Pressure and life: some biological strategies

Pradillon, Florence; Gaill, Françoise

doi:10.1007/s11157-006-9111-2

Cited by 53 publications

(55 citation statements)

References 99 publications

(136 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The effects of pressure and temperature on biological systems are usually antagonistic; i.e. an increase in pressure has similar effects to a decrease in temperature, reducing kinetic energy and causing ordering of molecules (Pradillon and Gaill, 2007). Indeed, low temperatures are known to exacerbate the effects of pressure on shallow-water invertebrate fauna (e.g.…”

Section: Temperature and Pressure Effects On Rates Of Oxygen Consumptmentioning

confidence: 99%

“…Baro-physiological studies involving animals adapted to 0.1MPa (atmospheric pressure) have demonstrated the pressure sensitivity of enzyme activity, protein structure and plasma membrane fluidity (for reviews, see Somero, 1992;Pradillon and Gaill, 2007). Under pressure, enzyme reactions associated with an increased system volume during catalysis are inhibited.…”

Section: Introductionmentioning

confidence: 99%

“…Pressure may also disrupt protein structures, causing denaturation, and the viscosity of plasma membranes is increased through the ordering of lipid molecules within the membrane. Deep-living organisms exhibit enzymatic adaptations that reduce volume change during catalysis, pressure-stable protein structures and homeoviscous adaptations within plasma membranes that maintain fluidity under ambient pressure (MacDonald, 1984;Somero, 1992;Airriess and Childress, 1994) [see also Pradillon and Gaill (Pradillon and Gaill, 2007) and references therein].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Pressure tolerance of the shallow-water caridean shrimp Palaemonetes varians across its thermal tolerance window

Oliphant

Thatje

Brown

et al. 2011

Journal of Experimental Biology

View full text Add to dashboard Cite

2002). The potential for depth range extension and colonisation of the deep sea may, therefore, be genuine for some shallow-water species. There is evidence that the echinoid Echinus acutus has extended its bathymetric range, indicating that migrations to the deep sea are still occurring (Tyler and Young, 1998 Accepted 8 December 2010 SUMMARY To date, no published study has assessed the full physiological scope of a marine invertebrate species with respect to both temperature and hydrostatic pressure. In this study, adult specimens of the shallow-water shrimp species Palaemonetes varians were subjected to a temperature/pressure regime from 5 to 30°C and from 0.1 to 30MPa. The rate of oxygen consumption and behaviour in response to varying temperature/pressure combinations were assessed. Rates of oxygen consumption were primarily affected by temperature. Low rates of oxygen consumption were observed at 5 and 10°C across all pressures and were not statistically distinct (P0.639). From 10 to 30°C, the rate of oxygen consumption increased with temperature; this increase was statistically significant (P<0.001). Palaemonetes varians showed an increasing sensitivity to pressure with decreasing temperature; however, shrimp were capable of tolerating hydrostatic pressures found outside their normal bathymetric distribution at all temperatures. 'Loss of equilibrium' (LOE) in ≥50% of individuals was observed at 11MPa at 5°C, 15MPa at 10°C, 20MPa at 20°C and 21MPa at 30°C. From 5 to 20°C, mean levels of LOE decreased with temperature; this was significant (P<0.001). Low mean levels of LOE were observed at 20 and 30°C and were not distinct (P0.985). The physiological capability of P. varians to tolerate a wide range of temperatures and significant hydrostatic pressure is discussed.

show abstract

Section: Temperature and Pressure Effects On Rates Of Oxygen Consumptmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Pressure tolerance of the shallow-water caridean shrimp Palaemonetes varians across its thermal tolerance window

Oliphant

Thatje

Brown

et al. 2011

Journal of Experimental Biology

View full text Add to dashboard Cite

show abstract

“…As such, all biological processes are affected by hydrostatic pressure to varying degrees (Pradillon and Gaill, 2007). In the marine environment it has been argued that all organisms have upper and lower bathymetric limits (Tyler and Young, 1998).…”

Section: Introductionmentioning

confidence: 99%

Characterising multi-level effects of an acute pressure exposure on a shallow-water invertebrate: insights into the kinetics and hierarchy of the stress response

Morris

Thatje

Ravaux

et al. 2015

Journal of Experimental Biology

View full text Add to dashboard Cite

Hydrostatic pressure is an important, ubiquitous, environmental variable of particular relevance in the marine environment. However, it is widely overlooked despite recent evidence that some marine ectotherms may be demonstrating climate-driven bathymetric range shifts. Wide-ranging effects of increased hydrostatic pressure have been observed from the molecular through to the behavioural level. Still, no study has simultaneously examined these multiple levels of organisation in a single experiment in order to understand the kinetics, hierarchy and interconnected nature of such responses during an acute exposure, and over a subsequent recovery period. Here, we quantify the transcription of a set of previously characterised genes during and after acute pressure exposure in adults of the shrimp Palaemonetes varians. Further, we perform respiratory rate and behavioural analysis over the same period. Increases in expression of genes associated with stress and metabolism were observed during and after high-pressure exposure. Respiratory rate increased during exposure and into the recovery period. Finally, differential behaviour was observed under elevated hydrostatic pressure in comparison to ambient pressure. Characterising generalised responses to acute elevated pressure is a vital precursor to longer-term, acclimation-based pressure studies. Results provide a novel insight into what we term the overall stress response (OSR) to elevated pressure; a concept that we suggest to be applicable to other environmental stressors. We highlight the importance of considering more than a single component of the stress response in physiological studies, particularly in an era where environmental multi-stressor studies are proliferating.

show abstract

“…Since large numbers of biological communities were first discovered near hydrothermal vents (Lonsdale 1977), much interest has been focused on the effects of hydrostatic pressure on a variety of deep-sea organisms (Sakiyama & Ohwada 1998, Kaye & Baross 2004, Partridge et al 2006, Campanaro et al 2008. Many studies have shown that organisms retrieved from depths of 2000 to 3000 m or more do not survive under normal pressure (Gross & Jaenicke 1994, Pradillon et al 2004, Pradillon & Gaill 2007. The effect of hydrostatic pressure on non-deep-sea organisms has been examined as well (Castillo et al 2004, Black et al 2005, Abe 2007, Horikawa et al 2009).…”

Section: Introductionmentioning

confidence: 99%

High-hydrostatic-pressure optical chamber system for cultivation and microscopic observation of deep-sea organisms

Bao¹,

Gai²,

Lou³

et al. 2010

Aquat. Biol.

View full text Add to dashboard Cite

We developed and tested a high-pressure optical chamber system for cultivation and microscopic observation of deep-sea organisms. The system is composed of an optical chamber, a highpressure pump, a pressure sensor and a microscope. The chamber has an observation cavity, 2 cultivation cavities and 2 sapphire windows. The pump is employed for perfusion of culture medium and for increasing the pressure. The pressure sensor monitors the pressure in the chamber. The microscope is used for observing samples through the sapphire windows. In the future, the optical chamber system could be used alone for short-term research or be connected to a large high-pressure vessel to create a flow-through system for long-term research. Using the system, the swimming activity of Bosmina longirostris (Branchiopoda: Cladocera) was observed at different pressures. Swimming activity increased with increasing compression up to 30 MPa. During decompression, this activity reappeared when pressure decreased to 45 MPa and increased with further decreasing pressure. KEY WORDS: Optical chamber system · Real-time · Microscopic observation · PlanktonResale or republication not permitted without written consent of the publisher Aquat Biol 11: 157-162, 2010 To overcome these drawbacks, we developed a high-pressure optical chamber system specifically used for cultivation and microscopic observation of organisms ranging from 100 to 1000 µm in size. The high-pressure chamber is made of titanium, which has been proven to be an excellent biocompatible material and can be used under high pressure up to 60 MPa (6000 m depth in the deep sea). The chamber can either be used alone for short-term research or as part of a flow-through system by connection with a large vessel. A flow-through system could maintain water chemistry conditions in the pressure chamber for longterm observation without decreasing the pressure. We examined the stability of the pressure chamber system and successfully made real-time observations of plankton under different pressures. MATERIALS AND METHODSOptical chamber system. The highhydrostatic-pressure optical chamber system is mainly composed of an optical pressure chamber, a microscope, a pressure pump and a pressure sensor. The temperature is controlled by a water bath.High-hydrostatic-pressure optical chamber: The optical chamber (Fig. 1) is made of titanium, an excellent material for highpressure research. The chamber is in the form of a rectangular box (180 × 44 × 38 mm), which has an observation cavity and 2 cultivation cavities. The maximum pressure in the chamber is 60 MPa.The observation cavity (Fig. 2a) is 13 mm in diameter and provides 2 opposite optical windows for real-time microscopic observation. The optical window (Fig. 2b) is made of sapphire, 16 mm in diameter and 8 mm in thickness. It provides clear images with common microscopes and excellent biocompatibility. A fluorine rubber O-ring (16 mm diameter, 1.8 mm thick) is used to seal the window. The sapphire window is tightened by a compression cove...

show abstract

Pressure and life: some biological strategies

Cited by 53 publications

References 99 publications

Pressure tolerance of the shallow-water caridean shrimp Palaemonetes varians across its thermal tolerance window

Pressure tolerance of the shallow-water caridean shrimp Palaemonetes varians across its thermal tolerance window

Characterising multi-level effects of an acute pressure exposure on a shallow-water invertebrate: insights into the kinetics and hierarchy of the stress response

High-hydrostatic-pressure optical chamber system for cultivation and microscopic observation of deep-sea organisms

Contact Info

Product

Resources

About