Posted by:
lizardrc
at Wed Dec 2 02:55:11 2009 [ Email Message ] [ Show All Posts by lizardrc ]
Interestingly enough, named after the chemical or vice versa,
http://en.wikipedia.org/wiki/Daigremontianin
Notes on Toxic plant chemicals:
Daigremontianin is a bufadienolide. Bufadienolides are cardiac glycosides that are similar to cardenolides, differing only in the structure of the C-17 substituent on the D ring. This chemical has been found to be toxic in experiments on mice (Wagner et al. 1985).
General poisoning notes:
Devil's-backbone (Kalanchoe daigremontiana) is an indoor ornamental plant. This plant contains a cardiac glycoside that has caused experimental toxicity and death in chicks and mice. It has caused illness in pets, such as rabbits and mice. Dogs and cats are also at risk from ingesting plant material. The plants should be kept away from children, as well. Devil''s-backbone produces plantlets along the leaf margins, which fall off and become new plants. These plantlets can be found in profusion around the pot in which an adult devil''s-backbone is growing. Children and family pets have easy access to these plantlets. Several other species of Kalanchoe may be found growing as houseplants in Canada. Tests have shown that some of them may also contain toxic bufadienalide compounds. These compounds were only recently discovered (Williams and Smith 1985, Joubert 1989), and so caution should be exercized with all species. Some members of the genus Kalanchoe have caused poisoning of sheep and cattle in South Africa and Australia, where they are native or naturalized (Cheeke and Schull 1985, Williams and Smith 1985).
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more info - lizardrc, Wed Dec 2 02:55:11 2009