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中国农学通报 ›› 2015, Vol. 31 ›› Issue (2): 153-158.doi: 10.11924/j.issn.1000-6850.2014-2191

• 生物技术科学 • 上一篇    下一篇

Biolog法测定土壤微生物群落功能多样性预处理方法的筛选

党 雯1,郜春花2,张 强2,李建华2,卢朝东2,靳东升2,卢晋晶2   

  1. (1山西大学生物工程学院,太原 030006;2山西省农业科学院农业环境与资源研究所,太原 030006)
  • 收稿日期:2014-08-12 修回日期:2015-01-22 接受日期:2014-10-14 出版日期:2015-03-19 发布日期:2015-03-19
  • 通讯作者: 郜春花
  • 基金资助:
    国家国际科技合作专项资助“微生物菌剂在矿区复垦与生态恢复中的应用”(2011DFR31230);山西省农科院重点项目“生物有机肥在矿区复垦土壤修复中的研究与应用”(2013zd12);山西省科技重大专项“工矿废弃地生态系统恢复与重建关键技术研究与示范”(20121101009)。

Screening of Preprocessing Methods of Biolog for Soil Microbial Community Functional Diversity

Dang Wen1, Gao Chunhua2, Zhang Qiang2, Li Jianhua2, Lu Chaodong2, Jin Dongsheng2, Lu Jinjing2   

  1. (1School of Biological Engineering,Shanxi University, Taiyuan 030006;2Institute of Agricultural Environment & Resources, Shanxi Academy of Agricultural Sciences, Taiyuan 030006)
  • Received:2014-08-12 Revised:2015-01-22 Accepted:2014-10-14 Online:2015-03-19 Published:2015-03-19

摘要: 作为测定微生物群落功能多样性主要方法之一的biolog法,由于操作简单、灵敏度高、分辨力强、获得数据量丰富,受到众多研究者的青睐,但文献中报道的有关实验预处理方法却不尽相同。为了筛选最佳的预处理方法,通过比较文献中3种较为常用的方法,研究不同预处理对biolog法测定微生物群落功能多样性的影响。结果表明:AWCD值总体变化趋势B方法优于A、C;微生物对六类碳源的利用率中B方法对大部分碳源利用较高,且结果较稳定;两种处理的Simpson指数、Shannon丰富度指数及碳源利用丰富度指数均B>C>A,而McIntosh指数、Shannon均匀度结果不太稳定,但经方差分析,其差异不显著,且B方法的方差最小;主成分分析的结果B方法优于A与C。总之,在250 r/min的转速下震荡 30 min,并于28℃条件下培养接种平板的处理(B法)效果较好,其测定结果重现性好,且操作简便快捷,是比较理想的预处理方法。

关键词: 马铃薯, 马铃薯, 马铃薯帚顶病毒, 粉痂菌, 块茎坏死

Abstract: As one of the main methods of microbial community functional diversity measurement, biolog method is favored by many researchers for its simple operation, high sensitivity, strong resolution and rich data. But the preprocessing methods reported in the literature are not the same. In order to screen the best preprocessing methods, this paper took three typical treatments to explore the effect of different preprocessing methods on soil microbial community functional diversity. The results showed that, method B’s overall trend of AWCD values was better than A and C’s. Method B’s microbial utilization of six carbon sources was higher, and the result was relatively stable. The Simpson index, Shannon richness index and Carbon source utilization richness index of the two treatments were B > C > A, while the McIntosh index, Shannon evenness was not very stable, but the difference of variance analysis was not significant, and the method B was always with a smallest variance. Method B’s principal component analysis was better than the A and C. In a word, the method using 250 r/min shaking for 30 minutes and cultivating at 28℃ was the best one, because it was simple, convenient, and with good repeatability.