scholarly journals Proteomic responses to hypoxia at different temperatures in the great scallop (Pecten maximus)

PeerJ ◽  
2015 ◽  
Vol 3 ◽  
pp. e871 ◽  
Author(s):  
Sébastien Artigaud ◽  
Camille Lacroix ◽  
Joëlle Richard ◽  
Jonathan Flye-Sainte-Marie ◽  
Luca Bargelloni ◽  
...  
Keyword(s):  
Pecten Maximus ◽  
Great Scallop ◽  
Different Temperatures ◽  
Proteomic Responses

scholarly journals Proteomic responses to hypoxia at different temperatures in the Great Scallop (Pecten maximus)

2014 ◽  
Author(s):  
Sébastien SA Artigaud ◽  
Camille CL Lacroix ◽  
Joëlle JR Richard ◽  
Jonathan Flye-Sainte-Marie ◽  
Luca LB Bargelloni ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Anaerobic Metabolism ◽  
Pecten Maximus ◽  
Thermal Window ◽  
Great Scallop ◽  
Coastal Marine ◽  
Proteomic Approach ◽  
Different Temperatures ◽  
Proteomic Responses ◽  
Octopine Dehydrogenase

Hypoxia and hyperthermia are two connected consequences of the ongoing global change that constitute major threats for coastal marine organisms. In the present study, we used a proteomic approach to characterize the changes induced by hypoxia in individuals of the great scallop, Pecten maximus, subjected to three different temperatures, i.e. 10°C, 18°C and 25°C. We did not observe any significant change induced by hypoxia in animals acclimated at 10°C. Contrastingly at 18°C and 25°C, 16 and 11 protein spots were differentially accumulated between normoxia and hypoxia, respectively. Moreover, biochemical data, i.e. octopine dehydrogenase activity and arginine assays suggests that animals grown at 25°C switched their metabolism towards anaerobic metabolism when exposed to either normoxia or hypoxia, suggesting that this temperature is out of the scallops’ optimal thermal window. In all, 11 proteins could be unambiguously identified by mass spectrometry, involved in protein modifications and signaling (e.g. CK2, TBK1), metabolism (e.g. ENO3) or cytoskeleton (GSN). The potential roles of these proteins in the thermal-dependent response of scallops to hypoxia are discussed.

scholarly journals Proteomic responses to hypoxia at different temperatures in the Great Scallop (Pecten maximus)

2014 ◽  
Author(s):  
Sébastien SA Artigaud ◽  
Camille CL Lacroix ◽  
Joëlle JR Richard ◽  
Jonathan Flye-Sainte-Marie ◽  
Luca LB Bargelloni ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Anaerobic Metabolism ◽  
Pecten Maximus ◽  
Thermal Window ◽  
Great Scallop ◽  
Coastal Marine ◽  
Proteomic Approach ◽  
Different Temperatures ◽  
Proteomic Responses ◽  
Octopine Dehydrogenase

Hypoxia and hyperthermia are two connected consequences of the ongoing global change that constitute major threats for coastal marine organisms. In the present study, we used a proteomic approach to characterize the changes induced by hypoxia in individuals of the great scallop, Pecten maximus, subjected to three different temperatures, i.e. 10°C, 18°C and 25°C. We did not observe any significant change induced by hypoxia in animals acclimated at 10°C. Contrastingly at 18°C and 25°C, 16 and 11 protein spots were differentially accumulated between normoxia and hypoxia, respectively. Moreover, biochemical data, i.e. octopine dehydrogenase activity and arginine assays suggests that animals grown at 25°C switched their metabolism towards anaerobic metabolism when exposed to either normoxia or hypoxia, suggesting that this temperature is out of the scallops’ optimal thermal window. In all, 11 proteins could be unambiguously identified by mass spectrometry, involved in protein modifications and signaling (e.g. CK2, TBK1), metabolism (e.g. ENO3) or cytoskeleton (GSN). The potential roles of these proteins in the thermal-dependent response of scallops to hypoxia are discussed.

Proteomic-based comparison between populations of the Great Scallop, Pecten maximus

2014 ◽  
Vol 105 ◽  
pp. 164-173 ◽  
Author(s):  
Sébastien Artigaud ◽  
Romain Lavaud ◽  
Julien Thébault ◽  
Fred Jean ◽  
Øivind Strand ◽  
...  
Keyword(s):  
Pecten Maximus ◽  
Great Scallop

scholarly journals High frequency Barium profiles in shells of the Great Scallop <i>Pecten maximus</i>: a methodical long-term and multi-site survey in Western Europe

2008 ◽  
Vol 5 (5) ◽  
pp. 3665-3698 ◽  
Author(s):  
A. Barats ◽  
D. Amouroux ◽  
L. Chauvaud ◽  
C. Pécheyran ◽  
A. Lorrain ◽  
...  
Keyword(s):  
High Frequency ◽  
Western Europe ◽  
Pecten Maximus ◽  
Coastal Environments ◽  
Great Scallop ◽  
Site Survey ◽  
Scallop Shells ◽  
Bay Of Brest ◽  
Long Term Survey

Abstract. Skeletal barium/calcium ([Ba]/[Ca])shell ratios were measured every third daily striae in 39 flat valves of the Great Scallop Pecten maximus (2-year old; 3 shells/year) collected in temperate coastal environments of Western Europe. Variations of ([Ba]/[Ca])shell ratio were first demonstrated reproducible for several scallop individuals from the same population, over a 7-year period (1998–2004), and from different coastal environments in France (42–49° N). As in previous studies, ([Ba]/[Ca])shell profiles exhibited a background ratio punctuated by transient maxima occurring in summer. Background partition coefficient (DBa=0.11±0.03, in 2000) was similar to that previously reported in P. maximus shells (DBa=0.18), suggesting a direct shell uptake of dissolved seawater Ba (Gillikin et al., 2008). Special attention was then dedicated to the complete monitoring of high resolution ([Ba]/[Ca])shell profiles in bivalve shells (7 years, Bay of Brest) to better constrain environmental processes influencing both the occurrence and the amplitude of summer peaks. In 2000, seawater Ba analyses underlined significant particulate Ba inputs at the seawater interface (SWI) during ([Ba]/[Ca])shell peak events. These Ba inputs are suggested to be subsequent to and rather induced by a pelagic biogenic process. The long term survey revealed first that archived Ba within the shell cannot be used as a direct paleo productivity tracer, and second that complex pelagic/benthic processes in the Ba cycle are responsible of particulate Ba inputs to the SWI, subsequently taken up by the bivalve and recorded as higher ([Ba]/[Ca])shell ratios. When these processes will be better constrained, high frequency observations of Ba in scallop shells would provide new insights into filter feeding dynamics and into Ba biogeochemistry in coastal environments.

Yields of great scallop, Pecten maximus, larvae in a commercial flow-through rearing system in Norway

2006 ◽  
Vol 14 (4) ◽  
pp. 377-394 ◽  
Author(s):  
Thorolf Magnesen ◽  
Øivind Bergh ◽  
Gyda Christophersen
Keyword(s):  
Pecten Maximus ◽  
Great Scallop ◽  
Flow Through

scholarly journals Feeding and energetics of the great scallop, Pecten maximus, through a DEB model

2014 ◽  
Vol 94 ◽  
pp. 5-18 ◽  
Author(s):  
Romain Lavaud ◽  
Jonathan Flye-Sainte-Marie ◽  
Fred Jean ◽  
Antoine Emmery ◽  
Øivind Strand ◽  
...  
Keyword(s):  
Pecten Maximus ◽  
Great Scallop
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