Differences in the Soil Bacterial Communities Under Organic Farming and Conventional Farming Modes Revealed by 16S rDNA Sequencing

文献类型： 外文期刊

第一作者： Yang, Yazhen

作者： Yang, Yazhen;Wu, Meiyan;Zhang, Huaisheng;Zhu, Jianqiang;Yang, Yazhen;Fang, Mingke;Li, Huizhen

作者机构：

关键词： Soil; Bacterial Community; Organic Farming; 16S rDNA Sequencing

期刊名称：JOURNAL OF BIOBASED MATERIALS AND BIOENERGY （ 影响因子：1.126； 五年影响因子：0.83 ）

ISSN： 1556-6560

年卷期： 2021 年 15 卷 1 期

页码：

收录情况： SCI

摘要： Soil bacterial communities are different in various agricultural ecosystems. To assess the differences in soil bacterial communities between organic and conventional farming modes, high-throughput Illumina MiSeq sequencing was conducted. A total of 3, 919 operational taxonomic units were identified and classified as 26 phyla, 42 classes, 78 orders, 120 families, 281 genera, and 340 known species. The histogram of the microbial species distribution at genera levels showed that Massilia and Lysobacter increased quickly in soil under organic farming mode. Analysis of soil bacterial diversity showed that the soil under the organic farming had a greater bacterial diversity. Linear discriminant analysis effect size analysis showed that the major bacterial groups identified in the soil sample CK1 (2015.4) and CK6 (2017.10) under conventional farming mode were largely different from those in the soil sample O6 (2017.10) under organic farming mode. Redundancy analysis demonstrated that available nitrogen was the most important factor regulating bacterial composition under the organic farming mode. Massilia, Pseudomonas, Lysobacter and Pseudarthrobacter abundances showed a strong positive correlation with the content of available nitrogen. The results provided an important reference for the utilization of soil microorganisms under the organic farming mode.

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