Please use this identifier to cite or link to this item:
Title: Effect of chemical stress and ultraviolet radiation in the bacterial communities of zebrafish embryos
Author: Oliveira, Jacinta M. M.
Almeida, Ana Rita
Pimentel, Tânia
Andrade, Thayres S.
Henriques, Jorge F.
Soares, Amadeu M. V. M.
Loureiro, Susana
Gomes, Newton C. M.
Domingues, Inês
Keywords: Danio rerio embryos
Ultraviolet radiation
Chemical stress
Issue Date: Jan-2016
Publisher: Elsevier
Abstract: This study aimed to assess the effect of ultraviolet radiation (UVR) and chemical stress (triclosan-TCS; potassium dichromate-PD; prochloraz-PCZ) on bacterial communities of zebrafish (Danio rerio) embryos (ZEBC). Embryos were exposed to two UVR intensities and two chemical concentrations not causing mortality or any developmental effect (equivalent to the No-Observed-Effect Concentration-NOEC; NOEC diluted by 10-NOEC/10). Effects on ZEBC were evaluated using denaturing gradient gel electrophoresis (DGGE) and interpreted considering structure, richness and diversity. ZEBC were affected by both stressors even at concentrations/doses not affecting the host-organism (survival/development). Yet, some stress-tolerant bacterial groups were revealed. The structure of the ZEBC was always affected, mainly due to xenobiotic presence. Richness and diversity decreased after exposure to NOEC of PD. Interactive effects occurred for TCS and UVR. Aquatic microbiota imbalance might have repercussions for the host/aquatic system, particularly in a realistic scenario/climate change perspective therefore, future ecotoxicological models should consider xenobiotics interactions with UVR.
Peer review: yes
DOI: 10.1016/j.envpol.2015.10.039
ISSN: 0269-7491
Appears in Collections:CESAM - Artigos
DBio - Artigos

Files in This Item:
File Description SizeFormat 
1-s2.0-S0269749115301408-main.pdf1.24 MBAdobe PDFrestrictedAccess

Formato BibTex MendeleyEndnote Degois 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.