Chen Su, Sun Li-na, Sun Tie-heng, Chao Lei, Sun Wei-ke, Lou Yang
Key Laboratory of Regional Environment and Eco-remediation, Ministry of Education, Shenyang University, Shenyang 110044, China.
Huan Jing Ke Xue. 2011 May;32(5):1477-81.
With soil culture the ecotoxicological effects of galaxolide (HHCB) and tonalide (AHTN) on the germination of wheat (Triticum aestivum) seeds were investigated. And the influence of these two synthetical musks on the wheat germination rate, inhibition rate of root elongation and inhibition rate of shoot elongation were studied. The results showed that there were no obvious dose-effect relationship between wheat germination rate and concentrations of these two synthetical musks. Lower dose (HHCB < or = 150 mg x kg(-1), AHTN < or = 200 mg x kg(-1)) could accelerate the germination of wheat. Under the test concentrations of synthetical musks, the wheat germination rates treated with HHCB and AHTN were 77.78%-95.56% and 84.44%-97.78%, respectively. There were good dose-effect relationship between inhibition rate of root elongation (or inhibition rate of shoot elongation) and synthetical musks concentrations. The EC50 of HHCB and AHTN based on shoot were 155.84 mg x kg(-1) and 290.58 mg x kg(-1), and were 215.66 mg x kg(-1) and 323.10 mg x kg(-1) based on root from linear model. The EC50 of wheat sensitive positions showed that the toxicity of HHCB was stronger than AHTN.
采用土培法研究了佳乐麝香（HHCB）和吐纳麝香（AHTN）对小麦（Triticum aestivum）种子萌发的生态毒理效应。研究了这两种合成麝香对小麦发芽率、根伸长抑制率和苗伸长抑制率的影响。结果表明，小麦发芽率与这两种合成麝香浓度之间无明显剂量效应关系。低剂量（HHCB≤150 mg·kg-1，AHTN≤200 mg·kg-1）可促进小麦萌发。在合成麝香的试验浓度下，HHCB和AHTN处理的小麦发芽率分别为77.78% - 95.56%和84.44% - 97.78%。根伸长抑制率（或苗伸长抑制率）与合成麝香浓度之间存在良好的剂量效应关系。基于苗的HHCB和AHTN的EC50分别为155.84 mg·kg-1和290.58 mg·kg-1，基于根的线性模型计算的EC50分别为215.66 mg·kg-1和323.10 mg·kg-1。小麦敏感部位的EC50表明，HHCB的毒性强于AHTN。
