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Department of Entomology

Department of Entomology
123 W. Waters Hall
1603 Old Claflin Place
Kansas State University
Manhattan KS 66506-4004

785-532-6154
785-532-6232 fax
entomology@ksu.edu

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Gao, Jian-Rong

No Image Ph.D. 2001 jd355@cornell.edu

Bio Brief

Biochemical and molecular analyses of acetylcholinesterase from organophosphate-susceptible and resistant clones of the greenbug, Schizaphisgraminum (Homoptera: Aphididae)

Publications

Li, H., B. Oppert, R. A. Higgins, F. Huang, L. L. Buschman, J-R Gao, and K. Y. Zhu. 2005. Characterization of cDNAs encoding three trypsin-like proteinases and mRNA quantitative analysis in Bt-resistant and -susceptible strains of Ostrinia nubilalis. Insect Biochemistry and Molecular Biology 35: 847-860.


Gao, J.-R., S. Kambhampati, and K. Y. Zhu. 2002. Molecular cloning and characterization of a greenbug (Schizaphis graminum) cDNA encoding acetylcholinesterase possibly evolved from a duplicate gene lineage. Insect Biochemistry and Molecular Biology 32: 765-775.


Gao, J.-R. and K. Y. Zhu. 2002. Increased expression of an acetylcholinesterase gene may confer organophosphate resistance in the greenbug, Schizaphis graminum (Homoptera: Aphididae). Pesticide Biochemistry and Physiology 73: 164-173.


Gao, J.-R. and K. Y. Zhu. 2001. An acetylcholinesterase purified from the greenbug (Schizaphis graminum) with some unique enzymological and pharmacological characteristics. Insect Biochemistry and Molecular Biology 31: 1095-1104.


Gao, J.-R. and K. Y. Zhu. 2000. Comparative toxicity of selected organophosphate insecticides against resistant and susceptible clones of the greenbug, Schizaphis graminum (Homoptera: Aphididae). Journal of Agricultural and Food Chemistry 48: 4717-4722.


Zhu, K. Y., J.-R. Gao, and S. R. Starkey. 2000. Organophosphate resistance mediated by alterations of acetylcholinesterase in a resistant clone of the greenbug, Schizaphis graminum (Homoptera: Aphididae). Pesticide Biochemistry and Physiology 68: 138-147.


Zhu, K. Y. and J.-R. Gao. 1999. Increased activity associated with reduced sensitivity of acetylcholinesterase in organophosphate-resistant greenbug, Schizaphis graminum (Homoptera: Aphididae). Pesticide Science 55: 11-17.


Gao, J.R., J.V. Rao, G.E. Wilde, and K.Y. Zhu. 1998. Purification and kinetic analysis of acetylcholinesterase from western corn rootworm, Diabrotica virgifera virgifera (Coleoptera : Chrysomelidae). Archives of Insect Biochemistry and Physiology 39: 119-125.


Zhu, K. Y. and J.-R. Gao. 1998. Kinetics and variability of esterases in organophosphate-susceptible and resistant greenbugs, Schizaphis graminum (Homoptera: Aphididae). Pesticide Biochemistry and Physiology 62: 135-145.