کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9454717 | 1308550 | 2005 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of atrazine on metamorphosis, growth, laryngeal and gonadal development, aromatase activity, and sex steroid concentrations in Xenopus laevis
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of atrazine on metamorphosis, growth, laryngeal and gonadal development, aromatase activity, and sex steroid concentrations in Xenopus laevis Effects of atrazine on metamorphosis, growth, laryngeal and gonadal development, aromatase activity, and sex steroid concentrations in Xenopus laevis](/preview/png/9454717.png)
چکیده انگلیسی
African clawed frogs (Xenopus laevis) were exposed to one of eight nominal waterborne concentrations including 0, 0.1, 1.0, 10, or 25 μg/L atrazine, 0.005% ethanol (EtOH), or 0.1 mg/L estradiol (E2) or dihydrotestosterone (DHT) containing 0.005% EtOH. Frogs were exposed from 72 h posthatch until 2-3 months postmetamorphosis via a 3-day static renewal exposure regimen. Atrazine at concentrations between 0.1 and 25 μg/L did not significantly affect mortality, growth, gonad development, laryngeal muscle size, or aromatase activity in juvenile X. laevis. Male frogs exposed to 1.0 μg/L atrazine had lower E2 levels compared to controls, but this response was not consistent among other concentrations of atrazine. Male and female frogs exposed to DHT had larger laryngeal dilator muscle areas compared to controls. E2-exposed female frogs had decreased gonadal aromatase activity, and E2-exposed male frogs had statistically greater plasma concentrations of E2 compared to controls.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecotoxicology and Environmental Safety - Volume 62, Issue 2, October 2005, Pages 160-173
Journal: Ecotoxicology and Environmental Safety - Volume 62, Issue 2, October 2005, Pages 160-173
نویسندگان
Katherine K. Coady, Margaret B. Murphy, Daniel L. Villeneuve, Markus Hecker, Paul D. Jones, James A. Carr, Keith R. Solomon, Ernest E. Smith, Glen Van Der Kraak, Ronald J. Kendall, John P. Giesy,