• 关键词：海洋酵母菌  微核率  重金属离子  紫露草

• 基金项目：

• 陈登勤
• 山东海洋学院生物系

• 李长荣
• 山东海洋学院生物系

• 韩宝芹
• 山东海洋学院生物系

• 摘要：在人工配制的污染海水(含Cr³⁺、Cd²⁺和Hg²⁺)各150ppm或自然海区污染的海水中,加入一定量的海洋酵母菌（1.5×10⁷个/500ml海水）,经过一定时间处理后,表明酵母菌有解毒和净化污染海水的作用。用紫露草微核方法和化学方法进行对比监测表明,污染海水紫露草微核率降低,离子含量减少。该实验为用微生物方法净化海水提供了依据。

• Abstract：The decontamination of heavy metal polluted sea water by marine yeast was studied using Tradescantia micronucleus technique as a monitoring method. After adding marine yeast at a concentration of 7.5×10⁶ per liter,the metal contents in either polluted natural sea water or artificial sea water spiked with Cr³⁺,Cd²⁺ and Hg²⁺ at 150 ppm were found to decrease,indicated by the MCN technique as well as chemical measurement.

• Key words：marine yeast  micronucleus frequency  heavy metal  Trades-cantia.

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