Water Quality and Ecology Research Unit, USDA-ARS National Sedimentation Laboratory, PO Box 1157, Oxford, MS 38655, USA.
Bull Environ Contam Toxicol. 2012 Aug;89(2):292-5. doi: 10.1007/s00128-012-0682-z. Epub 2012 Jun 1.
Phytotoxicity assessments were performed to compare responses of Typha latifolia (L.) seeds to atrazine (only) and atrazine + S-metolachlor exposure concentrations of 0.03, 0.3, 3, and 30 mg L(-1), as well as permethrin exposure concentrations of 0.008, 0.08, 0.8, and 8 mg L(-1). All atrazine + S-metolachlor exposures resulted in significantly reduced radicle development (p < 0.001). A stimulatory effect for coleoptile development was noted in the three highest atrazine (only) exposures (p = 0.0030, 0.0181, and 0.0016, respectively). This research provides data concerning the relative sensitivity of T. latifolia seeds to pesticides commonly encountered in agricultural settings, as well as critical understanding and development of using T. latifolia in phytoremediation efforts for pesticide exposures.
进行了植物毒性评估，以比较香蒲（Typha latifolia (L.)）种子对单独莠去津（atrazine）和莠去津+甲草胺暴露浓度（0.03、0.3、3 和 30 mg/L）以及氯菊酯（permethrin）暴露浓度（0.008、0.08、0.8 和 8 mg/L）的反应。所有莠去津+甲草胺暴露均导致明显的胚根发育减少（p<0.001）。在三个最高莠去津（单独）暴露水平（分别为 p=0.0030、0.0181 和 0.0016）中，发现了 coleoptile 发育的刺激作用。本研究提供了有关香蒲种子对农业环境中常见农药的相对敏感性的数据，以及对利用香蒲进行农药暴露的植物修复工作的理解和发展。
