Corals and sponges are hotspots of reactive oxygen species in the deep sea.

Autor:	Taenzer L; Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA.; Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA., Wankel SD; Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA., Kapit J; Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA., Pardis WA; Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA., Herrera S; Department of Biological Sciences, Lehigh University, Bethlehem, PA 18015, USA., Auscavitch S; Department of Biology, Boston University, Boston, MA 02215, USA., Grabb KC; Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA.; Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA., Cordes E; Department of Biology, Temple University, Philadelphia, PA 19122, USA., Hansel CM; Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA.
Jazyk:	angličtina
Zdroj:	PNAS nexus [PNAS Nexus] 2023 Nov 15; Vol. 2 (11), pp. pgad398. Date of Electronic Publication: 2023 Nov 15 (Print Publication: 2023).
DOI:	10.1093/pnasnexus/pgad398
Abstrakt:	Reactive oxygen species (ROS) are central to diverse biological processes through which organisms respond to and interact with their surroundings. Yet, a lack of direct measurements limits our understanding of the distribution of ROS in the ocean. Using a recently developed in situ sensor, we show that deep-sea corals and sponges produce the ROS superoxide, revealing that benthic organisms can be sources and hotspots of ROS production in these environments. These findings confirm previous contentions that extracellular superoxide production by corals can be independent of the activity of photosynthetic symbionts. The discovery of deep-sea corals and sponges as sources of ROS has implications for the physiology and ecology of benthic organisms and introduces a previously overlooked suite of redox reactants at depth. (© The Author(s) 2023. Published by Oxford University Press on behalf of National Academy of Sciences.)
Databáze:	MEDLINE
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