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Morphological features of Japanese isolates of Alternaria porri (MUCC 1688) on V8 juice agar medium. A–G. Conidia with filamentous beaks. H. Conidiophores. I. Culture on potato-dextrose agar medium (upper = surface, lower = reverse). J. Natural symptoms on Allium. Scale bars (A–H) = 25 µm.
