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sclerotium

American  
[skli-roh-shee-uhm] / sklɪˈroʊ ʃi əm /

noun

Mycology.
  • sclerotia
    plural
  1. a vegetative, resting food-storage body in certain higher fungi, composed of a compact mass of hardened mycelia.


sclerotium British  
/ sklɪəˈrəʊʃɪəm /

noun

  1. a compact mass of hyphae, that is formed by certain fungi and gives rise to new fungal growth or spore-producing structures

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

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Nouns

Etymology

Origin of sclerotium

From New Latin, dating back to 1810–20; see origin at sclerotin, -ium

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The sclerotium is a black-violet, slightly curved, conical body, a few millimeters to up to six centimeters in length that can develop in place of a pollen grain.

From Scientific American May 17, 2013

Ergot is the name given to the spore, the sclerotium, of the parasitic filamentous fungus Claviceps purpurea, which attacks various cereal grains and wild grasses, especially rye.

From Scientific American May 17, 2013

Many such clusters can be produced on one sclerotium, so that soon the greater part of the surface is covered by filamentous conidia-bearers with their panicles.

From Fungi: Their Nature and Uses by M. C. (Mordecai Cubitt) Cooke

The latter differs in not springing from a sclerotium.

From European Fungus Flora: Agaricaceae by George Massee

This latter commences when the sclerotium is brought into contact with damp ground during the usual temperature of our warmer seasons.

From Fungi: Their Nature and Uses by M. C. (Mordecai Cubitt) Cooke

Last year’s bumper crop came from the sclerotia of two of them — variant 195 and 234.

From New York Times Apr. 26, 2022

The sclerotia remain in the soil for years as the source of future infections.

From Time Magazine Archive

The disease typically infects soybeans during flowering, resulting in stem lesions with extensive growth of white mold and formation of hard, black sclerotia.

From Time Magazine Archive

The sclerotia are, here as in many other fungi, biennial organs, designed to begin a new vegetation after a state of apparent quietude, and to send forth special fruit-bearers.

From Fungi: Their Nature and Uses by M. C. (Mordecai Cubitt) Cooke

The wilting and shrivelling of Clover is sometimes due to Sclerotinia, the mycelium of which pervades the roots and stock, on which the sclerotia may be found.

From Disease in Plants by H. Marshall Ward

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