Exposure to Metalaxyl Disturbs the Skeletal Development of Zebrafish Embryos

Metalaxyl is broadly applied in agriculture to control peronosporales-caused diseases in plant. To investigate the toxic effects, zebrafish embryos were exposed to metalaxyl at 5, 50 and 500 ng/L for 72 h, the development of larvae were assessed. A significant decreased survival rate, body length, h...

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Veröffentlicht in:Bulletin of environmental contamination and toxicology 2020-04, Vol.104 (4), p.432-437
Hauptverfasser: Wu, Yuqiong, Xu, Zhenyi, Xu, Xiaobin, Fan, Li, Jiang, Xianbiao
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Xu, Zhenyi
Xu, Xiaobin
Fan, Li
Jiang, Xianbiao
description Metalaxyl is broadly applied in agriculture to control peronosporales-caused diseases in plant. To investigate the toxic effects, zebrafish embryos were exposed to metalaxyl at 5, 50 and 500 ng/L for 72 h, the development of larvae were assessed. A significant decreased survival rate, body length, hatching rate (48 h post-fertilization), and a significant increased spinal curvature rate were observed in the 500 ng/L treatment. The lengths of lower jaw, upper jaw and hyomandibular were significantly decreased in the 5, 50 and 500 ng/L groups; while the lower jaw width was significantly increased in the 500 ng/L group. The lengths of palatoquadrate, ceratohyal and ethmoid plate were reduced. Though cyp26a1 mRNA levels showed no significant change, the transcription of bmp2b (in the 500 ng/L group), ihh (in the 50 and 500 ng/L groups), shh (in the 5, 50 and 500 ng/L groups) were significantly up-regulated, which may be related to the abnormal development of the skeleton.
doi_str_mv 10.1007/s00128-020-02806-z
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subjects Alanine - analogs & derivatives
Alanine - toxicity
Animals
Aquatic Pollution
Body length
Bone and Bones - drug effects
Bone and Bones - embryology
Dose-Response Relationship, Drug
Earth and Environmental Science
Ecotoxicology
Embryo, Nonmammalian - drug effects
Embryonic Development - drug effects
Embryos
Environment
Environmental Chemistry
Environmental Health
Fertilization
Fungicides
Hatching
Jaw
Larva - drug effects
Larva - growth & development
Larvae
Mandible
Maxilla
Metalaxyl
Plant diseases
Pollution
Skeleton
Soil Science & Conservation
Spinal curvature
Survival
Transcription
Waste Water Technology
Water Management
Water Pollutants, Chemical - toxicity
Water Pollution Control
Zebrafish
title Exposure to Metalaxyl Disturbs the Skeletal Development of Zebrafish Embryos
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