Octopus mimus (MOLLUSCA: CEPHALOPODA) EMBRYO MISDEVELOPMENT DUE TO CHRONIC EXPOSURE TO THE ORGANOSPHOSPHORUS PESTICICE PARATHON

Pesticides are of ample worldwide use. At present there is a growing concern about seawater contamination by these chemicals. Developing aquatic organisms are particularly at risk. For this reason, early development of Octopus mimus embryos under exposure to commercial Parathion was examined. Concen...

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Autores principales:	Gutiérrez-Pajares,Jorge L., Olivares,Alberto, Bustos-Obregón,Eduardo
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2003
Materias:	Octopus mimus Parathion Early embryo development
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022003000300011
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spelling	oai:scielo:S0717-950220030003000112003-11-28Octopus mimus (MOLLUSCA: CEPHALOPODA) EMBRYO MISDEVELOPMENT DUE TO CHRONIC EXPOSURE TO THE ORGANOSPHOSPHORUS PESTICICE PARATHONGutiérrez-Pajares,Jorge L.Olivares,AlbertoBustos-Obregón,Eduardo Octopus mimus Parathion Early embryo development Pesticides are of ample worldwide use. At present there is a growing concern about seawater contamination by these chemicals. Developing aquatic organisms are particularly at risk. For this reason, early development of Octopus mimus embryos under exposure to commercial Parathion was examined. Concentrations over 0.4 mM of the pesticide altered formation of the embryonic disc at the blastula stage, resulting in abnormal gastrulation and arrest of further development. This toxic effect may be due to the blockade of DNA synthesis elicited by organophosphoric pesticides causing diminished number of blastodermic cells at the time of epiboly, thus hindering the start of invagination. Seawater contamination seems, therefore, of relevance for survival of exposed aquatic species.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.21 n.3 20032003-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022003000300011en10.4067/S0717-95022003000300011
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Octopus mimus Parathion Early embryo development
spellingShingle	Octopus mimus Parathion Early embryo development Gutiérrez-Pajares,Jorge L. Olivares,Alberto Bustos-Obregón,Eduardo Octopus mimus (MOLLUSCA: CEPHALOPODA) EMBRYO MISDEVELOPMENT DUE TO CHRONIC EXPOSURE TO THE ORGANOSPHOSPHORUS PESTICICE PARATHON
description	Pesticides are of ample worldwide use. At present there is a growing concern about seawater contamination by these chemicals. Developing aquatic organisms are particularly at risk. For this reason, early development of Octopus mimus embryos under exposure to commercial Parathion was examined. Concentrations over 0.4 mM of the pesticide altered formation of the embryonic disc at the blastula stage, resulting in abnormal gastrulation and arrest of further development. This toxic effect may be due to the blockade of DNA synthesis elicited by organophosphoric pesticides causing diminished number of blastodermic cells at the time of epiboly, thus hindering the start of invagination. Seawater contamination seems, therefore, of relevance for survival of exposed aquatic species.
author	Gutiérrez-Pajares,Jorge L. Olivares,Alberto Bustos-Obregón,Eduardo
author_facet	Gutiérrez-Pajares,Jorge L. Olivares,Alberto Bustos-Obregón,Eduardo
author_sort	Gutiérrez-Pajares,Jorge L.
title	Octopus mimus (MOLLUSCA: CEPHALOPODA) EMBRYO MISDEVELOPMENT DUE TO CHRONIC EXPOSURE TO THE ORGANOSPHOSPHORUS PESTICICE PARATHON
title_short	Octopus mimus (MOLLUSCA: CEPHALOPODA) EMBRYO MISDEVELOPMENT DUE TO CHRONIC EXPOSURE TO THE ORGANOSPHOSPHORUS PESTICICE PARATHON
title_full	Octopus mimus (MOLLUSCA: CEPHALOPODA) EMBRYO MISDEVELOPMENT DUE TO CHRONIC EXPOSURE TO THE ORGANOSPHOSPHORUS PESTICICE PARATHON
title_fullStr	Octopus mimus (MOLLUSCA: CEPHALOPODA) EMBRYO MISDEVELOPMENT DUE TO CHRONIC EXPOSURE TO THE ORGANOSPHOSPHORUS PESTICICE PARATHON
title_full_unstemmed	Octopus mimus (MOLLUSCA: CEPHALOPODA) EMBRYO MISDEVELOPMENT DUE TO CHRONIC EXPOSURE TO THE ORGANOSPHOSPHORUS PESTICICE PARATHON
title_sort	octopus mimus (mollusca: cephalopoda) embryo misdevelopment due to chronic exposure to the organosphosphorus pesticice parathon
publisher	Sociedad Chilena de Anatomía
publishDate	2003
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022003000300011
work_keys_str_mv	AT gutierrezpajaresjorgel octopusmimusmolluscacephalopodaembryomisdevelopmentduetochronicexposuretotheorganosphosphoruspesticiceparathon AT olivaresalberto octopusmimusmolluscacephalopodaembryomisdevelopmentduetochronicexposuretotheorganosphosphoruspesticiceparathon AT bustosobregoneduardo octopusmimusmolluscacephalopodaembryomisdevelopmentduetochronicexposuretotheorganosphosphoruspesticiceparathon
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Octopus mimus (MOLLUSCA: CEPHALOPODA) EMBRYO MISDEVELOPMENT DUE TO CHRONIC EXPOSURE TO THE ORGANOSPHOSPHORUS PESTICICE PARATHON

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