- Rhynchosporium secalis
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Rhynchosporium secalis Scientific classification Kingdom: Fungi Phylum: Ascomycota Class: Ascomycetes Order: Incertae sedis Family: Incertae sedis Genus: Rhynchosporium Species: R. secalis Binomial name Rhynchosporium secalis
(Oudem.) DavisSynonyms 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.
Contents
Morphology
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 strom. 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
- Agropyron dasystachyum, A. desertorum, A. elmeri, A. intermedium, A. repens, A. riparium, A. scabriglume, A. semicostatum, A. subsecundum, A. trachycaulum, Agrostis alba, A. stolonifera, A. tenuis
- Alopecurus geniculatus, A. pratensis
- Bouteloua gracilis, B. hirsuta
- Bromus aleutensis, B. carinatus, B. ciliatus, B. frondosus, B. inermis, B. pumpellianus, B. secalinus, B. vulgaris
- Calamagrostis arundinacea, C. epigeios
- Chrysopogon gryllus
- Critesion murinum
- Cynodon dactylon
- Dactylis glomerata
- Danthonia sp.
- Deschampsia caespitosa
- Elymus angustus, E. canadensis, E. chinensis, E. condensatus, E. glaucus, E. innovatus, E. junceus, E. triticoides, E. virginicus
- Elytrigia repens
- Festuca pratensis, F. rubra
- Hordeum aegiceras, H. brachyantherum, H. distichon, H. hexastichon, H. jubatum, H. leporinum, H. murinum, H. vulgare, Lolium multiflorum, L. perenne, L. rigidum
- Microlaena stipoides
- Panicum sp.
- Phalaris arundinacea
- Phleum pratense
- Poa annua, P. eminens, P. pratensis
- Quercus chrysolepis
- Secale cereale, S. montanum
- edit] Sources
Index Fungorum
USDA ARS Fungal DatabaseReferences
- ^ Mathre, D.E. (1997). Compendium of barley diseases. American Phytopathological Society. pp. 120.
Categories:- Plant pathogens and diseases
- Cereal diseases
- Barley diseases
- Ascomycota incertae sedis
- Ascomycota stubs
- Plant disease stubs
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