内蒙古白粉菌区系多样性  

Flora Diversity of Powdery Mildews in Inner Mongolia

作　　者：刘铁志[1] 

机构地区：[1]赤峰学院生命科学系,赤峰024000

出　　处：《菌物研究》2011年第1期15-20,共6页Journal of Fungal Research

基　　金：内蒙古自治区自然科学基金项目(20080404Zd11);赤峰市优秀青年学科带头人项目

摘　　要：为阐明内蒙古白粉菌区系组成特点、探讨其起源和演化,对其区系多样性进行了分析。区系中含有10种以上的属为白粉菌属(Erysiphe)、单囊白粉菌属(Podosphaera)和高氏白粉菌属(Golovinomyces),3属共104种,占总种数的84.55%。根据地理分布资料,内蒙古白粉菌可划分为世界广布种(13.82%)、北温带成分(26.83%)、旧世界温带成分(17.07%)、温带亚洲成分(5.69%)、地中海—西亚及中亚成分(2.44%)、东亚—北美成分(4.88%)、东亚成分(18.70%)、中国特有种(8.12%)和北美成分(2.44%)等9个分布型;内蒙古白粉菌区系表现出明显的温带区系特征,并且东亚成分占有重要地位;在区系亲缘关系上与甘肃、吉林和新疆较为接近,与暖温带和亚热带的区系较为疏远。The flora diversity of powderymildews in Inner Mongolia was analyzed. The results indicated that there was a rich mycobiota diversity of powdery mildews in Inner Mongolia of China. Erysiphe, Podosphaera and Golovinomyces were geographically dominant andwidespread genera in this region. According to their geographical distribut ion, those powdery mildew species could be grouped into 9 distribution types as Cosmopolitan ( 13 82% ) , North Temperate elements ( 26 83%) , Old World Temperate elements ( 17 07%) , Temperate Asian elements ( 5 69% ) , Mediterranean- Western Asian to Central Asian elements ( 2 44%) , Eastern Asian- North American elements ( 4 88%) , Eastern Asian elements ( 18 70% ) , endemic to China ( 8 12% ) and North American elements ( 2 44%) . The powdery mildew fungi in Inner Mongolia had distinct characteristics of those in Temperate Zone, amongwhich the Eastern Asian elements were important types, and had closed relationships to those in Gansu, Jilin and Xinjiang in Northern China, but far to those in warm temperate zone and subtropical zone.

关 键 词：白粉菌科 地理分布 相似性系数 

分 类 号：Q93[生物学—微生物学]