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Mewis, I., Tokuhisa, J.G., Schultz, J.C., Appel, H.M., Ulrichs, C. and Gershenzon, J. (2006) Gene expression and glucosinolate accumulation in Arabidopsis thaliana in response to generalist and specialist herbivores of different feeding guilds and the role of defense signaling pathways. Phytochemistry, 67, 2450-2462. doi:10.1016/j.phytochem.2006.09.004

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• TITLE: Aphid-host plant interaction

  AUTHORS: Reham Z. Sadek, Shereen M. Elbanna, Fayez M. Semida

  KEYWORDS: Insect-Plant Interaction; Aphis fabae; Specialists; Generalists; Enzymes; Secondary Metabolites

  JOURNAL NAME: Open Journal of Animal Sciences, Vol.3 No.2A, June 21, 2013

  ABSTRACT: Black bean aphid, Aphis fabae (Homoptera; Aphididae) is a serious pest causing crop loss. Plant-aphid interaction is a dynamic system subjected to continual variation and changes. Host plants induce various biochemical and physical defense mechanisms due to aphid feeding. Aphids can overcome plant defenses by enzymatic adaptations and sequestering secondary metabolites produced by the plant within their bodies as a defense against their enemies. Many strategies were developed and evolved by aphids in order to overcome plant defense barriers which allowed them to feed, grow and reproduce on their host plants. This study aimed to aid in better understanding of the effect of altering host plant on specialist and generalist aphid fitness.The influence of plant defense on population development of Aphis fabae was also investigated. Analyses for insect enzymes were also demonstrated in addition to further biochemical studies on host plant defences. Generalists showed different ecological and enzymatic adaptations towards host plants than specialist Aphis fabae. The results were fully discussed in details.