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当前位置: 首页 > 文章 > 稻曲病菌的形态学观察研究 植物病理学报 2003,33 (6) 517-523
Position: Home > Articles > Study on morphology of Ustilaginoidea virens Acta Phytopathologica Sinica 2003,33 (6) 517-523

稻曲病菌的形态学观察研究

作  者：
张君成;陈志谊;张炳欣;刘永锋;陆凡
单  位：
江苏省农科院植保所;浙江大学植物保护系
关键词：
稻曲病菌;厚垣孢子;子囊孢子;分生孢子;子座;形态特征
摘  要：
利用光学和电子显微镜对稻曲病菌的有性子座和不同来源的繁殖体进行了形态学观察。子囊壳单层环状埋生于子座外层,顶端突出子座表面而形成许多乳突结构。子囊发育成熟后,子囊壳壁的顶端可自行消解,露出里面的子囊。子囊孢子无色单胞,线状。厚垣孢子圆形或稍椭圆,黄褐色至黑褐色,胞壁厚密,外表有许多疣状突起。子囊孢子和厚垣孢子萌发都产生次生分生孢子。这些次生分生孢子与液体培养获得的分生孢子在大小和形态特征上是一样的,它们都是薄壁分生孢子。薄壁分生孢子卵圆形或长圆形,大小为2.6～8μm×2～5μm,无色透明,外表光滑。薄壁分生孢子萌发直接形成新一代薄壁分生孢子,此繁殖过程可不断重复进行。
译  名：
Study on morphology of Ustilaginoidea virens
作  者：
ZHANG Jun-cheng;CHEN Zhi-yi;ZHANG Bing-xin;LIU Yong-feng;LU Fan Plant Protection Institute, Jiangsu Academy of Agricultural Science, Nanjing 210014, China Department of Plant Protection,Zhejiang University, Hangzhou 310029, China
关键词：
Ustilaginoidea virens;;chlamydospore;;ascospore;;conidium;;stroma;;morphological charateristics
摘  要：
Morphology of sexual stroma and different types of propagules of Ustilaginoidea virens (Cooke) Takahashi were observed using optical and electronic microscopes. Perithecia annulosly and monlayer embedded in the rind of stroma. The apex of perithecia grew out of surface of stroma and papillae structure was formed on the surface of stroma. When asci fully developed, the apical wall of perithecia disappeared, and asci emerged from the perithecia. Ascospore was hyaline, unicel- lular, filiform. Chlamydospore was spherical or elliptical, yellowish-brown to black-brown , with thick and compacted wall. The surface of chlamydospore had many verrucae. Both ascospore and chlamydospore formed secondary conidia when they germinated. The secondary conidia with similar morphological characteristics as the submerged conidia obtained from liquid culture, perhaps were thin-wall conidia. The thin-wall conidia were oval or oblong, 2.6～8μm×2～5μm, hyaline, with smooth surface, directly produced next generation of the thin-wall conidia when they germinated. This type of reproduction process could repeat successively.

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