木兰溪两岸浅井水对紫露草四分体微核率的影响  

Effect of Shallow Well Water along the Mulan Stream on Tradescantia paludosa Tetrad Micronucleus Frequency

作　　者：林建城 曾定木[2] 

机构地区：[1]福建省莆田高等专科学校生化系 [2]福建师范大学生物工程学院

出　　处：《福建师范大学学报（自然科学版）》1998年第4期84-88,共5页Journal of Fujian Normal University：Natural Science Edition

摘　　要：采用紫露草四分体微核技术，对莆田木兰溪下游河溪水和饮用的浅井水进行致突变性监测．结果表明，１０份河溪水能明显诱发紫露草四分体微核率的增高；与对照组相比１０份浅井水也均不同程度提高了四分体微核效应，８份已达到显著或极显著水平（Ｐ＜０．０５或Ｐ＜０．０１），且与诱发的紫竹梅四分体微核效应显著相关，ｒ＝０．９７７７．说明浅井水内存在致植物细胞染色体畸变物质，提示当地居民上消化道肿瘤高发与饮水污染有一定相关关系．With the help of micronucleus technology of Tradescantia paludosa tetrad,the mutagenicity survey was conducted on the lower stream of Mulan and the shallow well water along its banks.The results showed that 10 river and stream water samples obviously induced the rise in the micronucleus frequency of Tradescantia paludosa tetrad;in camparison with the tap running water,the 10 shallow well water samples also increased the tetrad micronucleus effect by different degrees,and eight of them had reached rather significant level (P<0 05 or P< 0 01),Whats more,the micronucleus frequencies of Tradescantia paludosa tetrad were closely related to that of Setereasea purpurea boom, r =0 9777.It meant that a certain substance did exist in shallow well water which caused the plant cell chromosome to be distorted.Hence it suggested the high percentage of the upper disgestive tube tumour the locals suffered had something to do with the polluted water they drank.

关 键 词：浅井水 紫露草 微核率 致突变性 饮用水 污染 

分 类 号：TU991.21[建筑科学—市政工程] X832[环境科学与工程—环境工程]