COMPARISON OF BIOCHEMICAL AND BIOASSAY METHODS IN ASSESSING ORGANOPHOSPHATE RESISTANCE IN BLATTELLA GERMANICA

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ABOU ALHASANI MANDANA; SHAEGHI M.; LADONI H.

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Journal: JOURNAL OF SCHOOL OF PUBLIC HEALTH AND INSTITUTE OF PUBLIC HEALTH RESEARCH Year:2003 | Volume:1 | Issue:4 Page(s): 49-56

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Information Journal Paper

Title

COMPARISON OF BIOCHEMICAL AND BIOASSAY METHODS IN ASSESSING ORGANOPHOSPHATE RESISTANCE IN BLATTELLA GERMANICA

Author(s)

ABOU ALHASANI MANDANA | SHAEGHI M. | LADONI H. | Issue Writer Certificate

Keywords

COCKROACHQ3

BIOASSAYQ4

ANZYME ASSAYQ4

RESISTANCEQ4

Abstract

In this study we employed two methods for gauging the sensitivity of B. germanica strains to orgapophosphorus insecticides: an in-vivo BIOASSAY that used linear regression analysis (with mortality on a probit scale and logarithm of concentration) and an in-vitro enzyme assay. In the BIOASSAY method, B. germanica nymphs of stage 1 (2-3 days old) were exposed to patches of paper impregnated with 2% diazinon and propoxur. Compared to the sensitive (reference) strains, all but one of the tested strains showed RESISTANCE to diazinonzinon with RESISTANCE, ratios of 0.97 to 1.67. As for propoxur, all strains were sensitive with the exception of one subject that showed a RESISTANCE ratio of 1.6. The enzyme assays used common esterase and acetylcholine esterase methods. Comparison of in-vivo and in-vitro tests on stage 1 nymphs of B. germanica shows that both methods are. Reasonably sensitive in measuring RESISTANCE/sensitivity ratios. In addition, the BIOASSAY modality makes it possible to gauge the degree of insecticide sensitivity while the in-vitro method can only determine quantitative or qualitative changes in enzymes effected by carbamates and organophosphates. This study is the first of its kind, conducted by the school of Public Health in Tehran University of Medical Sciences.

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APA: Copy

ABOU ALHASANI, MANDANA, SHAEGHI, M., & LADONI, H.. (2003). COMPARISON OF BIOCHEMICAL AND BIOASSAY METHODS IN ASSESSING ORGANOPHOSPHATE RESISTANCE IN BLATTELLA GERMANICA. JOURNAL OF SCHOOL OF PUBLIC HEALTH AND INSTITUTE OF PUBLIC HEALTH RESEARCH, 1(4), 49-56. SID. https://sid.ir/paper/85106/en

Vancouver: Copy

ABOU ALHASANI MANDANA, SHAEGHI M., LADONI H.. COMPARISON OF BIOCHEMICAL AND BIOASSAY METHODS IN ASSESSING ORGANOPHOSPHATE RESISTANCE IN BLATTELLA GERMANICA. JOURNAL OF SCHOOL OF PUBLIC HEALTH AND INSTITUTE OF PUBLIC HEALTH RESEARCH[Internet]. 2003;1(4):49-56. Available from: https://sid.ir/paper/85106/en

IEEE: Copy

MANDANA ABOU ALHASANI, M. SHAEGHI, and H. LADONI, “COMPARISON OF BIOCHEMICAL AND BIOASSAY METHODS IN ASSESSING ORGANOPHOSPHATE RESISTANCE IN BLATTELLA GERMANICA,” JOURNAL OF SCHOOL OF PUBLIC HEALTH AND INSTITUTE OF PUBLIC HEALTH RESEARCH, vol. 1, no. 4, pp. 49–56, 2003, [Online]. Available: https://sid.ir/paper/85106/en

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