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Ammonia determines transcriptional profile of microorganisms in anaerobic digestion

Overview of attention for article published in Brazilian Journal of Microbiology, May 2018
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Title
Ammonia determines transcriptional profile of microorganisms in anaerobic digestion
Published in
Brazilian Journal of Microbiology, May 2018
DOI 10.1016/j.bjm.2018.04.008
Pubmed ID
Authors

Nan Zhang, Huijuan Peng, Yong Li, Wenxiu Yang, Yuneng Zou, Huiguo Duan

Abstract

Anaerobic digestion is important for the management of livestock manure with high ammonia level. Although ammonia effects on anaerobic digestion have been comprehensively studied, the molecular mechanism underlying ammonia inhibition still remains elusive. In this study, based on metatranscriptomic analysis, the transcriptional profile of microbial community in anaerobic digestion under low (1500mgL-1) and high NH4+ (5000mgL-1) concentrations, respectively, were revealed. The results showed that high NH4+ concentrations significantly inhibited methane production but facilitated the accumulations of volatile fatty acids. The expression of methanogenic pathway was significantly inhibited by high NH4+ concentration but most of the other pathways were not significantly affected. Furthermore, the expressions of methanogenic genes which encode acetyl-CoA decarbonylase and methyl-coenzyme M reductase were significantly inhibited by high NH4+ concentration. The inhibition of the co-expressions of the genes which encode acetyl-CoA decarbonylase was observed. Some genes involved in the pathways of aminoacyl-tRNA biosynthesis and ribosome were highly expressed under high NH4+ concentration. Consequently, the ammonia inhibition on anaerobic digestion mainly focused on methanogenic process by suppressing the expressions of genes which encode acetyl-CoA decarbonylase and methyl-coenzyme M reductase. This study improved the accuracy and depth of understanding ammonia inhibition on anaerobic digestion.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 58 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 58 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 9 16%
Student > Ph. D. Student 8 14%
Student > Bachelor 6 10%
Student > Doctoral Student 5 9%
Researcher 5 9%
Other 7 12%
Unknown 18 31%
Readers by discipline Count As %
Engineering 10 17%
Agricultural and Biological Sciences 7 12%
Environmental Science 5 9%
Chemical Engineering 5 9%
Energy 2 3%
Other 5 9%
Unknown 24 41%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 26 June 2018.
All research outputs
#22,767,715
of 25,382,440 outputs
Outputs from Brazilian Journal of Microbiology
#1,047
of 1,377 outputs
Outputs of similar age
#302,279
of 344,093 outputs
Outputs of similar age from Brazilian Journal of Microbiology
#9
of 10 outputs
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So far Altmetric has tracked 1,377 research outputs from this source. They receive a mean Attention Score of 3.6. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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