Induction of defense enzymes and control of anthracnose in cucumber by Corymbia citriodora aqueous extract
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Summa phytopathologica (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052018000100010 |
Resumo: | ABSTRACT Secondary compounds of medicinal plants can activate defense mechanisms in plants against pathogens. The aqueous extract (AE) of Corymbia citriodora has shown that activity, but there is scarce information about the involved mechanisms of action. Therefore, this study aimed to evaluate the effect of AE on the induction of defense enzymes and protection of cucumber from Colletotrichum lagenarium. Thus, the AE, autoclaved or not, was evaluated for its capability of protecting and inducing peroxidases, polyphenoloxidases, chitinases and β-1.3-glucanases, and phenylalanine ammonia-lyase. Distilled water and acibenzolar-S-methyl (50 mg a.i. L-1) were used as controls. The effect of AE at the concentrations of 1, 5, 10, 15 and 20% was also evaluated, as well as its local and systemic effect, and the effect of one or two applications. Pathogen inoculation or sample collection for determination of enzyme activity was performed at 72 hours after treatments. The AE reduced the severity of C. lagenarium and induced peroxidases and β-1.3-glucanases by 37.6, 67.2 and 122.7%, respectively. There was a reduction in the disease severity and an increase in peroxidases from the concentration of 5% AE. The latter showed only local effect and greater reduction in severity when two applications were performed. These results suggest the effect of AE in inducing resistance in cucumber and inducing peroxidases and β-1.3-glucanases. |
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Induction of defense enzymes and control of anthracnose in cucumber by Corymbia citriodora aqueous extractResistance inductionalternative controlmedicinal plantABSTRACT Secondary compounds of medicinal plants can activate defense mechanisms in plants against pathogens. The aqueous extract (AE) of Corymbia citriodora has shown that activity, but there is scarce information about the involved mechanisms of action. Therefore, this study aimed to evaluate the effect of AE on the induction of defense enzymes and protection of cucumber from Colletotrichum lagenarium. Thus, the AE, autoclaved or not, was evaluated for its capability of protecting and inducing peroxidases, polyphenoloxidases, chitinases and β-1.3-glucanases, and phenylalanine ammonia-lyase. Distilled water and acibenzolar-S-methyl (50 mg a.i. L-1) were used as controls. The effect of AE at the concentrations of 1, 5, 10, 15 and 20% was also evaluated, as well as its local and systemic effect, and the effect of one or two applications. Pathogen inoculation or sample collection for determination of enzyme activity was performed at 72 hours after treatments. The AE reduced the severity of C. lagenarium and induced peroxidases and β-1.3-glucanases by 37.6, 67.2 and 122.7%, respectively. There was a reduction in the disease severity and an increase in peroxidases from the concentration of 5% AE. The latter showed only local effect and greater reduction in severity when two applications were performed. These results suggest the effect of AE in inducing resistance in cucumber and inducing peroxidases and β-1.3-glucanases.Grupo Paulista de Fitopatologia2018-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052018000100010Summa Phytopathologica v.44 n.1 2018reponame:Summa phytopathologica (Online)instname:Grupo Paulista de Fitopatologiainstacron:GPF10.1590/0100-5405/2218info:eu-repo/semantics/openAccessFranzener,GilmarSchwan-Estrada,Kátia Regina FreitasMoura,Gabriela SilvaKuhn,Odair JoséStangarlin,José Renatoeng2018-03-22T00:00:00Zoai:scielo:S0100-54052018000100010Revistahttp://www.scielo.br/sphttps://old.scielo.br/oai/scielo-oai.phpsumma@fca.unesp.br1980-54540100-5405opendoar:2018-03-22T00:00Summa phytopathologica (Online) - Grupo Paulista de Fitopatologiafalse |
dc.title.none.fl_str_mv |
Induction of defense enzymes and control of anthracnose in cucumber by Corymbia citriodora aqueous extract |
title |
Induction of defense enzymes and control of anthracnose in cucumber by Corymbia citriodora aqueous extract |
spellingShingle |
Induction of defense enzymes and control of anthracnose in cucumber by Corymbia citriodora aqueous extract Franzener,Gilmar Resistance induction alternative control medicinal plant |
title_short |
Induction of defense enzymes and control of anthracnose in cucumber by Corymbia citriodora aqueous extract |
title_full |
Induction of defense enzymes and control of anthracnose in cucumber by Corymbia citriodora aqueous extract |
title_fullStr |
Induction of defense enzymes and control of anthracnose in cucumber by Corymbia citriodora aqueous extract |
title_full_unstemmed |
Induction of defense enzymes and control of anthracnose in cucumber by Corymbia citriodora aqueous extract |
title_sort |
Induction of defense enzymes and control of anthracnose in cucumber by Corymbia citriodora aqueous extract |
author |
Franzener,Gilmar |
author_facet |
Franzener,Gilmar Schwan-Estrada,Kátia Regina Freitas Moura,Gabriela Silva Kuhn,Odair José Stangarlin,José Renato |
author_role |
author |
author2 |
Schwan-Estrada,Kátia Regina Freitas Moura,Gabriela Silva Kuhn,Odair José Stangarlin,José Renato |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Franzener,Gilmar Schwan-Estrada,Kátia Regina Freitas Moura,Gabriela Silva Kuhn,Odair José Stangarlin,José Renato |
dc.subject.por.fl_str_mv |
Resistance induction alternative control medicinal plant |
topic |
Resistance induction alternative control medicinal plant |
description |
ABSTRACT Secondary compounds of medicinal plants can activate defense mechanisms in plants against pathogens. The aqueous extract (AE) of Corymbia citriodora has shown that activity, but there is scarce information about the involved mechanisms of action. Therefore, this study aimed to evaluate the effect of AE on the induction of defense enzymes and protection of cucumber from Colletotrichum lagenarium. Thus, the AE, autoclaved or not, was evaluated for its capability of protecting and inducing peroxidases, polyphenoloxidases, chitinases and β-1.3-glucanases, and phenylalanine ammonia-lyase. Distilled water and acibenzolar-S-methyl (50 mg a.i. L-1) were used as controls. The effect of AE at the concentrations of 1, 5, 10, 15 and 20% was also evaluated, as well as its local and systemic effect, and the effect of one or two applications. Pathogen inoculation or sample collection for determination of enzyme activity was performed at 72 hours after treatments. The AE reduced the severity of C. lagenarium and induced peroxidases and β-1.3-glucanases by 37.6, 67.2 and 122.7%, respectively. There was a reduction in the disease severity and an increase in peroxidases from the concentration of 5% AE. The latter showed only local effect and greater reduction in severity when two applications were performed. These results suggest the effect of AE in inducing resistance in cucumber and inducing peroxidases and β-1.3-glucanases. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052018000100010 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052018000100010 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0100-5405/2218 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Grupo Paulista de Fitopatologia |
publisher.none.fl_str_mv |
Grupo Paulista de Fitopatologia |
dc.source.none.fl_str_mv |
Summa Phytopathologica v.44 n.1 2018 reponame:Summa phytopathologica (Online) instname:Grupo Paulista de Fitopatologia instacron:GPF |
instname_str |
Grupo Paulista de Fitopatologia |
instacron_str |
GPF |
institution |
GPF |
reponame_str |
Summa phytopathologica (Online) |
collection |
Summa phytopathologica (Online) |
repository.name.fl_str_mv |
Summa phytopathologica (Online) - Grupo Paulista de Fitopatologia |
repository.mail.fl_str_mv |
summa@fca.unesp.br |
_version_ |
1754193419039670272 |