1887

Abstract

From a cDNA library, constructed from mushroom primordia, nine cDNAs were isolated which were either induced or specifically expressed during fruit body development and maturation of the basidiomycete These cDNAs varied in size from 372 to 1019 bp and hybridized to transcripts of 400-1600 nt. Four of the cDNAs were only expressed in the generative phase o: the life cycle while the other five cDNAs were strongly induced but had low steady-state mRNA levels in vegetatively grown mycelium of the hybrid strain Horst U1. An apparent full-length cDNA could be identified by sequence analysis and specified a putative protein homologous to the δ-subunit of the mitochondrial ATP synthase complex of and For one of the partial cDNAs, significant homology was found with a family of cell division control proteins, while another partial cDNA appeared to encode a cytochrome P450. All cDNAs, except the presumed cytochrome-P450-specifying cDNA (), hybridized with single copy genes scattered over the For the gene, the presence of several additional copies was shown by heterologous hybridizations. Based on changes in expression levels of the fruit-body-induced genes during development coinciding with alterations in morphological appearance of mushrooms, four stages of development were distinguished during growth and maturation of fruit bodies.

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/content/journal/micro/10.1099/00221287-143-6-1993
1997-06-01
2019-10-16
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http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-143-6-1993
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