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机构地区:[1]西北农林科技大学葡萄酒学院,陕西杨凌712100
出 处:《科技导报》2007年第23期51-54,共4页Science & Technology Review
基 金:陕西省13115"科技创新工程重大科技专项"(2007ZDKG-09)
摘 要:对成熟的葡萄白粉菌闭囊壳进行了显微形态观察和测量统计,对闭囊壳的形态作出了描述。葡萄白粉菌的闭囊壳散生至近聚生,黑褐色,扁球形,直径为76.8~145μm,壁细胞为不规则多角形;附属丝为7~26根,长约224.9~628.5μm,上下近等粗,宽约4.45~9.6μm,有隔层,基部为暗褐色,上部无色且透明,顶端钩状卷曲;子囊3~6个,卵形、近卵形到近球形,无色,一般有短柄而少数没有柄,大小为(36.8~71.8)μm×(19.6~54.9)μm,内有3~7个子囊孢子;子囊孢子呈椭圆形,扁圆形,无色。Some mature samples of Uncinula necator cleistothecia were observed and its morphology was studied in detail. Generally the mature concavo-convex cleistothecia are scattered on the surface of leaves, but sometimes they are clustered together. The diameter of cleistothecia is is in a range of 76.8~145 μm. The number of appendages per cleistothecium is 7~26, which is about 224.9~628.5 μm in length, and 4.45~9,6 μm in width. The upper part of appendage is transparent, its base is dark brown, and the top curls up into one or two and a half circles, Each cleistothecium contains 3~6 asci, which are oval or near oval or near spheroid in shape and have a short handle in general, of a size in a range of (36.8~71.8) μm×(19.6~54.9) μm, The number of ascospore per ascus varies from 3 to 7, and they are colorless and oblong.
分 类 号:S436.631[农业科学—农业昆虫与害虫防治]
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