Alternaria japonica
| Species: | Alternaria japonica Yoshii |
| Original Reference: | Yoshii, H. 1941. On the black spot of Asiatic crucifers and the black mould of cabbage. Journal of Plant Protection 28:17. |
| Additional Reference: | Simmons, E. G. 1995. Alternaria themes and variations (112-144). Mycotaxon. 55:112-117. |
| Conidia: | (on PCA) mature conidia typically 80-100 x 20-30 µm, non-beaked, broadly ellipsoid or ovoid to obclavate, smooth but may become evenly pitted or punctuate, medium translucent tawny brown, 7-10 transepta, 1-3 longisepta, solitary or typically in chains of 2-4. |
| Conidiophore: | (on PCA) Primary conidiophores arise directly from the agar surface and are 100-150 µm. Secondary conidiophores are often 55-60 x 5-6 µm. |
| Additional characters: | chlamydospores form on surface and subsurface hyphae |
| Disease: | Black spot of crucifers |
| Host: | Brassica oleracea L. (and varieties) [cabbage, borecole, braschette, cole, colewort, collards, flowering cabbage, kale] |
| Additional references: | http://www.apsnet.org/online/common/toc.asp |
| Alternaria species | Alternaria Online | Plant pathology | Agricultural and Life Sciences |