The alkaloid profiles of Sophora nuttalliana and Sophora stenophylla |
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| Institution: | 1. Agricultural Science Research Technician, US Department of Agriculture–Agricultural Research Service, Rangeland Resources Research Unit, Cheyenne, WY 82001, USA;2. Ecologist, US Department of Agriculture–Agricultural Research Service, Fort Keogh Livestock and Range Research Laboratory, Miles City, MT 59301, USA;3. Nutritionist, US Department of Agriculture–Agricultural Research Service, Fort Keogh Livestock and Range Research Laboratory, Miles City, MT 59301, USA;4. Assistant Professor, New Mexico State University, Las Cruces, NM 88003, USA;1. Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;2. Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;3. Forest Management Branch, Sustainable Resource Development, Edmonton, Alberta, Canada;4. Department of Renewable Resources, University of Alberta, Edmonton, Alberta, Canada;5. Faculty of Natural Resources Management, Lakehead University, 955 Oliver Road, Thunder Bay, ON, Canada |
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| Abstract: | Sophora is a diverse genus in the family Fabaceae, comprised of herbs, shrubs, and trees that occurs throughout the world, primarily in the northern hemisphere. Species of Sophora are known to contain quinolizidine alkaloids that are toxic and potentially teratogenic. Two perennial herbaceous species occur in North America, Sophora stenophylla and Sophora nuttalliana. The quinolizidine alkaloid composition of these two species was investigated throughout their geographical distribution using field collections and herbarium specimens. Both species contain quinolizidine alkaloids, and S. nuttalliana contains the teratogen anagyrine. Lastly, neither species contains the neurotoxin swainsonine as implied by the common name “white loco” for S. nuttalliana. |
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