当前位置: 首页 > 文章 > 寄生大小麦根部的一种半知菌的形态特征 南京农业大学学报 1992,15 (3) 41-44
Position: Home > Articles > STUDIES ON THE MORPHOLOGY AND CHARACTERISTICS OF MICRODOCHIUM BOLLEYI Journal of Nanjing Agricultural University 1992,15 (3) 41-44

寄生大小麦根部的一种半知菌的形态特征

作  者:
杜金歧;陈永萱
单  位:
土壤农业化学系
关键词:
半知菌;禾谷多粘菌;比较试验;鉴定
摘  要:
有一种半知菌寄生于大、小麦及禾本科杂草根部,其表现症状、菌体形态与禾谷多粘菌易于混淆.在根部细胞内见到的是它的念珠状菌丝体或由菌丝形成的微菌核.它不能传播大麦黄花叶病毒和小麦黄花叶病毒.该菌能在 PDA 培养基上生长,产生平展、具粘质、黑色的菌落,其中有线状和念珠状菌丝,菌丝大都埋入基质.分生孢子梗极短,产生在线状菌丝上.分生孢子无色、单孢、呈稍弯的长椭圆形.鉴定为Microdochium bolleyi(Sprayue)de Hoog & Hermanides-Nijhof.
译  名:
STUDIES ON THE MORPHOLOGY AND CHARACTERISTICS OF MICRODOCHIUM BOLLEYI
作  者:
Du Jingqi;Chen Yongxuan(Dept of Soil Science and Agricultural Chemistry,Nanjing Agric Univ,Nanjing210014)
关键词:
Microdochium bolleyi;;Polymyxa graminis;;comparitive experiment;;morphological character;;identification
摘  要:
A fungus parasitic in root cell of barley,wheat and some grass of Gramineae,was similar toPolymyxa graminis in symptoms and easily confused with each other.The torulose hyphae or microsclerotiaformed from mycelia of this fungus were observated in the cell of roots.The fungus could not tranmitted bar-ley yellow mosaic virus(BaYMV)and wheat yellow mosaic virus(WYMV),but it could be cultured onPDA medium and could form effuse,slimy and black colonies.The filamentous and torulose hyphae of thefungus usually grow under substrat.Conidiophores in filamentous hyphae were excessively short.Conidiawere ellipsoidal and some were crooked.According to its characters,the fungus was identified asMicrodochium boileyi.

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