Rhynchosporium secalis is an ascomycete fungus that is the causal agent of barley and rye scald.
Rhynchosporium secalis | |
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Scientific classification | |
Kingdom: | |
Division: | |
Class: | |
Order: | Incertae sedis
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Family: | Incertae sedis
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Genus: | |
Species: | R. secalis
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Binomial name | |
Rhynchosporium secalis (Oudem.) Davis
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Synonyms | |
Marssonia secalis Oudem. (1897) Marssonina secalis (Oudem.) Magnus (1906) Rhynchosporium graminicola Heinsen (1897) Septocylindrium secalis Oudem. |
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]