Article (Scientific journals)
Drought-stress and plant resistance affect herbivore performance and proteome: the case of the green peach aphid Myzus persicae (Hemiptera: Aphididae)
Verdugo, Jaime; Sauge, Marie-Helene; Laccroze, Jean-Philippe et al.
2015In Physiological Entomology, 40, p. 265-276
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Keywords :
Aphid-plant interaction; biotic and abiotic factors; genetic resistance
Abstract :
[en] Abstract. Little is known about the simultaneous effects of drought stress and plant resistance on herbivorous insects. By subjecting the green peach aphid Myzus persicae Sulzer to well-watered and drought-stressed plants of both susceptible and resistant peach (Prunus persica), the effects of both stressors on aphid performance and proteomics are tested. Overall, the influence of thewater treatment on aphid performance is less pronounced than the effect of host plant genetic resistance. On the susceptible cultivar, aphid survival, host acceptance and ability to colonize the plant do not depend on water treatment. On the resistant cultivar, aphid survival and ability to colonize are higher on drought-stressed than on well-watered plants. A study examining the pattern of protein expression aiming to explain the variation in aphid performance finds higher protein expression in aphids on the drought-stressed susceptible cultivars compared with the well-watered ones. In the susceptible cultivar, the regulated proteins are related to energy metabolism and exoskeleton functionality, whereas, in the resistant cultivar, the proteins are involved with the cytoskeleton. Comparison of the protein expression ratios for resistant versus susceptible plants reveals that four proteins are down-regulated in well-watered plants and 15 proteins are down-regulated in drought-stressed plants. Drought stress applied to the susceptible cultivar induces the regulation of proteins in M. persicae that enable physiological adaptation to maintain an almost unaltered aphid performance. By contrast, for aphids on the resistant cultivar subjected to drought stress, the down-regulation of proteins responds to an induced host susceptibility effect.
Disciplines :
Entomology & pest control
Author, co-author :
Verdugo, Jaime;  Universidad de Talca > Instituto de Ciencias Biologicas > Laboratorio Interacciones Insecto-Planta
Sauge, Marie-Helene;  Institut Scientifique de Recherche Agronomique - INRA > Unités de Plantes et Systèmes de Culture Horticoles
Laccroze, Jean-Philippe;  Institut Scientifique de Recherche Agronomique - INRA > Unités de Plantes et Systèmes de Culture Horticoles
Francis, Frédéric  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Entomologie fonctionnelle et évolutive
Ramirez, Claudio;  Universidad de Talca, Talca,Chili > Instituto de Ciencas Biologicas > Millennium Nucleus Center in Molecular Ecology and Evolutionary Applications in the Agroecosystems
Language :
English
Title :
Drought-stress and plant resistance affect herbivore performance and proteome: the case of the green peach aphid Myzus persicae (Hemiptera: Aphididae)
Publication date :
2015
Journal title :
Physiological Entomology
ISSN :
0307-6962
eISSN :
1365-3032
Publisher :
Royal entomological Society, United Kingdom
Volume :
40
Pages :
265-276
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 15 December 2015

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