A complex life cycle in a warming planet: gene expression in thermally stressed sponges

Webster, Nicole S.; Pantile, Raffaella; Botté, Emmanuelle S.; Abdo, David; Andreakis, Nikos; Whalan, Steve W

doi:10.1111/mec.12213

Cited by 59 publications

(55 citation statements)

References 62 publications

(82 reference statements)

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“…This is in contrast to observations in adults of the Great Barrier Reef sponge, R . odorabile , where both Hsp90 and ubiquitin expression were downregulated under thermal stress [9]. This difference in response may indicate that R .…”

Section: Resultsmentioning

confidence: 99%

“…For example, adult colonies of R . odorabile were found to be highly sensitive to thermal stress at 32°C [9] while severe sponge die-off due to cyanobacterial decay was triggered by elevated temperatures in the Mediterranean sea [13]. Therefore, it is important to recognize that different sponge species may have variable responses to environmental perturbations, specifically to thermal stress.…”

Section: Introductionmentioning

confidence: 99%

“…Expression profiling by multiplexed reverse-transcription quantitative PCR (mRT-qPCR) showed that R . odorabile larvae are remarkably able to withstand seawater temperatures up to 9°C above normal [9]. The apparent resilience of some sponge species and the sensitivity of others highlights the need to understand the genomic basis of sponge responses to environmental stressors and how they are able to adapt to rapidly changing ocean conditions.…”

Section: Introductionmentioning

confidence: 99%

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Gene Expression Dynamics Accompanying the Sponge Thermal Stress Response

Guzman

Conaco

2016

PLoS ONE

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Marine sponges are important members of coral reef ecosystems. Thus, their responses to changes in ocean chemistry and environmental conditions, particularly to higher seawater temperatures, will have potential impacts on the future of these reefs. To better understand the sponge thermal stress response, we investigated gene expression dynamics in the shallow water sponge, Haliclona tubifera (order Haplosclerida, class Demospongiae), subjected to elevated temperature. Using high-throughput transcriptome sequencing, we show that these conditions result in the activation of various processes that interact to maintain cellular homeostasis. Short-term thermal stress resulted in the induction of heat shock proteins, antioxidants, and genes involved in signal transduction and innate immunity pathways. Prolonged exposure to thermal stress affected the expression of genes involved in cellular damage repair, apoptosis, signaling and transcription. Interestingly, exposure to sublethal temperatures may improve the ability of the sponge to mitigate cellular damage under more extreme stress conditions. These insights into the potential mechanisms of adaptation and resilience of sponges contribute to a better understanding of sponge conservation status and the prediction of ecosystem trajectories under future climate conditions.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Gene Expression Dynamics Accompanying the Sponge Thermal Stress Response

Guzman

Conaco

2016

PLoS ONE

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“…These climate effects are particularly evident for sessile invertebrate species, which often exhibit narrow ranges of thermal tolerance 5–7 . Shallow polar seas, although less well studied, are also susceptible to elevated SST 8–10 .…”

Section: Introductionmentioning

confidence: 99%

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

Strand

Whalan

Webster

et al. 2017

Sci Rep

Self Cite

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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.

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“…However, an extra effort is needed to make progress on fundamental ecological issues such as the role of sponge symbioses in population dynamics and community organization (Bell et al 2013, Webster et al 2013a). This mini-review also highlights some research topics, including climate change, disease, and evolutionary and functional issues that we believe deserve further attention and will increase awareness and importance of chemical and microbial ecology within the broader field of ecology.…”

Section: Sponge Chemical and Microbial Ecology: Past Present And Futurementioning

confidence: 99%

Publication impact in sponge chemical and microbial ecology

Sacristán-Soriano

Becerro²

2016

Sci. Mar.

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Summary:It is well known that sponges constitute one of the most prevalent groups in marine benthic communities based on their challenging structural organization, abundance and diversity, and their functional roles in natural communities. The evolutionary success of this group may be explained by the close interaction between sponges and microbes, which dates back to the Precambrian era. This particular symbiosis has become a key factor within sponge research and is an emerging topic of two scientific disciplines: chemical and microbial ecology. This mini-review evaluates the influence of these two disciplines on the general scientific community using a series of bibliometric indicators to ensure objectivity. Our analyses showed that, although sponge chemical ecology has a greater overall impact on the scientific community, both disciplines are cited equally and more frequently than expected. Both research areas show a great impact on applied sciences, but the ecological perspectives of sponge chemistry and microbiology may fall outside the interests of a broader ecological audience. Moreover, we highlight some research topics (e.g. effects of environmental stress) that may require further attention. Hence, sponge chemical and microbial ecology have the opportunity to contribute to broader ecological issues in topics that make sponges particularly important, such as symbiosis.Keywords: Porifera research; natural products; microbiology; symbiosis; h-index; bibliometric indicators. Impacto de las publicaciones en ecología química y microbiana de esponjasResumen: Las esponjas constituyen uno de los grupos predominantes en las comunidades bentónicas marinas gracias a su potencial organización estructural, abundancia, diversidad y a las funciones que desempeñan en las comunidades naturales. El éxito evolutivo de este grupo yace en la estrecha interacción con microorganismos que data del Precámbrico. Esta particular simbiosis se ha convertido en un factor clave en la investigación sobre esponjas y está emergiendo en dos campos como el de la ecología química y microbiana. Esta mini-revisión evalúa la influencia de estas dos disciplinas en la comunidad científica utilizando una serie de indicadores bibliométricos para asegurar la objetividad. Nuestro análisis muestra que aunque la ecología química presenta un mayor impacto global, ambos campos son citados de manera similar y con una frecuencia superior a la esperada. Ambas áreas presentan un gran impacto en ciencias aplicadas, pero las perspectivas ecológicas de las dos disciplinas científicas deben quedar fuera de los intereses generales de la comunidad de ecólogos. Además, señalamos algunas áreas (e.g. efectos del estrés ambiental) que necesitarían mayor atención. Por tanto, la ecología química y microbiana de esponjas tienen la oportunidad de contribuir sobre cuestiones de ecología general con temas que las hace particularmente relevantes, como es la simbiosis.Palabras clave: investigación en Porifera; productos naturales; microbiología; simbiosis; índice h; indicad...

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A complex life cycle in a warming planet: gene expression in thermally stressed sponges

Cited by 59 publications

References 62 publications

Gene Expression Dynamics Accompanying the Sponge Thermal Stress Response

Gene Expression Dynamics Accompanying the Sponge Thermal Stress Response

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

Publication impact in sponge chemical and microbial ecology

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