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应用生态学报 ›› 1999, Vol. 10 ›› Issue (5): 596-598.

• 研究论文 • 上一篇    下一篇

Cd2+、Al3+作用下蚕豆UDS与微核相关性分析及高等植物UDS技术初探

常学秀, 文传浩, 王焕校   

  1. 云南大学生物系, 昆明650091
  • 收稿日期:1997-11-20 修回日期:1999-03-18 出版日期:1999-09-25 发布日期:1999-09-25
  • 通讯作者: 常学秀,女,27岁,在读博士研究生,现从事污染生态学及环境毒理学研究.发表论文4篇.E-mail:changxx@ynu.edu.cn E-mail:changxx@ynu.edu.cn
  • 基金资助:

    国家自然科学基金资助项目(39360020).

Correlation analysis between UDS and MCN in Vicia faba treated with Cd2+ and Al3+ and UDS technique in higher plants

Chang Xuexiu, Wen Chuanhao, Wang Huanxiao   

  1. Biology Department, Yunnan University, Kunming 650091
  • Received:1997-11-20 Revised:1999-03-18 Online:1999-09-25 Published:1999-09-25

摘要: 为探讨金属离子对高等植物非按期DNA合成(UnscheduledDNASythesis,简称UDS)和微核(MCN)的诱导作用、二者之间的关联性以及利用高等植物UDS技术检测环境诱变物的可行性,利用3HTdR前体掺入法研究了Cd2+、Al3+作用下蚕豆的UDS效应。结果表明,Cd2+、Al3+均能不同程度地诱导蚕豆UDS和MCN的发生;UDS量与微核率(MCNF)之间呈负相关(r<0),但相关不显着(|r|0.05),且二者间的相关程度在Cd2+和Al3+两种金属离子作用下没有显着差别(P>0.05);利用高等植物UDS技术检测环境诱变物质,在一定受检物剂量范围内是可靠的,但超过这个剂量范围,UDS技术无法检出.

关键词: 金属离子, UDS, 微核, 相关分析, 高等植物UDS技术

Abstract: With the method of inserting3H TdRinto DNA, this paper studied the inductive effect of Cd2+ and Al3+ on unscheduled DNA synthesis (UDS) and micronucleus (MCN) in Vicia faba, the correlation between UDS and MCN, and the feasibility of using higher plant UDStest as the indicator to detect environmental mutagens. The results indicated that both Cd2+ and Al3+ could induce UDS and MCN in Vicia faba. There was a negative relationship between UDS and MCN, but it was not significant. The relationship between UDS and MCN was similar under the treatments of Cd2+ and Al3+ respectively. It was reliable using higher plant UDS test as the indicator to detect environmental mutagens within certain dosage range.

Key words: Metal ion, UDS, MCN, Correlation analysis, Higher plant UDS test