| Autor: |
Kenfield, D., Bunkers, G., Wu, Y., Strobel, G., Sugawara, F., Hallock, Y., Clardy, J. |
| Zdroj: |
Experientia; Sep1989, Vol. 45 Issue 9, p900-902, 3p |
| Abstrakt: |
Gigantenone, a new eremophilane diepoxide, was isolated from the fungal plant pathogen Drechslera gigantea. It displays unique biological activity on higher plants. On most graminaceous species, the application of 18 nanomoles to a leaf surface results in the formation of 'green islands' - localized areas of chlorophyll retention. Gigantenone is structurally unrelated to the cytokinins, yet induces the green island effect associated with these phytohormones at comparable concentrations. However, on dicotyledonous species it generally causes necrotic lesions. On host plants of D. gigantea, gigantenone induced lesions closely resembling those appearing in natural infections. Gigantenone also induces root formation in mung bean hypocotyls and shows a high level of activity in several plant tissue culture systems. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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