Heat-shock response and temperature resistance in the deep-sea vent shrimp <i>Rimicaris exoculata</i>

Ravaux, Juliette; Gaill, Françoise; Bris, Nadine Le; Sarradin, Pierre‐Marie; Jollivet, Didier; Shillito, Bruce

doi:10.1242/jeb.00419

Cited by 95 publications

(108 citation statements)

References 31 publications

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“…Th us, sublethal eff ects at moderate temperatures may also be important. For example, a deep-sea vent shrimp ( Rimicaris exoculata ) produces an inducible heat-shock protein (in the hsp70 family) at < 25 ° C 29 . A recent study has also shown that increasing temperature above 25 ° C induces metabolic depression in a vent mussel ( Bathymodiolus azoricus ) 30 .…”

Section: Discussionmentioning

confidence: 99%

Deep-sea hydrothermal vent animals seek cool fluids in a highly variable thermal environment

et al. 2010

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The thermal characteristics of an organism ' s environment affect a multitude of parameters, from biochemical to evolutionary processes. Hydrothermal vents on mid-ocean ridges are created when warm hydrothermal fl uids are ejected from the seafl oor and mixed with cold bottom seawater; many animals thrive along these steep temperature and chemical gradients. Twodimensional temperature maps at vent sites have demonstrated order of magnitude thermal changes over centimetre distances and at time intervals from minutes to hours. To investigate whether animals adapt to this extreme level of environmental variability, we examined differences in the thermal behaviour of mobile invertebrates from aquatic habitats that vary in thermal regime. Vent animals were highly responsive to heat and preferred much cooler fl uids than their upper thermal limits, whereas invertebrates from other aquatic environments risked exposure to warmer temperatures. Avoidance of temperatures well within their tolerated range may allow vent animals to maintain a safety margin against rapid temperature fl uctuations and concomitant toxicity of hydrothermal fl uids.

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Section: Discussionmentioning

confidence: 99%

Deep-sea hydrothermal vent animals seek cool fluids in a highly variable thermal environment

et al. 2010

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“…In the IPOCAMP, incubations with isotopic tracers were carried out in flasks filled till to the top with seawater (SW), whose volume (50 or 250 ml) was chosen according to the treatment duration and number of shrimps to ensure shrimp survival in good physiological condition at the end of the experiment (Shillito et al, 2001;Ravaux et al, 2003). Incorporation of 13 C-and 14 C-bicarbonate by the chemoautotrophic bacteria was tested with different chemical energy sources.…”

Section: Methodsmentioning

confidence: 99%

“…Carbon uptake by a vent shrimp and its bacteria J Ponsard et al bacteria in good physiological condition (Ravaux et al, 2003). Accordingly, Zbinden et al (2008) observed o30% degraded epibionts in re-pressurised shrimps.…”

Section: Carbon Fixation By Bacterial Chemosynthesismentioning

confidence: 99%

Inorganic carbon fixation by chemosynthetic ectosymbionts and nutritional transfers to the hydrothermal vent host-shrimp Rimicaris exoculata

et al. 2012

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The shrimp Rimicaris exoculata dominates several hydrothermal vent ecosystems of the MidAtlantic Ridge and is thought to be a primary consumer harbouring a chemoautotrophic bacterial community in its gill chamber. The aim of the present study was to test current hypotheses concerning the epibiont's chemoautotrophy, and the mutualistic character of this association. Invivo experiments were carried out in a pressurised aquarium with isotope-labelled inorganic carbon (NaH 13 CO 3 and NaH 14 CO 3 ) in the presence of two different electron donors (Na 2 S 2 O 3 and Fe 2 þ ) and with radiolabelled organic compounds ( 14 C-acetate and 3 H-lysine) chosen as potential bacterial substrates and/or metabolic by-products in experiments mimicking transfer of small biomolecules from epibionts to host. The bacterial epibionts were found to assimilate inorganic carbon by chemoautotrophy, but many of them (thick filaments of epsilonproteobacteria) appeared versatile and able to switch between electron donors, including organic compounds (heterotrophic acetate and lysine uptake). At least some of them (thin filamentous gammaproteobacteria) also seem capable of internal energy storage that could supply chemosynthetic metabolism for hours under conditions of electron donor deprivation. As direct nutritional transfer from bacteria to host was detected, the association appears as true mutualism. Import of soluble bacterial products occurs by permeation across the gill chamber integument, rather than via the digestive tract. This first demonstration of such capabilities in a decapod crustacean supports the previously discarded hypothesis of transtegumental absorption of dissolved organic matter or carbon as a common nutritional pathway.

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“…A hermit crab was selected at random and its shell secured to a clear plastic Petri dish using dental wax, ensuring that the opening of the shell faced upwards so that the hermit crab could be viewed from above at all times unless it was completely withdrawn inside the shell. This was then placed inside the IPOCAMP ™ upon a tripod platform, which raised the position of the hermit crab inside the pressure chamber, allowing it to be viewed more clearly using en endoscope (see Ravaux et al, 2003). The IPOCAMP ™ was then set running at atmospheric pressure for 30 min to allow the hermit crab to acclimatize and recover from handling stress.…”

Section: Behavioural Measurementsmentioning

confidence: 99%

Behavioural and respiratory response of the shallow-water hermit crab Pagurus cuanensis to hydrostatic pressure and temperature

Thatje

Casburn

Calcagno

2010

Journal of Experimental Marine Biology and Ecology

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The evolutionary history of the Anomura has long been controversially discussed. One aspect that has received little attention is the dissimilarity in physiological tolerances of the related families Paguridae and Lithodidae to environmental conditions, and how this may have determined the divergence and radiation of the families into different distribution ranges, in particular with regard to the limited penetration of the deep sea by the Paguridae. This study investigates the physiological tolerances of the temperate shallow-water hermit crab, Pagurus cuanensis, to various temperature (5, 10, 15, 20°C) and pressure regimes (1 to 100 atm) by measuring the standard metabolic rate (SMR) and behavioural changes. SMR was primarily affected by temperature, with a notably low rate at 5°C throughout all pressures. Behaviour was affected by pressure, with an increase in pressure from 50 to 100 atmospheres (atm) resulting in reduced activity. It is suggested that this species can tolerate hydrostatic pressures greater than those found in its natural bathymetric range. It is discussed that a lack of physiological cold tolerance and ecological factors, such as the need to find gastropod shells for protection, are the principal restrictions maintaining P. cuanensis to a maximum depth of approximately 250 m. We hypothesize that temperate shallow-water invertebrates could indeed be able to penetrate greater depths as continental shelf waters warm up in the course of global climate change.

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Heat-shock response and temperature resistance in the deep-sea vent shrimp Rimicaris exoculata

Cited by 95 publications

References 31 publications

Deep-sea hydrothermal vent animals seek cool fluids in a highly variable thermal environment

Deep-sea hydrothermal vent animals seek cool fluids in a highly variable thermal environment

Inorganic carbon fixation by chemosynthetic ectosymbionts and nutritional transfers to the hydrothermal vent host-shrimp Rimicaris exoculata

Behavioural and respiratory response of the shallow-water hermit crab Pagurus cuanensis to hydrostatic pressure and temperature

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