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Beloqui A, Nechitaylo TY, López-Cortés N, Ghazi A, Guazzaroni ME, Polaina J, Strittmatter AW, Reva O, Waliczek A, Yakimov MM, Golyshina OV, Ferrer M, Golyshin PN. Diversity of glycosyl hydrolases from cellulose-depleting communities enriched from casts of two earthworm species. Appl Environ Microbiol 2010; 76:5934-46. [PMID: 20622123 PMCID: PMC2935051 DOI: 10.1128/aem.00902-10] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2010] [Accepted: 07/01/2010] [Indexed: 11/20/2022] Open
Abstract
The guts and casts of earthworms contain microbial assemblages that process large amounts of organic polymeric substrates from plant litter and soil; however, the enzymatic potential of these microbial communities remains largely unexplored. In the present work, we retrieved carbohydrate-modifying enzymes through the activity screening of metagenomic fosmid libraries from cellulose-depleting microbial communities established with the fresh casts of two earthworm species, Aporrectodea caliginosa and Lumbricus terrestris, as inocula. Eight glycosyl hydrolases (GHs) from the A. caliginosa-derived community were multidomain endo-beta-glucanases, beta-glucosidases, beta-cellobiohydrolases, beta-galactosidase, and beta-xylosidases of known GH families. In contrast, two GHs derived from the L. terrestris microbiome had no similarity to any known GHs and represented two novel families of beta-galactosidases/alpha-arabinopyranosidases. Members of these families were annotated in public databases as conserved hypothetical proteins, with one being structurally related to isomerases/dehydratases. This study provides insight into their biochemistry, domain structures, and active-site architecture. The two communities were similar in bacterial composition but significantly different with regard to their eukaryotic inhabitants. Further sequence analysis of fosmids and plasmids bearing the GH-encoding genes, along with oligonucleotide usage pattern analysis, suggested that those apparently originated from Gammaproteobacteria (pseudomonads and Cellvibrio-like organisms), Betaproteobacteria (Comamonadaceae), and Alphaproteobacteria (Rhizobiales).
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Affiliation(s)
- Ana Beloqui
- CSIC, Institute of Catalysis, 28049 Madrid, Spain, HZI-Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany, CSIC, Instituto de Agroquímica y Tecnología de Alimentos, 46980 Valencia, Spain, Eurofins MWG Operon, 85560 Ebersberg, Germany, Department of Biochemistry, University of Pretoria, 0002 Pretoria, South Africa, Istituto per l'Ambiente Marino Costiero, CNR, Messina 98122, Italy, School of Biological Sciences, Bangor University, Gwynedd LL57 2UW, United Kingdom, Centre for Integrated Research in the Rural Environment (CRRE), Aberystwyth University-Bangor University Partnership, Aberystwyth, Ceredigion SY23 3BF, United Kingdom
| | - Taras Y. Nechitaylo
- CSIC, Institute of Catalysis, 28049 Madrid, Spain, HZI-Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany, CSIC, Instituto de Agroquímica y Tecnología de Alimentos, 46980 Valencia, Spain, Eurofins MWG Operon, 85560 Ebersberg, Germany, Department of Biochemistry, University of Pretoria, 0002 Pretoria, South Africa, Istituto per l'Ambiente Marino Costiero, CNR, Messina 98122, Italy, School of Biological Sciences, Bangor University, Gwynedd LL57 2UW, United Kingdom, Centre for Integrated Research in the Rural Environment (CRRE), Aberystwyth University-Bangor University Partnership, Aberystwyth, Ceredigion SY23 3BF, United Kingdom
| | - Nieves López-Cortés
- CSIC, Institute of Catalysis, 28049 Madrid, Spain, HZI-Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany, CSIC, Instituto de Agroquímica y Tecnología de Alimentos, 46980 Valencia, Spain, Eurofins MWG Operon, 85560 Ebersberg, Germany, Department of Biochemistry, University of Pretoria, 0002 Pretoria, South Africa, Istituto per l'Ambiente Marino Costiero, CNR, Messina 98122, Italy, School of Biological Sciences, Bangor University, Gwynedd LL57 2UW, United Kingdom, Centre for Integrated Research in the Rural Environment (CRRE), Aberystwyth University-Bangor University Partnership, Aberystwyth, Ceredigion SY23 3BF, United Kingdom
| | - Azam Ghazi
- CSIC, Institute of Catalysis, 28049 Madrid, Spain, HZI-Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany, CSIC, Instituto de Agroquímica y Tecnología de Alimentos, 46980 Valencia, Spain, Eurofins MWG Operon, 85560 Ebersberg, Germany, Department of Biochemistry, University of Pretoria, 0002 Pretoria, South Africa, Istituto per l'Ambiente Marino Costiero, CNR, Messina 98122, Italy, School of Biological Sciences, Bangor University, Gwynedd LL57 2UW, United Kingdom, Centre for Integrated Research in the Rural Environment (CRRE), Aberystwyth University-Bangor University Partnership, Aberystwyth, Ceredigion SY23 3BF, United Kingdom
| | - María-Eugenia Guazzaroni
- CSIC, Institute of Catalysis, 28049 Madrid, Spain, HZI-Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany, CSIC, Instituto de Agroquímica y Tecnología de Alimentos, 46980 Valencia, Spain, Eurofins MWG Operon, 85560 Ebersberg, Germany, Department of Biochemistry, University of Pretoria, 0002 Pretoria, South Africa, Istituto per l'Ambiente Marino Costiero, CNR, Messina 98122, Italy, School of Biological Sciences, Bangor University, Gwynedd LL57 2UW, United Kingdom, Centre for Integrated Research in the Rural Environment (CRRE), Aberystwyth University-Bangor University Partnership, Aberystwyth, Ceredigion SY23 3BF, United Kingdom
| | - Julio Polaina
- CSIC, Institute of Catalysis, 28049 Madrid, Spain, HZI-Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany, CSIC, Instituto de Agroquímica y Tecnología de Alimentos, 46980 Valencia, Spain, Eurofins MWG Operon, 85560 Ebersberg, Germany, Department of Biochemistry, University of Pretoria, 0002 Pretoria, South Africa, Istituto per l'Ambiente Marino Costiero, CNR, Messina 98122, Italy, School of Biological Sciences, Bangor University, Gwynedd LL57 2UW, United Kingdom, Centre for Integrated Research in the Rural Environment (CRRE), Aberystwyth University-Bangor University Partnership, Aberystwyth, Ceredigion SY23 3BF, United Kingdom
| | - Axel W. Strittmatter
- CSIC, Institute of Catalysis, 28049 Madrid, Spain, HZI-Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany, CSIC, Instituto de Agroquímica y Tecnología de Alimentos, 46980 Valencia, Spain, Eurofins MWG Operon, 85560 Ebersberg, Germany, Department of Biochemistry, University of Pretoria, 0002 Pretoria, South Africa, Istituto per l'Ambiente Marino Costiero, CNR, Messina 98122, Italy, School of Biological Sciences, Bangor University, Gwynedd LL57 2UW, United Kingdom, Centre for Integrated Research in the Rural Environment (CRRE), Aberystwyth University-Bangor University Partnership, Aberystwyth, Ceredigion SY23 3BF, United Kingdom
| | - Oleg Reva
- CSIC, Institute of Catalysis, 28049 Madrid, Spain, HZI-Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany, CSIC, Instituto de Agroquímica y Tecnología de Alimentos, 46980 Valencia, Spain, Eurofins MWG Operon, 85560 Ebersberg, Germany, Department of Biochemistry, University of Pretoria, 0002 Pretoria, South Africa, Istituto per l'Ambiente Marino Costiero, CNR, Messina 98122, Italy, School of Biological Sciences, Bangor University, Gwynedd LL57 2UW, United Kingdom, Centre for Integrated Research in the Rural Environment (CRRE), Aberystwyth University-Bangor University Partnership, Aberystwyth, Ceredigion SY23 3BF, United Kingdom
| | - Agnes Waliczek
- CSIC, Institute of Catalysis, 28049 Madrid, Spain, HZI-Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany, CSIC, Instituto de Agroquímica y Tecnología de Alimentos, 46980 Valencia, Spain, Eurofins MWG Operon, 85560 Ebersberg, Germany, Department of Biochemistry, University of Pretoria, 0002 Pretoria, South Africa, Istituto per l'Ambiente Marino Costiero, CNR, Messina 98122, Italy, School of Biological Sciences, Bangor University, Gwynedd LL57 2UW, United Kingdom, Centre for Integrated Research in the Rural Environment (CRRE), Aberystwyth University-Bangor University Partnership, Aberystwyth, Ceredigion SY23 3BF, United Kingdom
| | - Michail M. Yakimov
- CSIC, Institute of Catalysis, 28049 Madrid, Spain, HZI-Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany, CSIC, Instituto de Agroquímica y Tecnología de Alimentos, 46980 Valencia, Spain, Eurofins MWG Operon, 85560 Ebersberg, Germany, Department of Biochemistry, University of Pretoria, 0002 Pretoria, South Africa, Istituto per l'Ambiente Marino Costiero, CNR, Messina 98122, Italy, School of Biological Sciences, Bangor University, Gwynedd LL57 2UW, United Kingdom, Centre for Integrated Research in the Rural Environment (CRRE), Aberystwyth University-Bangor University Partnership, Aberystwyth, Ceredigion SY23 3BF, United Kingdom
| | - Olga V. Golyshina
- CSIC, Institute of Catalysis, 28049 Madrid, Spain, HZI-Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany, CSIC, Instituto de Agroquímica y Tecnología de Alimentos, 46980 Valencia, Spain, Eurofins MWG Operon, 85560 Ebersberg, Germany, Department of Biochemistry, University of Pretoria, 0002 Pretoria, South Africa, Istituto per l'Ambiente Marino Costiero, CNR, Messina 98122, Italy, School of Biological Sciences, Bangor University, Gwynedd LL57 2UW, United Kingdom, Centre for Integrated Research in the Rural Environment (CRRE), Aberystwyth University-Bangor University Partnership, Aberystwyth, Ceredigion SY23 3BF, United Kingdom
| | - Manuel Ferrer
- CSIC, Institute of Catalysis, 28049 Madrid, Spain, HZI-Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany, CSIC, Instituto de Agroquímica y Tecnología de Alimentos, 46980 Valencia, Spain, Eurofins MWG Operon, 85560 Ebersberg, Germany, Department of Biochemistry, University of Pretoria, 0002 Pretoria, South Africa, Istituto per l'Ambiente Marino Costiero, CNR, Messina 98122, Italy, School of Biological Sciences, Bangor University, Gwynedd LL57 2UW, United Kingdom, Centre for Integrated Research in the Rural Environment (CRRE), Aberystwyth University-Bangor University Partnership, Aberystwyth, Ceredigion SY23 3BF, United Kingdom
| | - Peter N. Golyshin
- CSIC, Institute of Catalysis, 28049 Madrid, Spain, HZI-Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany, CSIC, Instituto de Agroquímica y Tecnología de Alimentos, 46980 Valencia, Spain, Eurofins MWG Operon, 85560 Ebersberg, Germany, Department of Biochemistry, University of Pretoria, 0002 Pretoria, South Africa, Istituto per l'Ambiente Marino Costiero, CNR, Messina 98122, Italy, School of Biological Sciences, Bangor University, Gwynedd LL57 2UW, United Kingdom, Centre for Integrated Research in the Rural Environment (CRRE), Aberystwyth University-Bangor University Partnership, Aberystwyth, Ceredigion SY23 3BF, United Kingdom
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