sclerotium

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sclerotium

 [sklĕ-ro´she-um]
a hard blackish mass formed by certain fungi, as ergot.

scle·ro·ti·um

, pl.

scle·ro·ti·a

(sklē-rō'shē-ŭm, -shē-ă),
1. In fungi, a variably sized resting body composed of a hardened mass of hyphae with or without host tissue, usually with a darkened rind, from which fruit bodies, stromata, conidiophores, or mycelia may develop.
2. The hardened resting condition of the plasmodium of Myxomycetes.

sclerotium

/scle·ro·ti·um/ (sklĕ-ro´she-um) a structure formed by fungi and certain protozoa in response to adverse environmental conditions, which will germinate under favorable conditions; in fungi, it is a hard mass of intertwined mycelia, usually with pigmented walls, and in protozoa it is a multinucleated hard cyst into which the plasmodium divides.

sclerotium

  1. a resting stage in many fungi. It takes the form of a ball of HYPHAE varying in size from a pinhead to a football, and usually has a hard, dark-coloured exterior coating. Fruiting bodies may be formed eventually from the sclerotium (either sexual or asexual) or a MYCELIUM may form. Normally the sclerotium does not contain spores.
  2. the firm resting condition of a myxomycete. see MYXOMYCOTA.

sclerotium

pl. sclerotia; a hard blackish mass of mycelia formed during the resting phase by certain fungi, as Claviceps purpurea.
References in periodicals archive ?
tuberregium to produce sporophores and sclerotia in column bags in a tropical environment; investigate the effects of different substrates used to supplement sawdust on the yield of sporophores and sclerotia; and investigate the relationship between various substrates and the nutritional content of P.
The sclerotia were soaked in water for 15 h and sliced into sets of about 6 [cm.
Induction of edible sclerotia of Pleurotus tuberregium (Fr) on various farm wastes.
Producing edible sclerotia of Pleurotus tuberregium (Fr) singer from wheat straw.
The sclerotia were then dislodged with a spatula and stuck on microscope slides and then counted.
flavus that produced sclerotia were screened for ability to produce aflatoxins.
Though 3 years later many of the sclerotia still survived, we were pleased to discover that these hardy life forms were under attack by numerous mycoparasitic fungi, including Humicola fuscoatra," says Wicklow.
Since many insects eat fungi, Wicklow believes that sclerotia may have evolved chemical defenses to protect them from insects.
The importance of sclerotia to fungal survival suggested to us that compounds produced by sclerotia should provide superior defenses against fungal-feeding insects," Wicklow says.
Sclerotia look like tiny pepper specks inside a kernel of field corn.
It was also important to know if these strains were rich producers of persistent-survival structures called sclerotia, which should enhance survival and competitiveness in the soil.
With an average of one or two sclerotia per 100 grams of soil, 30 to 50 percent of peanut plants growing in that soil could become infected," he says.