title: Ascosonchine, the enol tautomer of 4-pyridylpyruvic acid with herbicidal activity produced by Ascochyta sonchi.
abstract: A new phytotoxic enol tautomer of 4-pyridylpyruvic acid, named ascosonchine, was isolated from the culture filtrate of Ascochyta sonchi. Such a leaf pathogen is a potential biocontrol agent of Sonchus arvensis, a perennial herbaceous weed occurring throughout the temperate regions of the world. Ascosonchine, characterised as (Z)-2-hydroxy-3-(4-pyridyl)-2-propenoic acid by spectroscopic methods, showed selective herbicidal properties, that are not associated with antibacterial, antifungal or zootoxic activities.
authors.affiliation: Dipartimento di Scienze del Suolo della Pianta e dell'Ambiente, Università di Napoli Federico II, Via Università 100, 80055 Portici, Italy. evidente@unina.it
authors.forename: Antonio
authors.initials: A
authors.lastname: Evidente
authors.forename: Anna
authors.initials: A
authors.lastname: Andolfi
authors.forename: Mohamed A
authors.initials: MA
authors.lastname: Abouzeid
authors.forename: Maurizio
authors.initials: M
authors.lastname: Vurro
authors.forename: Maria Chiara
authors.initials: MC
authors.lastname: Zonno
authors.forename: Andrea
authors.initials: A
authors.lastname: Motta
mesh_terms: D001203:Ascomycota / Q000737:chemistry*; D006540:Herbicides / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010572:Pest Control, Biological / Q000379:methods; D018515:Plant Leaves / Q000187:drug effects / Q000254:growth & development; D011725:Pyridines / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D019289:Pyruvic Acid / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology
chemical_list: D006540:Herbicides; D011725:Pyridines; D019289:Pyruvic Acid