Research Topic: Agaricus bisporus

Spent casing, Sphagnum moss, grass fibers, and green compost as peat alternatives in casing soils for Agaricus bisporus cultivation

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Button mushrooms are commonly grown on peat-based soil, but peat extraction damages important ecosystems. This study tested several alternative materials including spent mushroom substrate, moss, processed grass fibers, and compost as peat replacements. Researchers found that up to 75% of peat could be replaced with these alternatives while maintaining mushroom yield and preventing disease, offering promising sustainable options for commercial growers.

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Whole Genome Sequence of the Commercially Relevant Mushroom Strain Agaricus bisporus var. bisporus ARP23

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Researchers sequenced the complete genome of a wild button mushroom strain (ARP23) that has been successfully bred with commercial mushrooms to create the ‘Heirloom’ variety. This strain is larger and contains more genes than other known button mushroom strains, making it valuable for breeding disease-resistant varieties. The genome sequence reveals that all button mushroom strains share core genes for breaking down plant material in compost, but have diverse collections of optional genes. This genetic resource provides a foundation for developing mushrooms more resistant to diseases and viruses.

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