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- MakaleYalnız künye2023Scopus SJRQ4Neurotoxic Effect of New Generation Insecticide with Flubendiamide Active Ingredient in Gammarus pulex (Linnaeus, 1758) (Amphipoda: Gammaridae) at Different Temperatures
Söylemez, Hilal; Serdar, Osman
This study aimed to determine the relationship between temperature and neurotoxicity of a new generation insecticide, the active ingredient of which is flubendiamide, on non-target aquatic organisms (Gammarus pulex (L., 1758)). Firstly, LC50 values of flubendiamide on G. pulex were determined at 16, 18 and 20 °C as 256.83 ± 19.59 µgL-1, 169.38 ± 34.17 µgL-1 and 155.84 ± 17.22 µgL-1, respectively. We found that the acute toxicity sensitivity of the test organism to the pesticide containing flubendiamide increased with increasing temperature. Secondly, G. pulex was exposed to non-lethal concentrations of flubendiamide pesticide for 96 hours at the above temperatures. Finally, the changes in acetylcholinesterase (AChE) enzyme activity were determined for each temperature using ELISA kits. The exposure time between the 24th and 96th h at the same temperature was found to be statistically insignificant (p>0.05). It was determined that the inhibition value of AChE enzyme activity on the test organism of the pesticide with active ingredient flubendiamide increased depending on the temperature increase. Considering the changes in AChE enzyme activities in G. pulex at different temperatures against flubendiamide insecticide, it was concluded that it can be used as a useful biomarker.
AtıfScopus1
İncele - Yüksek Lisans TeziAçık Erişim2022Flubendiamide etken maddeli yeni nesil insektisitin farklı sıcaklıklarda Gammarus pulex'teki nörotoksik etkisinin belirlenmesi
Hilal Söylemez
Bu çalışmada, yeni nesil Flubendiamide etken maddeli insektisitin hedef dışı sucul bir organizma olan Gammarus pulex (L., 1758)'teki nörotoksitesinin sıcaklıkla değişiminin belirlenmesi amaçlanmıştır. Öncelikle G. pulex organizmalarının belirlenen (16, 18 ve 20 °C) sıcaklıklardaki flubendiamide etken maddeli insektisite olan akut toksisite değerlerinden 96 saat süredeki LC50 değerleri probit analizi ile belirlenmiştir. Flubendiamide etken maddeli insektisitin 16, 18 ve 20 °C sıcaklıktaki LC50 değerleri sırasıyla 256,83 ± 19,59 µgL-1, 169,38 ± 34,17 µgL-1 ve 155,84 ± 17,22 µgL-1 olarak belirlenmiştir. Test organizmasının artan sıcaklıkla flubendiamide etken maddeli pestisite olan akut toksisite hassasiyeti de artmıştır. Her bir sıcaklıklığa ait flubendiamide pestisitinin G. pulex'teki LC50 değerlerinin ortalamasının 1/20, 1/10 ve 1/5 oranında sublethal konsantrasyonlar belirlenmiştir. G. pulex organizmaları belirlenen söz konusu sublethal konsatrasyonlara 96 saat süreyle maruz bırakılmıştır. Kontrol grubu dahil 10 grupta her sıcaklık için asetilkolinesteraz (AChE) enzim aktivitelerindeki değişimler ELISA kitleri kullanılarak belirlenmiştir. Elde edilen bulgulara göre, tüm gruplarda konsantrasyon arttıkça AChE enzin aktivitesinin inhibe edildiği tespit edilmiştir (p˂0,05). Aynı sıcaklıktaki 24 ve 96. Saatler arasındaki maruziyet süresi istatistiksel açıdan önemsiz olduğu belirlenmiştir (p˃0,05). Sıcaklık artışına bağlı olarak flubendiamide etken maddeli pestisitin test organizması üzerinde AChE enzim aktiviteisini inhibe değerinin arttığı tespit edilmiştir. Flubendiamide insektisitine karşı farklı sıcaklıklarda G. pulex' te AChE enzim aktivitelerinde meydana gelen değişikliklere bakıldığında yararlı biyobelirteç olarak kullanılabileceği kanaatine varılmıştır.
- MakaleYalnız künye2015Scopus SJRQ1Biochemical response of crayfish Astacus leptodactylus exposed to textile wastewater treated by indigenous white rot fungus Coriolus versicolor
Aksu, Onder; Yildirim, Nuran Cikcikoglu; Yildirim, Numan; Danabas, Durali; Danabas, Seval
The discharge of textile effluents into the environment without appropriate treatment poses a serious threat for the aquatic organisms. The present study was undertaken to investigate biochemical response of crayfish Astacus leptodactylus exposed to textile wastewater (TW) treated by indigenous white rot fungus Coriolus versicolor. Glutathione S-transferase (GST), cytochrome P450 1A1 (CYP1A1), and acetylcholinesterase (AchE) levels in hepatopancreas and abdomen tissues of crayfish exposed to untreated, treated, and diluted rates (1/10) in both TW during 24 and 96 h were tested. Physiochemical parameters (electrical conductivity (EC), chemical oxygen demand (COD), pH, and total dissolved solid (TDS)) of TW were determined before and after treatment. Physiochemical parameters of TW decreased after treatment. The GST activity and AchE were generally increased, but CYP1A1 activity was decreased in hepatopancreas tissue of crayfish exposed to different kinds of untreated TW. After treatment by indigenous white rot fungus (C. versicolor), GST and CYP1A1 activities were returned to control values, while AchE activities were increasing further. In this study, only GST and CYP1A1 activities of A. leptodactylus confirmed the efficiency of TW treatment with C. versicolor.
AtıfWoS23OpenAlex27
İncele - MakaleYalnız künye2014Scopus SJRQ2Use of acetylcholinesterase, glutathione S-transferase and cytochrome P450 1A1 in Capoeta umbla as biomarkers for monitoring of pollution in Uzuncayir Dam Lake (Tunceli, Turkey)
Yildirim, Nuran Cikcikogiu; Yildirim, Numan; Danabas, Durali; Danabas, Seual
Uzuncayir Dam Lake is one of the most important water bodies in Tunceli. It is polluted by domestic wastewaters together with natural contamination and pesticides, which have had cumulatively negative effects. This study analyzes the effects of pollution by using the fish species, Capoeta umbla as a sentinel species, with a biomarker approach. The approach comprehends a general biomarker of individual fish health, the condition factor and specific biomarkers of contaminant exposure such as glutathione S-transferase (GST) and cytochrome P450 1A1 (CYP1A1) and acetylcholinesterase (AChE) activity. The general water physico-chemical parameters were measured at each sampling sites during each fish-sampling period. Strong seasonal and locational variations were observed among selected markers. In conclusion, the multibiomarker approach used in the present study clearly revealed differences in the fish health among reference and potentially contaminated sites. The study shows that changes of biomarkers such as acetylcholinesterase, glutathione S-transferase and cytochrome P450 1A1 might be useful for the assessment of environmental contamination in the Uzuncayir Dam Lake (Tunceli, Turkey). (C) 2014 Elsevier By. All rights reserved.
AtıfWoS14OpenAlex16İncele