|Table of Contents|

STUDIES ON TOXICITY AND TOXICOLOGY OF HEAVY METALS TO EARTHWORMS IN POLLUTED SOILS(PDF)

Chinese Journal of Applied & Environmental Biology[ISSN:1006-687X/CN:51-1482/Q]

Issue:
1996 02
Page:
132-140
Research Field:
Publishing date:

Info

Title:
STUDIES ON TOXICITY AND TOXICOLOGY OF HEAVY METALS TO EARTHWORMS IN POLLUTED SOILS
Author(s):
Guo Yongcan Wang Zhenzhong Zhang Youmei Lai Qin Yan Hengmei Xia Weisheng Deng Jifu
1. Department of Biology, Hunan Normal University, Changsha 410006;
2. Department of Resource and Environment, Hunan Normal University, Changsha 410006;
3. Zhuzhou Institute of Environmental Protection Science, Zhuzhou 412000
Keywords:
toxicitytoxicologyheavy metal pollutionearthwormmicrostructuneultrastructure
CLC:
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PACS:
DOI:
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DocumentCode:

Abstract:
The results from the tests of heavy metal toxicity to the earthworms collected from the Polluted soils indicated that the various heavy metals LD50(mg/kg)after treated for 48h were cd 1000 mg/kg,Pb 707mg/kg,Cu 633 mg/kg,Hg 304 mg/kg,Zn 566 mg/kg,and Cr 450 mg/kg respectively.The toxicological analyses indicated that the activity of esterase isozymes of the earthworms was inhibited by the heavy metals,but their catalase isozymes were activated. Under light microscope,it could be observed that the heavy metal pollution might cause ulcer or tumour on the body surface of earthworms,blood letting and epithelial cells shrinking or atrophying on their intestinal mucosa and dorsal blood vessels swelling.Under electron microscope,it could be seen that the rER,Golgi cisternae and mitochondrion swelling in the mucosa cells of the earthworms from the seriously polluted soils,and even the vesiculation appeared or lysis took place and cristae disappered.It could also be seen that in the body of earthworm the perinuclear cisterna swelled)nuclear envelope broke,nucleoplasm flowed out and complasm autolysed. These pathologies changed with different degrees of heavy metal pollution.Each of pethological indiCators could qualitatively responds to heavymetal pollution in soils.

References

1 王振中,张友梅.土壤污染对土壤动物群落结构的影响.湖南师范大学自然科学学报.1987,10(l):90-96
2 王振中,张友梅,郭永灿等,土壤重金属对所绷影响的研究.环境科学学报,1994,14(2):236-243
3 陈义.中国蚯蚓.北京:科学出版社,1956
4 尹文英主编.中国亚热带土壤动物.北京:科学出版社,1992
5 黄福珍.蚯蚓.北京:农业出版社,1982
6 Senapati B K,Biswal J,Pani S C et al. Ecotoxicological effects of malathion on earthworms. Soil Biol Biochem. 1992,24(12):1719-1722
7 Jari Haimi, Janne Salmine, Veikko Huhta et al. Bioaccumulation of organochlorine compounds in earthworms. Soil Biol Biochent.1992,24(12):1699-1704
8 Stenersen J,Btekk E,Engelstad F. Earthworms for toxicity testingtspecies differences in response towards cholinesterase inhibiting insecticides. Soil Biol BioclLm.1992,24(12):1761-1764
9 郭永灿,王振中,张友梅等.土壤中锅、铅污染对析MI过氧化物酶及酷酶同工酶活性的影响.见:余传隆主编,生命科学进展.北京:中国医药科技出版社,1993.325-333
10 郭永灿,王振中,赖勤等.蛆绷的体表及食道、砂囊、胃、肠道粘膜的扫描电镜观察.湖南师范大学自然科学学报.1993,16(增刊):102-106
11 郭永灿,王振中,颜亨梅等.土壤中重金属污染对白颈环毛闯胃肠道粘膜的扫描电镜观察.电子显微学报.1994,13(2):84-89
12 Hook,R. I. van. Cadmium,lead and zinc distributions between earthworms and soils, potentials for biological accumulation. Bull Environ Contam Toxicol. 1974,12 :509-515
13 Ireland M P. The effect of the earthworm Dendrobaem rubiba on the solubility of lead,zinc,and calcium in heavy metal contaminated soilin Wales. Soil Sci. 1975,26:313-318
14 Prento P. Distribution of 20 enzymes in the midgut region of the earthworms. lambricus terrestris L., with particular emphasis on the Physiological role of chloragog tissue. Compar Biochem physiol. 1987, 87A,1723-1727
15 Fischer E,Molnar. Molnar. Enviromental aspects of the chloragogenous tissue of earthworms. Soil Biol Biochem. 1992, 24(12): 1723-1727
16 Ginn F L,Shelburne 7 D,Trump B F. Disorders of cell volume regulation I. Effects of inhibition of plasma membrane adenosine triphophatese with ouabain. Amer J Pallwl. 1968,53:1041-1046
17《工业毒理学实验方法》编写组编.工业毒理学实验方法.上海科技出版社,1967
18 胡能书,万国贤.同工酶技术及其应用.长沙:湖南科技出版社,1985
19 洪涛主.生物医学超微结构与电子显镜技术.北京:科学出版社,1980

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