Data/hora: 02/06/2024 19:08:51

Provedor de dados: | Planta Daninha
País: | Brazil
Título: | Polygala extraaxillaris: oxidative stress in Brachiaria decumbens mediated by volatile oils
Autores: | Silva,C.B.; Simionatto,E.; Gebara,S.S.; Poppi,N.R.; Cândido,A.C.S.; Lima,C.P.; Dias,J.F.G.; Zanin,S.M.W.; Peres,M.T.L.P.; Moreira,T.F.; Miguel,O.G.; Miguel,M.D.
Data: | 2013-12-01
Ano: | 2013
Palavras-chave: | Reactive oxygen species; Antioxidant enzymes; Plant defense; Signal grass.
Resumo: | The volatile oils extracted from the roots of Polygala extraaxillaris were analyzed to assess whether they increase oxidative stress in Brachiaria decumbens var. Piatã, as well as to assess their effect on cellular division and cytotoxicity in laboratory. Six concentrations were used (0%, 0.35%, 0.65%, 1.25%, 0.65%, and 5.0%) with four repetitions of 25 seeds. The substance 1-(2-hydroxyphenyl) - ethanone was identified as the major constituent of the volatile oils. The results showed that the highest concentrations of the oils resulted in an increase in the oxidative stress in B. decumbens, as well as alteration in germination and growth, with a consequent reduction in the process of cellular division, causing changes in the growth standard and antioxidant defense.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000400005
Editor: | Sociedade Brasileira da Ciência das Plantas Daninhas
Relação: | 10.1590/S0100-83582013000400005
Formato: | text/html
Fonte: | Planta Daninha  v.31 n.4 2013
Fonte: | info:eu-repo/semantics/openAccess