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	Provedor de dados BABT (2) Autor Machado,Marcelo Rubens (2) Fanta,Edith (1) Palavra-chave Carbon dioxide (1) Climate change biology (1) Fish (1) Gill (1) Global warming (1) Methyl parathion (1) Morphology (1) Plant cell (1) Stomata (1) Toxicity (1) Waxes (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2014 (1) 2003 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Plant cells in the context of climate change BABT Machado,Marcelo Rubens. Global warming and its origins triggered the beginning to considerable discussion in the last century. Studies of climate models presented in multidisciplinary scientific reports suggest that anthropogenic activities, particularly the emission of gases from the greenhouse effect, are greatly responsible for the current climate changes. The increase of carbon dioxide (CO2) atmospheric concentration has been in discussion in the news, scientific meetings and in public policy debates in several countries. Apart from its impact on global warming, the rising atmospheric CO2 has alerted the scientific community to the need to investigate any morpho-physiological alterations in the plants, given their direct influence on photosynthesis. This article aims to... Tipo: Info:eu-repo/semantics/article Palavras-chave: Carbon dioxide; Global warming; Stomata; Climate change biology; Plant cell; Waxes. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000100018 Effects of the organophosphorous methyl parathion on the branchial epithelium of a freshwater fish Metynnis roosevelti BABT Machado,Marcelo Rubens; Fanta,Edith. Gills are vital structures for fish, since they are the main site for gaseous exchange as well as partially responsible for osmorregulation, acid-basic balance, excretion of nitrogenous compounds and taste. Chemicals in the water may alter the morphology of branchial cells of fish that are, therefore, a useful model for environmental impact and ecotoxicology studies. In order to investigate the effects of an organophosphorous compound, methyl parathion, on the gills of the fish, samples of Metynnis roosevelti were exposed to lethal (7ppm) and sublethal (1ppm) doses of Mentox 600 CE. Through light and scanning electron microscopy, shrinking of the branchial epithelium, followed by detachment and hyperplasia were observed. Externally, the branchial filaments... Tipo: Info:eu-repo/semantics/article Palavras-chave: Gill; Fish; Methyl parathion; Toxicity; Morphology. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000300008 Registros recuperados: 2 Primeira ... 1 ... Última

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