References
- Anon . 1959 . The Weeds Act 1959 , London : HMSO .
- Bicchi , C. , D'Amato , A. and Cappelletti , E. 1985 . Determination of pyrrolizidine alkaloids in Senecio inaequidens D.C. by capillary gas chromatography . Journal of Chromatography , 349 : 23 – 29 .
- Borstel , K. V. , Witte , L. and Hartmann , T. 1989 . Pyrrolizidine alkaloid patterns in populations of Senecio vulgaris S. vernalis and their hybrids . Phytochemistry , 28 : 1635 – 1638 .
- Bradbury , R. B. and Culvenor , C. C. J. 1954 . The alkaloids of Senecio jacobaea L. . Australian Journal of Chemistry , 1 : 378 – 383 .
- Brown , M. S. , Molyneux , R. J. and Roitman , J. N. 1994 . A general method for High Performance Liquid Chromatography of pyrorolizidine alkaloid free bases and N‐oxides . Phytochemical Analysis , 5 : 251 – 255 .
- Cooper , M. R. and Johnson , A. W. 1984 . MAFF Reference Book 161 , London : HMSO .
- Culvenor , C. C. J. , Edgar , J. A. and Smith , L. W. 1981 . Pyrrolizidine alkaloids in honey from Echium plantagineum L. . Journal of Agricultural and Food Chemistry , 29 : 958 – 960 .
- Deinzer , M. L. , Thompson , P. A. , Burgett , D. M. and Issacson , D. L. 1977 . Pyrrolizidine alkaloids: their occurrence in honey from Tansy Ragwort (Senecio jacobaea L.) . Science , 195 : 497 – 499 .
- Harper , J. L. and Wood , W. A. 1957 . Biological flora of the British Isles: Senecio jacobaea L. . Journal of Ecology , 45 : 617 – 637 .
- Hartman , T. and Toppel , G. 1987 . Senecionine N‐oxide, the primary product of pyrrolizidine alkaloid biosynthesis in root cultures of Senecio vulgaris . Phytochemistry , 26 : 1639 – 1643 .
- Hartman , T. and Zimmer , M. 1986 . Organ‐specific distribution and accumulation of pyrrolizidine alkaloids during the life history of two annual senecio species . Journal of Plant Physiology , 122 : 67 – 80 .
- Hartmann , T. , Ehmke , A. , Eilert , U. , Von Borstel , K. and Theuring , C. 1989 . Sites of synthesis, translocation and accumulation of pyrrolizidine alkaloid N‐oxides in Senecio vulgaris L. . Planta , 177 : 98 – 107 .
- Huxtable , R. , Stillman , A. and Ciaramitaro , D. 1977 . Characterisation of alkaloids involved in human Senecio (pyrrolizidine) poisoning . Proceedings of the Western Pharmacological Society , 20 : 445
- Kedzierski , B. and Buhler , D. R. 1986 . Method for determination of pyrrolizidine alkaloids and their metabolites by high performance liquid chromatography . Analytical Biochemistry , 152 : 59 – 65 .
- Molyneux , R. J. and James , L. F. 1990 . Pyrrolizidine alkaloids in milk: thresholds of intoxication . Veterinary and Human Toxicology , 32 : 94 – 103 .
- Parker , C. E. , Verman , S. , Tomer , K. B. , Reed , R. L. and Buhler , D. R. 1990 . Determination of Senecio alkaloids by thermospray liquid chromatography/mass spectrometry . Biomedical and Environmental Mass Spectrometry , 19 : 1 – 12 .
- Ramsdell , H. S. and Buhler , D. R. 1981 . High performance liquid chromatographic analysis of pyrrolizidine alkaloids using a reversed phase styrene‐divinyl benzene resin column . Journal of Chromatography , 210 : 154 – 158 .
- Ridker , P. M. and Mcdermott , W. V. 1989 . Comfrey herb tea and hepatic veno‐occlusive disease . Lancet , 25 March : 657 – 658 .
- Ridker , P. M. , Ohkuma , S. , Mcdermott , W. V. , Trey , C. and Huxtable , R. 1985 . Hepatic venocclusive disease associated with the consumption of pyrrolizidine containing dietary supplements . Gastroenterology , 88 : 1050 – 1054 .
- Roitman , J. N. 1983 . Ingestion of pyrrolizidine alkaloids: a health hazard of global proportions , ACS Symposium series Vol. 234 , 345 – 378 . Xenobiotics in food and feeds .
- Saisho , K. , Toyoda , M. , Takagi , K. , Satake , M. , Takahashi , S. , Yamamoto , Y. , Kasai , K. , Hashimoto , S. and Saito , Y. 1994 . Identification of aconitine in raw honey that caused food poisoning . Journal of the Food Hygiene Society of Japan , 35 ( 1 ) : 46 – 50 .
- Sütlüpinar , N. , Mat , A. and Satganoglu , Y. 1992 . Poisoning by toxic honey in Turkey . Archives of Toxicology , 67 : 148 – 150 .
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