Data/hora: 11/06/2024 12:31:40

Provedor de dados: | 53
País: | Brazil
Título: | Inducers of resistance and silicon on the activity of defense enzymes in the soybean-Phakopsora pachyrhizi interaction
Autores: | Cruz,Maria Fernanda Antunes da; Rodrigues,Fabrício Ávila; Polanco,Leonora Rodriguez; Curvêlo,Carmen Rosa da Silva; Nascimento,Kelly Juliane Telles; Moreira,Maurílio Alves; Barros,Everaldo Gonçalves.
Data: | 2013-06-01
Ano: | 2013
Palavras-chave: | Glycine max; Asian soybean rust; Induction of resistance; Mechanisms of host defense.
Resumo: | This study aimed to determine the effect of jasmonic acid (JA), Acibenzolar-S-Methyl (ASM) and calcium silicate (a source of soluble silicon, Si), on the potentiation of soybean resistance to Asian soybean rust (ASR). The ASR severity was significantly reduced on plants sprayed with ASM or supplied with Si in comparison to plants sprayed with JA or deionized water. For chitinases (CHI), significant differences in activity between non-inoculated and inoculated plants sprayed with deionized water or with ASM occurred at 72 hours after inoculation (hai), at 24 and 72 hai when sprayed with JA and at 141 hai when supplied with Si. For β-1,3-glucanases (GLU), significant differences in activity between non-inoculated and inoculated plants sprayed with deionized water occurred at 24, 48 and 141 hai, but not until 72 for plants sprayed with ASM. For phenylalanine ammonia-lyases (PAL), significant differences in activity between non-inoculated and inoculated plants occurred only for plants sprayed with ASM at 72 and 141 hai. In conclusion, the ASR symptoms can be mild on plants sprayed with ASM or supplied with Si and that this amelioration likely involved the defense enzymes.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052013000200008
Editor: | Instituto Agronômico de Campinas
Relação: | 10.1590/S0006-87052013005000025
Formato: | text/html
Fonte: | Bragantia  v.72 n.2 2013
Fonte: | info:eu-repo/semantics/openAccess