Carcinogenesis, Teratogenesis & Mutagenesis

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Effect of phthalate esters on micronuclei rates in vicia faba root tip cells

DUAN Li-ju,WANG Hai-xue,GAO Liu-chuang,TANG Zhi-min,JI Zong-hui,FAN Qing-tang,CUI Liu-xin   

  1. (College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China)
  • Received:2013-09-16 Revised:2013-10-04 Online:2013-11-30 Published:2013-11-30
  • Contact: DUAN Li-ju,E-mail: dlj@zzu.edu.cn

Abstract:

 OBJECTIVE: To study the mutagenicity of some kinds of phthalate esters. METHODS:Vicia faba root tips were exposed to different concentrations of phthalate esters including dimethyl phthalate,dibuthyl phthalate,bis (2-ethylhexyl) phthalate,diethyl phthalate and dipropyl phthalate for 24 hours. Number of micronuclei of  vicia faba root tips cells was observed. RESULTS:Compared with the negative control group,while dimethyl phthalate at the concentration of 0.008,0.016,0.032 mg/L,phthalate dibutyl and phthalate dioctyl at the concentration of 0.016,0.032 mg/L,respectively,there were significant differences in micronucleus rate (P<0.05). Compared with the negative control group,there were no significant differences in micronucleus rate of phthalate diethyl exposured groups and dipropyl phthalate exposured groups (P>0.05). CONCLUSION:The present study demonstrats that dimethyl phthalate and dibutyl phthalate,dioctyl phthalate displayed genetic toxicity and low concentration of diethyl phthalate and phthalate dipropyl showed no genotoxicity.

Key words: phthalate esters, vicia faba , root tip cells, micronucleus test