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Acclimation in intertidal animals reduces potential pathogen load and increases survival following a heatwave

Intertidal animals can experience intense heat during a heatwave, leading to mortality. The causes of death for intertidal animals following heatwaves have often been attributed to a breakdown in physiological processes. This, however, contrasts with research in other animals where heatwave mortalit...

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Autores principales: Scanes, Elliot, Siboni, Nachshon, Rees, Brendon, Seymour, Justin R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10199257/
https://www.ncbi.nlm.nih.gov/pubmed/37213223
http://dx.doi.org/10.1016/j.isci.2023.106813
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author Scanes, Elliot
Siboni, Nachshon
Rees, Brendon
Seymour, Justin R.
author_facet Scanes, Elliot
Siboni, Nachshon
Rees, Brendon
Seymour, Justin R.
author_sort Scanes, Elliot
collection PubMed
description Intertidal animals can experience intense heat during a heatwave, leading to mortality. The causes of death for intertidal animals following heatwaves have often been attributed to a breakdown in physiological processes. This, however, contrasts with research in other animals where heatwave mortality is attributed to existing or opportunistic diseases. We acclimated intertidal oysters to four treatment levels, including an antibiotic treatment, and then exposed all treatments to a 50°C heatwave for 2 h, replicating what can be experienced on Australian shorelines. We found that both acclimation and antibiotics increased survival and reduced the presence of potential pathogens. Non-acclimated oysters had a significant shift in their microbiome, with increasing abundances of bacteria from the Vibrio genera, including known potential pathogens. Our results demonstrate that bacterial infection plays a pivotal role in post-heatwave mortality. We anticipate these findings to inform the management of aquaculture and intertidal habitats as climate change intensifies.
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spelling pubmed-101992572023-05-21 Acclimation in intertidal animals reduces potential pathogen load and increases survival following a heatwave Scanes, Elliot Siboni, Nachshon Rees, Brendon Seymour, Justin R. iScience Article Intertidal animals can experience intense heat during a heatwave, leading to mortality. The causes of death for intertidal animals following heatwaves have often been attributed to a breakdown in physiological processes. This, however, contrasts with research in other animals where heatwave mortality is attributed to existing or opportunistic diseases. We acclimated intertidal oysters to four treatment levels, including an antibiotic treatment, and then exposed all treatments to a 50°C heatwave for 2 h, replicating what can be experienced on Australian shorelines. We found that both acclimation and antibiotics increased survival and reduced the presence of potential pathogens. Non-acclimated oysters had a significant shift in their microbiome, with increasing abundances of bacteria from the Vibrio genera, including known potential pathogens. Our results demonstrate that bacterial infection plays a pivotal role in post-heatwave mortality. We anticipate these findings to inform the management of aquaculture and intertidal habitats as climate change intensifies. Elsevier 2023-05-04 /pmc/articles/PMC10199257/ /pubmed/37213223 http://dx.doi.org/10.1016/j.isci.2023.106813 Text en © 2023 The Author(s) https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Scanes, Elliot
Siboni, Nachshon
Rees, Brendon
Seymour, Justin R.
Acclimation in intertidal animals reduces potential pathogen load and increases survival following a heatwave
title Acclimation in intertidal animals reduces potential pathogen load and increases survival following a heatwave
title_full Acclimation in intertidal animals reduces potential pathogen load and increases survival following a heatwave
title_fullStr Acclimation in intertidal animals reduces potential pathogen load and increases survival following a heatwave
title_full_unstemmed Acclimation in intertidal animals reduces potential pathogen load and increases survival following a heatwave
title_short Acclimation in intertidal animals reduces potential pathogen load and increases survival following a heatwave
title_sort acclimation in intertidal animals reduces potential pathogen load and increases survival following a heatwave
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10199257/
https://www.ncbi.nlm.nih.gov/pubmed/37213223
http://dx.doi.org/10.1016/j.isci.2023.106813
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