18/07/23, 12:15 AM
Reidi tee promenaad, Tallinn, Estonia
Ubran park, coastal zone, Sclerotium on Leymus arenarius host
59°26'36.1"N 24°47'11.4"E
🔆 Home lab, with flash light
Original Instagram postClaviceps purpurea
rye ergot fungus
- Scientific identification
- Claviceps purpurea (Fr.) Tul.
- Family
- Clavicipitaceae
- Class
- Sordariomycetes
- Genus
- Claviceps
Names across languages
- English: rye ergot fungus
- German: Purpurbrauner Mutterkornpilz
- Estonian: Harilik tungaltera
- Russian: Спорынья пурпурная
The scientific profile
From the latest record: 2024-08-18.
Hymenium
(Ascomycete fungi with perithecia embedded in the stroma)
Cap
Forms sclerotia instead of a cap)
Hymenium attachment
Hymenium Attachment
Stipe
Stipe
Description
Ascospores produced in perithecia; conidia produced in honeydew stage.
Ecology
Parasitic on grasses, particularly rye and other cereals; produces sclerotia that replace grains.
Edibility
Toxic; causes ergotism if ingested.
Microscopy
Ascospores are filiform (thread-like), 50-70 x 1-2 μm; conidia produced in the honeydew stage are ellipsoid to cylindrical.
Description
Odour not applicable
Overview
Commonly known as ergot, is a parasitic fungus that infects grasses, especially rye. The fungus replaces the grains of the host plant with hard, dark purple to black sclerotia, which contain toxic alkaloids. These sclerotia are the overwintering stage and germinate to produce fruiting bodies that release ascospores. During the growing season, the fungus also produces conidia in a sticky honeydew that spreads the infection.
1853). Annls Sci. Nat., Bot., Sér. 3 20: 45.
Field encounters
Source hashtags
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