Found 2 publications. Displayed publications from 1 to 2
Expand all publications       Show all as text (SweetDB notation)
1. (Article ID: 6956)
 
Evidente A, Capasso R, Cutignano A, Taglialatela-Scafati O, Vurro M, Zonno MC, Motta A
Ascaulitoxin, a phytotoxic bis-amino acid N-glucoside from Ascochyta caulina
Phytochemistry 48 (1998) 1131-1137
 

A new unusual phytotoxic bis-amino acid N-glucoside, named ascaulitoxin, was isolated from the culture filtrate of Ascochyta caulina, the causal agent of leaf and stem necrosis of Chenopodium album, a promising mycoherbicide for the biological control of this common noxious weed. Ascaulitoxin, characterized by extensive use of NMR techniques and chemical methods as N-2-(2,4,7-triamino-5-hydroxy)-octanedioyl-β-D-glucopyranoside, showed phytotoxic activity against host and non-host plants.

phytotoxins, ascaulitoxin, Ascochyta caulina, Chenopodium album, Chenopodiaceae, mycoherbicide, N-glucosides, nonproteigenic amino acids

The publication contains the following compound(s):
 

Expand this publication
2. (Article ID: 7458)
 
Fiore M, Rimando AM, Andolfi A, Evidente A
A new GC-MS method for the analysis of ascaulitoxin, its aglycone and 4-aminoproline from culture filtrates of Ascochyta caulina
Analytical Methods 2(2) (2010) 159-163
 

A new GC-MS method was developed for the analysis of ascaulitoxin, its aglycone, and 4-amino-d-proline, which are phytotoxins with potential herbicidal activity produced by Ascochyta caulina. The method involved directly treating the lyophilized culture filtrate with a derivatizing reagent, converting the mixture of toxins in the filtrate to their corresponding trimethylsilyl derivatives, and consequent analysis by EI-MS. The method is rapid, sensitive and highly specific for the identification and analysis of the toxins in a complex sample matrix. Analysis of culture filtrates using this method suggested that phytotoxicity correlates with the level of ascaulitoxin in the culture filtrate. A new method for the purification of 2,4,7-triamino-5-hydroxyoctandioic acid, the aglycone of ascaulitoxin, is also described.

GC-MS, ascaulitoxin, Ascochyta caulina, phytotoxin

The publication contains the following compound(s):
 

Expand this publication

Resort publications by:

New query Export IDs Home Help

Execution: <1 sec