A sclerotium (/ s k l ə ˈ r oʊ ʃ ə m /; pl.: sclerotia (/ s k l ə ˈ r oʊ ʃ ə /) [help 1] is a compact mass of hardened fungal mycelium containing food reserves. One role of sclerotia is to survive environmental extremes.

sclerotium, a persistent, vegetative, resting spore of certain fungi (e.g., Botrytis, Sclerotium). It consists of a hard, dense, compact mycelium (mass of filaments that make up the body of a typical fungus) that varies in form and has a dark-coloured covering.

A sclerotium is a hard, sterile, dark or brightly colored structure from which ascocarps arise in certain discoid fungi (e.g., Sclerotiniaceae) and some species of Eupenicillium. Frequently sclerotia appear well before the development of ascocarps and asci. The ergot alkaloids are found within the sclerotium of the fungus Claviceps purpurea.

Sclerotium is a genus, or group of fungi. It was first described in 1790. [1] . The Sclerotium genus includes fungi that develop sclerotia and whose mycelia are unable to reproduce. Sclerotia are small circular structures that are typically brown or black in colour. [2] . A diverse range of fungi are found in this genus.

The meaning of SCLEROTIUM is a compact mass of hardened mycelium stored with reserve food material that in some higher fungi becomes detached and remains dormant until a favorable opportunity for growth occurs.

An ergot kernel, called a sclerotium, develops when a spore of fungal species of the genus Claviceps infects a floret of flowering grass or cereal. The infection process mimics a pollen grain growing into an ovary during fertilization.

May 28, 2014 · Sclerotinia sclerotiorum is a worldwide pathogen with a broad host spectrum pathogenic to around 400 plant species. Sclerotia formed by S. sclerotiorum serve as resting structures that secure fungal survival in soil for prolonged periods in the absence of a host plant or may help to overcoming periods of unsuitable growth conditions.

Sclerotia are multicellular structures having a more or less regular morphology and serving as reproductive bodies. They are often hard, solid, and able to survive relatively long periods of time in a dormant state. It is a little difficult to provide a definition of sclerotia that consistently distinguishes them from spores.

Sclerotium lacks fruiting structures and spores. It produces profuse white hyphae (thread-like material) on the infected plant tissues that radiates across the tissue in a fan-like pattern. The white hyphae is often diagnostic of the fungus.

Nov 30, 2005 · Sclerotinia sclerotiorum (Lib.) de Bary is a necrotrophic fungal pathogen causing disease in a wide range of plants. This review summarizes current knowledge of mechanisms employed by the fungus to parasitize its host with emphasis on biology, physiology and molecular aspects of pathogenicity.