Welch, K.D., Pfister, J.A., Lima, F.G., Green, B.T., Gardner, D.R. 2013. Effect of a nicotinic acetylcholine receptor agonists and antagonists on motor function in mice. Journal of Toxicology and Applied Pharmacology. 266(3): 366-74.
Cook, D., Grum, D.S., Gardner, D.R., Welch, K.D., Pfister, J.A. 2013. Influence of endophyte genotype on swainsonine concentrations in Oxytropis sericea. Toxicon. 61:105-11.
Grum, D.S., Cook, D., Gardner, D.R., Roper, J.M., Pfister, J.A., Ralphs, M.H. 2012. Influence of seed endophyte amounts on swainsonine concentrations in Astragalus and Oxytropis locoweeds. Journal of Agricultural and Food Chemistry. 66(33): 8083-9.
Gao, X., Cook, D., Ralphs, M., Yan, L., Gardner, D.R., Lee, S.T., Panter, K.E., Han, B., Zhao, M. 2012. Detection of swainsonine and isolation of the endophyte Undifilum from the major locoweeds in Inner Mongolia. Biochemical Systematics and Ecology. 45: 79-85.
Gao, X., Cook, D., Ralphs, M.H., Yan, L., Gardner, D.R., Lee, S.T., Panter, K.E., Han, B., Zhao, M. 2012. Detection of swainsonine and isolation of the endophyte Undifilum form the major locoweeds in Inner Mongolia. Biochemical Systematics and Ecology. 45: 79-85.
Welch, K.D., Gardner, D.R., Pfister, J.A., Panter, K.E., Zieglar, J., Hall, J. 2012. A comparison of the metabolism of the abortifacient compounds from Ponderosa Pine needles in conditioned versus naive cattle. Journal of Animal Science. Epub ahead of print.
Lee, S.T., Panter, K.E., Gardner, D.R., Green, B.T., Welch, K.D., Zhang, J., Change, C.T. 2012. Development of a monoclonal antibody-based ELISA for the hedgehog inhibitors cyclopamine and cyclopamine-KAAD. Journal of Pharmaceutical and Biomedical Analysis. 66: 282-6.
Bottger, J.A., Creamer, R., Gardner, D.R. 2012. Seasonal changes in Undifilum colonization and swainsonine content of locoweeds. Journal of Chemical Ecology. 38:486-95.
Welch, K.D., Panter, K.E., Gardner, D.R., Stegelmeier, B.L. 2012. The good and the bad of poisonous plants: An introduction to the USDA-ARS Poisonous Plant Research Laboratory. Journal of Medical Toxicology. 8(2): 153-9.
Cook, D., Shi, L., Gardner, D.R., Pfister, J.A., Grum, D.S., Welch, K.D., Ralphs, M.H. 2012. Influence of phenological stage on swainsonine concentrations and endophyte amounts in Oxytropis sericea. Journal of Chemical Ecology. 38(2): 195-203.
Welch, K.D., Green, B.T., Gardner, D.R., Cook, D., Pfister, J.A., Panter, K.E. 2012. The effect of 7,8-methylenedioxylycoctonine-type diterpenoid alkaloids on the toxicity of tall larkspur (Delphinium spp.) in cattle. Journal of Animal Science. 90(7): 2394-401.
Thacker, E.T., Gardner, D.R., Messmer, T.A., Guttery, M., Dahlgren, D.K. 2011. Using gas chromatography to determine winter diets of sage-grouse in Utah. Journal of Wildlife Management. 76(3):588-592.
Gardner, D.R., Riet-Correa, F. 2011. Analysis of the toxic amino acid indospicine by liquid chromatography-tandem mass spectrometry. International Journal of Poisonous Plant Research. 1(1):20-7.
Green, B.T., Welch, K.D., Cook, D., Gardner, D.R. 2011. Potentiation of the actions of acetylcholine, epibatidine, and nicotine by methyllycaconitine at fetal muscle-type nicotinic acetylcholine receptors. European Journal of Pharmacology. 662(1-3):15-21.
Green, B.T., Welch, K.D., Cook, D., Gardner, D.R. 2011. The effects of methyllycaconitine on the response of TE-671 cells to acetylcholine and epibatidine. FASEB Journal. 25: 798.5.
Panter, K.E., Welch, K.D., Gardner, D.R. 2011. Toxic plants: Effects on reproduction and fetal and embryonic development in livestock. In: Gupta, R.C., editor. Reproductive and Developmental Toxicology. San Diego, CA: Academic Press. p. 689-704.
Cook, D., Green, B.T., Welch, K.D., Gardner, D.R., Pfister, J.A., Panter, K.E. 2011. Comparison of the toxic effects of two duncecap larkspur (Delphinium occidentale) chemotypes in mice and cattle. American Journal of Veterinary Research. 72(5):706-14.
Ralphs, M.H., Cook, D., Gardner, D.R., Grum, D.S. 2011. Transmission of the locoweed endophyte to the next generation of plants. Fungal Ecology. 4(4):251-5.
Welch, K.D., Panter, K.E., Gardner, D.R., Stegelmeier, B.L., Green, B.T., Pfister, J.A., Cook, D. 2011. The acute toxicity of the Death camas (Zigadenus spp.) alkaloid zygacine in mice, including the effect of methyllycaconitine co-administration on zygacine toxicity. Journal of Animal Science. 89(5):1650-7.
Molyneux, R.J., Gardner, D.R., Colegate, S.M., Edgar, J.A. 2011. Pyrrolizidine alkaloid toxicity in livestock: A paradigm for human poisoning. Journal of Food Additives & Contaminants. Part A. 28(3): 293-307.
Panter, K.E., Gardner, D.R., Stegelmeier, B.L., Welch, K.D., Holstege, D. 2011. Water hemlock poisoning in cattle: Ingestion of immature Cicuta maculata seed as the probable cause. Toxicon. 57(1):157-61. DOI:10.1016/j.toxicon.2010.11.009
Lima, E.F., Riet-Correa, B., Riet-Correa, F., Medeiros, R.M.T., Gardner, D.R., Riet-Correa, G. 2011. Poisonous plants affecting the central nervous system of horses in Brazil. In: Riet-Correa, F., Pfister, J., Schild, A.L., Wierenga, T., editors. Poisoning by Plants, Mycotoxins, and Related Toxins. Cambridge, MA: CAB International. p. 290-4.
Lee, S.T., Davis, T.Z., Gardner, D.R., Colegate, S.M., Cook, D., Green, B.T., Meyerholtz, K.A., Wilson, C.R., Stegelmeier, B.L., Evans, T.J. 2010. Tremetone and structurally related compounds in white snakeroot (Ageratina altissima): A plant associated with trembles and milk sickness. Journal of Agricultural and Food Chemistry. 58(15):8560-65. DOI: 10.1021/jf1012456.
Gardner, D.R., Cook, D. 2011. A comparison of alternate sample preparation procedures for the analysis of swainsonine using LC-MS/MS. Phytochemical Analysis. 22(2):95-188.
Cook, D., Gardner, D.R., Pfister, J.A., Welch, K.D., Green, B.T., Lee, S.T. 2011. Distribution of Delphinium occidentale chemotypes and their potential toxicity. In: Riet-Correa, F., Pfister, J., Schild, A.L., Wierenga, T., editors. Poisoning by Plants, Mycotoxins, and Related Toxins. Cambridge, MA. CAB International. p. 606-11.
Green, B.T., Welch, K.D., Gardner, D.R., Stegelmeier, B.L., Pfister, J.A., Cook, D., Davis, T.Z. 2011. A toxicokinetic comparison of norditerpenoid alkaloids from Delphinium barbeyi and D. glaucescens in cattle. Journal of Applied Toxicology. 31(1):20-6. DOI 10.1002/jat.1563.
Lee, S.T., Mitchell, R., Gardner, D.R., Tokarnia, C.H., Riet-Correa, F. 2011. Measurement of steroidal saponins in Panicum and Brachiaria grasses in the USA and Brazil. In: Riet-Correa, F., Pfister, J., Schild, A.L., Wierenga, T., editors. Poisoning by Plants, Mycotoxins, and Related Toxins. Cambridge,MA. CAB International. 20:142-4.
Karam, F.S.C., Haraguchi, M., Gardner, D.R. 2011. Seasonal variation in pyrrolizidine alkaloid concentration and plant development in Senecio madagascariensis poir. (Asteraceae) in Brazil. In: Riet-Correa, F., Pfister, J., Schild, A.L., Wierenga, T., editors. Poisoning by Plants, Mycotoxins, and Related Toxins. Cambridge, MA: CAB International. p. 179-85.
Pfister, J.A., Gardner, D.R., Cheney, C.C., Panter, K.E., Hall, J.0. 2010. The Capability of Several Toxic Plants to Condition Taste Aversions in Sheep. Small Ruminant Research, 90(1):114-119. doi:10.1016/j.smallrumres.2010.02.009
Cook, D., Gardner, D.R., Ralphs, M.H., Pfister, J.A., Welch, K.D., Green, B.T. 2009. Swainsonine Concentrations and Endophyte Amounts of Undifilum oxytropis in Different Plant Parts of Oxytropis sericea. Journal of Chemical Ecology, Vol. 35(10):1272-1278. (www.springerlink.com) DOI 0.1007/s10886-009-9710-9
Gardner, D.R., Panter, K.E., Stegelmeier, B.L. 2010. Implication of Agathic Acid from Utah Juniper Bark as an Abortifacient Compound in Cattle. Journal of Applied Toxicology, 30:115-119, 2010. DOI 10:1002/jat.1476
Cook, D., Gardner, D.R., Welch, K.D., Roper, J.M., Ralphs, M.H., Green, B.T. 2009. Quantitative PCR Method to Measure the Fungal Endopyte in Locoweeds. Journal of Agricultural and Food Chemistry. 57:6050-6054
Cook, D., Gardner, D.R., Pfister, J.A., Welch, K.D., Green, B.T., Lee, S.T. 2009. The Biogeographical Distribution of Duncecap Larkspur (Delphinium occidentale) Chemotypes and Their Potential Toxicity. Journal of Chemical Ecology 35:6443-652
Lee, S.T., Davis, T.Z., Gardner, D.R., Stegelmeier, B.L., Evans, T.J. 2009. A Quantitative Method for the Measurement of Three Benzofuran Ketones in Rayless Goldenrod (Isocoma pluriflora) and White Snakeroot (Ageratine altissima) by HPLC. Journal of Agricultural and Food Chemistry. 57(12):5639-5642
Lee, S.T., Mitchell, R., Wang, Z., Heiss, C., Gardner, D.R., Azadi, P. 2009. Isolation, Characterization, and Quantification of Steroidal Saponins in Switchgrass (Panicum virgatum L.). Journal of Agricultural and Food Chemistry. 57(6):2599-2604. DOI: 10.1021/jf803907y
Welch, K.D., Green, B.T., Panter, K.E., Gardner, D.R., Pfister, J.A., Cook, D., Stegelmeier, B.L. 2009. Investigation of the Susceptibility of Various Strains of Mice to Methyllycaconitine Toxicosis. Journal of Animal Science, 87:1558-1564. doi:102527/jas.2008-1577
Pfister, J.A., Panter, K.E., Gardner, D.R., Cook, D., Welch, K.D. 2008. Effect of body condition on consumption of pine needles (Pinus ponderosa) by beef cows. Journal of Animal Science. 86:3608-16. DOI: 10.2527/jas.2008-1000.
Welch, K.D., Panter, K.E., Gardner, D.R., Green, B.T., Pfister, J.A., Cook, D., Stegelmeier, B.L. 2008. The effect of 7, 8-Methylenedioxylycoctonine -Type Diterpenoid Alkaloids on the Toxicity of Ethyllycaconitine in Mice. Journal of Animal Science, J. Anim. Sci. 86:2761-2770.
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
Lee, S.T., Panter, K.E., Pfister, J.A., Gardner, D.R., Welch, K.D. 2008. The Effect of Body Condition on Serum Concentrations of Two Teratogenic Alkaloids (Anagyrine and Ammodendrine) From Lupines (Lupinus spp.) That Cause Crooked Calf Disease. Journal of Animal Science. 86:2771-2778 doi:10.2527/jas.2007-0610.
Welch, K.D., Panter, K.E., Gardner, D.R., Green, B.T., Pfister, J.A., Cook, D. 2008. The Effect of High Deltaline Concentration on the Toxicity of Methyllycaconitine in Mice. International Society on Toxicology Meeting.
Ralphs, M.H., Creamer, R., Baucom, D., Gardner, D.R., Welch, S.L., Graham, J.D., Hart, C., Cook, D., Stegelmeier, B.L. 2007. Relationship between the endophyte embellisia spp. and the toxic alkaloid swainsonine in major locoweed species (Astragalus and Oxytropis). Journal of Chemical Ecology, Vol. 34 No. 1 pp.32-28 (2008). Published online 12/01/2007 DOI 10.1007/s10886-007-9399-6
Lee, S.T., Cook, D., Panter, K.E., Gardner, D.R., Ralphs, M.H., Motteram, E.S., Pfister, J.A., Gay, C. 2007. Lupine induced "Crooked Calf Disease" in Washington and Oregon: Identification of the alkaloid profiles in Lupinus sulphureus, Lupinus leucophyllus, and Lupinus sericeus. Journal of Agricultural and Food Chemistry, Web release 11/27/2007 Article DOI: 10.1021/jf0723110 Journal releae Volume 55, Number 26, pp. 10649-10655.
Pimentel, L., Correa, F.R., Gardner, D.R., Panter, K.E., Dantas, A.F., Medeiros, R.A., Mota, R.A., Araujo, J.A. 2007. Mimosa tenuiflora as a Cause of Malformations in Ruminants in the Northeastern Brazilian Semiarid Rangelands. Veterinary Pathology.
Molyneux, R.J., Lee, S.T., Gardner, D.R., Panter, K.E., James, L.F. 2007. Phytochemicals: The Good, the Bad, and the Ugly?. Phytochemistry.68(22-24):2973-2985.
Gardner, D.R., Pfister, J.A. 2007. Toxic alkaloid concentrations in Delphinium nuttallianum, D. andersonii, and D. geyeri in the Intermountain region. Vol. 60 Issue 4 pp.441-446.
Hueza, I.M., Guerra, J., Haraguchi, M., Gardner, D.R., Asano, N., Ikeda, K., Gorniak, S.L. 2007. Assessment of the perinatal effects of maternal ingestion of Ipomoea carnea in rats. Experimental and Toxicologic Pathology, 58:439-446.
Panter, K.E., Gardner, D.R., Lee, S.T., Pfister, J.A., Ralphs, M.H., Stegelmeier, B.L., James, L.F. 2007. Important poisonous plants of the United States. Veterinary Toxicology: Basic and Clinical Principles, Chpt. 66 pp. 825-872.
Liang, Y., Gardner, D.R., Miller, C.D., Chen, D., Anderson, A.J., Weimer, B.C., Sims, R. 2006. Study of Biochemical Pathways and Enzymes Involved in Pyrene Degradation by Mycobacterium sp. Strain KMS. Applied and Environmental Microbiology Vol. 72, No. 12, pp. 7821-7828.
Johnson, D.A., Bhattarai, K., Jones, T.A., Bushman, B.S., Gardner, D.R. 2007. North American Legumes for Rangeland Restoration, Conservation, and Forage Production in the Western U.S.. Society for Range Management Meeting Abstracts.
Lee, S.T., Ralphs, M.H., Panter, K.E., Cook, D., Gardner, D.R. 2006. Alkaloid Profiles, Concentration and Pools in Velvet Lupine (Lupinus leucophyllus) Over the Growing Season. Journal of Chemical Ecology. 33:75-84
Panter, K.E., Gardner, D.R., Holstege, D., Stegelmeier, B.L. 2007. A case of acute water hemlock (cicuta maculata) poisoning and death in cattle after ingestion of green seed heads. Poisonous Plants Global Research and Solutions, Chpt. 44, pp. 259-264.
Stegelmeier, B.L., Lee, S.T., James, L.F., Gardner, D.R., Panter, K.E., Ralphs, M.H., Pfister, J.A. 2007. The comparative pathology of locoweed poisoning in livestock, wildlife and rodents. Poisonous Plant Global Research and Solutions. Chpt. 61, pp. 359 - 365.
Garrossian, M., Lee, S.T., Molyneux, R.J., Gardner, D.R. 2007. N-alkylated derivatives of swainsonine. Poisonous Plant Global Research and Solutions, Chpt. 84, pp. 492 - 497.
Stegelmeier, B.L., Lee, S.T., James, L.F., Gardner, D.R., Panter, K.E., Ralphs, M.H., Pfister, J.A. 2007. The effects of vaccination on riddelliine toxicity in rats. Poisonous Plant Global Research and Solutions, Chpt. 15, pp. 89 - 93.
Lee, S.T., Panter, K.E., Molyneux, R.J., Chang, C.T., Gardner, D.R., Pfister, J.A. 2007. Separation and isolation of teratogenic piperidine enantiomers from nicotiana and lupinus species. Poisonous Plant Global Research and Solutions, Chpt. 80, pp. 469 - 475.
Panter, K.E., James, L.F., Wierenga, T.L., Gay, C., Motteram, E., Lee, S.T., Gardner, D.R., Pfister, J.A., Ralphs, M.H., Stegelmeier, B.L. 2007. Research on Lupine-Induced "Crooked Calf Disease" at the Poisonous Plant Research Laboratory: Past, Present and Future. Poisonous Plants Global Research and Solutions. Chpt. 10, pp. 58 - 65.
Gardner, D.R., Thorne, M.S., Molyneux, R.J., Pfister, J.A., Seawright, A.A. 2006. Pyrrolizidine alkaloids in Senecio madagascariensis from Australia and Hawaii and assessment of possible livestock poisoning. Biochemical Systematics and Ecology.
Liang, M., Davis, E., Gardner, D.R., Cai, X., Wu, Y. 2001. Involvement of AtLAC15 in lignin synthesis in seeds and in root elongation of Arabidopsis. Planta.
Lee, S.T., Wildeboer, K., Panter, K.E., Kem, W., Gardner, D.R., Molyneux, R.J., Chang, C.T., Soti, F., Pfister, J.A. 2006. Relative toxicities and neuromuscular nicotinic receptor agonistic potencies of anabasine enantiomers and anabaseine. Neurotoxicology and Teratology.
Barbosa, R.C., Riet-Correa, F., Medeiros, R.M., Lima, E.F., Barros, S.S., Gimeno, E.J., Molyneux, R.J., Gardner, D.R. 2006. Intoxication by ipomoea sericophylla and ipomoea riedelii in goats in the state of paraiba, northeastern brazil. Toxicon.
Barbosa, R.C., Riet-Correa, F., Medeiros, R.M., Lima, E.F., Gimeno, J.E., Barros, S.S., Molyneux, R.J., Gardner, D.R. 2006. Intoxication by ipomoea sericophylla and ipomoea riedelii in goats in the state of paraiba, northeastern brazil. Toxicon. Volume:47:371-379.
Faeth, S.H., Gardner, D.R., Cimmamon, J.H., Jani, A., Hamilton, C.E., Wittlinger, S.K., Jones, T.A. 2006. Temporal and spatial variation in alkaloid levels in achnatherum robustum, a native grass infected with the endophyte neotyphodium. Journal of Chemical Ecology.
Johnson, D.A., Bhattarai, K., Jones, T.A., Gardner, D.R., Cane, J.H. 2005. Basalt milkvetch: a promising north american legume for rangeland rehabilitation, conservation, and forage production. Society for Range Management Meeting Abstracts.
Johnson, D.A., Jones, T.A., Cane, J.H., Gardner, D.R., Peel, M. 2005. Basalt milkvetch and globemallows: north american forbs for rehabilitation, conservation, and forage production. Society for Range Management Meeting Abstracts.
Wang, S., Panter, K.E., Gardner, D.R., Evans, R.C., Bunch, T.D. 2004. Effects of the pine needle abortifacient, isocupressic acid, on bovine oocyte maturation and preimplantation embryo development. Animal Reproduction Sciences.
Gardner, D.R., Romero, J., Ralphs, M.H., Creamer, R. 2003. Correlation of an endophytic fungus (alternaria spp.) with the presence of swainsonine in lambert locoweed (oxytropis lambertii). Poisonous Plants Symposium Proceedings.
PFISTER, J.A., STEGELMEIER, B.L., GARDNER, D.R., JAMES, L.F. GRAZING OF SPOTTED LOCOWEED (ASTRAGALUS LENTIGINOSUS)BY CATTLE AND HORSES IN ARIZONA. JOURNAL OF ANIMAL SCIENCE 81:2285-2293, 2003.
Ralphs, M.H., Gardner, D.R. 2003. Distribution of norditerpene alkaloids in tall larkspur plant parts through the growing season. Journal of Chemical Ecology. Vol. 29, No. 9 pp. 2013-2021
LEE, S.T., GARDNER, D.R., GARROSSIAN, M., PANTER, K.E., SERREQI, A.N., SCHOCH, T.K., WIERENGA, T.L. DEVELOPMENT OF ENZYME-LINKED IMMUNOSORBENT ASSAYS FOR ISOCUPRESSIC ACID AND SERUM METABOLITES OF ISOCUPRESSIC ACID. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. 2003.
PFISTER, J.A., GARDNER, D.R., STEGELMEIER, B.L., HACKETT, K., SECRIST, G. CATASTROPHIC CATTLE LOSS TO LOW LARKSPUR (DELPHINIUM NUTTALLIANUM) IN IDAHO. VETERINARY AND HUMAN TOXICOLOGY. Vol. 45, No. 3, pp. 137-139, 2003.
MEDEIROS, R., BARBOSA, R.C., RIET-CORREA, F., LIMA, E.F., TABOSA, I.M., DE BARROS, S.S., GARDNER, D.R., MOLYNEUX, R. TREMORGENIC SYNDROME IN GOATS CAUSED BY IPOMOEA ASARIFOLIA IN NORTHEASTERN BRAZIL. TOXICON. 2003.
Stegelmeier, B.L., Hall, J.0., Gardner, D.R., Panter, K.E. 2003. The toxicity and kinetics of larkspur alkaloid, methyllycaconitine, in mice. Journal of Animal Science.
SHIELL, B.J., GARDNER, D.R., CRAMERI, G., EATON, B.T., WOJTEK, M.P. SITES OF PHOSPHORYLATION OF P AND V PROTEINS FROM HENDRA AND NIPAH VIRUSES: NEWLY EMERGED MEMBERS OF PARAMYXOVIRIDAE. VIRUS RESEARCH. 2003.
LEE, S.T., STEGELMEIER, B.L., PANTER, K.E., PFISTER, J.A., GARDNER, D.R., SCHOCH, T.K., JAMES, L.F. EVALUATION OF ACTIVE IMMUNIZATION AGAINST METHYLLYCACONITINE TOXICITY IN MICE. JOURNAL OF ANIMAL SCIENCE 2003, 81:232-238.
Ralphs, M.H., Gardner, D.R., Turner, D.L., Pfister, J.A., Thacker, E.T. 2002. Predicting toxicity of tall larkspur (delphinium barbeyi) and measurement of the variation in toxic alkaloid concentration between plants and among yearss. Journal of Chemical Ecology. Vol. 28, No. 11 pp. 2327-2341.
COLODEL, E.N., GARDNER, D.R., DRIEMMEIER, D., ZLOTOWSKI, P. IDENTIFICATION OF SWAINSONINE AS A GLYCOSIDE INHIBITOR RESPONSIBLE FOR SIDACARPINIFOLIA POISONING. VETERINARY AND HUMAN TOXICOLOGY. 2002.
Garrossian, M., Gardner, D.R., Panter, K.E., James, L.F. 2002. Preparation of tetrahydroagathic acid: a serum metabolite of isocupressic acid, a cattle abortifacient in ponderosa pine.. Journal of Agricultural and Food Chemistry.
RALPHS, M.H., WELSH, S.L., GARDNER, D.R. DISTRIBUTION OF THE LOCOWEED TOXIN, SWAINSONINE, IN POPULATIONS OF OXYTROPIS LAMBERTII. JOURNAL OF CHEMICAL ECOLOGY. 2002.
LI, X., GARDNER, D.R., RALPHS, M.H., WANG, R. DEVELOPMENT OF STS AND CAPS MARKERS FOR IDENTIFICATION THREE TALL LARKSPURS (DELPHINIUM SPP.). GENOME. 2002.
GARDNER, D.R., MOLYNEUX, R.J., RALPHS, M.H. ANALYSIS OF SWAINSONINE IN LOCOWEEDS (OXYTROPIS SPP.): EXTRACTION METHODS AND DETECTION USING LIQUID CHROMATOGRAPHY AND TANDEM MASS SPECTROMETRY. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. 2001.
LEE, S.T., STEGELMEIER, B.L., GARDNER, D.R., VOGEL, K.P. THE ISOLATION AND IDENTIFICATION OF STEROIDAL SAPOGENINS IN SWITCHGRASS. JOURNAL OF NATURAL TOXINS. 2001.
GARDNER, D.R., RALPHS, M.H., TURNER, D., WELSH, S. TAXONOMIC IMPLICATIONS OF DITERPENE ALKALOIDS IN THREE TOXIC TALL LARKSPUR SPECIES (DELPHINIUM SPP.). BIOCHEMICAL SYSTEMATICS AND ECOLOGY. 2002.
PFISTER, J.A., RALPHS, M.H., GARDNER, D.R., STEGELMEIER, B.L., MANNERS, G.D., PANTER, K.E., LEE, S.T. MANAGEMENT OF THREE TOXIC DELPHINIUM SPECIES BASED ON ALKALOID CONCENTRATIONS. BIOCHEMICAL SYSTEMATICS AND ECOLOGY. 2002.
LI, X., RALPHS, M.H., GARDNER, D.R., WANG, R. GENETIC VARIATION WITHIN AND AMONG 22 ACESSIONS OF THREE TALL LARKSPUR SPECIES (DELPHINIUM SPP.) BASED ON RAPD MARKERS. BIOCHEMICAL SYSTEMATICS AND ECOLOGY. 2002.
Panter, K.E., Mayland, H.F., Gardner, D.R., Shewmaker, G. 2001. Death losses in beef cattle after grazing lupinus argenteus (silvery lupine). Veterinary and Human Toxicology.
LEE, S.T., SCHOCH, T.K., STEGELMEIER, B.L., GARDNER, D.R., THAN, K.A., MOLYNEUX, R.J. DEVELOPMENT OF ENZYME-LINKED IMMUNOSORBENT ASSAYS FOR THE HEPATOTOXIC ALKALOIDS RIDDELLIINE AND RIDDELLIINE N-OXIDE. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. 2001.
PFISTER, J.A., PANTER, K.E., GARDNER, D.R., STEGELMEIER, B.L., RALPHS, M.H., MOLYNEUX, R.J., LEE, S.T. ALKALOIDS AS ANTI-QUALITY FACTORS IN PLANTS ON WESTERN U.S. RANGELANDS. JOURNAL OF RANGE MANAGEMENT. 2001.
Ralphs, M.H., Gardner, D.R. 2001. Influence of defoliation on toxic alkaloid concentration and alkaloid poolsin tall larkspur. Journal of Chemical Ecology.
Ralphs, M.H., Gardner, D.R. 2001. Alkaloid levels in duncecap (delphinium occidentale) and tall larkspur (d. barbeyi)grown in reciprocal gardens: separating genetic from environmental influences. Biochemical Systematics and Ecology.
Ralphs, M.H., Gardner, D.R., Pfister, J.A. 2000. A functional explanation for patterns of norditerpenoid alkaloid levels in tall larkspur (delphinium barbeyi). Journal of Chemical Ecology.
GARDNER, D.R., MANNERS, G.D., PANTER, K.E., LEE, S.T., PFISTER, J.A. THREE NEW TOXIC NORDITERPENOID ALKALOIDS FROM THE LOW LARKSPUR DELPHINIUM NUTTALLIANUM PRITZ. JOURNAL OF NATURAL PRODUCTS. 2000.
SCHOCH, T.K., GARDNER, D.R., STEGELMEIER, B.L. GC/MS/MS DETECTION OF PYRROLIC METABOLITES IN ANIMALS POISONED WITH THE PYRROLIZIDINE ALKALOID RIDDELLINE. VETERINARY AND HUMAN TOXICOLOGY. 2000.
PANTER, K.E., WEINZWEIG, J., GARDNER, D.R., STEGELMEIER, B.L., JAMES, L.F. COMPARISON OF CLEFT PALATE INDUCTION BY NICOTIANA GLAUCA IN FETAL GOATS AND SHEEP. TERATOLOGY. 2000.
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