| Autor: |
Lüthi, C., Álvarez‐Alfageme, F., Li, Y., Naranjo, S. E., Higgins, T. J. V., Romeis, J. |
| Předmět: |
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| Zdroj: |
Journal of Applied Entomology; Apr2015, Vol. 139 Issue 3, p192-200, 9p |
| Abstrakt: |
True bugs (Hemiptera) are an important pest complex not controlled by Bt-transgenic crops. An alternative source of resistance includes inhibitors of digestive enzymes, such as protease or amylase inhibitors. α AI-1, an α-amylase inhibitor from the common bean, inhibits gut-associated α-amylases of bruchid pests of grain legumes. Here we quantify the in vitro activity of α-amylases of 12 hemipteran species from different taxonomic and functional groups and the in vitro inhibition of those α-amylases by α AI-1. α-Amylase activity was detected in all species tested. However, susceptibility to α AI-1 varied among the different groups. α-Amylases of species in the Lygaeidae, Miridae and Nabidae were highly susceptible, whereas those in the Auchenorrhyncha (Cicadellidae, Membracidae) had a moderate susceptibility, and those in the Pentatomidae seemed to be tolerant to α AI-1. The species with α AI-1 susceptible α-amylases represented families which include both important pest species but also predatory species. These findings suggest that α AI-1-expressing crops have potential to control true bugs in vivo. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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