Induction of defense in apples by sulfated and deacetylated chichá gum.
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1133042 https://doi.org/10.1590/0104-1428.08820 |
Resumo: | Elicitors activate the defense mechanism in plants to resist pathogens. Ulvans and glucuronans can act as elicitors, and their activity seems to be related to the sulfate groups, rhamnose and uronic acid monosaccharides. Chichá gum (CHG), which also contains rhamnose and uronic acid, was sulfated with chlorosulfonic acid/N,N-dimethylformamide and deacetylated with sodium hydroxide solution. The changes were confirmed by infrared spectroscopy. Carbon-13 NMR revealed that sulfation occurred in galactose and rhamnose units. The apples were sprayed with water (negative control), deacetylated chichá gum (DCHG), and sulfated chichá gum (SCHG). The activity of enzymes guaiacol peroxidase and polyphenol oxidases and the lignin content were compared with those under the action of a commercial elicitor, benzothiadiazole. DCHG, and especially SCHG, increased the activity of the two enzymes. Only fruits treated with SCHG showed a significant (p<0.05) increase in lignin content. The plant exudate can be one abundant, renewable and safe source of elicitors. Keywords: benzothiadiazole (BTH), Sterculia striata, elicitor, polysaccharide, sulfation. |
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Induction of defense in apples by sulfated and deacetylated chichá gum.Benzothiadiazole (BTH)ElicitorPolysaccharideSulfationSterculia striataElicitors activate the defense mechanism in plants to resist pathogens. Ulvans and glucuronans can act as elicitors, and their activity seems to be related to the sulfate groups, rhamnose and uronic acid monosaccharides. Chichá gum (CHG), which also contains rhamnose and uronic acid, was sulfated with chlorosulfonic acid/N,N-dimethylformamide and deacetylated with sodium hydroxide solution. The changes were confirmed by infrared spectroscopy. Carbon-13 NMR revealed that sulfation occurred in galactose and rhamnose units. The apples were sprayed with water (negative control), deacetylated chichá gum (DCHG), and sulfated chichá gum (SCHG). The activity of enzymes guaiacol peroxidase and polyphenol oxidases and the lignin content were compared with those under the action of a commercial elicitor, benzothiadiazole. DCHG, and especially SCHG, increased the activity of the two enzymes. Only fruits treated with SCHG showed a significant (p<0.05) increase in lignin content. The plant exudate can be one abundant, renewable and safe source of elicitors. Keywords: benzothiadiazole (BTH), Sterculia striata, elicitor, polysaccharide, sulfation.CARLOS PINHEIRO CHAGAS DE LIMA, Laboratório de Polímeros - LabPol, Departamento de Química Orgânica e Inorgânica - DQOI, Universidade Federal do Ceará - UFC, Fortaleza, CE, Brasil; ANDREIA HANSEN OSTER, CNPUV; FABIO ROSSI CAVALCANTI, CNPUV; REGINA CÉLIA MONTEIRO DE PAULA, Laboratório de Polímeros - LabPol, Departamento de Química Orgânica e Inorgânica - DQOI, Universidade Federal do Ceará - UFC, Fortaleza, CE, Brasil; JUDITH PESSOA ANDRADE FEITOSA, Laboratório de Polímeros - LabPol, Departamento de Química Orgânica e Inorgânica - DQOI, Universidade Federal do Ceará - UFC, Fortaleza, CE, Brasil.LIMA, C. P. C. deOSTER, A. H.CAVALCANTI, F. R.PAULA, R. C. M. deFEITOSA, J. P. A.2021-07-20T14:01:22Z2021-07-20T14:01:22Z2021-07-202021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePolímeros, v. 31, n. 1, e2021010, p. 1-8, julho 2021.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1133042https://doi.org/10.1590/0104-1428.08820enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2021-07-20T14:01:30Zoai:www.alice.cnptia.embrapa.br:doc/1133042Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542021-07-20T14:01:30falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542021-07-20T14:01:30Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Induction of defense in apples by sulfated and deacetylated chichá gum. |
title |
Induction of defense in apples by sulfated and deacetylated chichá gum. |
spellingShingle |
Induction of defense in apples by sulfated and deacetylated chichá gum. LIMA, C. P. C. de Benzothiadiazole (BTH) Elicitor Polysaccharide Sulfation Sterculia striata |
title_short |
Induction of defense in apples by sulfated and deacetylated chichá gum. |
title_full |
Induction of defense in apples by sulfated and deacetylated chichá gum. |
title_fullStr |
Induction of defense in apples by sulfated and deacetylated chichá gum. |
title_full_unstemmed |
Induction of defense in apples by sulfated and deacetylated chichá gum. |
title_sort |
Induction of defense in apples by sulfated and deacetylated chichá gum. |
author |
LIMA, C. P. C. de |
author_facet |
LIMA, C. P. C. de OSTER, A. H. CAVALCANTI, F. R. PAULA, R. C. M. de FEITOSA, J. P. A. |
author_role |
author |
author2 |
OSTER, A. H. CAVALCANTI, F. R. PAULA, R. C. M. de FEITOSA, J. P. A. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
CARLOS PINHEIRO CHAGAS DE LIMA, Laboratório de Polímeros - LabPol, Departamento de Química Orgânica e Inorgânica - DQOI, Universidade Federal do Ceará - UFC, Fortaleza, CE, Brasil; ANDREIA HANSEN OSTER, CNPUV; FABIO ROSSI CAVALCANTI, CNPUV; REGINA CÉLIA MONTEIRO DE PAULA, Laboratório de Polímeros - LabPol, Departamento de Química Orgânica e Inorgânica - DQOI, Universidade Federal do Ceará - UFC, Fortaleza, CE, Brasil; JUDITH PESSOA ANDRADE FEITOSA, Laboratório de Polímeros - LabPol, Departamento de Química Orgânica e Inorgânica - DQOI, Universidade Federal do Ceará - UFC, Fortaleza, CE, Brasil. |
dc.contributor.author.fl_str_mv |
LIMA, C. P. C. de OSTER, A. H. CAVALCANTI, F. R. PAULA, R. C. M. de FEITOSA, J. P. A. |
dc.subject.por.fl_str_mv |
Benzothiadiazole (BTH) Elicitor Polysaccharide Sulfation Sterculia striata |
topic |
Benzothiadiazole (BTH) Elicitor Polysaccharide Sulfation Sterculia striata |
description |
Elicitors activate the defense mechanism in plants to resist pathogens. Ulvans and glucuronans can act as elicitors, and their activity seems to be related to the sulfate groups, rhamnose and uronic acid monosaccharides. Chichá gum (CHG), which also contains rhamnose and uronic acid, was sulfated with chlorosulfonic acid/N,N-dimethylformamide and deacetylated with sodium hydroxide solution. The changes were confirmed by infrared spectroscopy. Carbon-13 NMR revealed that sulfation occurred in galactose and rhamnose units. The apples were sprayed with water (negative control), deacetylated chichá gum (DCHG), and sulfated chichá gum (SCHG). The activity of enzymes guaiacol peroxidase and polyphenol oxidases and the lignin content were compared with those under the action of a commercial elicitor, benzothiadiazole. DCHG, and especially SCHG, increased the activity of the two enzymes. Only fruits treated with SCHG showed a significant (p<0.05) increase in lignin content. The plant exudate can be one abundant, renewable and safe source of elicitors. Keywords: benzothiadiazole (BTH), Sterculia striata, elicitor, polysaccharide, sulfation. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-07-20T14:01:22Z 2021-07-20T14:01:22Z 2021-07-20 2021 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Polímeros, v. 31, n. 1, e2021010, p. 1-8, julho 2021. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1133042 https://doi.org/10.1590/0104-1428.08820 |
identifier_str_mv |
Polímeros, v. 31, n. 1, e2021010, p. 1-8, julho 2021. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1133042 https://doi.org/10.1590/0104-1428.08820 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
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Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
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EMBRAPA |
institution |
EMBRAPA |
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Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503507069370368 |