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草业学报 ›› 2011, Vol. 20 ›› Issue (3): 298-303.

• 研究简报 • 上一篇    下一篇

辽宁省刺萼龙葵入侵区和未入侵区土壤真菌多样性研究

曲波1,2,祝明炜1,杨红1,李楠1,陈旭辉1,张国良3,付卫东3,李天来2   

  1. 1.沈阳农业大学生物科学技术学院,辽宁 沈阳 110161;
    2.设施园艺省部共建教育部重点实验室 沈阳农业大学,辽宁 沈阳 110161;
    3.中国农业科学院农业环境与可持续发展研究所,北京 100081
  • 收稿日期:2010-04-28 出版日期:2011-03-25 发布日期:2011-06-20
  • 作者简介:曲波(1972-),女,吉林辉南人,副教授,博士。E-mail:syau_qb@163.com
  • 基金资助:
    公益性行业(农业)科研专项(20110327)和沈阳农业大学博士后基金项目(74739)资助。

A study on soil fungal diversity of Solanum rostratum-invaded and non-invaded areas in Liaoning province

QU Bo1,2, ZHU Ming-wei1, YANG Hong1, LI Nan1, CHEN Xu-hui1, ZHANG Guo-liang3, FU Wei-dong3, LI Tian-lai2   

  1. 1.College of Biological Technology, Shenyang Agricultural Universit, Shenyang 110161, China;
    2.Key Laboratory of Protected Horticulture, Shenyang Agricultural University, Ministry of Education, Shenyang 110161, China;
    3.Institute of Environment and Sustainable Development in Agriculture of Chinese Academy of Agricultural Sciences, Beijing 100081, China
  • Received:2010-04-28 Online:2011-03-25 Published:2011-06-20

摘要: 2008-2009年,对辽宁省刺萼龙葵入侵区(Ⅰ)以及未入侵区(Ⅱ)进行了选择性的取土和抽样调查。对采集的150份土样用平板法培养,经分离、纯化共鉴定的真菌分属30个属,其中刺萼龙葵入侵区(Ⅰ)21个属。通过计数统计发现在刺萼龙葵入侵区(Ⅰ)土壤真菌的各种类群中,以青霉属、曲霉属、木霉属、毛霉属、根霉属、镰孢菌属、枝顶孢属种类较多,为该区的优势类群。根据Jaccard相似性指数原理,刺萼龙葵入侵区(Ⅰ)与未入侵区(Ⅱ)土壤真菌群落的相似性指数Cj值为0.50~0.75,属于中等相似水平,其真菌多样性差异并不显著。从土壤真菌的角度分析,刺萼龙葵向未入侵区(Ⅱ)扩散蔓延的可能性较大。

Abstract: Soil fungal diversity and numbers were analysed in Solanum rostratum-invaded and non-invaded areas in Liaoning province from 2008 to 2009. One hundred and fifty soil samples were collected and cultured with the soil plate method. All the species were identified and divided into 30 genera, of which Penicillium, Aspergillus, Trichoderma, Mucor, Rhizopus and Fusarium were the dominant groups of the S. rostratum-invaded areas. According to the Jaccard index of similarity theory, the similarity level of the soil fungal communities was medium between the invaded and non-invaded areas. Cj values were between 0.50 and 0.75. Soil fungal diversity was not significantly different between invaded and non-invaded areas. From the soil fungal flora, it is probable that S. rostratum spread to non-invaded areas.

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