The response of a boreal deep-sea sponge holobiont to acute thermal stress

Abstract Effects of elevated seawater temperatures on deep-water benthos has been poorly studied, despite reports of increased seawater temperature (up to 4 °C over 24 hrs) coinciding with mass mortality events of the sponge Geodia barretti at Tisler Reef, Norway. While the mechanisms driving these...

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Autores principales:	R. Strand, S. Whalan, N. S. Webster, T. Kutti, J. K. H. Fang, H. M. Luter, R. J. Bannister
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/abfa8de9fa624d2ea6d7b5abecaccd58
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spelling	oai:doaj.org-article:abfa8de9fa624d2ea6d7b5abecaccd582021-12-02T16:07:57ZThe response of a boreal deep-sea sponge holobiont to acute thermal stress10.1038/s41598-017-01091-x2045-2322https://doaj.org/article/abfa8de9fa624d2ea6d7b5abecaccd582017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01091-xhttps://doaj.org/toc/2045-2322Abstract Effects of elevated seawater temperatures on deep-water benthos has been poorly studied, despite reports of increased seawater temperature (up to 4 °C over 24 hrs) coinciding with mass mortality events of the sponge Geodia barretti at Tisler Reef, Norway. While the mechanisms driving these mortality events are unclear, manipulative laboratory experiments were conducted to quantify the effects of elevated temperature (up to 5 °C, above ambient levels) on the ecophysiology (respiration rate, nutrient uptake, cellular integrity and sponge microbiome) of G. barretti. No visible signs of stress (tissue necrosis or discolouration) were evident across experimental treatments; however, significant interactive effects of time and treatment on respiration, nutrient production and cellular stress were detected. Respiration rates and nitrogen effluxes doubled in responses to elevated temperatures (11 °C & 12 °C) compared to control temperatures (7 °C). Cellular stress, as measured through lysosomal destabilisation, was 2–5 times higher at elevated temperatures than for control temperatures. However, the microbiome of G. barretti remained stable throughout the experiment, irrespective of temperature treatment. Mortality was not evident and respiration rates returned to pre-experimental levels during recovery. These results suggest other environmental processes, either alone or in combination with elevated temperature, contributed to the mortality of G. barretti at Tisler reef.R. StrandS. WhalanN. S. WebsterT. KuttiJ. K. H. FangH. M. LuterR. J. BannisterNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q R. Strand S. Whalan N. S. Webster T. Kutti J. K. H. Fang H. M. Luter R. J. Bannister The response of a boreal deep-sea sponge holobiont to acute thermal stress
description	Abstract Effects of elevated seawater temperatures on deep-water benthos has been poorly studied, despite reports of increased seawater temperature (up to 4 °C over 24 hrs) coinciding with mass mortality events of the sponge Geodia barretti at Tisler Reef, Norway. While the mechanisms driving these mortality events are unclear, manipulative laboratory experiments were conducted to quantify the effects of elevated temperature (up to 5 °C, above ambient levels) on the ecophysiology (respiration rate, nutrient uptake, cellular integrity and sponge microbiome) of G. barretti. No visible signs of stress (tissue necrosis or discolouration) were evident across experimental treatments; however, significant interactive effects of time and treatment on respiration, nutrient production and cellular stress were detected. Respiration rates and nitrogen effluxes doubled in responses to elevated temperatures (11 °C & 12 °C) compared to control temperatures (7 °C). Cellular stress, as measured through lysosomal destabilisation, was 2–5 times higher at elevated temperatures than for control temperatures. However, the microbiome of G. barretti remained stable throughout the experiment, irrespective of temperature treatment. Mortality was not evident and respiration rates returned to pre-experimental levels during recovery. These results suggest other environmental processes, either alone or in combination with elevated temperature, contributed to the mortality of G. barretti at Tisler reef.
format	article
author	R. Strand S. Whalan N. S. Webster T. Kutti J. K. H. Fang H. M. Luter R. J. Bannister
author_facet	R. Strand S. Whalan N. S. Webster T. Kutti J. K. H. Fang H. M. Luter R. J. Bannister
author_sort	R. Strand
title	The response of a boreal deep-sea sponge holobiont to acute thermal stress
title_short	The response of a boreal deep-sea sponge holobiont to acute thermal stress
title_full	The response of a boreal deep-sea sponge holobiont to acute thermal stress
title_fullStr	The response of a boreal deep-sea sponge holobiont to acute thermal stress
title_full_unstemmed	The response of a boreal deep-sea sponge holobiont to acute thermal stress
title_sort	response of a boreal deep-sea sponge holobiont to acute thermal stress
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/abfa8de9fa624d2ea6d7b5abecaccd58
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The response of a boreal deep-sea sponge holobiont to acute thermal stress

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