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  • Title: [Change of microbial community in rhizoma sphere of cultivated Atractylodes lancea].
    Author: Guo LP, Huang LQ, Jiang YX, Chen ML, Lv DM, Zeng Y.
    Journal: Zhongguo Zhong Yao Za Zhi; 2007 Jun; 32(12):1131-3. PubMed ID: 17802868.
    Abstract:
    OBJECTIVE: To find the development rules of microbial community in rhizoma sphere of the cultivated Atractylodes lancea. METHOD: Total bacteria, fungi and actinomyces were counted by CFU x g(-1) though dilution plate method. And genomic DNA of microbes were extracted and amplified by primers of E. coli's 27f and 1492r to get the 16S rDNA, then the restriction endonuclease Hinf was used to digest the 16S rDNA. RESULT: Total bacteria, fungi and actinomyces in 2-year old soil were lower than in 1-year old soil, they decreased 46. 14%, 49. 25%, 31.88% respectively and made the ratio of themselves changed. At the same time, all the 8 soil samples got fine 16S rDNA bands, which were about 1500 bp. And the main bands of most of the samples were found at 1000 bp, but the weak bands of each were different although most bands in the same year samples were more similar than in different year ones. CONCLUSION: It is indicated that the change of soil microbial community may has some relation to the continous cropping barrier of A. lancea.
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