Non-additive transcriptional profiles underlie dikaryotic superiority in Pleurotus ostreatus laccase activity.

ABSTRACT:

Background

The basidiomycete Pleurotus ostreatus is an efficient producer of laccases, a group of enzymes appreciated for their use in multiple industrial processes. The aim of this study was to reveal the molecular basis of the superiority of laccase production by dikaryotic strains compared to their parental monokaryons.

Methodology/principal findings

We bred and studied a set of dikaryotic strains starting from a meiotic population of monokaryons. We then completely characterised the laccase allelic composition, the laccase gene expression and activity profiles in the dikaryotic strain N001, in two of its meiotic full-sib monokaryons and in the dikaryon formed from their mating.

Conclusions/significance

Our results suggested that the dikaryotic superiority observed

SUBMITTER: Castanera R 

PROVIDER: S-EPMC3764117 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature