2008
DOI: 10.1590/s0100-54052008000100007
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Abstract: Dois antagonistas selecionados para o biocontrole da vassoura-de-bruxa do cacaueiro foram avaliados quanto à capacidade em ativar mecanismos de defesa de plantas contra patógenos. Para tanto, mudas seminais de cacaueiro "comum" foram cultivadas em casa-de-vegetação por 30 dias e expostas aos antagonistas aplicados a mudas de cacaueiro por atomização, individualmente e em associação. O primeiro par de folhas das mudas dos diferentes tratamentos foi coletado aos dois, quatro, 12 e 24 dias após a exposição aos an… Show more

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Cited by 6 publications
(6 citation statements)
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References 11 publications
(7 reference statements)
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“…The highest chitinase enzyme activity in inoculated plants is a previously reported in cocoa trees (Macagnan et al, 2008) and in other inoculated plants (Agrios, 2005;Campos et al, 2009). Since they are enzymes related to pathogenesis, peroxidases and chitinases, they are activated by SAR (systemic acquired resistance), which is induced by pathogens or chemical inductors (Siegrist et al, 2000).…”
Section: Resultsmentioning
confidence: 85%
See 1 more Smart Citation
“…The highest chitinase enzyme activity in inoculated plants is a previously reported in cocoa trees (Macagnan et al, 2008) and in other inoculated plants (Agrios, 2005;Campos et al, 2009). Since they are enzymes related to pathogenesis, peroxidases and chitinases, they are activated by SAR (systemic acquired resistance), which is induced by pathogens or chemical inductors (Siegrist et al, 2000).…”
Section: Resultsmentioning
confidence: 85%
“…This POD increase over time might also be resulting from leaf maturation. Due to the fact that these enzymes are involved in the formation of plant cell wall, specially leaves, having their activity reduced with complete leaf expansion (Macagnan et al, 2008).…”
Section: Resultsmentioning
confidence: 99%
“…The phenylalanine ammonia lyase production is regulated during plant growth, but is also induced in cells adjacent to the infection site by different environmental stimuli, such as infection, injury, contamination by heavy metals, light and growth regulators (Rahman & Punja 2005). According to Baysal et al (2003) and Macagnan et al (2008), changes in the activity of key enzymes such as lipoxygenase and phenylalanine ammonia lyase make it possible to monitor induced resistance in plants, when exposed to pathogens.…”
Section: Resultsmentioning
confidence: 99%
“…Neste processo não há qualquer alteração no genoma do vegetal, ocorrendo apenas a ativação de mecanismos latentes, frente a indutores externos (23). Dentre estes mecanismos, destaca-se a ativação de enzimas que permitem acompanhar o estado de indução de resistência em plantas expostas a patógenos (13).…”
Section: Dias Após Inoculaçãounclassified