The physiological and molecular responses of larvae from the reef-building coral Pocillopora damicornis exposed to near-future increases in temperature and pCO2

Putnam, Hollie M.; Mayfield, Anderson B.; Fan, Tung‐Yung; Chen, C. S.; Gates, Ruth D.

doi:10.1007/s00227-012-2129-9

Cited by 101 publications

(93 citation statements)

References 90 publications

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“…Although it is not possible to fertilize these brooded larvae and raise them in the absence of their parents to fully test this hypothesis, the next closest comparison is exposure of larvae immediately following release. Exposure of P. damicornis larvae to high temperature (29°C, as in this study) and CO 2 (635 µatm) immediately upon release resulted in a decline in larval respiration, not an increase (Putnam et al, 2013). This suggests direct larval acclimatization may not be responsible for our results, although Putnam and co-authors only exposed the larvae for ∼64% of the minimum time that it takes from fertilization to development (∼14 days minimum; Stoddart and Black, 1985), whereas here larvae were exposed for the entire expected duration of fertilization and development.…”

Section: Discussionmentioning

confidence: 54%

Preconditioning in the reef-building coralPocillopora damicornisand the potential for trans-generational acclimatization in coral larvae under future climate change conditions

Putnam

Gates

2015

Journal of Experimental Biology

198

184

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Coral reefs are globally threatened by climate change-related ocean warming and ocean acidification (OA). To date, slow-response mechanisms such as genetic adaptation have been considered the major determinant of coral reef persistence, with little consideration of rapid-response acclimatization mechanisms. These rapid mechanisms such as parental effects that can contribute to trans-generational acclimatization (e.g. epigenetics) have, however, been identified as important contributors to offspring response in other systems. We present the first evidence of parental effects in a cross-generational exposure to temperature and OA in reef-building corals. Here, we exposed adults to high (28.9°C, 805 µatm P CO2 ) or ambient (26.5°C, 417 µatm P CO2 ) temperature and OA treatments during the larval brooding period. Exposure to high treatment negatively affected adult performance, but their larvae exhibited size differences and metabolic acclimation when subsequently re-exposed, unlike larvae from parents exposed to ambient conditions. Understanding the innate capacity corals possess to respond to current and future climatic conditions is essential to reef protection and maintenance. Our results identify that parental effects may have an important role through (1) ameliorating the effects of stress through preconditioning and adaptive plasticity, and/or (2) amplifying the negative parental response through latent effects on future life stages. Whether the consequences of parental effects and the potential for transgenerational acclimatization are beneficial or maladaptive, our work identifies a critical need to expand currently proposed climate change outcomes for corals to further assess rapid response mechanisms that include non-genetic inheritance through parental contributions and classical epigenetic mechanisms.

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Section: Discussionmentioning

confidence: 54%

Preconditioning in the reef-building coralPocillopora damicornisand the potential for trans-generational acclimatization in coral larvae under future climate change conditions

Putnam

Gates

2015

Journal of Experimental Biology

198

184

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“…This will be possible through a better understanding of the biological responses at molecular and physiological levels. Several articles consider responses at the levels of the proteome (Dineshram et al 2013) and the transcriptome (qPCR, Hüning et al 2012;Putnam et al 2012) revealing plasticity at the molecular level, the importance of post-translational processes (Dineshram et al 2013) and identifying pathways that can be impacted. These were complemented by physiological studies in 45 % of the published articles.…”

Section: The Importance Of Relevant End Pointsmentioning

confidence: 99%

A snapshot of ocean acidification research

Dupont

Pörtner

2013

Mar Biol

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This special issue compiles 37 manuscripts investigating the biological impacts and societal relevance of ocean acidification. It includes important considerations regarding experimental design, new methods and how ocean acidification science can contribute to society through education and socioeconomic assessment. Altogether, this special issue constitutes a snapshot of recent ocean acidification research. This paper aims at summarizing the key findings and highlights future challenges and research priorities.

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“…Although other studies have examined the expression patterns of candidate genes in larvae (e.g., Putnam et al, 2013), the full transcriptome provides a global view of all genes involved in a particular stress response. Previous studies examining gene expression in animal and symbiont compartments of adult coral provide an interesting comparison to our results with larvae.…”

Section: Gene Expression In the Coral Animalmentioning

confidence: 99%

“…Physiological plasticity serves to minimize and repair damage in response to changing environmental conditions. A growing body of work describes biological responses of coral larvae to conditions of OA and warming (Putnam et al, 2010(Putnam et al, , 2013Albright and Langdon, 2011;Cumbo et al, 2013a,b;Hofmann, 2014, 2015;Putnam and Gates, 2015;Graham et al, 2017;Rivest et al, 2017). However, it is still unknown how coral larvae are physiologically plastic-what changes are made at the molecular level to preserve function and survival under environmental stress?…”

Section: Introductionmentioning

confidence: 99%

Host and Symbionts in Pocillopora damicornis Larvae Display Different Transcriptomic Responses to Ocean Acidification and Warming

et al. 2018

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As global ocean change progresses, reef-building corals and their early life history stages will rely on physiological plasticity to tolerate new environmental conditions. Larvae from brooding coral species contain algal symbionts upon release, which assist with the energy requirements of dispersal and metamorphosis. Global ocean change threatens the success of larval dispersal and settlement by challenging the performance of the larvae and of the symbiosis. In this study, larvae of the reef-building coral Pocillopora damicornis were exposed to elevated pCO 2 and temperature to examine the performance of the coral and its symbionts in situ and better understand the mechanisms of physiological plasticity and stress tolerance in response to multiple stressors. We generated a de novo holobiont transcriptome containing coral host and algal symbiont transcripts and bioinformatically filtered the assembly into host and symbiont components for downstream analyses. Seventeen coral genes were differentially expressed in response to the combined effects of pCO 2 and temperature. In the symbiont, 89 genes were differentially expressed in response to pCO 2 . Our results indicate that many of the whole-organism (holobiont) responses previously observed for P. damicornis larvae in scenarios of ocean acidification and warming may reflect the physiological capacity of larvae to cope with the environmental changes without expressing additional protective mechanisms. At the holobiont level, the results suggest that the responses of symbionts to future ocean conditions could play a large role in shaping success of coral larval stages.

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The physiological and molecular responses of larvae from the reef-building coral Pocillopora damicornis exposed to near-future increases in temperature and pCO2

Cited by 101 publications

References 90 publications

Preconditioning in the reef-building coralPocillopora damicornisand the potential for trans-generational acclimatization in coral larvae under future climate change conditions

Preconditioning in the reef-building coralPocillopora damicornisand the potential for trans-generational acclimatization in coral larvae under future climate change conditions

A snapshot of ocean acidification research

Host and Symbionts in Pocillopora damicornis Larvae Display Different Transcriptomic Responses to Ocean Acidification and Warming

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