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  • Title: Do spawn storage conditions influence the colonization capacity of a wheat-straw-based substrate by Agaricus subrufescens?
    Author: Farnet AM, Qasemian L, Peter-Valence F, Ruaudel F, Savoie JM, Roussos S, Gaime-Perraud I, Ziarelli F, Ferré É.
    Journal: C R Biol; 2014; 337(7-8):443-50. PubMed ID: 25103829.
    Abstract:
    Storage conditions of the spawn of edible fungi are of major importance to facilitate the production of mushrooms. Here, standard storage conditions at 10°C or 15°C were used and the potential of colonization of standard European compost by the tropical species Agaricus subrufescens was assessed during the spawn running phase. Two lignocellulolytic activities, laccase and CMC-cellulase, were enhanced after storage compared to control as well as substrate transformation, as described by the aromaticity ratio and a humification ratio calculated from NMR data. This result indicates that mycelium growth probably occurred during storage at 10 or 15°C, leading to a larger amount of biomass in the inoculum. Moreover, the microbial functional diversity of the substrate was favored, showing that the electivity of the substrate was maintained. Thus, these findings indicate that recommendations for the mushroom producers can be established for A. subrufescens cultivation under European standard conditions.
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