瑞昌山药根际真菌多样性及溶磷菌株筛选  

Diversity of rhizosphere fungi in Dioscorea spp.and phosphate solubilizing strains screening

作　　者：詹寿发[1] 余国庆 彭琴[1] 甘金莲[1] 樊有赋[1] 陈晔[1] 

机构地区：[1]九江学院生命科学学院,江西九江332000 [2]瑞昌市农业局山药开发中心,江西瑞昌332200

出　　处：《广东农业科学》2013年第19期161-162,166,共3页Guangdong Agricultural Sciences

基　　金：江西省自然科学基金(20114BAB204022)

摘　　要：采用平板稀释法从瑞昌山药根际土壤中共分离获得根际真菌64株,分别属于13个属、4个科、3个目、3个纲。在鉴定的13属根际真菌中,曲霉属为优势属,其次是青霉属和木霉属。利用溶磷圈法从中获得3株具有溶磷效果真菌菌株。通过土壤理化性质的测定,分析根际真菌物种多样性与土壤养分的关系,结果显示,根际真菌种类和数量与土壤的养分含量呈正相关。Sixty-four rhizosphere fungi strains belonging to 13 genera, 4 families, 3 orders and 3 classes were isolated from rhizosphere soil of Ruiehang yam （Dioscorea spp.）by plate cultivation method. Aspergillus was the dominant genus among 13 genera, followed by Penicillium and Trichoderraa. 3 phosphate solubilizing fungi strains were isolated by soluble phosphorus method. The results also showed that the type and quantity of rhizosphere fungi were positively correlated with soil nutrient concentration.

关 键 词：瑞昌山药 根际真菌 多样性 溶磷菌株 

分 类 号：Q939.5[生物学—微生物学]