2.50
Hdl Handle:
http://hdl.handle.net/10033/233331
Title:
Genomic analysis of the potential for aromatic compounds biodegradation in Burkholderiales.
Authors:
Pérez-Pantoja, Danilo; Donoso, Raúl; Agulló, Loreine; Córdova, Macarena; Seeger, Michael; Pieper, Dietmar H; González, Bernardo
Abstract:
The relevance of the β-proteobacterial Burkholderiales order in the degradation of a vast array of aromatic compounds, including several priority pollutants, has been largely assumed. In this review, the presence and organization of genes encoding oxygenases involved in aromatics biodegradation in 80 Burkholderiales genomes is analysed. This genomic analysis underscores the impressive catabolic potential of this bacterial lineage, comprising nearly all of the central ring-cleavage pathways reported so far in bacteria and most of the peripheral pathways involved in channelling of a broad diversity of aromatic compounds. The more widespread pathways in Burkholderiales include protocatechuate ortho ring-cleavage, catechol ortho ring-cleavage, homogentisate ring-cleavage and phenylacetyl-CoA ring-cleavage pathways found in at least 60% of genomes analysed. In general, a genus-specific pattern of positional ordering of biodegradative genes is observed in the catabolic clusters of these pathways indicating recent events in its evolutionary history. In addition, a significant bias towards secondary chromosomes, now termed chromids, is observed in the distribution of catabolic genes across multipartite genomes, which is consistent with a genus-specific character. Strains isolated from environmental sources such as soil, rhizosphere, sediment or sludge show a higher content of catabolic genes in their genomes compared with strains isolated from human, animal or plant hosts, but no significant difference is found among Alcaligenaceae, Burkholderiaceae and Comamonadaceae families, indicating that habitat is more of a determinant than phylogenetic origin in shaping aromatic catabolic versatility.
Affiliation:
Center for Advanced Studies in Ecology and Biodiversity, Millennium Nucleus in Plant Functional Genomics, Facultad de Ciencias Biológicas, P. Universidad Católica de Chile, Santiago, Chile.
Citation:
Genomic analysis of the potential for aromatic compounds biodegradation in Burkholderiales. 2012, 14 (5):1091-117 Environ. Microbiol.
Journal:
Environmental microbiology
Issue Date:
May-2012
URI:
http://hdl.handle.net/10033/233331
DOI:
10.1111/j.1462-2920.2011.02613.x
PubMed ID:
22026719
Type:
Article
Language:
en
ISSN:
1462-2920
Appears in Collections:
Publications of RG Mikrobielle Interaktionen und Prozesse (MINP)

Full metadata record

DC FieldValue Language
dc.contributor.authorPérez-Pantoja, Daniloen_GB
dc.contributor.authorDonoso, Raúlen_GB
dc.contributor.authorAgulló, Loreineen_GB
dc.contributor.authorCórdova, Macarenaen_GB
dc.contributor.authorSeeger, Michaelen_GB
dc.contributor.authorPieper, Dietmar Hen_GB
dc.contributor.authorGonzález, Bernardoen_GB
dc.date.accessioned2012-07-12T09:51:32Z-
dc.date.available2012-07-12T09:51:32Z-
dc.date.issued2012-05-
dc.identifier.citationGenomic analysis of the potential for aromatic compounds biodegradation in Burkholderiales. 2012, 14 (5):1091-117 Environ. Microbiol.en_GB
dc.identifier.issn1462-2920-
dc.identifier.pmid22026719-
dc.identifier.doi10.1111/j.1462-2920.2011.02613.x-
dc.identifier.urihttp://hdl.handle.net/10033/233331-
dc.description.abstractThe relevance of the β-proteobacterial Burkholderiales order in the degradation of a vast array of aromatic compounds, including several priority pollutants, has been largely assumed. In this review, the presence and organization of genes encoding oxygenases involved in aromatics biodegradation in 80 Burkholderiales genomes is analysed. This genomic analysis underscores the impressive catabolic potential of this bacterial lineage, comprising nearly all of the central ring-cleavage pathways reported so far in bacteria and most of the peripheral pathways involved in channelling of a broad diversity of aromatic compounds. The more widespread pathways in Burkholderiales include protocatechuate ortho ring-cleavage, catechol ortho ring-cleavage, homogentisate ring-cleavage and phenylacetyl-CoA ring-cleavage pathways found in at least 60% of genomes analysed. In general, a genus-specific pattern of positional ordering of biodegradative genes is observed in the catabolic clusters of these pathways indicating recent events in its evolutionary history. In addition, a significant bias towards secondary chromosomes, now termed chromids, is observed in the distribution of catabolic genes across multipartite genomes, which is consistent with a genus-specific character. Strains isolated from environmental sources such as soil, rhizosphere, sediment or sludge show a higher content of catabolic genes in their genomes compared with strains isolated from human, animal or plant hosts, but no significant difference is found among Alcaligenaceae, Burkholderiaceae and Comamonadaceae families, indicating that habitat is more of a determinant than phylogenetic origin in shaping aromatic catabolic versatility.en_GB
dc.language.isoenen
dc.rightsArchived with thanks to Environmental microbiologyen_GB
dc.titleGenomic analysis of the potential for aromatic compounds biodegradation in Burkholderiales.en
dc.typeArticleen
dc.contributor.departmentCenter for Advanced Studies in Ecology and Biodiversity, Millennium Nucleus in Plant Functional Genomics, Facultad de Ciencias Biológicas, P. Universidad Católica de Chile, Santiago, Chile.en_GB
dc.identifier.journalEnvironmental microbiologyen_GB

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