Page Banner

United States Department of Agriculture

Agricultural Research Service

Edward L Knoppel
Poisonous Plant Research
Biological Science Lab Technician
Ed.Knoppel@ars.usda.gov
Phone: (435) 752-2941
Fax: (435) 753-5681
1150 EAST 1400 NORTH
POISONOUS PLANT RESEARCH LAB.
LOGAN, UT, 84341


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
The comparative toxicity of a reduced, crude comfrey (Symphytum officinale) alkaloid extract and the pure, comfrey-derived pyrrolizidine alkaloids, lycopsamine and intermedine in chicks (Gallus gallus domesticus) - (Peer Reviewed Journal)
Brown, A.W., Stegelmeier, B.L., Colegate, S.M., Gardner, D.R., Panter, K.E., Knoppel, E.L., Hall, J.O. 2016. The comparative toxicity of a reduced, crude comfrey (Symphytum officinale) alkaloid extract and the pure, comfrey-derived pyrrolizidine alkaloids, lycopsamine and intermedine in chicks (Gallus gallus domesticus). Journal of Applied Toxicology. 36:716-725.
Wild parsnip (Pastinaca sativa)-induced photosensitization in goats and horses - (Proceedings)
Stegelmeier, B.L., Colegate, S.M., Knoppel, E.L., Lemos, D., Rood, K.A., Collett, M.G. 2015. Wild parsnip (Pastinaca sativa)-induced photosensitization in goats and horses. International Symposium on Poisonous Plants. 9:48-53.
Carcinogenic effects of riddelliine on P53 knockout mice - (Proceedings)
Brown, A.W., Stegelmeier, B.L., Colegate, S.M., Panter, K.E., Knoppel, E.L., Field, R.A., Hall, J.O. 2015. Carcinogenic effects of riddelliine on P53 knockout mice. International Symposium on Poisonous Plants. 9:276-280.
In vitro cytotoxicity of various dehydropyrrolizidine ester alkaloids - (Proceedings)
Field, R.A., Stegelmeier, B.L., Colegate, S.M., Brown, A., Mccollum, I.J., Knoppel, E.L. 2015. In vitro cytotoxicity of various dehydropyrrolizidine ester alkaloids. International Symposium on Poisonous Plants. 9:281-286.
Heterozygous P53 knockout mouse model for dehydropyrrolizidine alkaloid-induced carcinogenesis - (Peer Reviewed Journal)
Brown, A.W., Stegelmeier, B.L., Colegate, S.M., Panter, K.E., Knoppel, E.L., Hall, J.O. 2015. Heterozygous P53 knockout mouse model for dehydropyrrolizidine alkaloid-induced carcinogenesis. Journal of Applied Toxicology. 35(12):1557-1563.
Studies on the teratogenicity of anabasine in a rat model Reprint Icon - (Peer Reviewed Journal)
Welch, K.D., Lee, S.T., Panter, K.E., Gardner, D.R., Knoppel, E.L., Green, B.T., Hammond, C.K., Hammond, Z.J., Pfister, J.A. 2014. Studies on the teratogenicity of anabasine in a rat model. Toxicon. 87:32-37.
Effects of Larkspur (Delphinium barbeyi) on Heart Rate and Electrically Evoked Electromyographic Response of the External Anal Sphincter in Cattle. Reprint Icon - (Peer Reviewed Journal)
Green, B.T., Pfister, J.A., Cook, D., Welch, K.D., Stegelmeier, B.L., Lee, S.T., Gardner, D.R., Knoppel, E.L., Panter, K.E. 2009. Effects of Larkspur (Delphinium barbeyi) on Heart Rate and Electrically Evoked Electromyographic Response of the External Anal Sphincter in Cattle. American Journal of Veterinary Research. 70(4):539-546
Last Modified: 8/25/2016
Footer Content Back to Top of Page