Rhynchosporium secalis

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Rhynchosporium secalis
Rynchopsporium secalis at Hordeum vulgare, bladvelekkenziekte wintergerst (1).jpg
Scientific classification
Kingdom: Fungi
Phylum: Ascomycota
Class: Ascomycetes
Order: Incertae sedis
Family: Incertae sedis
Genus: Rhynchosporium
Species: R. secalis
Binomial name
Rhynchosporium secalis
(Oudem.) Davis

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

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


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]



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