アルキルフェノール類が単細胞緑藻Ｃｈｌａｍｙｄｏｍｏｎａｓ　ｒｅｉｎｈａｒｄｔｉｉの生長に及ぼす影響

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  • Toxicity of Alkylphenols to Unicellular Green Algae Chlamydomonas reinhardtii.
  • アルキルフェノールルイ ガ タンサイボウ リョクソウ Chlamydomonas reinhardtii ノ セイチョウ ニ オヨボス エイキョウ

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Growth inhibition test using Chlamydomonas reinhardtii were performed to estimate a toxicity to alkylphenols under short-term cultural length. C1-10-Alkylphenols, 4-Butoxyphenol(ButoP), Bis-phenol-A(BPA), Di-2-ethylhexyl phthalate (DEHP) and 17β-Estradiol as a chemical substances were added and tested to determine ErC50 for growth inhibition of Chlamydomonas reinhardtii in this study.<br>Through the result of growth inhibition test of Chlamydomonas reinhardtii, the difference between 0-24h ErC50 and 0-72h ErC50 were found in dose of 4-t-Octylphenol and 4-Nonylphenol, and sensitivity of short term test for 24 hours was rather higher than that of conventional 0-72h algal inhibition test. In addition, high negative correlationship between log 24h-ErC50 of alkylphenols BPA to Chlamydomonas reinhardtii and their log Pow was recognized in short-term growth inhibition test under the various combination of eleven alkylphenols except for ButoP and DEHP.<br>It is indicated that toxicity of alkylphenols to growth of Chlamydomonas reinhardtii is sensitively estimated in short-term test within 24 hours.

収録刊行物

  • 水環境学会誌

    水環境学会誌 25 (1), 39-45, 2002

    公益社団法人 日本水環境学会

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