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Metagenomic discovery of polybrominated diphenyl ether biosynthesis by marine sponges

Journal Article · · Nature Chemical Biology
Naturally produced polybrominated diphenyl ethers (PBDEs) pervade the marine environment and structurally resemble toxic man-made brominated flame retardants. PBDEs bioaccumulate in marine animals and are likely transferred to the human food chain. However, the biogenic basis for PBDE production in one of their most prolific sources, marine sponges of the order Dysideidae, remains unidentified. Here, we report the discovery of PBDE biosynthetic gene clusters within sponge microbiome-associated cyanobacterial endosymbionts by employing an unbiased metagenome mining approach. By expression of PBDE biosynthetic genes in heterologous cyanobacterial hosts, we correlate the structural diversity of naturally produced PBDEs to modifications within PBDE biosynthetic gene clusters in multiple sponge holobionts. Our results establish the genetic and molecular foundation for the production of PBDEs in one of the most abundant natural sources of these molecules, further setting the stage for a metagenomic-based inventory of other PBDE sources in the marine environment.
Research Organization:
Univ. of California, San Diego, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
EE0003373
OSTI ID:
1463262
Journal Information:
Nature Chemical Biology, Journal Name: Nature Chemical Biology Journal Issue: 5 Vol. 13; ISSN 1552-4450
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (31)

Marine Natural Products journal May 2004
Microbial and Functional Biodiversity Patterns in Sponges that Accumulate Bromopyrrole Alkaloids Suggest Horizontal Gene Transfer of Halogenase Genes journal March 2018
Localized production of defence chemicals by intracellular symbionts of Haliclona sponges journal April 2019
A computational framework to explore large-scale biosynthetic diversity journal November 2019
The chemical cue tetrabromopyrrole induces rapid cellular stress and mortality in phytoplankton journal October 2018
Marine natural products journal January 2017
Parallel lives of symbionts and hosts: chemical mutualism in marine animals journal January 2018
Heterologous expression of bacterial natural product biosynthetic pathways journal January 2019
Marine natural products journal January 2019
Sponge-derived polybrominated diphenyl ethers and dibenzo- p -dioxins, irreversible inhibitors of the bacterial α- d -galactosidase journal January 2019
Genetic platforms for heterologous expression of microbial natural products journal January 2019
Marine natural products journal January 2020
Single-bacterial genomics validates rich and varied specialized metabolism of uncultivated Entotheonella sponge symbionts journal February 2018
Chemical Ecology of Marine Sponges: New Opportunities through “-Omics” journal April 2019
antiSMASH 5.0: updates to the secondary metabolite genome mining pipeline journal April 2019
Discovery of a polybrominated aromatic secondary metabolite from a planctomycete points at an ambivalent interaction with its macroalgae host posted_content August 2019
Organohalide respiration in pristine environments: implications for the natural halogen cycle: Organohalide respiration in pristine environments journal December 2017
Diversity and distribution of the bmp gene cluster and its Polybrominated products in the genus Pseudoalteromonas journal February 2019
Characterization of a thaumarchaeal symbiont that drives incomplete nitrification in the tropical sponge Ianthella basta journal July 2019
Comparative Genomics of Cyanobacterial Symbionts Reveals Distinct, Specialized Metabolism in Tropical Dysideidae Sponges journal May 2019
Genome-Guided Identification of Organohalide-Respiring Deltaproteobacteria from the Marine Environment journal December 2018
A genomic view of trophic and metabolic diversity in clade-specific Lamellodysidea sponge microbiomes journal June 2020
Epigenetic Effects of Polybrominated Diphenyl Ethers on Human Health posted_content July 2019
A genomic view of trophic and metabolic diversity in clade-specific Lamellodysidea sponge microbiomes posted_content November 2019
A genomic view of trophic and metabolic diversity in clade-specific Lamellodysidea sponge microbiomes posted_content June 2020
Discovery of a polybrominated aromatic secondary metabolite from a planctomycete points at an ambivalent interaction with its macroalgae host collection January 2019
Heterologous expression of bacterial natural product biosynthetic pathways collection January 2019
Flux, Impact, and Fate of Halogenated Xenobiotic Compounds in the Gut journal July 2018
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Epigenetic Effects of Polybrominated Diphenyl Ethers on Human Health journal July 2019
Identification and Characterization of Mycemycin Biosynthetic Gene Clusters in Streptomyces olivaceus FXJ8.012 and Streptomyces sp. FXJ1.235 journal March 2018

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