【摘 要】
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The powdery mildew fungi (Erysiphales) are common obligate plant pathogens distributed throughout the world.The anamorph is playing an important role in gen
【机 构】
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EngineeringResearchCenterofChineseMinistryofEducationforEdibleandMedicinalFungi,JilinAgriculturalUni
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The powdery mildew fungi (Erysiphales) are common obligate plant pathogens distributed throughout the world.The anamorph is playing an important role in generic systematics.The characteristics of anamorphic were few reported in China.Chinese peony, Paeonia lactiflora, is widely grown as an ornamental plant in gardens, and is also used as a medicinal herb in traditional Chinese medicine.Powdery mildew is one of the important disease on it.The fungi were collected on Paeonia lactiflora in Changchun and were identified as Erysiphe paeoniae.Its anamorph morphological and germinating characters were firstly studied in this paper.Mycelium was white in color; conidiophores erect, foot cells cylindric, straight, of terminal origin, 20 to 43 × 8 to 11.5 μm, with the following cells present in variable numbers; conidia formed singly on conidiophores, broadly ellipsoid to rarely slightly ovoid, 21.6 to 36 ×10.8 to 16.8 μm, and mean value 28.9 × 12.9μm; fibrosin bodies were not present in conidia; appressorium was lobed and germ tubes arose from the ends of conidia and terminated in lobed.
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