嗜热菌
放线菌门
厚壁菌
蔗渣
半纤维素
蛋白质细菌
木屑
缓生根瘤菌
木质素
食品科学
纤维素酶
微生物
肥料
木质纤维素生物量
生物量(生态学)
微生物种群生物学
髓
制浆造纸工业
生物
生物技术
纤维素
植物
细菌
农学
生态学
生物化学
共生
16S核糖体RNA
遗传学
工程类
作者
Xiaolan Li,Kecheng Li,Yiwu Wang,Yite Huang,Hongxiang Yang,Pengfei Zhu,Qunliang Li
标识
DOI:10.1016/j.biortech.2023.128697
摘要
The goal of this study was to investigate the heterogeneity of thermophilic microorganisms and their lignocellulose-degrading gene diversity during composting. In this study, bagasse pith/dairy manure (BAG) and sawdust/dairy manure (SAW) were used as experimental subjects. The pour plate method indicated that thermophilic bacteria and thermophilic actinobacteria were more culturable than thermophilic fungi. Metagenomics analysis showed that the Actinobacteria, Firmicutes and Proteobacteria were the dominant phyla during composting. In addition, auxiliary activity and glycoside hydrolase families were critical for lignocellulosic degradation, which were found to be more abundant in BAG. As a result, the degradation rates of cellulose, hemicellulose and lignin in BAG (7.36%, 13.99% and 5.68%) were observably higher than those in SAW (6.13%, 12.09% and 2.62%). These findings contribute to understanding how thermophilic microbial communities play a role in the deconstruction of different lignocelluloses and provide a potential strategy to comprehensively utilize the resources of lignocellulosic biomass.
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