The linkage between community composition and function over the short-term response period in anaerobic digestion systems with food-fermentation industrial wastewater
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
We investigated the short-term dynamics of microbial composition and function in bioreactors
with inocula collected from full-scale and lab-based AD (anaerobic digestion) systems. The
Bray-Curtis dissimilarity of both inocula was approximately 10% of the predicted KEGG
pathway and 40% of the taxonomic composition, and yet resulted in a similar performance in
methane production, implying the variation of community composition may be decoupled from
performance. However, the significant correlation of VFAs with taxonomic variation suggested
that the pathways of anaerobic digestion could be different due to the varying genus. The
predicted function of the significantly varying genus was mostly related to fermentation, which
strengthened the conclusion that most microbial variation occurred within the fermentative
species and led to alternative routes to result in similar methane production in methanogenic
bioreactors. This finding sheds a light on the understanding of AD community regulation,
which depends on the aims to recover intermediates or methane.
with inocula collected from full-scale and lab-based AD (anaerobic digestion) systems. The
Bray-Curtis dissimilarity of both inocula was approximately 10% of the predicted KEGG
pathway and 40% of the taxonomic composition, and yet resulted in a similar performance in
methane production, implying the variation of community composition may be decoupled from
performance. However, the significant correlation of VFAs with taxonomic variation suggested
that the pathways of anaerobic digestion could be different due to the varying genus. The
predicted function of the significantly varying genus was mostly related to fermentation, which
strengthened the conclusion that most microbial variation occurred within the fermentative
species and led to alternative routes to result in similar methane production in methanogenic
bioreactors. This finding sheds a light on the understanding of AD community regulation,
which depends on the aims to recover intermediates or methane.
Date Issued
2021-09-24
Date Acceptance
2021-08-03
Citation
iScience, 2021, 24 (9), pp.1-14
ISSN
2589-0042
Publisher
Cell Press
Start Page
1
End Page
14
Journal / Book Title
iScience
Volume
24
Issue
9
Copyright Statement
© 2021 The Author(s). This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
License URL
Sponsor
Engineering and Physical Sciences Research Council
Biotechnology and Biological Sciences Research Cou
Identifier
https://www.sciencedirect.com/science/article/pii/S2589004221009263?via%3Dihub
Grant Number
EP/N034740/1
RLFOS3007 (BB/K003240/2)
Subjects
Biological sciences
Biomass
Biotechnology
Chemical engineering
Microbiology
Publication Status
Published
Date Publish Online
2021-08-08