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当前位置: 首页 > 文章 > 内蒙古大青山土庄绣线菊根围丛枝菌根真菌多样性 生态学杂志 2016,35 (12) 3323-3328
Position: Home > Articles > The diversity of arbuscular mycorrhizal fungi in the rhizosphere of Spiraea pubescens in the Daqingshan Mountain,Inner Mongolia,China Chinese Journal of Ecology 2016,35 (12) 3323-3328

内蒙古大青山土庄绣线菊根围丛枝菌根真菌多样性

作  者：
赵敏;峥嵘;白淑兰;朱艳育
单  位：
内蒙古农业大学林学院;内蒙古师范大学生命科学与技术学院
关键词：
土庄绣线菊;丛枝菌根真菌;多样性;土壤因子
摘  要：
为探明内蒙古大青山不同生境中土庄绣线菊(Spiraea pubescens)根围丛枝菌根真菌(arbuscular mycorrhizal fungi,AMF)多样性特征,选择水磨村、小井沟、白石头沟3个地点采集土庄绣线菊根围土壤,采用湿筛倾析-蔗糖离心法分离AMF孢子,根据形态学方法进行鉴定。结果表明:3个地点共分离鉴定出AMF 11属48种,其中2个未知种,Glomus属在3个地点中均占有绝对优势;水磨村孢子密度显著高于小井沟和白石头沟,水磨村和小井沟的Simpson指数和均匀度指数高于白石头沟。采用冗余分析(redundancy analysis,RDA)研究了土壤理化性质与AMF群落多样性的关系,表明土壤p H、有机C、速效K与AMF丰富度呈显著正相关,其中,p H对AMF丰富度影响最大,而碱解N和速效P与AMF丰富度呈显著负相关,速效P、碱解N与Simpson指数呈显著负相关。
译  名：
The diversity of arbuscular mycorrhizal fungi in the rhizosphere of Spiraea pubescens in the Daqingshan Mountain,Inner Mongolia,China
作  者：
ZHAO Min;ZHENG Rong;BAI Shu-lan;ZHU Yan-yu;College of Forestry,Inner Mongolia Agricultural University;College of Life Science and Technology,Inner Mongolia Normal University;
关键词：
Spiraea pubescens;;arbuscular mycorrhizal fungi;;diversity;;soil factors
摘  要：
To evaluate the diversity of arbuscular mycorrhizal fungi in the rhizosphere of Spiraea pubescens in the Daqingshan Mountain of Inner Mongolia,China,soil samples were collected from three sites Shuimocun,Xiaojinggou and Baishitougou. AMF spores were separated by wetsieving and decanting procedure and centrifugation using sucrose and identified by the morphological methods. The results showed that 48 AMF species were isolated from all soil samples,belonging to 11 genera,and 2 were unidentified species. Glomus was the dominant genus in the three sites. Spore density in soil from Shuimocun was significantly higher than those from Xiaojinggou and Baishitougou. However,the Simpson index and Pielou index in Shuimocun and Xiaojinggou were higher than in Baishitougou. Redundancy analysis of the relationship between soil factors and AMF diversity showed that AMF richness was significantly positively correlated with p H,soil organic carbon and available potassium,and p H was the driving factor influencing AMF richness. Available nitrogen and available phosphorus were significantly negatively correlated with AMF richness and Simpson index.

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