Rhynchosporium secalis

Summary

Rhynchosporium secalis is an ascomycete fungus that is the causal agent of barley and rye scald.

Rhynchosporium secalis
Scientific classification
Kingdom:
Division:
Class:
Order:
Incertae sedis
Family:
Incertae sedis
Genus:
Species:
R. secalis
Binomial name
Rhynchosporium secalis
(Oudem.) Davis
Synonyms

Marssonia secalis Oudem. (1897) Marssonina secalis (Oudem.) Magnus (1906) Rhynchosporium graminicola Heinsen (1897) Septocylindrium secalis Oudem.

Morphology edit

No sexual stage is known. The mycelium is hyaline to light gray and develops sparsely as a compact stroma under the cuticle of the host plant. Condia (2-4 x 12-20 μm) are borne sessilely on cells of the fertile stroma. They are hyaline, 1-septate, and cylindric to ovate, mostly with a short apical beak. Microconida have been reported, but their function is unknown. They are exuded from flasklike mycelial branches.[1]

Host species edit

Sources edit

  • Index Fungorum
  • USDA ARS Fungal Database

References edit

  1. ^ Mathre, D.E. (1997). Compendium of barley diseases. American Phytopathological Society. p. 120.