Dynamic changes in and correlations between microbial communities and physicochemical properties during the composting of cattle manure with Penicillium oxalicum

文献类型： 外文期刊

第一作者： Yang, Mengmeng

作者： Yang, Mengmeng;Yang, Fei;He, Shenghu;Yang, Mengmeng;Guo, Yanan;Wang, Jiandong;Liang, Xiaojun;Yang, Mengmeng;Gao, Yunhang;Wang, Mingcheng

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关键词： Penicillium oxalicum; Compost; Cattle manure; Microbial community; Physicochemical factors

期刊名称：BMC MICROBIOLOGY （ 影响因子：4.0； 五年影响因子：4.6 ）

ISSN： 1471-2180

年卷期： 2024 年 24 卷 1 期

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收录情况： SCI

摘要： Background Penicillium oxalicum is an important fungal agent in the composting of cattle manure, but the changes that occur in the microbial community, physicochemical factors, and potential functions of microorganisms at different time points are still unclear. To this end, the dynamic changes occurring in the microbial community and physicochemical factors and their correlations during the composting of cattle manure with Penicillium oxalicum were analysed. Results The results showed that the main phyla observed throughout the study period were Firmicutes, Actinobacteria, Proteobacteria, Bacteroidetes, Halanaerobiaeota, Apicomplexa and Ascomycota. Linear discriminant analysis effect size (LEfSe) illustrated that Chitinophagales and Eurotiomycetes were biomarker species of bacteria and eukaryote in samples from Days 40 and 35, respectively. Bacterial community composition was significantly correlated with temperature and pH, and eukaryotic microorganism community composition was significantly correlated with moisture content and NH4+-N according to redundancy analysis (RDA). The diversity of the microbial communities changed significantly, especially that of the main pathogenic microorganisms, which showed a decreasing trend or even disappeared after composting. Conclusions In conclusion, a combination of high-throughput sequencing and physicochemical analysis was used to identify the drivers of microbial community succession and the composition of functional microbiota during cattle manure composting with Penicillium oxalicum. The results offer a theoretical framework for explaining microecological assembly during cattle manure composting with Penicillium oxalicum.

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