Cited by 1,319Biofuel production and bioconversionAnaerobic Digestion and Biogas ProductionGenomics and Phylogenetic Studies

Metagenomic discovery of biomass-degrading genes and genomes from cow rumen

Hess, Matthias, Sczyrba, Alexander, Egan, Rob, Kim, Tae-Wan, Chokhawala, Harshal, Schroth, Gary, Luo, Shujun, Clark, Douglas S. +9 more·2011·Science

Abstract

The paucity of enzymes that efficiently deconstruct plant polysaccharides represents a major bottleneck for industrial-scale conversion of cellulosic biomass into biofuels. Cow rumen microbes specialize in degradation of cellulosic plant material, but most members of this complex community resist cultivation. To characterize biomass-degrading genes and genomes, we sequenced and analyzed 268 gigabases of metagenomic DNA from microbes adherent to plant fiber incubated in cow rumen. From these data, we identified 27,755 putative carbohydrate-active genes and expressed 90 candidate proteins, of which 57% were enzymatically active against cellulosic substrates. We also assembled 15 uncultured microbial genomes, which were validated by complementary methods including single-cell genome sequencing. These data sets provide a substantially expanded catalog of genes and genomes participating in the deconstruction of cellulosic biomass.

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Crossref · 10.1126/science.1200387

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Authors
Hess, M., Sczyrba, A., Egan, R., Kim, T.-W., Chokhawala, H., Schroth, G., Luo, S., Clark, D. S., Chen, F., Zhang, T., Mackie, R. I., Pennacchio, L. A., Tringe, S. G., Visel, A., Woyke, T., Wang, Z., & Rubin, E. M.
Affiliations
  • Lawrence Berkeley National Laboratory (US)
  • Energy Biosciences Institute (US)
  • Illumina (United States) (US)
  • University of Illinois Urbana-Champaign (US)
Venue
Science
Published
2011-01-28
Volume
331
Issue
6016
Pages
463-467
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W1969346416
Cited by
1,319
References
30
Citations by year
2026: 39 · 2025: 53 · 2024: 53 · 2023: 51 · 2022: 81 · 2021: 78 · 2020: 80 · 2019: 90 · 2018: 79 · 2017: 115 · 2016: 91 · 2015: 107 · 2014: 112 · 2013: 127 · 2012: 110
FWCI
75.85
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • PUB – Publications at Bielefeld University (Bielefeld University) (submittedVersion)
Funders
  • Office of Science (DE-AC02-05CH112)
  • U.S. Department of Energy (DE-AC02-05CH11231)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
  • Physical Sciences › Engineering › Building and Construction › Anaerobic Digestion and Biogas Production
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
Keywords
rumen microbiota, carbohydrate-active enzymes, plant polysaccharide degradation, metagenomics, single-cell DNA sequencing
MeSH terms
Amino Acid Sequence, Animals, Bacteria, Bacterial Proteins, Cattle, Cellulase, Cellulose, Genes, Bacterial, Poaceae, Molecular Sequence Data, Rumen, Genome, Bacterial, Sequence Analysis, DNA, Biomass, Cellulose 1,4-beta-Cellobiosidase, Cellulases, Carbohydrate Metabolism, Metagenome, Metagenomics, Molecular Sequence Annotation

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