Essential oils in the management of Alternaria alternata f. sp. citri in ‘Dancy’ tangerine fruits
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Caatinga |
Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/10831 |
Resumo: | Tangerines and their hybrids are affected by economically essential diseases. The Alternaria brown spot (Alternaria alternata f. sp. citri) deserves to be highlighted, as it is present in all tangerine production areas. This study aimed to determine the effect of essential oils on A. alternata f. sp. citri. The experiments were carried out in the Laboratories of Phytopathology and Biology and Technology of Post-Harvest of the Federal University of Paraíba, Areia, PB. Three pathogen isolates were used, and ten essential oils from grape, sunflower, eucalyptus, ginger, copaiba, mint, fennel, citronella, clove, and linseed at a concentration of 1%, diluted in potato dextrose agar for in vitro tests. The oils were diluted in distilled water for the fruit test, and the fruits were immersed in the treatments for 5 min. In addition, the fungicide Thiabendazole (400 mL/100L) and sterile distilled water were used as the control treatments. The fruits were inoculated with a conidia suspension of the pathogen (105 conidia/mL). Mycelial Growth Rate Index, colony diameter, spore production and dimensions, fruit disease severity, and enzymatic activity were evaluated. A completely randomized design was used, with 12 treatments and four replications in vivo. The results indicate that the essential oils of mint, eucalyptus, fennel, and citronella were efficient in the in vitro control of the pathogen, ultimately inhibiting the growth of fungal colonies. Eucalyptus oil efficiently managed A. alternata f. sp. citri on ‘Dancy’ tangerine fruits. Essential oils did not influence the enzymatic activity of the fruits. |
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Essential oils in the management of Alternaria alternata f. sp. citri in ‘Dancy’ tangerine fruitsÓleos essenciais no manejo de Alternaria alternata f. sp. citri em frutos de tangerineira ‘Dancy’Atividade fungitóxica. Citrus tangerina hort. ex Tanaka. Controle alternativo. Mancha marrom de alternaria.Fungitoxic activity. Citrus tangerine hort. ex Tanaka. Alternative control. Alternaria brown spot.Tangerines and their hybrids are affected by economically essential diseases. The Alternaria brown spot (Alternaria alternata f. sp. citri) deserves to be highlighted, as it is present in all tangerine production areas. This study aimed to determine the effect of essential oils on A. alternata f. sp. citri. The experiments were carried out in the Laboratories of Phytopathology and Biology and Technology of Post-Harvest of the Federal University of Paraíba, Areia, PB. Three pathogen isolates were used, and ten essential oils from grape, sunflower, eucalyptus, ginger, copaiba, mint, fennel, citronella, clove, and linseed at a concentration of 1%, diluted in potato dextrose agar for in vitro tests. The oils were diluted in distilled water for the fruit test, and the fruits were immersed in the treatments for 5 min. In addition, the fungicide Thiabendazole (400 mL/100L) and sterile distilled water were used as the control treatments. The fruits were inoculated with a conidia suspension of the pathogen (105 conidia/mL). Mycelial Growth Rate Index, colony diameter, spore production and dimensions, fruit disease severity, and enzymatic activity were evaluated. A completely randomized design was used, with 12 treatments and four replications in vivo. The results indicate that the essential oils of mint, eucalyptus, fennel, and citronella were efficient in the in vitro control of the pathogen, ultimately inhibiting the growth of fungal colonies. Eucalyptus oil efficiently managed A. alternata f. sp. citri on ‘Dancy’ tangerine fruits. Essential oils did not influence the enzymatic activity of the fruits.As tangerineiras e seus híbridos são acometidos por doenças economicamente importantes. Merece destaque a mancha marrom de Alternaria (Alternaria alternata f. sp. citri), por estar presente em todas as áreas de produção de tangerinas. Esse trabalho objetivou determinar o efeito de óleos essenciais sobre A. alternata f. sp. citri. Os experimentos foram conduzidos no Laboratório de Fitopatologia, e no laboratório de Biologia e Tecnologia Pós-Colheita da Universidade Federal da Paraíba, Areia, PB. Foram utilizados três isolados do patógeno, e dez óleos essenciais de sementes de uva, girassol, eucalipto, gengibre, copaíba, menta, erva-doce, citronela, cravo e linhaça na concentração de 1%, diluídos em meio de cultura batata-dextrose-ágar, para os testes in vitro. Para o teste nos frutos os óleos foram diluídos em água destilada e os frutos imersos nos tratamentos por 5 min. Além do fungicida Tiabendazol (400 mL/100L) e água destilada estéril consistiram nas testemunhas. Os frutos foram inoculados com suspensão de conídios do patógeno (105 conídios/mL). Avaliou-se o índice de velocidade de crescimento micelial, diâmetro de colônia, produção e dimensões de esporos, severidade da doença em frutos e atividade enzimática. Utilizou-se o delineamento inteiramente casualizado, com 12 tratamentos e quatro repetições in vivo. Os resultados indicam que, os óleos essenciais de menta, eucalipto, erva-doce e citronela foram eficientes no controle in vitro do patógeno, inibindo totalmente o crescimento das colônias fúngicas. O óleo de eucalipto foi eficiente no manejo de A. alternata f. sp. citri em frutos de tangerineira ‘Dancy’. Os óleos essenciais não influenciaram na atividade enzimática dos frutos. Universidade Federal Rural do Semi-Árido2023-02-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/1083110.1590/1983-21252023v36n206rcREVISTA CAATINGA; Vol. 36 No. 2 (2023); 291-299Revista Caatinga; v. 36 n. 2 (2023); 291-2991983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/10831/11138Copyright (c) 2023 Revista Caatingainfo:eu-repo/semantics/openAccessPorcino, Mirelly MiguelOliveira, Valdeir de Souza Silva , Hilderlande Florêncio da Souza, Mileny dos Santos de Nascimento , Luciana Cordeiro do 2023-07-27T11:52:09Zoai:ojs.periodicos.ufersa.edu.br:article/10831Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:59.009548Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
dc.title.none.fl_str_mv |
Essential oils in the management of Alternaria alternata f. sp. citri in ‘Dancy’ tangerine fruits Óleos essenciais no manejo de Alternaria alternata f. sp. citri em frutos de tangerineira ‘Dancy’ |
title |
Essential oils in the management of Alternaria alternata f. sp. citri in ‘Dancy’ tangerine fruits |
spellingShingle |
Essential oils in the management of Alternaria alternata f. sp. citri in ‘Dancy’ tangerine fruits Porcino, Mirelly Miguel Atividade fungitóxica. Citrus tangerina hort. ex Tanaka. Controle alternativo. Mancha marrom de alternaria. Fungitoxic activity. Citrus tangerine hort. ex Tanaka. Alternative control. Alternaria brown spot. |
title_short |
Essential oils in the management of Alternaria alternata f. sp. citri in ‘Dancy’ tangerine fruits |
title_full |
Essential oils in the management of Alternaria alternata f. sp. citri in ‘Dancy’ tangerine fruits |
title_fullStr |
Essential oils in the management of Alternaria alternata f. sp. citri in ‘Dancy’ tangerine fruits |
title_full_unstemmed |
Essential oils in the management of Alternaria alternata f. sp. citri in ‘Dancy’ tangerine fruits |
title_sort |
Essential oils in the management of Alternaria alternata f. sp. citri in ‘Dancy’ tangerine fruits |
author |
Porcino, Mirelly Miguel |
author_facet |
Porcino, Mirelly Miguel Oliveira, Valdeir de Souza Silva , Hilderlande Florêncio da Souza, Mileny dos Santos de Nascimento , Luciana Cordeiro do |
author_role |
author |
author2 |
Oliveira, Valdeir de Souza Silva , Hilderlande Florêncio da Souza, Mileny dos Santos de Nascimento , Luciana Cordeiro do |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Porcino, Mirelly Miguel Oliveira, Valdeir de Souza Silva , Hilderlande Florêncio da Souza, Mileny dos Santos de Nascimento , Luciana Cordeiro do |
dc.subject.por.fl_str_mv |
Atividade fungitóxica. Citrus tangerina hort. ex Tanaka. Controle alternativo. Mancha marrom de alternaria. Fungitoxic activity. Citrus tangerine hort. ex Tanaka. Alternative control. Alternaria brown spot. |
topic |
Atividade fungitóxica. Citrus tangerina hort. ex Tanaka. Controle alternativo. Mancha marrom de alternaria. Fungitoxic activity. Citrus tangerine hort. ex Tanaka. Alternative control. Alternaria brown spot. |
description |
Tangerines and their hybrids are affected by economically essential diseases. The Alternaria brown spot (Alternaria alternata f. sp. citri) deserves to be highlighted, as it is present in all tangerine production areas. This study aimed to determine the effect of essential oils on A. alternata f. sp. citri. The experiments were carried out in the Laboratories of Phytopathology and Biology and Technology of Post-Harvest of the Federal University of Paraíba, Areia, PB. Three pathogen isolates were used, and ten essential oils from grape, sunflower, eucalyptus, ginger, copaiba, mint, fennel, citronella, clove, and linseed at a concentration of 1%, diluted in potato dextrose agar for in vitro tests. The oils were diluted in distilled water for the fruit test, and the fruits were immersed in the treatments for 5 min. In addition, the fungicide Thiabendazole (400 mL/100L) and sterile distilled water were used as the control treatments. The fruits were inoculated with a conidia suspension of the pathogen (105 conidia/mL). Mycelial Growth Rate Index, colony diameter, spore production and dimensions, fruit disease severity, and enzymatic activity were evaluated. A completely randomized design was used, with 12 treatments and four replications in vivo. The results indicate that the essential oils of mint, eucalyptus, fennel, and citronella were efficient in the in vitro control of the pathogen, ultimately inhibiting the growth of fungal colonies. Eucalyptus oil efficiently managed A. alternata f. sp. citri on ‘Dancy’ tangerine fruits. Essential oils did not influence the enzymatic activity of the fruits. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-02-28 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/10831 10.1590/1983-21252023v36n206rc |
url |
https://periodicos.ufersa.edu.br/caatinga/article/view/10831 |
identifier_str_mv |
10.1590/1983-21252023v36n206rc |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/10831/11138 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2023 Revista Caatinga info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2023 Revista Caatinga |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 36 No. 2 (2023); 291-299 Revista Caatinga; v. 36 n. 2 (2023); 291-299 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
instname_str |
Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
reponame_str |
Revista Caatinga |
collection |
Revista Caatinga |
repository.name.fl_str_mv |
Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
_version_ |
1797674029592608768 |