Biological and chemical characteristics of the coral gastric cavity

Agostini, Sylvain; Suzuki, Yuzuru; Higuchi, Tomihiko; Casareto, Beatriz E.; Yoshinaga, Koichi; Nakano, Yoshikatsu; Fujimura, Harutoshi

doi:10.1007/s00338-011-0831-6

Cited by 120 publications

(97 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Contrarily, the low abundant and very diverse taxa detected were more reminiscent of the planktonic marine communities [5,9,15,26,30]. It is remarkable that the three major taxa had been already detected in association with the two ctenophores M. leidyi (M.L) and B. ovata (B.O) (Supplementary Figure S6; [7]), and thus as hypothesized for corals these should be rather specifically associated to the medusa than the occupation by opportunistic bacteria ingested during the feeding process [1]. These organisms may be just saprophytic colonizers of the digestive organ of this jellyfish.…”

Section: Discussionmentioning

confidence: 97%

Prokaryotic microbiota in the digestive cavity of the jellyfish Cotylorhiza tuberculata

Cortés-Lara

Urdiain

Mora-Ruiz

et al. 2015

Systematic and Applied Microbiology

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 97%

Prokaryotic microbiota in the digestive cavity of the jellyfish Cotylorhiza tuberculata

Cortés-Lara

Urdiain

Mora-Ruiz

et al. 2015

Systematic and Applied Microbiology

View full text Add to dashboard Cite

“…Hamdoun and Epel, 2007), epigenetic mechanisms such as DNA methylation (Feil and Fraga, 2012), and/or control of the brooding space (e.g. Agostini et al, 2012) may prepare the larvae, resulting in acclimatization to high temperature and OA upon re-exposure. One mechanism by which positive acclimatization could be achieved in corals is a potential adaptive tradeoff for production of smaller larvae that are more metabolically tuned for their predicted environment.…”

Section: Discussionmentioning

confidence: 99%

Preconditioning in the reef-building coral Pocillopora damicornis and the potential for trans-generational acclimatization in coral larvae under future climate change conditions

Putnam

Gates

2015

Journal of Experimental Biology

193

181

View full text Add to dashboard Cite

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.

show abstract

“…To avoid protons from accumulating in the coral tissue, they are removed and eventually released into seawater . Since the gastric cavity of corals has a lower pH than the external seawater and since the pH is known to decrease in the dark (Agostini et al, 2012) , (2) passive calcium channel (Zoccola et al, 1999;Allemand et al, 2004), (3) active uptake of bicarbonate (Furla et al, 2000), (4) CO 2 diffusion (Sueltemeyer and Rinast, 1996), (5) active calcium transport (Ip et al, 1991;Zoccola et al, 2004), (6) active bicarbonate transport (Furla et al, 2000), (7) CO 2 diffusion (Sueltemeyer and Rinast, 1996), (8) aragonite precipitation (Burton and Walter, 1990), (9) photosynthesis and respiration (Al-Horani et al, 2003).…”

Section: Model Descriptionmentioning

confidence: 99%

Modelling coral polyp calcification in relation to ocean acidification

Hohn

Merico

2012

Biogeosciences

View full text Add to dashboard Cite

Abstract. Rising atmospheric CO 2 concentrations due to anthropogenic emissions induce changes in the carbonate chemistry of the oceans and, ultimately, a drop in ocean pH. This acidification process can harm calcifying organisms like coccolithophores, molluscs, echinoderms, and corals. It is expected that ocean acidification in combination with other anthropogenic stressors will cause a severe decline in coral abundance by the end of this century, with associated disastrous effects on reef ecosystems. Despite the growing importance of the topic, little progress has been made with respect to modelling the impact of acidification on coral calcification. Here we present a model for a coral polyp that simulates the carbonate system in four different compartments: the seawater, the polyp tissue, the coelenteron, and the calcifying fluid. Precipitation of calcium carbonate takes place in the metabolically controlled calcifying fluid beneath the polyp tissue. The model is adjusted to a state of activity as observed by direct microsensor measurements in the calcifying fluid. We find that a transport mechanism for bicarbonate is required to supplement carbon into the calcifying fluid because CO 2 diffusion alone is not sufficient to sustain the observed calcification rates. Simulated CO 2 perturbation experiments reveal decreasing calcification rates under elevated pCO 2 despite the strong metabolic control of the calcifying fluid. Diffusion of CO 2 through the tissue into the calcifying fluid increases with increasing seawater pCO 2 , leading to decreased aragonite saturation in the calcifying fluid. Our modelling study provides important insights into the complexity of the calcification process at the organism level and helps to quantify the effect of ocean acidification on corals.

show abstract

Biological and chemical characteristics of the coral gastric cavity

Cited by 120 publications

References 39 publications

Prokaryotic microbiota in the digestive cavity of the jellyfish Cotylorhiza tuberculata

Prokaryotic microbiota in the digestive cavity of the jellyfish Cotylorhiza tuberculata

Preconditioning in the reef-building coral Pocillopora damicornis and the potential for trans-generational acclimatization in coral larvae under future climate change conditions

Modelling coral polyp calcification in relation to ocean acidification

Contact Info

Product

Resources

About