کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4424443 1619181 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Is there a relationship between earthworm energy reserves and metal availability after exposure to field-contaminated soils?
ترجمه فارسی عنوان
آیا بین ذخایر انرژی کرم خاکی و دسترسی فلز پس از قرار گرفتن در معرض خاک های آلوده وجود دارد؟
کلمات کلیدی
در دسترس بودن فلزات خاکی، بیومارکرهای کرم خاکی، دوز کم کوکتل، پارامترهای خاک
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی


• Energy reserves were quantified in earthworms exposed to a wide panel of field soils.
• Protein and lipid contents were related to CaCl2 extractable metals.
• Soil texture affected protein and lipid contents.
• Energy reserves were highly variable inter-individually.

Generic biomarkers are needed to assess environmental risks in metal polluted soils. We assessed the strength of the relationship between earthworm energy reserves and metal availability under conditions of cocktail of metals at low doses and large range of soil parameters. Aporrectodea caliginosa was exposed in laboratory to a panel of soils differing in Cd, Pb and Zn total and available (CaCl2 and EDTA-extractable) concentrations, and in soil texture, pH, CEC and organic-C. Glycogen, protein and lipid contents were recorded in exposed worms. Glycogen contents were not linked to the explaining variables considered. Variable selection identified CaCl2 extractable metals concentrations and soil texture as the main factors affecting protein and lipid contents. The results showed opposite effects of Pb and Zn, high inter-individual variability of biomarkers and weak relationships with easily extractable metals. Our results support the lack of genericity of energy reserves in earthworms exposed to field-contaminated soils.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 191, August 2014, Pages 182–189
نویسندگان
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