| Registro completo |
| Provedor de dados: |
Braz. J. Plant Physiol.
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| País: |
Brazil
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| Título: |
Effect of Methyl Jasmonate on antioxidative enzyme activities and on the contents of ROS and H2O2 in Ricinus communis leaves
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| Autores: |
Soares,Alexandra Martins dos Santos
Souza,Thiago Freitas de
Jacinto,Tânia
Machado,Olga Lima Tavares
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| Data: |
2010-01-01
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| Ano: |
2010
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| Palavras-chave: |
Methyl jasmonate
Oxidative stress
Antioxidant enzymatic defenses
Catalase
Superoxide dismutase
Peroxidase
Ricinus comunnis
Signal transduction
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| 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.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202010000300001
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| Editor: |
Brazilian Journal of Plant Physiology
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| Relação: |
10.1590/S1677-04202010000300001
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| Formato: |
text/html
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| Fonte: |
Brazilian Journal of Plant Physiology v.22 n.3 2010
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| Direitos: |
info:eu-repo/semantics/openAccess
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