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Title: Sponge-associated bacteria mineralize arsenic and barium on intracellular vesicles

Arsenic and barium are ubiquitous environmental toxins that accumulate in higher trophic-level organisms. Whereas metazoans have detoxifying organs to cope with toxic metals, sponges lack organs but harbour a symbiotic microbiome performing various functions. Here we examine the potential roles of microorganisms in arsenic and barium cycles in the sponge Theonella swinhoei, known to accumulate high levels of these metals. We show that a single sponge symbiotic bacterium, Entotheonella sp., constitutes the arsenic- and barium-accumulating entity within the host. These bacteria mineralize both arsenic and barium on intracellular vesicles. Our results indicate that Entotheonella sp. may act as a detoxifying organ for its host.
Authors:
 [1] ;  [1] ; ORCiD logo [1] ;  [2] ;  [2] ;  [3] ;  [2] ;  [1]
  1. Tel Aviv Univ. (Israel)
  2. Technion-Israel Inst. of Tech., Haifa (Israel)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
Publication Date:
Grant/Contract Number:
AC02-05CH11231
Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 8; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES
OSTI Identifier:
1393124

Keren, Ray, Mayzel, Boaz, Lavy, Adi, Polishchuk, Iryna, Levy, Davide, Fakra, Sirine C., Pokroy, Boaz, and Ilan, Micha. Sponge-associated bacteria mineralize arsenic and barium on intracellular vesicles. United States: N. p., Web. doi:10.1038/ncomms14393.
Keren, Ray, Mayzel, Boaz, Lavy, Adi, Polishchuk, Iryna, Levy, Davide, Fakra, Sirine C., Pokroy, Boaz, & Ilan, Micha. Sponge-associated bacteria mineralize arsenic and barium on intracellular vesicles. United States. doi:10.1038/ncomms14393.
Keren, Ray, Mayzel, Boaz, Lavy, Adi, Polishchuk, Iryna, Levy, Davide, Fakra, Sirine C., Pokroy, Boaz, and Ilan, Micha. 2017. "Sponge-associated bacteria mineralize arsenic and barium on intracellular vesicles". United States. doi:10.1038/ncomms14393. https://www.osti.gov/servlets/purl/1393124.
@article{osti_1393124,
title = {Sponge-associated bacteria mineralize arsenic and barium on intracellular vesicles},
author = {Keren, Ray and Mayzel, Boaz and Lavy, Adi and Polishchuk, Iryna and Levy, Davide and Fakra, Sirine C. and Pokroy, Boaz and Ilan, Micha},
abstractNote = {Arsenic and barium are ubiquitous environmental toxins that accumulate in higher trophic-level organisms. Whereas metazoans have detoxifying organs to cope with toxic metals, sponges lack organs but harbour a symbiotic microbiome performing various functions. Here we examine the potential roles of microorganisms in arsenic and barium cycles in the sponge Theonella swinhoei, known to accumulate high levels of these metals. We show that a single sponge symbiotic bacterium, Entotheonella sp., constitutes the arsenic- and barium-accumulating entity within the host. These bacteria mineralize both arsenic and barium on intracellular vesicles. Our results indicate that Entotheonella sp. may act as a detoxifying organ for its host.},
doi = {10.1038/ncomms14393},
journal = {Nature Communications},
number = ,
volume = 8,
place = {United States},
year = {2017},
month = {2}
}

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