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Ascochyta is a genus of ascomycete fungi, containing several species that are pathogenic to plants, particularly cereal crops. The taxonomy of this genus is still incomplete. The genus was first described in 1830 by Marie-Anne Libert, who regarded the spores as minute asci and the cell contents as spherical spores. Numerous revisions to the members of the genus and its description were made for the next several years. Species that are plant pathogenic on cereals include, A. hordei, A. graminea, A. sorghi, A. tritici. Symptoms are usually elliptical spots that are initially chlorotic and later

Species

GENUS

  1. KingdomFungi
  2. PhylumAscomycota
  3. ClassDothideomycetes
  4. OrderPleosporales
  5. FamilyDidymellaceae
Habitatmarine
Observations recorded19,248

via GBIF

Wikidata facts

Image
Ascochyta sorghi.jpg
Show 3 more facts
taxon name
Ascochyta
Commons category
Ascochyta
taxon author citation
Lib.
Sources (3)

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~5 min read

Article

9 sections
Contents
  • Some selected species of ''Ascochyta''
  • Hosts and symptoms
  • Disease cycle
  • Environment
  • Management
  • Importance
  • See also
  • References
  • External links

Ascochyta is a genus of ascomycete fungi, containing several species that are pathogenic to plants, particularly cereal crops. The taxonomy of this genus is still incomplete. The genus was first described in 1830 by Marie-Anne Libert, who regarded the spores as minute asci and the cell contents as spherical spores. Numerous revisions to the members of the genus and its description were made for the next several years. Species that are plant pathogenic on cereals include, A. hordei, A. graminea, A. sorghi, A. tritici. Symptoms are usually elliptical spots that are initially chlorotic and later become a necrotic brown. Management includes fungicide applications and sanitation of diseased plant tissue debris.

Some of these pathogens in the genus Ascochyta affect grass species, including grains.

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