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Binding of individual Bacillus thuringiensis Cry proteins to the olive moth Prays oleae (Lepidoptera Yponomeutidae)


Reference:

Hernández-Rodríguez, C. S., Pérez-Guerrero, S., Aldebis, H. K., Vargas-Osuna, E. and Ferré, J., 2009. Binding of individual Bacillus thuringiensis Cry proteins to the olive moth Prays oleae (Lepidoptera Yponomeutidae). Journal of Invertebrate Pathology, 100 (2), pp. 131-133.

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Official URL:

http://dx.doi.org/10.1016/j.jip.2008.11.005

Abstract

The microlepidopteran Prays oleae is one of the main insect pests causing significant crop losses in the Mediterranean olive groves. Bacillus thuringiensis based insecticides are being successfully used to minimize the impact of the second and third generations of this pest. However, because of its very small size and difficulty of rearing, very few studies have been carried out to determine the potency and mode of action of B. thuringiensis Cry proteins in this insect. In this study, Cry1Ac, Cry1Ca, and Cry1Fa proteins were shown to be toxic to third instar larvae of P. oleae. Furthermore, binding assays with (125)I-Cry1Ac and brush border membrane vesicles from midguts of last-instar larvae showed specific binding sites for Cry1Ac that are shared, with low affinity, by Cry1Ca and Cry1Fa.

Details

Item Type Articles
CreatorsHernández-Rodríguez, C. S., Pérez-Guerrero, S., Aldebis, H. K., Vargas-Osuna, E. and Ferré, J.
DOI10.1016/j.jip.2008.11.005
DepartmentsFaculty of Science > Biology & Biochemistry
RefereedYes
StatusPublished
ID Code31943

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