Journal of Ecology and Environment

The Ecological Society of Korea (한국생태학회)
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Assessing the phytotoxicity of cetrimonium bromide in plants using eco-physiological parameters

  • Song, Uhram (Department of Biology, Jeju National University) ;
  • Kim, Han Eol (Department of Biology, Jeju National University)
  • Received : 2016.05.11
  • Accepted : 2016.08.31
  • Published : 2016.11.30
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Abstract

Background: Although cetrimonium bromide is widely used for its bactericidal effects, the safety of cetrimonium bromide remains controversial. Therefore, the phytotoxicity of cetrimonium bromide was tested to evaluate its acute toxicity to plants and possible toxicity to other organisms and the ecosystem. Results: The germination rates of two test species, Lactuca sativa and Brassica campestris, were significantly decreased after cetrimonium bromide treatment. Furthermore, cetrimonium bromide treatment at over 1 mg/L concentration significantly affected root elongation immediately after germination. In pot experiments with semi-mature plants, significantly decreased shoot elongation and chlorophyll content were detected in both species following cetrimonium bromide treatment. Cetrimonium bromide treatment also significantly increased the antioxidant enzyme activities of plants. Conclusion: Our results show that cetrimonium bromide is phytotoxic, and since phytotoxicity testing can imply potential toxicity in the environment, further studies of the environmental toxicity of cetrimonium bromide should be performed.

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References

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