한국응용곤충학회지 (Korean journal of applied entomology)
- 제35권1호
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- Pages.74-79
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- 1996
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- 1225-0171(pISSN)
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- 2287-545X(eISSN)
배추좀나방(Pulltella xylostella L.)의 deltamethrin 저항성 기작에 관한 에스테라제의 역할
Role of general esterases in deltamethrin resistance mechanism of diamondback moth, Plutrlla xylostella L.
초록
배추좀나방의 deltamethrin에 대한 약제 저항성 기작을 알기 위하여 에스테라제의 활성과 조성을 분석하였다. 0.1
General esterases were analysed quantitatively and qualitatively to see their role in deltamethrin resistance mechanisms of the diamondback moth, Plutella xylostella L. Selection with 0.1 g of deltamethrin in each generation induced the moth to decrease susceptibility to the insecticide and to increase esterase activities of the fourth instar larvae. Both characters were highly correlated so that the correlation coefficient (r) between LDSo @g) of deltamethrin and esterase activities (~M/min/pg) was 0.9918 (P=0.0082). Nondenaturing PAGE (6%) separated 17 esterase bands from the whole body extracts of the fourth instar larvae. Deltamethrin-selected populations had fewer esterase bands than had the unselected. Four esterase bands (E3, E4, Ell, and E13) were, however, specific to deltamethrin-selected populations.
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