以食用菌基質(zhì)中微生物為研究對(duì)象,研究γ射線輻照處理對(duì)基質(zhì)中微生物數(shù)量及群落的影響。結(jié)果表明:基質(zhì)中菌落總數(shù)和霉菌數(shù)經(jīng)過γ射線輻照后顯著減少;γ射線輻照對(duì)基質(zhì)中細(xì)菌種水平OTU和屬水平OTU相對(duì)豐度影響較大;種水平上,EscherichiaShigella、Uncultured bacterium（Lactococcus）、Uncultured organism 3條細(xì)菌OTU的豐度在輻照后明顯上升,其余細(xì)菌OTU明顯降低;屬水平上,輻照對(duì)Escherichia-Shigella影響較小;而從門水平上來看輻照對(duì)菌群影響不大,Proteobacteria和Firmicutes兩個(gè)門的細(xì)菌始終是優(yōu)勢菌群。γ射線輻照對(duì)基質(zhì)中真菌的菌群結(jié)構(gòu)影響較小,屬水平上,Fusatium、Unclassified、Candida、Aspergillus在輻照前后始終是優(yōu)勢菌群;門水平上,Ascomycota是主要優(yōu)勢菌。 

【文章頁數(shù)】：6 頁

【文章目錄】：
1. Introduction
2. Materials and Methods
    2.1. Experimental materials
    2.2. Experimental method
        2.2.1. Detection of the number of microorganisms
        2.2.2. Detection and analysis of microbial community structure
3. Results and Analysis
    3.1. Effects ofγirradiation on the microbial quantity in the matrix
    3.2. Effects ofγirradiation on the abundance and diversity of bacteria in the matrix
    3.3. Effects ofγirradiation on the abundance and diversity of fungi in the matrix
4. Conclusion and Discussion



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