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Host–symbiont combinations dictate the photo-physiological response of reef-building corals to thermal stress
High sea surface temperatures often lead to coral bleaching wherein reef-building corals lose significant numbers of their endosymbiotic dinoflagellates (Symbiodiniaceae). These increasingly frequent bleaching events often result in large scale coral mortality, thereby devasting reef systems through...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6620294/ https://www.ncbi.nlm.nih.gov/pubmed/31292499 http://dx.doi.org/10.1038/s41598-019-46412-4 |
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author | Hoadley, Kenneth D. Lewis, Allison M. Wham, Drew C. Pettay, D. Tye Grasso, Chris Smith, Robin Kemp, Dustin W. LaJeunesse, Todd C. Warner, Mark E. |
author_facet | Hoadley, Kenneth D. Lewis, Allison M. Wham, Drew C. Pettay, D. Tye Grasso, Chris Smith, Robin Kemp, Dustin W. LaJeunesse, Todd C. Warner, Mark E. |
author_sort | Hoadley, Kenneth D. |
collection | PubMed |
description | High sea surface temperatures often lead to coral bleaching wherein reef-building corals lose significant numbers of their endosymbiotic dinoflagellates (Symbiodiniaceae). These increasingly frequent bleaching events often result in large scale coral mortality, thereby devasting reef systems throughout the world. The reef habitats surrounding Palau are ideal for investigating coral responses to climate perturbation, where many inshore bays are subject to higher water temperature as compared with offshore barrier reefs. We examined fourteen physiological traits in response to high temperature across various symbiotic dinoflagellates in four common Pacific coral species, Acropora muricata, Coelastrea aspera, Cyphastrea chalcidicum and Pachyseris rugosa found in both offshore and inshore habitats. Inshore corals were dominated by a single homogenous population of the stress tolerant symbiont Durusdinium trenchii, yet symbiont thermal response and physiology differed significantly across coral species. In contrast, offshore corals harbored specific species of Cladocopium spp. (ITS2 rDNA type-C) yet all experienced similar patterns of photoinactivation and symbiont loss when heated. Additionally, cell volume and light absorption properties increased in heated Cladocopium spp., leading to a greater loss in photo-regulation. While inshore coral temperature response was consistently muted relative to their offshore counterparts, high physiological variability in D. trenchii across inshore corals suggests that bleaching resilience among even the most stress tolerant symbionts is still heavily influenced by their host environment. |
format | Online Article Text |
id | pubmed-6620294 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-66202942019-07-18 Host–symbiont combinations dictate the photo-physiological response of reef-building corals to thermal stress Hoadley, Kenneth D. Lewis, Allison M. Wham, Drew C. Pettay, D. Tye Grasso, Chris Smith, Robin Kemp, Dustin W. LaJeunesse, Todd C. Warner, Mark E. Sci Rep Article High sea surface temperatures often lead to coral bleaching wherein reef-building corals lose significant numbers of their endosymbiotic dinoflagellates (Symbiodiniaceae). These increasingly frequent bleaching events often result in large scale coral mortality, thereby devasting reef systems throughout the world. The reef habitats surrounding Palau are ideal for investigating coral responses to climate perturbation, where many inshore bays are subject to higher water temperature as compared with offshore barrier reefs. We examined fourteen physiological traits in response to high temperature across various symbiotic dinoflagellates in four common Pacific coral species, Acropora muricata, Coelastrea aspera, Cyphastrea chalcidicum and Pachyseris rugosa found in both offshore and inshore habitats. Inshore corals were dominated by a single homogenous population of the stress tolerant symbiont Durusdinium trenchii, yet symbiont thermal response and physiology differed significantly across coral species. In contrast, offshore corals harbored specific species of Cladocopium spp. (ITS2 rDNA type-C) yet all experienced similar patterns of photoinactivation and symbiont loss when heated. Additionally, cell volume and light absorption properties increased in heated Cladocopium spp., leading to a greater loss in photo-regulation. While inshore coral temperature response was consistently muted relative to their offshore counterparts, high physiological variability in D. trenchii across inshore corals suggests that bleaching resilience among even the most stress tolerant symbionts is still heavily influenced by their host environment. Nature Publishing Group UK 2019-07-10 /pmc/articles/PMC6620294/ /pubmed/31292499 http://dx.doi.org/10.1038/s41598-019-46412-4 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Hoadley, Kenneth D. Lewis, Allison M. Wham, Drew C. Pettay, D. Tye Grasso, Chris Smith, Robin Kemp, Dustin W. LaJeunesse, Todd C. Warner, Mark E. Host–symbiont combinations dictate the photo-physiological response of reef-building corals to thermal stress |
title | Host–symbiont combinations dictate the photo-physiological response of reef-building corals to thermal stress |
title_full | Host–symbiont combinations dictate the photo-physiological response of reef-building corals to thermal stress |
title_fullStr | Host–symbiont combinations dictate the photo-physiological response of reef-building corals to thermal stress |
title_full_unstemmed | Host–symbiont combinations dictate the photo-physiological response of reef-building corals to thermal stress |
title_short | Host–symbiont combinations dictate the photo-physiological response of reef-building corals to thermal stress |
title_sort | host–symbiont combinations dictate the photo-physiological response of reef-building corals to thermal stress |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6620294/ https://www.ncbi.nlm.nih.gov/pubmed/31292499 http://dx.doi.org/10.1038/s41598-019-46412-4 |
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