FAILURE OF OXYGEN TRANSPORT IN A FISH AT LOW LEVELS OF AMBIENT OXYGEN

被引：11

作者：

GRIGG, GC

机构：

[1] School of Biological Sciences, University of Sydney

来源：

COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY | 1969年 / 29卷 / 03期

基金：

美国国家科学基金会;

关键词：

ambient oxygen tension; blood; fish; gills; Ictalurus nebulosus; Oxygen transport;

D O I：

10.1016/0010-406X(69)91030-5

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

1. 1. Complete deoxygenation of arterial blood results in the failure of oxygen consumption in brown bullheads (Ictalurus nebulosus) at low levels of ambient oxygen. 2. 2. The arterial deoxygenation apparently results from inability of the blood to load oxygen across the diffusion barrier of the gills, since gil ventilation and perfusion continue after oxygen uptake ceases. 3. 3. The ambient oxygen tension at which this occurs differs appropriately in two groups of bullheads known to have different blood oxygen affinities as a result of thermal acclimation. The oxygen affinity of the blood is therefore strongly implicated as a factor limiting oxygen uptake at low levels of ambient oxygen. © 1969.

引用

页码：1253 / &

共 8 条

[1]

BLACK EDGAR C., 1954, CANADIAN JOUR ZOOL, V32, P408, DOI 10.1139/z54-039

[2]

BROWN ME, 1957, PHYSIOLOGY FISHES ED, V1, P1

[3]

Fry FEJ, 1957, PHYSIOL FISHES, VI, P1

[4] TEMPERATURE-INDUCED CHANGES IN OXYGEN EQUILIBRIUM CURVE OF BLOOD OF BROWN BULLHEAD ICTALURUS NEBULOSUS [J].