The Delphinium alkaloids methyllycaconitine (MLA), nudicauline, 14-deacetylnudicauline (14-DN), barbinine, and deltaline were investigated for their effects on neuromuscular transmission in lizards. The substituent at C14 provides the only structural difference among the alkaloids MLA, nudicauline, 14-DN, and barbinine. Deltaline lacks the N-(methylsuccinyl)anthranilic acid at C18 common to the...

Since its first valid description by Linnaeus in 1753, the genus Delphinium L. has undergone numerous taxonomical changes that we synthesize here. The knowledge of taxonomic history is essential to clarify circumscription. For this purpose, outline pre-Linnaean history, from Dioscorides' translated works dating back 16th century Tournefort's classification 1694. Regarding post-Linnaean discuss ...

Based on results of the analysis herbarium collections, data from online-resources iNaturalist and UkrBIN various literature sources information about distribution six plant species family Ranunculaceae Juss. with national conservation level included in «The Red Data Book Ukraine» territory Poltava region were summarized. Four (Adonis vernalis L., A. volgensis DC., Pulsatilla patens (L.) Mill.,...

Alkaloids constitute the largest class of plant secondary compounds, occurring in 20 to 30% of perennial herbaceous species in North America. Alkaloid-containing plants are of interest, first because alkaloids often have pronounced physiological reactions when ingested by livestock, and second because alkaloids have distinctive taste characteristics. Thus, alkaloids may kill, injure, or reduce ...

By killing cattle and otherwise complicating management, the many species of larkspur (Delphinium spp.) present a serious, intractable, and complex challenge to livestock grazing management in the western United States. Among the many obstacles to improving our understanding of cattle-larkspur dynamics has been the difficulty of testing different grazing management strategies in the field, as t...