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	Provedor de dados ArchiMer (1) BABT (1) Autor Boulegue, J (1) Cosson, Rp (1) Fiala-medioni, A (1) Nascimento,Iracema (1) Nazar,Maria Loreto (1) Rodrigues,Luiz Erlon Araujo (1) Rousse, N (1) Mais... Palavra-chave Lysosomes (2) Acid phosphatase (1) Aquatic environments (1) Bio-accumulation (1) Bioaccumulation (1) Biomarkers (1) Hydrothermal (1) Metallothioneins (1) Métallothionéines (1) Pollution (1) Toxicity (1) Toxicité (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Text (1) Ano 2008 (1) 1998 (1) País Brazil (1) France (1) Idioma Francês (1) Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Bioaccumulation des métaux chez le mytilidae hydrothermal Bathymodiolus sp. de la ride médio-atlantique ArchiMer Rousse, N; Boulegue, J; Cosson, Rp; Fiala-medioni, A. The hydrothermal environment is characterised, among other things, by a high metal concentration, related to the convective sea-water circulation inside the oceanic crust and its interaction with basaltic rocks. The biological communities associated with the hydrothermal system can survive in this toxic environment owing to their ability to regulate their intracellular metal levels by excretion or accumulation of metal ions in non-toxic forms. Various detoxification processes have been previously studied within an hydrothermal organism: immobilisation and precipitation of the metal in lysosomal systems, or binding to specific and soluble ligands such as metallothioneins. The later are heat stable and characterised by a high content of cysteine. The... Tipo: Text Palavras-chave: Bio-accumulation; Métallothionéines; Lysosomes; Toxicité; Hydrothermal; Bioaccumulation; Metallothioneins; Lysosomes; Toxicity; Hydrothermal. Ano: 1998 URL: http://archimer.ifremer.fr/doc/00325/43662/43238.pdf The lysosomal stability as a biomarker for the determination of pollution in aquatic environments BABT Nazar,Maria Loreto; Rodrigues,Luiz Erlon Araujo; Nascimento,Iracema. This work studied the effects caused by five different formulae of gasoline on the stability of the lysosomes isolated from the liver of the tilapia fish (Oreochromis niloticus). The functional integrity of the lysosomal membranes was evaluated via the acid phosphatase activity. The results showed that there were significant changes in the stability of the lysosomes exposed to the presence of the hydrocarbons in the environment. Therefore, considering the method's simplicity, the sensitivity of the responses and its low cost the assessment of the lysosomal activity could be an important tool for the study of the effects of pollution in the aquatic environments. Tipo: Info:eu-repo/semantics/article Palavras-chave: Biomarkers; Acid phosphatase; Lysosomes; Aquatic environments; Pollution. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000500025 Registros recuperados: 2 Primeira ... 1 ... Última

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