Senecio douglasii

Johnson, A. E. and Molyneux, R. J. 1984. Toxicity of threadleaf groundsel (Senecio douglasii var. longilobus) to cattle. American Journal of Veterinary Research, 45 26-31. 

Cai et al. first used a chloroform-0.07 M sodium phosphate buffer (pH 6.4-6.5) solvent system for the separation of matrine and oxymatrine from Sophora flavescens, atropine, scopolamine, and hyoscyamine from Datura mete L. by HSCCC. Cooper et al. successfully used chloroform-0.2 M potassium phosphate buffer with an optimum pH value of each at 5.0, 5.6, 6.0, and 7.4 for the separation of pyrrolizidine alkaloids from various sources of Senecio douglasii var. longilobus, Trichodesma incanum, Symphytum spp. and Amsinckia tessellata, respectively. 

C H,3NOe Rosmarinine Crotalaria juncea L. (103) Senecio douglasii D.C. (84) Senecio eremophilus Richards (84) Senecio longilobus Benth. (84) Senecio riddellii Torr. and Gray var. Parksii Cory (75, 84) (73) 209 -120° ... 

Serious livestock poisoning episodes are mentioned in literature from the effects of the pyrrolizidine alkaloid of the Senecio genus, especially Senecio riddellii, Senecio douglasii, and Senecio jacobaea The toxicity of... 

A large-scale extraction apparatus, employing ion-exchange resins, has been used for extracting pyrrolizidine alkaloids from Senecio jacobaea. Isolation of platy-phylline and seneciphylline (36) by electrodialysis of an extract from 5. platyphyl-loides has been achieved by Russian workers. Purification of the alkaloidal mixture was aided by electrochemical reduction of the extract. H.p.l.c. has been used to separate alkaloidal extracts from S. vulgaris S. longilobus ( = S.douglasii), and S. jacobaea. The major alkaloids were identified by mass... 

---