U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 Poisonous Plant Research: Logan, UT
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    Careers


        


                    IACUC SummariesSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Pacific West Area Logan, Utah Poisonous Plant Research People & Locations







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
                                                        

- (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
                                                        

- (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)
                                                        

- (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
                                                        

- (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


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov