三价钇对紫露草的遗传毒性研究  

STUDY ON GENETIC TOXICITY OF THREE-VALENCE YTTRIUM IN TRADESCANTIA

作　　者：杨辉[1] 嵇庆[1] 杨永军 张锡然[1] 

机构地区：[1]南京师范大学生物系,南京210097

出　　处：《应用与环境生物学报》1997年第4期319-322,共4页Chinese Journal of Applied and Environmental Biology

摘　　要：用紫露草四分体微核试验法和紫露草雄蕊毛细胞突变法研究了稀土元素三价钇的遗传毒性．结果表明：Y3＋能引起紫露草四分体微核率显著升高，提示Y3＋是诱变剂或纺锤丝毒剂；Y3＋能引起雄蕊毛细胞突变率显著升高，进一步明确Y3＋是诱变剂．Genetic toxicity of three-valence yttrium(y3+) was studied using Tradescantia micronucleus testtechnique and Tradescantia stamen hair mutation bioassay. The results showed that: Y3+ could cause significantincrease in micronucleus frequency of tetrad of Tradescantia, which suggested that Y3+ was a kind ofmutagen or spindle poison; Y3+ could also cause significant increase in frequency of Tradescantia stamen hair cellmutation, which clearly indicated that Y3+ was a kind of mutagen.

关 键 词：稀土元素 三价钇 紫露草 微核试验 遗传毒性 

分 类 号：R995[医药卫生—毒理学]