Corals and sponges are hotspots of reactive oxygen species in the deep sea
Corals and sponges are hotspots of reactive oxygen species in the deep sea
Date
2023-11-15
Authors
Taenzer, Lina
Wankel, Scott D.
Kapit, Jason
Pardis, William A.
Herrera, Santiago
Auscavitch, Steven R.
Grabb, Kalina C.
Cordes, Erik
Hansel, Colleen M.
Wankel, Scott D.
Kapit, Jason
Pardis, William A.
Herrera, Santiago
Auscavitch, Steven R.
Grabb, Kalina C.
Cordes, Erik
Hansel, Colleen M.
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DOI
10.1093/pnasnexus/pgad398
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Keywords
Deep-sea coral
Reactive oxygen species
Submersible sensor
Superoxide
NOX
Reactive oxygen species
Submersible sensor
Superoxide
NOX
Abstract
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.
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© The Author(s), 2023. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Taenzer, L., Wankel, S., Kapit, J., Pardis, W., Herrera, S., Auscavitch, S., Grabb, K., Cordes, E., & Hansel, C. (2023). Corals and sponges are hotspots of reactive oxygen species in the deep sea. PNAS Nexus, pgad398, https://doi.org/10.1093/pnasnexus/pgad398.
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Taenzer, L., Wankel, S., Kapit, J., Pardis, W., Herrera, S., Auscavitch, S., Grabb, K., Cordes, E., & Hansel, C. (2023). Corals and sponges are hotspots of reactive oxygen species in the deep sea. PNAS Nexus, pgad398.