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Changes in fatty acid composition in the giant clam Tridacna maxima in response to thermal stress
Temperature can modify membrane fluidity and thus affects cellular functions and physiological activities. This study examines lipid remodelling in the marine symbiotic organism, Tridacna maxima, during a time series of induced thermal stress, with an emphasis on the morphology of their symbiont Sym...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Company of Biologists Ltd
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5087672/ https://www.ncbi.nlm.nih.gov/pubmed/27543058 http://dx.doi.org/10.1242/bio.017921 |
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author | Dubousquet, Vaimiti Gros, Emmanuelle Berteaux-Lecellier, Véronique Viguier, Bruno Raharivelomanana, Phila Bertrand, Cédric Lecellier, Gaël J. |
author_facet | Dubousquet, Vaimiti Gros, Emmanuelle Berteaux-Lecellier, Véronique Viguier, Bruno Raharivelomanana, Phila Bertrand, Cédric Lecellier, Gaël J. |
author_sort | Dubousquet, Vaimiti |
collection | PubMed |
description | Temperature can modify membrane fluidity and thus affects cellular functions and physiological activities. This study examines lipid remodelling in the marine symbiotic organism, Tridacna maxima, during a time series of induced thermal stress, with an emphasis on the morphology of their symbiont Symbiodinium. First, we show that the French Polynesian giant clams harbour an important proportion of saturated fatty acids (SFA), which reflects their tropical location. Second, in contrast to most marine organisms, the total lipid content in giant clams remained constant under stress, though some changes in their composition were shown. Third, the stress-induced changes in fatty acid (FA) diversity were accompanied by an upregulation of genes involved in lipids and ROS pathways. Finally, our microscopic analysis revealed that for the giant clam's symbiont, Symbiodinium, thermal stress led to two sequential cell death processes. Our data suggests that the degradation of Symbiodinium cells could provide an additional source of energy to T. maxima in response to heat stress. |
format | Online Article Text |
id | pubmed-5087672 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | The Company of Biologists Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-50876722016-10-31 Changes in fatty acid composition in the giant clam Tridacna maxima in response to thermal stress Dubousquet, Vaimiti Gros, Emmanuelle Berteaux-Lecellier, Véronique Viguier, Bruno Raharivelomanana, Phila Bertrand, Cédric Lecellier, Gaël J. Biol Open Research Article Temperature can modify membrane fluidity and thus affects cellular functions and physiological activities. This study examines lipid remodelling in the marine symbiotic organism, Tridacna maxima, during a time series of induced thermal stress, with an emphasis on the morphology of their symbiont Symbiodinium. First, we show that the French Polynesian giant clams harbour an important proportion of saturated fatty acids (SFA), which reflects their tropical location. Second, in contrast to most marine organisms, the total lipid content in giant clams remained constant under stress, though some changes in their composition were shown. Third, the stress-induced changes in fatty acid (FA) diversity were accompanied by an upregulation of genes involved in lipids and ROS pathways. Finally, our microscopic analysis revealed that for the giant clam's symbiont, Symbiodinium, thermal stress led to two sequential cell death processes. Our data suggests that the degradation of Symbiodinium cells could provide an additional source of energy to T. maxima in response to heat stress. The Company of Biologists Ltd 2016-08-19 /pmc/articles/PMC5087672/ /pubmed/27543058 http://dx.doi.org/10.1242/bio.017921 Text en © 2016. Published by The Company of Biologists Ltd http://creativecommons.org/licenses/by/3.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed. |
spellingShingle | Research Article Dubousquet, Vaimiti Gros, Emmanuelle Berteaux-Lecellier, Véronique Viguier, Bruno Raharivelomanana, Phila Bertrand, Cédric Lecellier, Gaël J. Changes in fatty acid composition in the giant clam Tridacna maxima in response to thermal stress |
title | Changes in fatty acid composition in the giant clam Tridacna maxima in response to thermal stress |
title_full | Changes in fatty acid composition in the giant clam Tridacna maxima in response to thermal stress |
title_fullStr | Changes in fatty acid composition in the giant clam Tridacna maxima in response to thermal stress |
title_full_unstemmed | Changes in fatty acid composition in the giant clam Tridacna maxima in response to thermal stress |
title_short | Changes in fatty acid composition in the giant clam Tridacna maxima in response to thermal stress |
title_sort | changes in fatty acid composition in the giant clam tridacna maxima in response to thermal stress |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5087672/ https://www.ncbi.nlm.nih.gov/pubmed/27543058 http://dx.doi.org/10.1242/bio.017921 |
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