Phosphorus Metabolism Monitored by 31P NMR in Juvenile Sea Scallop (Placopecten magellanicus) Overwintering in Pearl Nets at a Nova Scotian Aquaculture Site
Phosphorus Metabolism Monitored by 31P NMR in Juvenile Sea Scallop (Placopecten magellanicus) Overwintering in Pearl Nets at a Nova Scotian Aquaculture Site
复制标题
通过 31P NMR 监测在新斯科舍水产养殖场珍珠网中越冬的幼海扇贝 (Placopecten magellanicus) 的磷代谢
DOI:
10.1139/f94-212
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发表时间:
1994
影响因子:
2.4
通讯作者:
J. Walter
中科院分区:
文献类型:
--
作者:
A. E. Jackson;A. Defreitas;L. Hooper;A. Mallet;J. Walter
31P Nuclear magnetic resonance (NMR) spectroscopy has been used to examine in vivo phosphorus metabolism in juvenile sea scallop (Placopecten magellanicus) from an aquaculture site in Nova Scotia. NMR-visible arginine phosphate (Arg P) concentrations declined from summer to winter whereas inorganic phosphate (Pi) levels increased and those of adenosine triphosphate (ATP) remained relatively constant. Our results indicate that, in the scallop that uses the phosphagen Arg P to replenish ATP, the ratio of Arg P to Pi is a better indicator of energetic status than is the ratio of adenylate concentrations known as adenylate energy charge. Scallops collected in fall and winter, when exposed to hypoxic conditions, showed pronounced decreases in Arg P associated with increases in Pi and decreases in ATP levels whereas these remained relatively unchanged in scallops collected in summer. Scallops maintained under simulated winter conditions showed lower levels of Arg P associated with poor nutrition, and a response...
DOI:
10.1016/0304-4173(81)90005-7
发表时间:
1981
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Roberts,JK;Jardetzky,O
通讯作者:
Jardetzky,O
DOI:
10.1002/jez.1402490317
发表时间:
1989
期刊:
The Journal of experimental zoology
影响因子:
--
作者:
Higashi,RM;Fan,TW;Macdonald,JM
通讯作者:
Macdonald,JM
DOI:
10.1016/0167-4889(91)90176-x
发表时间:
1991
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Fan,TW;Higashi,RM;Macdonald,JM
通讯作者:
Macdonald,JM