Alkaloid metabolism in wounded Catharanthus roseus seedlings
Copyright 2004 Elsevier SAS
| Veröffentlicht in: | Plant physiology and biochemistry : PPB. - 1991. - 42(2004), 7-8 vom: 30. Juli, Seite 623-8 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , |
| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2004
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| Zugriff auf das übergeordnete Werk: | Plant physiology and biochemistry : PPB |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't Ethylenes Secologanin Tryptamine Alkaloids Vinca Alkaloids raubasine 4QJL8OX71Z vindoline 571PJ1LW03 Vinblastine mehr... |
| Zusammenfassung: | Copyright 2004 Elsevier SAS The effect of mechanical wounding on alkaloid metabolism was analyzed in Catharanthus roseus seedlings. Wounding induced an increase in ajmalicine accumulation, whereas catharanthine remained unaffected. A positive dual effect on vindoline was noticed. Short and mid-term effects were detected between 12 and 24 h after mechanical damage was inflicted, and apparently resulted from the accelerated transformation of the tabersonine intermediaries to vindoline. Long-term effects involved a generalized increase in carbon flux towards alkaloid synthesis. Exposure to ethylene (1 ppm) produced similar results to those observed in wounded seedlings, suggesting that it might be mediating the wound-induced increase in alkaloid synthesis. No synergistic or additive effects were observed when wounded seedlings were exposed to ethylene or jasmonate |
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| Beschreibung: | Date Completed 20.12.2004 Date Revised 30.09.2020 published: Print Citation Status MEDLINE |
| ISSN: | 1873-2690 |