CADMIUM DISPOSITION IN THE EARTHWORM EISENIA-FETIDA

被引：45

作者：

HONEYCUTT, ME ^{[1
]}

ROBERTS, BL ^{[1
]}

ROANE, DS ^{[1
]}

机构：

[1] NE LOUISIANA UNIV,DEPT PHARMACOL TOXICOL,MONROE,LA 71209

来源：

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY | 1995年 / 30卷 / 02期

关键词：

D O I：

10.1006/eesa.1995.1018

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The disposition of cadmium was examined in the earthworm Eisenia fetida using two exposure media, filter paper, and artificial soil. Uptake and elimination rates were estimated to be 0.03039 and 0.00895 hr(-1), respectively, for 1.25 mu g Cd/cm(2) filter paper exposure and 0.00512 and 0.00029 hr(-1), respectively, for 10 mu g Cd/g artificial soil exposure. The distribution of cadmium was examined using whole body autoradiography, tissue distribution, and subcellular localization. Cadmium tissue distribution was exposure-dependent, while cadmium subcellular localization apparently was not exposure-dependent. Acid-soluble thiol levels, examined as an index of cadmium exposure, were too variable in nonexposed earthworms to serve as an indicator of cadmium exposure. (C) 1995 Academic Press, Inc.

引用

页码：143 / 150

页数：8