DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Functional metagenomics reveals abundant polysaccharide-degrading gene clusters and cellobiose utilization pathways within gut microbiota of a wood-feeding higher termite

Abstract

Plant cell-wall polysaccharides constitute the most abundant but recalcitrant organic carbon source in nature. Microbes residing in the digestive tract of herbivorous bilaterians are particularly efficient at depolymerizing polysaccharides into fermentable sugars and play a significant support role towards their host’s lifestyle. Here, we combine large-scale functional screening of fosmid libraries, shotgun sequencing, and biochemical assays to interrogate the gut microbiota of the wood-feeding “higher” termite Globitermes brachycerastes. A number of putative polysaccharide utilization gene clusters were identified with multiple fibrolytic genes. Our large-scale functional screening of 50,000 fosmid clones resulted in 464 clones demonstrating plant polysaccharide-degrading activities, including 267 endoglucanase-, 24 exoglucanase-, 72 β-glucosidase-, and 101 endoxylanase-positive clones. We sequenced 173 functionally active clones and identified ~219 genes encoding putative carbohydrate-active enzymes (CAZymes) targeting cellulose, hemicellulose and pectin. Further analyses revealed that 68 of 154 contigs encode one or more CAZyme, which includes 35 examples of putative saccharolytic operons, suggesting that clustering of CAZymes is common in termite gut microbial inhabitants. Biochemical characterization of a representative xylanase cluster demonstrated that constituent enzymes exhibited complementary physicochemical properties and saccharolytic capabilities. Furthermore, diverse cellobiose-metabolizing enzymes include β-glucosidases, cellobiose phosphorylases, and phopho-6-β-glucosidases were identified and functionally verified, indicating that the termite gutmore » micro-ecosystem utilizes diverse metabolic pathways to interconnect hydrolysis and central metabolism. Collectively, these results provide an in-depth view of the adaptation and digestive strategies employed by gut microbiota within this tiny-yet-efficient host-associated ecosystem.« less

Authors:
 [1];  [2]; ORCiD logo [2];  [3];  [3];  [4]; ORCiD logo [5];  [3]; ORCiD logo [6];  [2];  [3];  [7]
  1. Chinese Academy of Sciences, Shanghai (China); Zhejiang Academy of Agricultural Sciences, Hangzhou (China)
  2. Univ. of Wisconsin, Madison, WI (United States)
  3. Chinese Academy of Sciences, Shanghai (China)
  4. Chinese Academy of Sciences, Shenzhen (China)
  5. Univ. of Kentucky, Lexington, KY (United States)
  6. Norwegian Univ. of Life Sciences, Ås (Norway)
  7. Chinese Academy of Sciences, Shanghai (China); Tongji Univ. School of Medicine, Shanghai (China)
Publication Date:
Research Org.:
Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1609239
Grant/Contract Number:  
FC02-07ER64494
Resource Type:
Accepted Manuscript
Journal Name:
The ISME Journal
Additional Journal Information:
Journal Volume: 13; Journal Issue: 1; Journal ID: ISSN 1751-7362
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; Environmental Sciences & Ecology; Microbiology; Applied microbiology; Microbial ecology

Citation Formats

Liu, Ning, Li, Hongjie, Chevrette, Marc G., Zhang, Lei, Cao, Lin, Zhou, Haokui, Zhou, Xuguo, Zhou, Zhihua, Pope, Phillip B., Currie, Cameron R., Huang, Yongping, and Wang, Qian. Functional metagenomics reveals abundant polysaccharide-degrading gene clusters and cellobiose utilization pathways within gut microbiota of a wood-feeding higher termite. United States: N. p., 2018. Web. doi:10.1038/s41396-018-0255-1.
Liu, Ning, Li, Hongjie, Chevrette, Marc G., Zhang, Lei, Cao, Lin, Zhou, Haokui, Zhou, Xuguo, Zhou, Zhihua, Pope, Phillip B., Currie, Cameron R., Huang, Yongping, & Wang, Qian. Functional metagenomics reveals abundant polysaccharide-degrading gene clusters and cellobiose utilization pathways within gut microbiota of a wood-feeding higher termite. United States. https://doi.org/10.1038/s41396-018-0255-1
Liu, Ning, Li, Hongjie, Chevrette, Marc G., Zhang, Lei, Cao, Lin, Zhou, Haokui, Zhou, Xuguo, Zhou, Zhihua, Pope, Phillip B., Currie, Cameron R., Huang, Yongping, and Wang, Qian. Thu . "Functional metagenomics reveals abundant polysaccharide-degrading gene clusters and cellobiose utilization pathways within gut microbiota of a wood-feeding higher termite". United States. https://doi.org/10.1038/s41396-018-0255-1. https://www.osti.gov/servlets/purl/1609239.
@article{osti_1609239,
title = {Functional metagenomics reveals abundant polysaccharide-degrading gene clusters and cellobiose utilization pathways within gut microbiota of a wood-feeding higher termite},
author = {Liu, Ning and Li, Hongjie and Chevrette, Marc G. and Zhang, Lei and Cao, Lin and Zhou, Haokui and Zhou, Xuguo and Zhou, Zhihua and Pope, Phillip B. and Currie, Cameron R. and Huang, Yongping and Wang, Qian},
abstractNote = {Plant cell-wall polysaccharides constitute the most abundant but recalcitrant organic carbon source in nature. Microbes residing in the digestive tract of herbivorous bilaterians are particularly efficient at depolymerizing polysaccharides into fermentable sugars and play a significant support role towards their host’s lifestyle. Here, we combine large-scale functional screening of fosmid libraries, shotgun sequencing, and biochemical assays to interrogate the gut microbiota of the wood-feeding “higher” termite Globitermes brachycerastes. A number of putative polysaccharide utilization gene clusters were identified with multiple fibrolytic genes. Our large-scale functional screening of 50,000 fosmid clones resulted in 464 clones demonstrating plant polysaccharide-degrading activities, including 267 endoglucanase-, 24 exoglucanase-, 72 β-glucosidase-, and 101 endoxylanase-positive clones. We sequenced 173 functionally active clones and identified ~219 genes encoding putative carbohydrate-active enzymes (CAZymes) targeting cellulose, hemicellulose and pectin. Further analyses revealed that 68 of 154 contigs encode one or more CAZyme, which includes 35 examples of putative saccharolytic operons, suggesting that clustering of CAZymes is common in termite gut microbial inhabitants. Biochemical characterization of a representative xylanase cluster demonstrated that constituent enzymes exhibited complementary physicochemical properties and saccharolytic capabilities. Furthermore, diverse cellobiose-metabolizing enzymes include β-glucosidases, cellobiose phosphorylases, and phopho-6-β-glucosidases were identified and functionally verified, indicating that the termite gut micro-ecosystem utilizes diverse metabolic pathways to interconnect hydrolysis and central metabolism. Collectively, these results provide an in-depth view of the adaptation and digestive strategies employed by gut microbiota within this tiny-yet-efficient host-associated ecosystem.},
doi = {10.1038/s41396-018-0255-1},
journal = {The ISME Journal},
number = 1,
volume = 13,
place = {United States},
year = {Thu Aug 16 00:00:00 EDT 2018},
month = {Thu Aug 16 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 63 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Adaptation to herbivory by the Tammar wallaby includes bacterial and glycoside hydrolase profiles different from other herbivores
journal, July 2010

  • Pope, P. B.; Denman, S. E.; Jones, M.
  • Proceedings of the National Academy of Sciences, Vol. 107, Issue 33
  • DOI: 10.1073/pnas.1005297107

eggNOG 4.5: a hierarchical orthology framework with improved functional annotations for eukaryotic, prokaryotic and viral sequences
journal, November 2015

  • Huerta-Cepas, Jaime; Szklarczyk, Damian; Forslund, Kristoffer
  • Nucleic Acids Research, Vol. 44, Issue D1
  • DOI: 10.1093/nar/gkv1248

The Gut Microbiota of Termites: Digesting the Diversity in the Light of Ecology and Evolution
journal, October 2015


Niches of two polysaccharide-degrading Polaribacter isolates from the North Sea during a spring diatom bloom
journal, December 2014

  • Xing, Peng; Hahnke, Richard L.; Unfried, Frank
  • The ISME Journal, Vol. 9, Issue 6
  • DOI: 10.1038/ismej.2014.225

Metabolomic profiling of 13 C-labelled cellulose digestion in a lower termite: insights into gut symbiont function
journal, August 2014

  • Tokuda, Gaku; Tsuboi, Yuuri; Kihara, Kumiko
  • Proceedings of the Royal Society B: Biological Sciences, Vol. 281, Issue 1789
  • DOI: 10.1098/rspb.2014.0990

Hidden cellulases in termites: revision of an old hypothesis
journal, March 2007


Termites as Targets and Models for Biotechnology
journal, January 2015


Comparative aspects of plant cell wall digestion in insects
journal, January 1991


Characterization of a novel thermostable β-glucosidase from a metagenomic library of termite gut
journal, December 2012


Lignocellulose pretreatment in a fungus-cultivating termite
journal, April 2017

  • Li, Hongjie; Yelle, Daniel J.; Li, Chang
  • Proceedings of the National Academy of Sciences, Vol. 114, Issue 18
  • DOI: 10.1073/pnas.1618360114

Symbiosis between Termites and Their Intestinal Protozoa
journal, December 1923

  • Cleveland, L. R.
  • Proceedings of the National Academy of Sciences, Vol. 9, Issue 12
  • DOI: 10.1073/pnas.9.12.424

High-Resolution Analysis of Gut Environment and Bacterial Microbiota Reveals Functional Compartmentation of the Gut in Wood-Feeding Higher Termites (Nasutitermes spp.)
journal, April 2012

  • Köhler, Tim; Dietrich, Carsten; Scheffrahn, Rudolf H.
  • Applied and Environmental Microbiology, Vol. 78, Issue 13
  • DOI: 10.1128/AEM.00683-12

Ninety-nine de novo assembled genomes from the moose (Alces alces) rumen microbiome provide new insights into microbial plant biomass degradation
journal, July 2017

  • Svartström, Olov; Alneberg, Johannes; Terrapon, Nicolas
  • The ISME Journal, Vol. 11, Issue 11
  • DOI: 10.1038/ismej.2017.108

Microbiome of Fungus-Growing Termites: a New Reservoir for Lignocellulase Genes
journal, November 2010

  • Liu, Ning; Yan, Xing; Zhang, Meiling
  • Applied and Environmental Microbiology, Vol. 77, Issue 1
  • DOI: 10.1128/AEM.01521-10

Engineering a high-performance, metagenomic-derived novel xylanase with improved soluble protein yield and thermostability
journal, March 2015


Mixed-Mode Transmission Shapes Termite Gut Community Assemblies
journal, July 2018


Genomic Analysis Reveals Multiple [FeFe] Hydrogenases and Hydrogen Sensors Encoded by Treponemes from the H2-Rich Termite Gut
journal, August 2011


Parallel metatranscriptome analyses of host and symbiont gene expression in the gut of the termite Reticulitermes flavipes
journal, January 2009

  • Tartar, Aurélien; Wheeler, Marsha M.; Zhou, Xuguo
  • Biotechnology for Biofuels, Vol. 2, Issue 1
  • DOI: 10.1186/1754-6834-2-25

Metagenomics of the Svalbard Reindeer Rumen Microbiome Reveals Abundance of Polysaccharide Utilization Loci
journal, June 2012


Analysis of the bovine rumen microbiome reveals a diversity of Sus-like polysaccharide utilization loci from the bacterial phylum Bacteroidetes
journal, January 2014

  • Rosewarne, Carly P.; Pope, Phillip B.; Cheung, Jane L.
  • Journal of Industrial Microbiology & Biotechnology, Vol. 41, Issue 3
  • DOI: 10.1007/s10295-013-1395-y

Dual cellulose-digesting system of the wood-feeding termite, Coptotermes formosanus Shiraki
journal, July 2002

  • Nakashima, K.; Watanabe, H.; Saitoh, H.
  • Insect Biochemistry and Molecular Biology, Vol. 32, Issue 7, p. 777-784
  • DOI: 10.1016/S0965-1748(01)00160-6

Acetogenesis from H 2 plus CO 2 and nitrogen fixation by an endosymbiotic spirochete of a termite-gut cellulolytic protist
journal, May 2015

  • Ohkuma, Moriya; Noda, Satoko; Hattori, Satoshi
  • Proceedings of the National Academy of Sciences, Vol. 112, Issue 33
  • DOI: 10.1073/pnas.1423979112

Complementary symbiont contributions to plant decomposition in a fungus-farming termite
journal, September 2014

  • Poulsen, Michael; Hu, Haofu; Li, Cai
  • Proceedings of the National Academy of Sciences, Vol. 111, Issue 40
  • DOI: 10.1073/pnas.1319718111

The PhyloPythiaS Web Server for Taxonomic Assignment of Metagenome Sequences
journal, June 2012


Purification and properties of Cellvibrio gilvus cellobiose phosphorylase
journal, March 1983

  • Sasaki, T.; Tanaka, T.; Nakagawa, S.
  • Biochemical Journal, Vol. 209, Issue 3
  • DOI: 10.1042/bj2090803

Rampant Host Switching Shaped the Termite Gut Microbiome
journal, February 2018


Proteome insights into the symbiotic relationship between a captive colony of Nasutitermes corniger and its hindgut microbiome
journal, July 2010

  • Burnum, Kristin E.; Callister, Stephen J.; Nicora, Carrie D.
  • The ISME Journal, Vol. 5, Issue 1
  • DOI: 10.1038/ismej.2010.97

Cellulolytic Systems in Insects
journal, January 2010


Gill bacteria enable a novel digestive strategy in a wood-feeding mollusk
journal, November 2014

  • O’Connor, Roberta M.; Fung, Jennifer M.; Sharp, Koty H.
  • Proceedings of the National Academy of Sciences, Vol. 111, Issue 47
  • DOI: 10.1073/pnas.1413110111

Biomass Utilization by Gut Microbiomes
journal, September 2014


Microbial Cellulose Utilization: Fundamentals and Biotechnology
journal, September 2002

  • Lynd, L. R.; Weimer, P. J.; van Zyl, W. H.
  • Microbiology and Molecular Biology Reviews, Vol. 66, Issue 3, p. 506-577
  • DOI: 10.1128/MMBR.66.3.506-577.2002

Regulation of sugar transport and metabolism in lactic acid bacteria
journal, September 1987


Symbiotic digestion of lignocellulose in termite guts
journal, February 2014


The carbohydrate-active enzymes database (CAZy) in 2013
journal, November 2013

  • Lombard, Vincent; Golaconda Ramulu, Hemalatha; Drula, Elodie
  • Nucleic Acids Research, Vol. 42, Issue D1
  • DOI: 10.1093/nar/gkt1178

Acetogenesis from H 2 Plus CO 2 by Spirochetes from Termite Guts
journal, January 1999


Introducing mothur: Open-Source, Platform-Independent, Community-Supported Software for Describing and Comparing Microbial Communities
journal, October 2009

  • Schloss, P. D.; Westcott, S. L.; Ryabin, T.
  • Applied and Environmental Microbiology, Vol. 75, Issue 23, p. 7537-7541
  • DOI: 10.1128/AEM.01541-09

Assembly of 913 microbial genomes from metagenomic sequencing of the cow rumen
journal, February 2018


Metagenomic and functional analysis of hindgut microbiota of a wood-feeding higher termite
journal, November 2007

  • Warnecke, Falk; Luginbühl, Peter; Ivanova, Natalia
  • Nature, Vol. 450, Issue 7169
  • DOI: 10.1038/nature06269

Catechol 2,3-dioxygenase and other meta -cleavage catabolic pathway genes in the ‘anaerobic’ termite gut spirochete Treponema primitia
journal, December 2013

  • Lucey, Kaitlyn S.; Leadbetter, Jared R.
  • Molecular Ecology, Vol. 23, Issue 6
  • DOI: 10.1111/mec.12598

Screening of multimeric β-xylosidases from the gut microbiome of a higher termite, Globitermes brachycerastes
journal, January 2018

  • Liu, Chunyan; Zou, Gen; Yan, Xing
  • International Journal of Biological Sciences, Vol. 14, Issue 6
  • DOI: 10.7150/ijbs.22763

Treponema isoptericolens sp. nov., a novel spirochaete from the hindgut of the termite Incisitermes tabogae
journal, May 2008

  • Droge, S.; Rachel, R.; Radek, R.
  • INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, Vol. 58, Issue 5
  • DOI: 10.1099/ijs.0.64699-0

Hydrolytic and phosphorolytic metabolism of cellobiose by the marine aerobic bacterium Saccharophagus degradans 2-40T
journal, February 2011

  • Zhang, Haitao; Moon, Young Hwan; Watson, Brian J.
  • Journal of Industrial Microbiology & Biotechnology, Vol. 38, Issue 8
  • DOI: 10.1007/s10295-011-0945-4

Microbial β-Glucosidases: Cloning, Properties, and Applications
journal, January 2002

  • Bhatia, Yukti; Mishra, Saroj; Bisaria, V. S.
  • Critical Reviews in Biotechnology, Vol. 22, Issue 4, p. 375-407
  • DOI: 10.1080/07388550290789568

Recognition and Degradation of Plant Cell Wall Polysaccharides by Two Human Gut Symbionts
journal, December 2011


Correlation of cellulase gene expression and cellulolytic activity throughout the gut of the termite Reticulitermes flavipes
journal, June 2007


Reducing the Effects of PCR Amplification and Sequencing Artifacts on 16S rRNA-Based Studies
journal, December 2011


Classifying the bacterial gut microbiota of termites and cockroaches: A curated phylogenetic reference database (DictDb)
journal, October 2015

  • Mikaelyan, Aram; Köhler, Tim; Lampert, Niclas
  • Systematic and Applied Microbiology, Vol. 38, Issue 7
  • DOI: 10.1016/j.syapm.2015.07.004

VizBin - an application for reference-independent visualization and human-augmented binning of metagenomic data
journal, January 2015


Physiology and Nutrition of Treponema primitia, an H2/ CO2-Acetogenic Spirochete from Termite Hindguts
journal, March 2004


Crystal structure and putative function of small Toprim domain-containing protein from Bacillus stearothermophilus
journal, August 2007

  • Řezáčová, Pavlína; Borek, Dominika; Moy, Shiu F.
  • Proteins: Structure, Function, and Bioinformatics, Vol. 70, Issue 2
  • DOI: 10.1002/prot.21511

Genomic Analysis Reveals Multiple [FeFe] Hydrogenases and Hydrogen Sensors Encoded by Treponemes from the H2-Rich Termite Gut
journal, August 2011


Analysis of the bovine rumen microbiome reveals a diversity of Sus-like polysaccharide utilization loci from the bacterial phylum Bacteroidetes
journal, January 2014

  • Rosewarne, Carly P.; Pope, Phillip B.; Cheung, Jane L.
  • Journal of Industrial Microbiology & Biotechnology, Vol. 41, Issue 3
  • DOI: 10.1007/s10295-013-1395-y

Characterization of a novel thermostable β-glucosidase from a metagenomic library of termite gut
journal, December 2012


Mixed-Mode Transmission Shapes Termite Gut Community Assemblies
journal, July 2018


Niches of two polysaccharide-degrading Polaribacter isolates from the North Sea during a spring diatom bloom
journal, December 2014

  • Xing, Peng; Hahnke, Richard L.; Unfried, Frank
  • The ISME Journal, Vol. 9, Issue 6
  • DOI: 10.1038/ismej.2014.225

Metagenomic and functional analysis of hindgut microbiota of a wood-feeding higher termite
journal, November 2007

  • Warnecke, Falk; Luginbühl, Peter; Ivanova, Natalia
  • Nature, Vol. 450, Issue 7169
  • DOI: 10.1038/nature06269

Symbiotic digestion of lignocellulose in termite guts
journal, February 2014


Complementary symbiont contributions to plant decomposition in a fungus-farming termite
journal, September 2014

  • Poulsen, Michael; Hu, Haofu; Li, Cai
  • Proceedings of the National Academy of Sciences, Vol. 111, Issue 40
  • DOI: 10.1073/pnas.1319718111

Gill bacteria enable a novel digestive strategy in a wood-feeding mollusk
journal, November 2014

  • O’Connor, Roberta M.; Fung, Jennifer M.; Sharp, Koty H.
  • Proceedings of the National Academy of Sciences, Vol. 111, Issue 47
  • DOI: 10.1073/pnas.1413110111

Acetogenesis from H 2 plus CO 2 and nitrogen fixation by an endosymbiotic spirochete of a termite-gut cellulolytic protist
journal, May 2015

  • Ohkuma, Moriya; Noda, Satoko; Hattori, Satoshi
  • Proceedings of the National Academy of Sciences, Vol. 112, Issue 33
  • DOI: 10.1073/pnas.1423979112

Metabolomic profiling of 13 C-labelled cellulose digestion in a lower termite: insights into gut symbiont function
journal, August 2014

  • Tokuda, Gaku; Tsuboi, Yuuri; Kihara, Kumiko
  • Proceedings of the Royal Society B: Biological Sciences, Vol. 281, Issue 1789
  • DOI: 10.1098/rspb.2014.0990

Regulation of sugar transport and metabolism in lactic acid bacteria
journal, September 1987


Description of Treponema azotonutricium sp. nov. and Treponema primitia sp. nov., the First Spirochetes Isolated from Termite Guts
journal, March 2004


Reducing the Effects of PCR Amplification and Sequencing Artifacts on 16S rRNA-Based Studies
journal, December 2011