title: Photoinduction of albino-3 gene expression in Neurospora crassa conidia.
abstract: The synthesis of carotenoids is induced by blue light in Neurospora crassa mycelia, while in conidia (the vegetative spores) the accumulation of carotenoids also occurs in the dark. The expression of the albino-3 (al-3) gene (coding for the carotenogenic enzyme geranyl-geranyl pyrophosphate synthetase) in isolated conidia was analysed. The level of al-3 mRNA was shown to be increased in light-induced wild type (wt) conidia. This light response was elicited by blue light and was under the control of the white collar-1 (wc-1) and white collar-2 (wc-2) gene products. This indicates that the blue-light photoreceptor and the light transduction pathway which activate al-3 gene expression in mycelia are probably the same as in conidia.
authors.affiliation: Unità di Nutrizione Sperimentale, Istituto Nazionale della Nutrizione via Ardeatina, Roma, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Baima
authors.forename: A
authors.initials: A
authors.lastname: Carattoli
authors.forename: G
authors.initials: G
authors.lastname: Macino
authors.forename: G
authors.initials: G
authors.lastname: Morelli
mesh_terms: D001483:Base Sequence; D015152:Blotting, Northern; D015870:Gene Expression / Q000528:radiation effects; D005800:Genes, Fungal / Q000528:radiation effects*; D008027:Light; D008969:Molecular Sequence Data; D009492:Neurospora crassa / Q000235:genetics* / Q000254:growth & development / Q000528:radiation effects; D015345:Oligonucleotide Probes; D012331:RNA, Fungal / Q000235:genetics / Q000302:isolation & purification; D012333:RNA, Messenger / Q000032:analysis / Q000235:genetics
chemical_list: D015345:Oligonucleotide Probes; D012331:RNA, Fungal; D012333:RNA, Messenger