title: A minor dihydropyran apocarotenoid from mated cultures of Blakeslea trispora.
abstract: The heterocyclic C15 apocarotenoid 1 was isolated from mated cultures of the strains F986 (+) and F921 (&#8722;) of Blakeslea trispora. This new compound formed during sexual interaction is a minor constituent of the culture media and its structure was elucidated by spectroscopic data, including 2D-NMR. A plausible biosynthetic pathway involving a double degradation of &#946;-carotene, followed by several oxidations of the resulting monocyclofarnesane C15 fragment is proposed.
authors.affiliation: Departamento de Química Orgánica,Universidad de Granada, Granada, Spain. afbarre@ugr.es
authors.forename: Alejandro F
authors.initials: AF
authors.lastname: Barrero
authors.forename: M Mar
authors.initials: MM
authors.lastname: Herrador
authors.forename: Pilar
authors.initials: P
authors.lastname: Artega
authors.forename: José-Antonio
authors.initials: JA
authors.lastname: González
authors.forename: Jesús F
authors.initials: JF
authors.lastname: Arteaga
mesh_terms: D053898:Biosynthetic Pathways; D002338:Carotenoids / Q000096:biosynthesis / Q000302:isolation & purification*; D017077:Culture Media, Conditioned / Q000737:chemistry; D046508:Culture Techniques; D006900:Hydroxylation; D015394:Molecular Structure; D009090:Mucorales / Q000378:metabolism* / Q000502:physiology
chemical_list: D017077:Culture Media, Conditioned; D002338:Carotenoids