| trans-4-aminoproline, a phytotoxic metabolite with herbicidal activity produced by ascochyta caulina. | a phytotoxic metabolite, characterized through nmr techniques and synthetic methods as trans-4-aminoproline, was isolated from the culture filtrates of ascochyta caulina, a promising mycoherbicide for biological control of chenopodium album. the metabolite, which shows interesting phytotoxic properties, together with ascaulitoxin (recently characterized as n.2-beta-d-glucoside of the unusual bis-amino acid 2,4,7-triamino-5-hydroxyoctandioc acid) and another unidentified compound, compose an acti ... | 2000 | 10680176 |
| determination of ascochyta caulina phytotoxins by high-performance anion exchange chromatography and pulsed amperometric detection. | a simple and sensitive method has been developed for the rapid qualitative and quantitative analysis of the phytotoxins produced by ascochyta caulina, a potential mycoherbicide for the biocontrol of chenopodium album. considering that the two main toxins produced by this fungus, namely ascaulitoxin and trans-4-amino-d-proline, and the third toxin, identified as 2,4,7-triamino-5-hydroxyoctandioic acid, have an amino acid nature, high-performance anion exchange chromatography with pulsed amperomet ... | 2001 | 11793817 |