Data/hora: 13/06/2024 04:01:06

Provedor de dados: 	3	
País: 	Brazil	
Título: 	Evaluation of the potential of Pontederia parviflora Alexander in the absorption of copper (Cu) and its effects on tissues - doi: 10.4025/actascibiolsci.v32i3.3940

Evaluation of the potential of Pontederia parviflora Alexander in the absorption of copper (Cu) and its effects on tissues - doi: 10.4025/actascibiolsci.v32i3.3940	
Autores: 	Balassa, Graziela Custodio; Universidade Tecnológica Federal do Paraná; Souza, Débora Cristina de; Universidade Tecnológica Federal do Paraná - Campus Campo Mourão; Lima, Sônia Barbosa de; Universidade Tecnológica Federal do Paraná - Campus Campo Mourão.	
Data: 	2010-09-15	
Ano: 	2010	
Palavras-chave: 	2.05.03.00-8 aquatic macrophyte; Phytoremediation; Copper Ecologia aplicada aquatic macrophyte; Phytoremediation; Copper.	
Resumo: 	The study sought to evaluate the potential of the aquatic macrophyte Pontederia parviflora Alexander in the absorption of copper (Cu) and possible variations in its tissues after 21 days of exposure to this metal. The concentration of Cu was analyzed in the solution and in the vegetal tissues (stem, root and leaves). The experiment was set up in triplicates with weekly measurements of pH, temperature and DO. The results indicated that P. parviflora reduced 96% of Cu in the solution and the root was the vegetal tissue, which accumulated more Cu. Values of pH, DO and temperature were in accordance with the metabolic activities of the plants. In the anatomic analyses, dark spots were identified in the vascular bundles and in the epidermis of the aerial parts, highlighting the variation resulting from the presence of this substance. However, these variations were not sufficient to damage the development of the individuals. P. parviflora showed high capacity of extraction and storage of the metal, being a good alternative to aquatic environments with high concentrations of Cu.	
Idioma: 	Português	
Identificador: 	http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/3940

10.4025/actascibiolsci.v32i3.3940	
Editor: 	Universidade Estadual De Maringá	
Formato: 	application/pdf

application/pdf	
Fonte: 	Acta Scientiarum. Biological Sciences; v. 32, n. 3 (2010); 311-316

Acta Scientiarum. Biological Sciences; v. 32, n. 3 (2010); 311-316	
Fonte: 	DECLARATION OF ORIGINALITY AND CESSATION OF COPYRIGHTI Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal. I also declare that once published in the Acta Scientiarum. Biological Sciences, a publication of the Universidade Estadual de Maringá, it will not be submitted by me or by any co-author to any other scientific communication mean. In my name and in the name of co-authors, I shall cede the copyright of the above mentioned article to the Universidade Estadual de Maringá and I declare that I know that the non-observance of this norm may make me liable for the penalties contemplated in the Law for the Protection of Authors’ Rights (Act 9609 of the 19th February 1998).

DECLARAÇÃO DE ORIGINALIDADE E CESSÃO DE DIREITOS AUTORAIS  Declaro que o presente artigo é original, não tendo sido submetido à publicação em qualquer outro periódico nacional ou internacional, quer seja em parte ou em sua totalidade. Declaro, ainda, que uma vez publicado na revista Acta Scientiarum. Biological Sciences, editada pela Universidade Estadual de Maringá, o mesmo jamais será submetido por mim ou por qualquer um dos demais co-autores a qualquer outro meio de divulgação científica. Através deste instrumento, em meu nome e em nome dos demais co-autores, porventura existentes, cedo os direitos autorais do referido artigo à Universidade Estadual de Maringá e declaro estar ciente de que a não observância deste compromisso submeterá o infrator a sanções e penas previstas na Lei de Proteção de Direitos Autorias (Nº9609, de 19/02/98).