农业废弃物堆肥过程中细菌群落对氧化铁纳米颗粒的响应及驱动因素分析
Response of bacterial community to iron oxide nanoparticles during agricultural waste composting and driving factors analysis.
作者信息
Zhang Lihua, Hu Yunlong, Huang Hongli, Ren Liheng, Zhang Jiachao, Yan Binghua, Luo Lin, Liu Jun, Gu Sijia
机构信息
College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China.
College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China.
出版信息
Bioresour Technol. 2022 Feb;345:126530. doi: 10.1016/j.biortech.2021.126530. Epub 2021 Dec 9.
The succession of bacterial communities and their function, and the core microorganisms for water soluble organic carbon (WSC) and organic matter (OM) changes during agricultural waste composting with addition of iron oxide nanomaterials (FeONPs, FeO NPs and FeO NPs) were investigated. Moreover, driving factors for bacterial composition and metabolism were analyzed. Results showed that FeONPs treatments increased the relative abundance of thermophilic microorganisms for OM degradation. Most of the core genera were responsible for decomposition of OM and synthesis of WSC. Additionally, FeONPs promoted the metabolism of amino acids. The most significant factors for dominant genera in control, FeO NPs and FeO NPs group were moisture (62.1%), moisture (62.0%) and OM (58.2%), respectively. For metabolism, the most significant factors in control, FeO NPs and FeO NPs group were temperature (57.2%), NO-N (60.5%), NO-N (62.6%), respectively. The relationships between compost properties, bacterial community and metabolism were changed by FeONPs.
研究了添加氧化铁纳米材料（FeONPs、FeO NPs和FeO NPs）的农业废弃物堆肥过程中细菌群落的演替及其功能，以及水溶性有机碳（WSC）和有机质（OM）变化的核心微生物。此外，分析了细菌组成和代谢的驱动因素。结果表明，FeONPs处理增加了嗜热微生物对OM降解的相对丰度。大多数核心属负责OM的分解和WSC的合成。此外，FeONPs促进了氨基酸的代谢。对照组、FeO NPs组和FeO NPs组中优势属的最显著因素分别是水分（62.1%）、水分（62.0%）和OM（58.2%）。对于代谢，对照组、FeO NPs组和FeO NPs组中最显著的因素分别是温度（57.2%）、NO-N（60.5%）、NO-N（62.6%）。FeONPs改变了堆肥性质、细菌群落和代谢之间的关系。
Zotero 插件