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  • Title: Earthworms modify microbial community structure and accelerate maize stover decomposition during vermicomposting.
    Author: Chen Y, Zhang Y, Zhang Q, Xu L, Li R, Luo X, Zhang X, Tong J.
    Journal: Environ Sci Pollut Res Int; 2015 Nov; 22(21):17161-70. PubMed ID: 26139410.
    Abstract:
    In the present study, maize stover was vermicomposted with the epigeic earthworm Eisenia fetida. The results showed that, during vermicomposting process, the earthworms promoted decomposition of maize stover. Analysis of microbial communities of the vermicompost by high-throughput pyrosequencing showed more complex bacterial community structure in the substrate treated by the earthworms than that in the control group. The dominant microbial genera in the treatment with the earthworms were Pseudoxanthomonas, Pseudomonas, Arthrobacter, Streptomyces, Cryptococcus, Guehomyces, and Mucor. Compared to the control group, the relative abundance of lignocellulose degradation microorganisms increased. The results indicated that the earthworms modified the structure of microbial communities during vermicomposting process, activated the growth of lignocellulose degradation microorganisms, and triggered the lignocellulose decomposition.
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