Data/hora: 02/06/2024 10:45:19

Provedor de dados: 	77	
País: 	Chile	
Título: 	Octopus mimus (MOLLUSCA: CEPHALOPODA) EMBRYO MISDEVELOPMENT DUE TO CHRONIC EXPOSURE TO THE ORGANOSPHOSPHORUS PESTICICE PARATHON	
Autores: 	Gutiérrez-Pajares,Jorge L.; Olivares,Alberto; Bustos-Obregón,Eduardo.	
Data: 	2003-01-01	
Ano: 	2003	
Palavras-chave: 	Octopus mimus; Parathion; Early embryo development.	
Resumo: 	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.	
Tipo: 	Journal article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022003000300011	
Editor: 	Sociedad Chilena de Anatomía	
Formato: 	text/html	
Fonte: 	International Journal of Morphology  v.21 n.3 2003