Multi-heme cytochromes provide a pathway for survival in energy-limited environments

Deng, X., Dohmae, N., Nealson, K. H., Hashimoto, K., Okamoto, A.
American Association for the Advancement of Science (AAAS)
Published 2018
Publication Date:
2018-02-17
Publisher:
American Association for the Advancement of Science (AAAS)
Electronic ISSN:
2375-2548
Topics:
Natural Sciences in General
Published by:
_version_ 1836398799868657664
autor Deng, X., Dohmae, N., Nealson, K. H., Hashimoto, K., Okamoto, A.
beschreibung Bacterial reduction of oxidized sulfur species (OSS) is critical for energy production in anaerobic marine subsurfaces. In organic-poor sediments, H 2 has been considered as a major energy source for bacterial respiration. We identified outer-membrane cytochromes (OMCs) that are broadly conserved in sediment OSS-respiring bacteria and enable cells to directly use electrons from insoluble minerals via extracellular electron transport. Biochemical, transcriptomic, and microscopic analyses revealed that the identified OMCs were highly expressed on the surface of cells and nanofilaments in response to electron donor limitation. This electron uptake mechanism provides sufficient but minimum energy to drive the reduction of sulfate and other OSS. These results suggest a widespread mechanism for survival of OSS-respiring bacteria via electron uptake from solid minerals in energy-poor marine sediments.
citation_standardnr 6168050
datenlieferant ipn_articles
feed_id 228416
feed_publisher American Association for the Advancement of Science (AAAS)
feed_publisher_url http://www.aaas.org/
insertion_date 2018-02-17
journaleissn 2375-2548
publikationsjahr_anzeige 2018
publikationsjahr_facette 2018
publikationsjahr_intervall 7984:2015-2019
publikationsjahr_sort 2018
publisher American Association for the Advancement of Science (AAAS)
quelle Science Advances
relation http://advances.sciencemag.org/cgi/content/short/4/2/eaao5682?rss=1
search_space articles
shingle_author_1 Deng, X., Dohmae, N., Nealson, K. H., Hashimoto, K., Okamoto, A.
shingle_author_2 Deng, X., Dohmae, N., Nealson, K. H., Hashimoto, K., Okamoto, A.
shingle_author_3 Deng, X., Dohmae, N., Nealson, K. H., Hashimoto, K., Okamoto, A.
shingle_author_4 Deng, X., Dohmae, N., Nealson, K. H., Hashimoto, K., Okamoto, A.
shingle_catch_all_1 Multi-heme cytochromes provide a pathway for survival in energy-limited environments
Bacterial reduction of oxidized sulfur species (OSS) is critical for energy production in anaerobic marine subsurfaces. In organic-poor sediments, H 2 has been considered as a major energy source for bacterial respiration. We identified outer-membrane cytochromes (OMCs) that are broadly conserved in sediment OSS-respiring bacteria and enable cells to directly use electrons from insoluble minerals via extracellular electron transport. Biochemical, transcriptomic, and microscopic analyses revealed that the identified OMCs were highly expressed on the surface of cells and nanofilaments in response to electron donor limitation. This electron uptake mechanism provides sufficient but minimum energy to drive the reduction of sulfate and other OSS. These results suggest a widespread mechanism for survival of OSS-respiring bacteria via electron uptake from solid minerals in energy-poor marine sediments.
Deng, X., Dohmae, N., Nealson, K. H., Hashimoto, K., Okamoto, A.
American Association for the Advancement of Science (AAAS)
2375-2548
23752548
shingle_catch_all_2 Multi-heme cytochromes provide a pathway for survival in energy-limited environments
Bacterial reduction of oxidized sulfur species (OSS) is critical for energy production in anaerobic marine subsurfaces. In organic-poor sediments, H 2 has been considered as a major energy source for bacterial respiration. We identified outer-membrane cytochromes (OMCs) that are broadly conserved in sediment OSS-respiring bacteria and enable cells to directly use electrons from insoluble minerals via extracellular electron transport. Biochemical, transcriptomic, and microscopic analyses revealed that the identified OMCs were highly expressed on the surface of cells and nanofilaments in response to electron donor limitation. This electron uptake mechanism provides sufficient but minimum energy to drive the reduction of sulfate and other OSS. These results suggest a widespread mechanism for survival of OSS-respiring bacteria via electron uptake from solid minerals in energy-poor marine sediments.
Deng, X., Dohmae, N., Nealson, K. H., Hashimoto, K., Okamoto, A.
American Association for the Advancement of Science (AAAS)
2375-2548
23752548
shingle_catch_all_3 Multi-heme cytochromes provide a pathway for survival in energy-limited environments
Bacterial reduction of oxidized sulfur species (OSS) is critical for energy production in anaerobic marine subsurfaces. In organic-poor sediments, H 2 has been considered as a major energy source for bacterial respiration. We identified outer-membrane cytochromes (OMCs) that are broadly conserved in sediment OSS-respiring bacteria and enable cells to directly use electrons from insoluble minerals via extracellular electron transport. Biochemical, transcriptomic, and microscopic analyses revealed that the identified OMCs were highly expressed on the surface of cells and nanofilaments in response to electron donor limitation. This electron uptake mechanism provides sufficient but minimum energy to drive the reduction of sulfate and other OSS. These results suggest a widespread mechanism for survival of OSS-respiring bacteria via electron uptake from solid minerals in energy-poor marine sediments.
Deng, X., Dohmae, N., Nealson, K. H., Hashimoto, K., Okamoto, A.
American Association for the Advancement of Science (AAAS)
2375-2548
23752548
shingle_catch_all_4 Multi-heme cytochromes provide a pathway for survival in energy-limited environments
Bacterial reduction of oxidized sulfur species (OSS) is critical for energy production in anaerobic marine subsurfaces. In organic-poor sediments, H 2 has been considered as a major energy source for bacterial respiration. We identified outer-membrane cytochromes (OMCs) that are broadly conserved in sediment OSS-respiring bacteria and enable cells to directly use electrons from insoluble minerals via extracellular electron transport. Biochemical, transcriptomic, and microscopic analyses revealed that the identified OMCs were highly expressed on the surface of cells and nanofilaments in response to electron donor limitation. This electron uptake mechanism provides sufficient but minimum energy to drive the reduction of sulfate and other OSS. These results suggest a widespread mechanism for survival of OSS-respiring bacteria via electron uptake from solid minerals in energy-poor marine sediments.
Deng, X., Dohmae, N., Nealson, K. H., Hashimoto, K., Okamoto, A.
American Association for the Advancement of Science (AAAS)
2375-2548
23752548
shingle_title_1 Multi-heme cytochromes provide a pathway for survival in energy-limited environments
shingle_title_2 Multi-heme cytochromes provide a pathway for survival in energy-limited environments
shingle_title_3 Multi-heme cytochromes provide a pathway for survival in energy-limited environments
shingle_title_4 Multi-heme cytochromes provide a pathway for survival in energy-limited environments
timestamp 2025-06-30T23:32:50.042Z
titel Multi-heme cytochromes provide a pathway for survival in energy-limited environments
titel_suche Multi-heme cytochromes provide a pathway for survival in energy-limited environments
topic TA-TD
uid ipn_articles_6168050