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http://hdl.handle.net/11154/2631
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Title: | Phytogrowth properties of limonoids isolated from Cedrela ciliolata |
Authors: | Cespedes, CL Calderon, JS Gomez-Garibay, F Segura, R King-Diaz, B Lotina-Hennsen, B |
Issue Date: | 1999 |
Abstract: | An epimeric mixture of the limonoid photogedunin, isolated from the heartwood of C. ciliolata, as well as its R- and S-acetate derivative were evaluated for phytotoxicity in mono- and dicotyledoneous plants. A mixture of epimeric photogedunin 1 and 2, a mixture of epimeric photogedunin acetate, (R)-photogedunin acetate 3, and (S)-photogedunin acetate 4 inhibited seed germination, seedling growth, and root and hypocotyl/coleoptyle growth in all species assayed. The concentration of phytochemicals required for 50% inhibition ranged from 4.5 to 300 mu M. Inhibitory plant responses appeared to require that the OH-group at C-23 be acetylated in photogedunin, since the nonacetylated compound showed less phytotoxic activity. |
URI: | http://hdl.handle.net/11154/2631 |
ISSN: | 0098-0331 |
Appears in Collections: | Ciencias
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