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ARS Home » Pacific West Area » Logan, Utah » Poisonous Plant Research » People & Locations » Edward Knoppel
Edward L Knoppel
Poisonous Plant Research
Biological Science Lab Technician

Phone: (435) 797-4019
Fax: (435) 797-4008

(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Hepatotoxic plants that poison livestock Reprint Icon - (Peer Reviewed Journal)
Clayton, M.J., Davis, T.Z., Knoppel, E.L., Stegelmeier, B.L. 2020. Hepatotoxic plants that poison livestock. Veterinary Clinics of North America. 36:715-723. https://doi.org/10.1016/j.cvfa.2020.08.003.
Wild parsnip (Pastinaca sativa)-induced photosensitization Reprint Icon - (Peer Reviewed Journal)
Stegelmeier, B.L., Colegate, S.M., Knoppel, E.L., Rood, K.A., Collett, M.G. 2019. Wild parsnip (Pastinaca sativa)-induced photosensitization. Toxicon. 167:60-66. https://doi.org/10.1016/j.toxicon.2019.06.007.
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) Reprint Icon - (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 Reprint Icon - (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. - (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