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【求助】瓜类白粉病病原菌
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-------------------------------------------------------------------------------- 一种瓜类白粉病病原菌鉴定 400光镜,FAA染色 不知是否从图上可以看出,是否与fibrosin bodies(纤维状体) 是否能帮忙看是哪个种:病原为二孢白粉菌Golovinomyces cichoracearum(异名Erysiphe cichoracearum)或者 单丝壳属单丝壳白粉菌[Sphaerotheca fuliginea (Schl.)Poll], 其中之一? Golovinomyces cichoracearum的特点为:conidia that contained no fibrosin bodies(没有纤维状体) and germinated apically (顶点萌发)and no cleistothecia (没有闭囊壳)including the leaf-like outgrowths on the upper leaf surface; hyphae (菌丝)were between 5-8 µm wide with nipple shaped appressoria(附着胞). Conidiophores(分生孢子) were mostly erect containing a foot cell (37-64 x 7-11 µm) followed by two or three shorter cells (8-12 x 8-10 µm); conidia were cylindrical (26-34 x 14-18 µm) and produced in chains(孢子圆柱形\链状) . The basal septum of the conidiophore was just adjacent to mycelium. Fibrosin bodies were absent(没有纤维状体) |
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