Data/hora: 01/06/2024 01:29:25

Provedor de dados: 	61	
País: 	Brazil	
Título: 	Effect of Methyl Jasmonate on antioxidative enzyme activities and on the contents of ROS and H2O2 in Ricinus communis leaves	
Autores: 	Soares,Alexandra Martins dos Santos; Souza,Thiago Freitas de; Jacinto,Tânia; Machado,Olga Lima Tavares.	
Data: 	2010-01-01	
Ano: 	2010	
Palavras-chave: 	Methyl jasmonate; Oxidative stress; Antioxidant enzymatic defenses; Catalase; Superoxide dismutase; Peroxidase; Ricinus comunnis; Signal transduction.	
Resumo: 	Jasmonates are a class of plant hormones that mediate various aspects in gene and metabolic regulation, defense, stress responses, reproduction and, possibly, communication. Oxidative stress stimulates synthesis of antioxidant metabolites and enhances antioxidant enzyme activities that could protect plant tissues. The aim of this study was to verify the effects of methyl jasmonate (JAME) treatment on the reactive oxygen species (ROS) and on the activities of H2O2 scavenging enzymes, such as superoxide dismutase (SOD; EC 1.15.1.1), catalase (CAT; EC 1.11.1.6), ascorbate peroxidase (APX EC; 1.11.1.1), and guaiacol peroxidase (GPX; EC 1.11.1.7) in Ricinus communis leaves. The activity of CAT and GPX was transient while SOD activity decreased and APX increased after treatment with JAME. In addition, JAME exposure induced ROS accumulation.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202010000300001	
Editor: 	Brazilian Journal of Plant Physiology	
Relação: 	10.1590/S1677-04202010000300001	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Plant Physiology  v.22 n.3 2010	
Fonte: 	info:eu-repo/semantics/openAccess