BIOCHEMICAL CHARACTERISTICS OF MACROURID FISHES DIFFERING IN THEIR DEPTHS OF DISTRIBUTION
BIOCHEMICAL CHARACTERISTICS OF MACROURID FISHES DIFFERING IN THEIR DEPTHS OF DISTRIBUTION
复制标题
不同分布深度的 MACROID 鱼类的生化特征
DOI：
10.2307/1541512
复制
发表时间：
1982
期刊：
影响因子：
--
通讯作者：
R. Haedrich
中科院分区：
文献类型：
--
作者：
J. Siebenaller;G. Somero;R. Haedrich
酶活性（单位每克湿重的组织）进行了测量，在白色骨骼肌和脑组织的五种macrourid（鼠尾）鱼发生在一个大约5000米的深度梯度。肌肉蛋白质和水分含量也进行了测定。所有物种表现出极低的量的肌肉酶活性的糖酵解酶乳酸脱氢酶（LDH）和丙酮酸激酶（PK），相对于以前报道的值为浅生活的鱼类。苹果酸脱氢酶的活性也很低，而柠檬酸合酶（CS）的活性是类似的水平，发现在浅水生活的鱼类。鼠尾之间的种间差异很大，特别是LDH活性，这是一个强有力的指标，鱼的能力，激烈，爆发游泳。Coryphaenoides armatus，一个大的rattail，这可能是最活跃的游泳者之间的物种研究，具有最高的酶活性和蛋白质含量，并为LDH，PK，和CS，表现出显着的缩放的酶活性。
Enzymic activities (units per gram wet weight of tissue) were measured in white skeletal muscle and brain tissue of five species of macrourid (rattail) fishes occurring over an approximately 5000 m depth gradient. Muscle protein and water contents were also determined. All species exhibited extremely low amounts of muscle enzymic activity for the glycolytic enzymes lactate dehydrogenase (LDH) and pyruvate kinase (PK), relative to values previously reported for shallow-living fishes. Malate dehydrogenase activity also was low, while citrate synthase (CS) activity was similar to levels found in shallow-living fishes. Interspecific differences among the rattails were large, especially for LDH activity which is a strong indicator of a fish's capacity for vigorous, burst swimming. Coryphaenoides armatus, a large rattail which is likely to be the most active swimmer among the species studied, had the highest enzymic activities and protein content, and, for LDH, PK, and CS, exhibited a significant scaling of enz...