重金属对海洋微藻的毒性效应.doc

文档介绍：
重金属对海洋微藻的毒性效应#
1 2 1 1 1 1**
(1. 清华大学深圳研究生院海洋学部;
5
10
15
20
25
2. 宁波海洋开发研究院(国家海洋局第二海洋研究所宁波分所))
摘要:重金属是一类主要的海洋污染物,其对海洋生物的毒性效应已经引起广泛的重视。海洋微藻是海洋
的初级生产者,在整个海洋生态系统中占有极其重要的地位。因此研究重金属对海洋微藻的毒性效应,对
于海洋环境保护和海水养殖具有重要意义。本文从重金属影响海洋微藻的生长、光合作用、细胞形态及亚
细胞结构以及造成氧化胁迫等多方面出发,简述了重金属对海洋微藻的毒性效应。
关键词:重金属;海洋微藻;毒性效应
中图分类号:X22
THE TOXICITY OF HEVTY METALS ON MARINE
MICROALGAE
ZHAO Lihong1, REN Haibo2, WANG Yixiang1, ZHOU Jin1, CAI Zhonghua1, ZHU
Xiaoshan1
(1. Division of Ocean Science & Technology, Graduate School at Shenzhen,Tsinghua University,
Shenzhen, 518055, P. R. China.;
2. Ningbo Institute of Marine Development & Research, Ningbo,315040)
Abstract: Heavy metal is one of the major marine pollutants. The toxic effects of heavy metals on
anisms have raised concerns. As one primary producer, the marine microalgae occupy
an extremely important position in the marine ecosystem. Researches about the toxic effects of
heavy metals on marine microalgae therefore have great significances. In this paper, the toxic
effects of heavy metals on marine microalgae were summarized briefly in term of the inhibitions
on growth, the disturbances on photosynthesis, the damages on cell structure, and the oxidative
stress in the marine microalgae.
Key words: Heavy metal; Marine microalgae; Toxicity
30

0

引言
重金属离子是主要的海洋污染物之一。重金属一般是指密度大于 5 的金属,如 Cu、Fe、
Pb 等,环境科学中有时指工业上常用的、对动物和微生物有毒性