Pesticide Resistance Mechanisms

Le Goff, G., Boundy, S., Daborn, P. J., Yen, J. L., Sofer, L., Lind, R., Sabourault, C., Madi. Ravazzi, L., ffrench-Constant, R. H., et al. (2003). Micro soldiers analysis of P450 mediated insecticide electron tube in Drosophila. Insect Biochemistry and Molecular Biology, 33(7), 701708. Insecticide justification has been associated with the rule of some(prenominal) P450 genes by using both demesne and laboratory distract D. melanogaster and D. simulans resistant Drosophila sifts. In the laboratory, the authors were able to co require for the over transcription of the gene Cyp12d1 in a bank line that had already over transcribed the gene Cyp6g1. They also selected a strain moreover over expressing the Cyp6a8 gene. Selection of these different genes was do by genetic mapping of the associated pesticide resistor, which mapped to locations on chromosome II. However, it was found that the unsusceptibility in both D. melanogaster and D. simulans is associated primaril y with the over transcription of Cyp6g1. Cyp12d1 and Cyp6a8 could unless confer resistant to a few of the pesticides used, imidacloprid and malathion, while Cyp6g1 showed fortress to all of the pesticides that was used on the gene (imidacloprid, malathion, acetameprid and nitenpyram).

The authors hypothesis of Cyp6g1 institution more selected due to its ability to metabolise a considerablelyr host of pesticides was correct as seen by the same gene humankind selected for in both D. melanogaster and D. simulans. The authors showed that different genes can be selected for resistance in the laboratory by using a junction insecticide, while only one gen! e is selected for in field populations using multiple insecticides. This led them to conclude that genes conferring a wide range of cross resistance, such as Cyp6g1, can be selected for by a wider array of compounds, increasing its selection as a resistance gene. Feyereisen, R. (1995). Molecular biology of insecticide resistance. Toxicology Letters, 82/83, 8390. The continued use of pesticides...If you want to get a full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay