Difference between revisions of "Piller 1995 J Exp Biol"
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{{Publication | {{Publication | ||
|title=Piller SC, Henry RP, Doeller JE, Kraus DW (1995) A comparison of the gill physiology of two euryhaline crab species, Callinectes sapidus and Callinected similis: Energy production, transport-related enzymes and osmoregulation as a function of acclimation salinity. J | |title=Piller SC, Henry RP, Doeller JE, Kraus DW (1995) A comparison of the gill physiology of two euryhaline crab species, ''Callinectes sapidus'' and ''Callinected similis'': Energy production, transport-related enzymes and osmoregulation as a function of acclimation salinity. J Exp Biol 198:349-58. | ||
|info=[http://jeb.biologists.org/cgi/reprint/198/2/349 J. Exp. Biol. 198: 349-358.] | |info=[http://jeb.biologists.org/cgi/reprint/198/2/349 J. Exp. Biol. 198: 349-358.] | ||
|authors=Piller SC, Henry RP, Doeller JE, Kraus DW | |authors=Piller SC, Henry RP, Doeller JE, Kraus DW | ||
|year=1995 | |year=1995 | ||
|journal=J | |journal=J Exp Biol | ||
|abstract=''Callinectes sapidus'' and ''C. similis'' co-occur in estuarine waters above 15 salinity. ''Callinectes sapidus'' also inhabits more dilute waters, but ''C. similis'' is rarely found below 15 . Previous work suggests that ''C. sapidus'' may be a better hyperosmoregulator than ''C. similis''. In this study, energy metabolism and the levels of transport-related enzymes in excised gills were used as indicators of adaptation to low salinity. Oxygen consumption rates and mitochondrial cytochrome content of excised gills increased in both species as acclimation salinity decreased, but to a significantly greater extent in ''C. similis'' gills. In addition, ''C. similis'' gills showed the same levels of carbonic anhydrase and Na+/K+-ATPase activities and the same degree of enzyme induction during low-salinity adaptation as has been reported for ''C. sapidus'' gills. However, hemolymph osmolality and ion concentrations were consistently lower in ''C. similis'' at low salinity than in ''C. sapidus''. Therefore, although gills from low-salinity-acclimated ''C. similis'' have a higher oxygen consumption rate and more mitochondrial cytochromes than ''C. sapidus'' gills and the same level of transport-related enzymes, ''C. similis'' cannot homeostatically regulate their hemolymph to the same extent as ''C. sapidus.'' | |||
|abstract=''Callinectes sapidus'' and ''C. similis'' co-occur in estuarine waters above 15 salinity. Callinectes sapidus also inhabits more dilute waters, but C. similis is rarely found below 15 . Previous work suggests that C. sapidus may be a better hyperosmoregulator than ''C. similis''. In this study, energy metabolism and the levels of transport-related enzymes in excised gills were used as indicators of adaptation to low salinity. Oxygen consumption rates and mitochondrial cytochrome content of excised gills increased in both species as acclimation salinity decreased, but to a significantly greater extent in ''C. similis'' gills. In addition, ''C. similis'' gills showed the same levels of carbonic anhydrase and Na+/K+-ATPase activities and the same degree of enzyme induction during low-salinity adaptation as has been reported for C. sapidus gills. However, hemolymph osmolality and ion concentrations were consistently lower in ''C. similis'' at low salinity than in ''C. sapidus''. Therefore, although gills from low-salinity-acclimated ''C. similis'' have a higher oxygen consumption rate and more mitochondrial cytochromes than ''C. sapidus'' gills and the same level of transport-related enzymes, C. similis cannot homeostatically regulate their hemolymph to the same extent as ''C. sapidus.'' | |mipnetlab=US AL Birmingham Kraus DW | ||
}} | }} | ||
{{Labeling | {{Labeling | ||
|organism= | |area=Respiration, Comparative MiP;environmental MiP | ||
|preparations= | |organism=Crustaceans | ||
|topics= | |tissues=Lung;gill | ||
|preparations=Intact organ | |||
|topics=Ion;substrate transport, Redox state | |||
|instruments=Oxygraph-2k | |instruments=Oxygraph-2k | ||
|additional=Environmental Physiology; Toxicology | |||
}} | }} | ||
Latest revision as of 09:44, 9 November 2016
| Piller SC, Henry RP, Doeller JE, Kraus DW (1995) A comparison of the gill physiology of two euryhaline crab species, Callinectes sapidus and Callinected similis: Energy production, transport-related enzymes and osmoregulation as a function of acclimation salinity. J Exp Biol 198:349-58. |
Piller SC, Henry RP, Doeller JE, Kraus DW (1995) J Exp Biol
Abstract: Callinectes sapidus and C. similis co-occur in estuarine waters above 15 salinity. Callinectes sapidus also inhabits more dilute waters, but C. similis is rarely found below 15 . Previous work suggests that C. sapidus may be a better hyperosmoregulator than C. similis. In this study, energy metabolism and the levels of transport-related enzymes in excised gills were used as indicators of adaptation to low salinity. Oxygen consumption rates and mitochondrial cytochrome content of excised gills increased in both species as acclimation salinity decreased, but to a significantly greater extent in C. similis gills. In addition, C. similis gills showed the same levels of carbonic anhydrase and Na+/K+-ATPase activities and the same degree of enzyme induction during low-salinity adaptation as has been reported for C. sapidus gills. However, hemolymph osmolality and ion concentrations were consistently lower in C. similis at low salinity than in C. sapidus. Therefore, although gills from low-salinity-acclimated C. similis have a higher oxygen consumption rate and more mitochondrial cytochromes than C. sapidus gills and the same level of transport-related enzymes, C. similis cannot homeostatically regulate their hemolymph to the same extent as C. sapidus.
• O2k-Network Lab: US AL Birmingham Kraus DW
Labels: MiParea: Respiration, Comparative MiP;environmental MiP
Organism: Crustaceans
Tissue;cell: Lung;gill
Preparation: Intact organ
Regulation: Ion;substrate transport, Redox state
HRR: Oxygraph-2k
Environmental Physiology; Toxicology
