کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2582966 | 1130676 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of increasing levels of pharmaceutical penicillin G contamination on structure of free living nematode communities in experimental microcosms
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
بهداشت، سم شناسی و جهش زایی
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چکیده انگلیسی
A microcosm experiment was conducted to examine the effects of the pharmaceutical (penicillin G) on free living nematode communities of a Tunisian coastal zone (South-Western Mediterranean Sea). Sediments were contaminated with five penicillin G dose [D1 (3 mg Lâ1), D2 (30 mg Lâ1), D3 (300 mg Lâ1), D4 (600 mg Lâ1), D5 (700 mg Lâ1)], and effects were examined after 30 days. Results showed significant differences between nematode assemblages from undisturbed controls and those from penicillin G treatments. Most univariate measures, including diversity (Hâ²), species richness (d), equitability (J) and number of species (S) decreased significantly with increasing level of the antibiotic contamination. Results from multivariate analyses of the species abundance data demonstrated that responses of nematode species to the penicillin treatments were varied: Kraspedonema octogoniata and Paracomesoma dubium were eliminated at all the antibiotic doses tested and seemed to be intolerant species to penicillin G contamination; Oncholaimus campylocercoides although survived even the highest dose D5, showed definite reduction in its abundance and may be classified as “opportunistic” species at this dose, whereas, Nannolaimoides decoratus which showed a positive response with an increase in density even at highest concentration of contaminant, seems to be “penicillin G resistant” species.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Toxicology and Pharmacology - Volume 40, Issue 1, July 2015, Pages 215-219
Journal: Environmental Toxicology and Pharmacology - Volume 40, Issue 1, July 2015, Pages 215-219
نویسندگان
Ahmed Nasri, Soufiane Jouili, Fehmi Boufahja, Amor Hedfi, Ezzeddine Mahmoudi, Patricia Aïssa, Naceur Essid, Hamouda Beyrem,