nymphs were not attracted by the VOCs of eCO2 barley seedlings. Then, volatile compositions from 14-d-old aCO2 and eCO2 barley seedlings were investigated by GC-MS. While 16 VOCs were identified from aCO2 barley seedlings, only 9 VOCs were found from eCO2 barley seedlings. At last, we discussed the potential role of these chemicals observed during choice bioassays. Our findings lay foundation for functional response of corn leaf aphid under climate change through host plant modifications.
Disciplines :
Agriculture & agronomy
Author, co-author :
Chen, Yu ;  Université de Liège - ULiège > Stem Cells-Medical Chemistry
Martin, Clément  ;  Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs
Fingu Mabola, Junior Corneille ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech
Verheggen, François  ;  Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs
Wang, Zhenying
He, KangLai
Francis, Frédéric  ;  Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs
Language :
English
Title :
Effects of host plants reared under elevated CO2 concentrations on the foraging behavior of different stages of corn leaf aphids rhopalosiphum maidis
Publication date :
2019
Journal title :
Insects
eISSN :
2075-4450
Publisher :
Multidisciplinary Digital Publishing Institute (MDPI), Switzerland
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 14 December 2019

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