Environmental Science and Pollution Research Pub Date : 2023-03-21 , DOI: 10.1007/s11356-023-26468-6 Lantian Ren 1 , Xingchen Huang 1 , Hongzhi Min 1 , Hong Wang 1 , Yiqing Xie 1 , Haiming Zou 1 , Cece Qiao 1 , Wenge Wu 2
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Exploring the ecological function of potential core bacteria for high-efficiency composting can provide a fundamental understanding of the role of composting bacterial communities. Mushroom residue and kitchen garbage at different ratios (N1: 1/1, N2: 1/2) of dry weight were tested to investigate the key ecological role of the core bacteria responsible for producing mature compost. N1 had a peak temperature of 75.0 °C which was higher than N2 (68.3 °C). Other key composting parameters (carbon to nitrogen ratio (C/N) and germination index (GI)) also indicated that N1 achieved higher compost maturity. Rice seedlings experiments also further validated this conclusion. Putative key bacterial taxa (Thermobifida, Luteimonasd, Bacillus, etc.) were positively associated with the GI, indicating a substantial contribution to composting maturity. Co-occurrence network analysis revealed the ecological function of potentially beneficial core bacteria promoted cooperation among the bacterial community. The putative core bacteria in N1 may affect composting efficiency. Our findings reveal the mechanism of potential core bacteria throughout the compost maturity phases.
Graphical Abstract
中文翻译：
原料的不同比例触发与细菌群落共现模式相关的堆肥成熟度
探索用于高效堆肥的潜在核心细菌的生态功能可以提供对堆肥细菌群落作用的基本了解。对不同干重比例（N1：1/1，N2：1/2）的蘑菇渣和厨余垃圾进行了测试，以研究负责产生成熟堆肥的核心细菌的关键生态作用。N1 的峰值温度为 75.0 °C，高于 N2 (68.3 °C)。其他关键堆肥参数（碳氮比 (C/N) 和发芽指数 (GI)）也表明 N1 达到了更高的堆肥成熟度。水稻育苗试验也进一步验证了这一结论。推定的关键细菌类群（Thermobifida , Luteimonasd , Bacillus等.) 与 GI 呈正相关，表明对堆肥成熟度有重大贡献。共现网络分析揭示了潜在有益核心细菌的生态功能促进了细菌群落之间的合作。N1 中假定的核心细菌可能会影响堆肥效率。我们的研究结果揭示了整个堆肥成熟阶段潜在核心细菌的机制。
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