Abstract
AbstractDegradation is the bottleneck in the utilization of crop straw. In this paper, we screened the microbial consortia degrading corn stover from straw degrading consortia MC1 (M), sheep feces (Y), and mixtures (Q) of M, Y, and cattle feces. The effects of microflora source and liquid volume (representing dissolved oxygen) on the microbial community and degradation rate of corn stover were investigated. The results showed that the degradation rate and cellulase activity of a 200 mL liquid volume (L2) were significantly higher than that of 100 mL (L1). Microflora source had a significant effect on bacterial and fungal diversity, composition and taxa. Q and Y had higher bacterial and fungal α-diversity than that of M. The degradation rate was significantly correlated with cellulase activity but not with microbial diversity. This indicated that liquid volume had a significant effect on degradation rate while microflora source had a significant effect on microbial community in corn stover degradation.
Funder
National Key Research and Development Program of China
Tianjin Synthetic Biotechnology Innovation Capacity Improvement Project
Publisher
Springer Science and Business Media LLC
Subject
Applied Microbiology and Biotechnology,Biophysics
Reference54 articles.
1. Arntzen MO, Bengtsson O, Varnai A, Delogu F, Mathiesen G, Eijsink VGH (2020) Quantitative comparison of the biomass-degrading enzyme repertoires of five filamentous fungi. Sci Rep. https://doi.org/10.1038/s41598-020-75217-z
2. Chu X, Awasthi MK, Liu Y, Cheng Q, Qu J, Sun Y (2021) Studies on the degradation of corn straw by combined bacterial cultures. Bioresour Technol 320:124174. https://doi.org/10.1016/j.biortech.2020.124174
3. Cui Z, Li M, Piao Z, Huang Z, Ishii M, Igarashi Y (2002) Selection of a composite microbial system MC1 with efficient and stability cellulose degradation bacteria and its function. Environ Sci 23:36–39
4. Deng B, Jia J, Ai S, Yan L, Gao Y, Wang Y, Wang W (2017) The screening and diversity of a bacterial community capable of degrading corn straw at 30 ℃. Renew Energ Resour 35:1127–1134
5. Ding CH, Wang X, Li MX (2019) Evaluation of six white-rot fungal pretreatments on corn stover for the production of cellulolytic and ligninolytic enzymes, reducing sugars, and ethanol. Appl Microbiol Biotechnol 103:5641–5652. https://doi.org/10.1007/s00253-019-09884-y
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献