Expression of Pseudomonas phosphotriesterase activity in the fall armyworm confers resistance to insecticides.
The gene encoding for the phosphotriesterase (opd) from Pseudomonas diminuta has been subcloned into a baculovirus expression system. Functional enzyme is produced when the recombinant baculovirus is used to infect either cultured Spodoptera frugiperda sf9 cells or the larval stage of the fall armyworm. The LD50 for paraoxon toxicity was found to increase 280-fold in the larvae after infection with the recombinant baculovirus and expression of the functional phosphotriesterase.
Dumas
D P
DP
Department of Chemistry, Texas A & M University, College Station 77843.
Wild
J R
JR
Raushel
F M
FM
D000818:Animals; D043303:Aryldialkylphosphatase; D005822:Genetic Vectors; D007304:Insect Viruses / Q000235:genetics; D007305:Insecticide Resistance; D007915:Lepidoptera / Q000187:drug effects* / Q000235:genetics; D010261:Paraoxon / Q000633:toxicity*; D010744:Phosphoric Monoester Hydrolases / Q000235:genetics / Q000378:metabolism*; D011549:Pseudomonas / Q000201:enzymology* / Q000235:genetics; D011994:Recombinant Proteins
D011994:Recombinant Proteins; D010744:Phosphoric Monoester Hydrolases; D043303:Aryldialkylphosphatase; D010261:Paraoxon