Acute toxicity of maneb in the tadpoles of common and green toad
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Tarih
2015
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Inst Medical Research & Occupational Health
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Pesticides used in agriculture can have hazardous effects on aquatic organisms, and amphibians are even more threatened than other aquatic vertebrates. Maneb is widely used to control fungal diseases on crops, fruits, and vegetables. The aim of this study was to investigate the acute toxic effects of maneb on the common (Bufo bufo) and green toad (Pseudepidalea viridis) tadpoles. Tadpoles at the development stage 21 were exposed to maneb (0-5 mg L-1) for 120 h. Maneb LC50 values at hour 120 were 1.966 mg L-1 for B. bufo and 0.332 mg L-1 for P. viridis. To the best of our knowledge, these are the first published LC50 findings for the two species. Visceral oedema and tail deformations were observed in both species. We also observed liver necrosis, pronephric tubule deformations, somite deteriorations, and visceral oedema at maneb concentrations >= 0.1 mg L-1 for B. bufo and >= 0.05 mg L-1 for P. viridis. Our results show that B. bufo tadpoles have a much higher resilience to maneb than P. viridis tadpoles. This resilience seems to be related to the larger size of the B. bufo tadpoles and their ability to metamorphose faster in adverse conditions. Future research should look into the mechanisms of toxic action of maneb in anurans.
Açıklama
Anahtar Kelimeler
Bufo bufo, fungicide, histopathology, morphology, Pseudepidalea viridis
Kaynak
Arhiv Za Higijenu Rada I Toksikologiju-Archives of Industrial Hygiene and Toxicology
WoS Q Değeri
Q4
Scopus Q Değeri
Q2
Cilt
66
Sayı
3
