[Effect of light and glucose on the apothecial development of Iodophanus carneus (Fungi, Ascomycotina)].
Iodophanus carneus requires light for apothecial production. When apothecia were photoinduced by single 24 hour photoperiods, the effect varied according to the stage of development of the mycelium: it was most receptive at the 5th day of growth, but an inhibitory effect on apothecial formation was evident in cultures exposed in the 1st, 2nd or 3rd day of growth. A minimum single exposure of 10 s was required for apothecial development, whereas a single exposure of 4 h was required for asci development. Maximum production of apothecia was found in those cultures exposed to constant light at 100 b/p. The localization of apothecial differentiation was evident in predictable areas. The concentration of glucose affected stimulatory and inhibitory effects of light on fruit-body formation.
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Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales, UBA, Buenos Aires, Argentina.
D001203:Ascomycota / Q000187:drug effects / Q000254:growth & development* / Q000528:radiation effects; D004307:Dose-Response Relationship, Radiation; D005947:Glucose / Q000494:pharmacology*; D008027:Light; D017440:Photoperiod; D012098:Reproduction / Q000187:drug effects / Q000528:radiation effects
D005947:Glucose
Acción de la luz y de la glucosa sobre la fructificación de Iodophanus carneus (Fungi, Ascomycotina).