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Morphological characteristics of Alternaria sp. YZU 171921 from Pyrus sinkiangensisi. Colony on PDA (A) and (B); sporulation patterns, conidiophores and conidia on the PCA (C)–(F); sporulation patterns, conidiophores and conidia on the host plant (G)–(I). Bars: (D)–(F) = 25 μm, (H) and (I) = 25 μm, (C) = 100 μm, (G) = 100 μm.
