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液体体积和微生物来源对玉米秸秆降解中降解率和微生物群落的影响

Effect of liquid volume and microflora source on degradation rate and microbial community in corn stover degradation.

作者信息

Wang Jingjing, Zhu Dan, Zhao Siqi, Xu Song, Yang Rong, Zhao Wei, Zhang Xiaoxia, Huang Zhiyong

机构信息

Tianjin Key Laboratory for Industrial Biological Systems and Bioprocessing Engineering, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, No. 32, West 7th Avenue, Tianjin Airport Economic Area, Tianjin, 300308, P R China.

National Technology Innovation Center of Synthetic Biology, Tianjin, 300308, China.

出版信息

AMB Express. 2021 Jun 1;11(1):80. doi: 10.1186/s13568-021-01233-5.

DOI:10.1186/s13568-021-01233-5
PMID:34061258
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8169732/
Abstract

Degradation 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.

摘要

降解是农作物秸秆利用的瓶颈。本文从秸秆降解菌群MC1（M）、羊粪（Y）以及M、Y和牛粪的混合物（Q）中筛选出降解玉米秸秆的微生物群落。研究了微生物菌群来源和液体体积（代表溶解氧）对玉米秸秆微生物群落和降解率的影响。结果表明，200 mL液体体积（L2）的降解率和纤维素酶活性显著高于100 mL（L1）。微生物菌群来源对细菌和真菌的多样性、组成及分类群有显著影响。Q和Y的细菌和真菌α多样性高于M。降解率与纤维素酶活性显著相关，但与微生物多样性无关。这表明液体体积对降解率有显著影响，而微生物菌群来源对玉米秸秆降解中的微生物群落有显著影响。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afc8/8169732/98f84a3d2d66/13568_2021_1233_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afc8/8169732/f058269357e8/13568_2021_1233_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afc8/8169732/29adeec9c325/13568_2021_1233_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afc8/8169732/c487b8a9efeb/13568_2021_1233_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afc8/8169732/aca43004f04f/13568_2021_1233_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afc8/8169732/36fb8049c749/13568_2021_1233_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afc8/8169732/98f84a3d2d66/13568_2021_1233_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afc8/8169732/f058269357e8/13568_2021_1233_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afc8/8169732/29adeec9c325/13568_2021_1233_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afc8/8169732/c487b8a9efeb/13568_2021_1233_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afc8/8169732/aca43004f04f/13568_2021_1233_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afc8/8169732/36fb8049c749/13568_2021_1233_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afc8/8169732/98f84a3d2d66/13568_2021_1233_Fig6_HTML.jpg

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