Diffuse urban pollution increases metal tolerance of natural heterotrophic biofilms

Autor: Adeline Bourgeault, Lise C. Fechner, Catherine Gourlay-Francé, Marie-Hélène Tusseau-Vuillemin
Přispěvatelé: AgroParisTech, Hydrosystèmes et bioprocédés (UR HBAN), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Laboratoire d’Oéanographie Spatiale [Plouzané] (LOS), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Hydrosystèmes et Bioprocédés (UR HBAN)
Rok vydání: 2011
Předmět:
0106 biological sciences
PICT
METAL TOLERANCE
Health
Toxicology and Mutagenesis
QUALITE DE L'EAU
010501 environmental sciences
Toxicology
01 natural sciences
Beta-glucosidase
11. Sustainability
Water Pollution
Chemical
Urban Renewal
media_common
geography.geographical_feature_category
beta-Glucosidase
POLLUTION METALLIQUE
General Medicine
Contamination
Pollution
6. Clean water
Metal tolerance
visual_art
Environmental chemistry
ARISA
[SDE]Environmental Sciences
ENVIRONMENTAL QUALITY STANDARDS
visual_art.visual_art_medium
BIOFILM
Water Microbiology
Environmental Monitoring
media_common.quotation_subject
Heterotroph
Heterotrophic communities
Urban area
Bacterial Physiological Phenomena
Metal
Bacterial Proteins
Metals
Heavy
HETEROTROPHIC COMMUNITIES
Environmental quality
0105 earth and related environmental sciences
geography
Bacteria
010604 marine biology & hydrobiology
Biofilm
Environmental quality standards
FRESHWATER BIOFILM
13. Climate action
Biofilms
Environmental science
Freshwater biofilm
EAU DOUCE
NORME
Water Pollutants
Chemical
Zdroj: Environmental Pollution (0269-7491) (Elsevier Sci Ltd), 2012-03, Vol. 162, P. 311-318
Environmental Pollution
Environmental Pollution, Elsevier, 2012, 162, p. 311-p. 318. ⟨10.1016/j.envpol.2011.11.033⟩
ISSN: 1873-6424
0269-7491
DOI: 10.1016/j.envpol.2011.11.033⟩
Popis: This study is a first attempt to investigate the impact of urban contamination on metal tolerance of heterotrophic river biofilms using a short-term test based on beta-glucosidase activity. Tolerance levels to Cu, Cd, Zn, Ni and Pb were evaluated for biofilms collected at three sites along an urban gradient in the Seine river (France). Metallic pollution increased along the river, but concentrations remained low compared to environmental quality standards. Biofilm metal tolerance increased downstream from the urban area. Multivariate analysis confirmed the correlation between tolerance and contamination and between multi-metallic and physico-chemical gradients. Therefore, tolerance levels have to be interpreted in relation to the whole chemical and physical characteristics and not solely metal exposure. We conclude that community tolerance is a sensitive biological response to urban pressure and that mixtures of contaminants at levels lower than quality standards might have a significant impact on periphytic communities. (C) 2011 Elsevier Ltd. All rights reserved.
Databáze: OpenAIRE
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