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    Author(s): Suki C. Croan
    Date: 2004
    Source: Forest products journal. Vol. 54, no. 2 (Feb. 2004). Pages 68-76.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (211 KB)

    Description

    Mushroom-producing white-rot fungi can be used to convert woodwaste into gourmet and medicinal mushrooms. White-rot fungi do not always readily colonize on conifer wood because of its extractives content. This study evaluated the resinous extractive content of loblolly pine (Pinus taeda), ponderosa pine (Pinus ponderosa), and an unknown species of southern yellow pine before and after treatment with the extractive-degrading fungi Aureobasidium spp., Ceratocystis spp., and Ophiostoma spp. Fungal treatment removed 70 to 99.9 percent of extractives. Scanning electron microscopy showed heavy mycelial growth of the colorless isolate Ophiostoma piliferum, with good sporulation, on the surface of loblolly and southern yellow pine chips, in the resin canals, and in the parenchyma cells within 4 to 5 days. The treated wood chips were used to cultivate lignolytic mushroom-producing, white-rot basidiomycetes of various Pleurotus species and two other fungi, Grifola frondosa and Hericium erinaceus. The results show that lignolytic white-rot basidiomycetes can easily colonize and produce mushrooms on treated conifer wood chips.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Croan, Suki C. 2004. Conversion of conifer wastes into edible and medicinal mushrooms. Forest products journal. Vol. 54, no. 2 (Feb. 2004). Pages 68-76.

    Keywords

    Mushrooms, wood wastes, conifer wastes.

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