Definition of sclerotium in English:



  • The hard dark resting body of certain fungi, consisting of a mass of hyphal threads, capable of remaining dormant for long periods.

    • ‘The fungus ‘also produces sclerotia that can be the same size and shape as the seed.’’
    • ‘Whenever soil is highly contaminated with sclerotia, growers must rotate to a crop like wheat, which is prone to scab, instead of to other Sclerotinia-susceptible broadleaf crops, such as soybeans, dry beans, or canola.’
    • ‘The Chinese sometimes include zhu ling (they use the sclerotium rather than the fruiting body) as an ingredient in herbal tonic formulas.’
    • ‘In addition, many fungi are able to parasitize spores, sclerotia, or hyphae of other fungi, resulting in biocontrol.’
    • ‘It survives in soil as sclerotia or resting mycelium and is quite happy on many hosts, which allows it to survive for many years in the absence of soybeans.’


Mid 19th century: modern Latin (former genus name), from Greek sklēros ‘hard’.