Effect of chitosan on the mycelial growth of Fusarium oxysporum, Rhizoctonia solani and Trichoderma spp.
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Atas de Saúde Ambiental |
Texto Completo: | https://revistaseletronicas.fmu.br/index.php/ASA/article/view/2107 |
Resumo: | Fungicides, often used in conventional farming systems, can harm humans, animals and damage the environment. Chitosan, which is extracted from the crustacean shell, has shown to be a harmless and cheap alternative to fungicides. This study aimed to test the inhibitory effect of chitosan on the mycelial growth of Fusarium oxysporum, Rhizoctonia solani and Trichoderma spp. Different concentrations of chitosan (0, 1, 2, 4, 8 and 16%) were supplemented to 1% acetic acid Potato Dextrose Agar (PDA). The fungi were inoculated in the center of the plates, incubated at 25 °C, with or without a 12-hour photoperiod. Daily measurements were performed in two transverse diameters until the mycelium reached the edges of the Petri dish. Fusarium oxysporum mycelial growth was significantly inhibited by chitosan at concentrations 1, 2, 4, and 8%, on the 4th, 5th and 6th evaluation days, in a 12-hour photoperiod. However, for Rhizoctonia solani, there was no reduction on mycelial growth. Trichoderma spp. presented the greatest mycelial reduction, in both light schemes, in all the concentrations evaluated, on days one, two and three. The results indicate that the mycelial growth of Fusarium oxysporum and Trichoderma spp. were inhibited by chitosan. Although, the combined use of chitosan and Trichoderma spp. as biocontrol agents of phytopathogens is not indicated. |
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Effect of chitosan on the mycelial growth of Fusarium oxysporum, Rhizoctonia solani and Trichoderma spp.EFEITO DA QUITOSANA NO CRESCIMENTO MICELIAL DE FUSARIUM OXYSPORUM, RHIZOCTONIA SOLANI E TRICHODERMA SPP.biofungicidecontrolfungishrimpbiofungicidacamarãocontrolefungos.Fungicides, often used in conventional farming systems, can harm humans, animals and damage the environment. Chitosan, which is extracted from the crustacean shell, has shown to be a harmless and cheap alternative to fungicides. This study aimed to test the inhibitory effect of chitosan on the mycelial growth of Fusarium oxysporum, Rhizoctonia solani and Trichoderma spp. Different concentrations of chitosan (0, 1, 2, 4, 8 and 16%) were supplemented to 1% acetic acid Potato Dextrose Agar (PDA). The fungi were inoculated in the center of the plates, incubated at 25 °C, with or without a 12-hour photoperiod. Daily measurements were performed in two transverse diameters until the mycelium reached the edges of the Petri dish. Fusarium oxysporum mycelial growth was significantly inhibited by chitosan at concentrations 1, 2, 4, and 8%, on the 4th, 5th and 6th evaluation days, in a 12-hour photoperiod. However, for Rhizoctonia solani, there was no reduction on mycelial growth. Trichoderma spp. presented the greatest mycelial reduction, in both light schemes, in all the concentrations evaluated, on days one, two and three. The results indicate that the mycelial growth of Fusarium oxysporum and Trichoderma spp. were inhibited by chitosan. Although, the combined use of chitosan and Trichoderma spp. as biocontrol agents of phytopathogens is not indicated.Os fungicidas, frequentemente utilizados em sistemas agrícolas convencionais, podem prejudicar seres humanos, animais e danificar o meio ambiente. A quitosana, extraída da casca do crustáceo, tem se mostrado uma alternativa inofensiva e barata aos fungicidas. Este trabalho teve como objetivo testar o efeito inibitório da quitosana sobre o crescimento micelial de Fusarium oxysporum, Rhizoctonia solani e Trichoderma spp. Diferentes concentrações de quitosana (0, 1, 2, 4, 8 e 16%) foram adicionadas em Batata Dextrose Agar (BDA) preparado em 1% de ácido acético. Os fungos foram inoculados no centro das placas, incubados a 25 °C, com ou sem fotoperíodo de 12 horas. Medições diárias foram realizadas em dois diâmetros transversais até o micélio atingir as bordas da placa de Petri. O crescimento micelial de Fusarium oxysporum foi significativamente inibido pela quitosana nas concentrações 1, 2, 4 e 8%, nos dias 4, 5 e 6 de avaliação, em fotoperíodo de 12 horas. No entanto, para Rhizoctonia solani não houve redução no crescimento micelial. Trichoderma spp. apresentou a maior redução micelial, em ambos os esquemas de luz, em todas as concentrações avaliadas, nos dias um, dois e três. Os resultados indicam que o crescimento micelial de Fusarium oxysporum e Trichoderma spp. foram inibidos pela quitosana. Assim, o uso combinado de quitosana e Trichoderma spp. como agentes de biocontrole de fitopatógenos não é indicado.Atas de Saúde Ambiental - ASA (ISSN 2357-7614)2020-03-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistaseletronicas.fmu.br/index.php/ASA/article/view/2107Atas de Saúde Ambiental - ASA (ISSN 2357-7614); v. 8 (2020); 342357-7614reponame:Atas de Saúde Ambientalinstname:Faculdades Metropolitanas Unidas (FMU)instacron:FMUenghttps://revistaseletronicas.fmu.br/index.php/ASA/article/view/2107/1547Copyright (c) 2020 Amanda Keller Siqueira, Osmar da Rocha Levandoski Junior, Gabriela Aparecida Pereira Bertan, Jeislane Camila Sampietro Klack de Brito, Vanessa Gomes da Silvainfo:eu-repo/semantics/openAccessSiqueira, Amanda KellerLevandoski Junior, Osmar da RochaBertan, Gabriela Aparecida Pereirade Brito, Jeislane Camila Sampietro Klackda Silva, Vanessa Gomes2020-03-25T17:04:29Zoai:ojs.fmu.br:article/2107Revistahttps://revistaseletronicas.fmu.br/index.php/ASA/indexPRIhttps://revistaseletronicas.fmu.br/index.php/ASA/oai||asa.revista@gmail.com2357-76142357-7614opendoar:2020-03-25T17:04:29Atas de Saúde Ambiental - Faculdades Metropolitanas Unidas (FMU)false |
dc.title.none.fl_str_mv |
Effect of chitosan on the mycelial growth of Fusarium oxysporum, Rhizoctonia solani and Trichoderma spp. EFEITO DA QUITOSANA NO CRESCIMENTO MICELIAL DE FUSARIUM OXYSPORUM, RHIZOCTONIA SOLANI E TRICHODERMA SPP. |
title |
Effect of chitosan on the mycelial growth of Fusarium oxysporum, Rhizoctonia solani and Trichoderma spp. |
spellingShingle |
Effect of chitosan on the mycelial growth of Fusarium oxysporum, Rhizoctonia solani and Trichoderma spp. Siqueira, Amanda Keller biofungicide control fungi shrimp biofungicida camarão controle fungos. |
title_short |
Effect of chitosan on the mycelial growth of Fusarium oxysporum, Rhizoctonia solani and Trichoderma spp. |
title_full |
Effect of chitosan on the mycelial growth of Fusarium oxysporum, Rhizoctonia solani and Trichoderma spp. |
title_fullStr |
Effect of chitosan on the mycelial growth of Fusarium oxysporum, Rhizoctonia solani and Trichoderma spp. |
title_full_unstemmed |
Effect of chitosan on the mycelial growth of Fusarium oxysporum, Rhizoctonia solani and Trichoderma spp. |
title_sort |
Effect of chitosan on the mycelial growth of Fusarium oxysporum, Rhizoctonia solani and Trichoderma spp. |
author |
Siqueira, Amanda Keller |
author_facet |
Siqueira, Amanda Keller Levandoski Junior, Osmar da Rocha Bertan, Gabriela Aparecida Pereira de Brito, Jeislane Camila Sampietro Klack da Silva, Vanessa Gomes |
author_role |
author |
author2 |
Levandoski Junior, Osmar da Rocha Bertan, Gabriela Aparecida Pereira de Brito, Jeislane Camila Sampietro Klack da Silva, Vanessa Gomes |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Siqueira, Amanda Keller Levandoski Junior, Osmar da Rocha Bertan, Gabriela Aparecida Pereira de Brito, Jeislane Camila Sampietro Klack da Silva, Vanessa Gomes |
dc.subject.por.fl_str_mv |
biofungicide control fungi shrimp biofungicida camarão controle fungos. |
topic |
biofungicide control fungi shrimp biofungicida camarão controle fungos. |
description |
Fungicides, often used in conventional farming systems, can harm humans, animals and damage the environment. Chitosan, which is extracted from the crustacean shell, has shown to be a harmless and cheap alternative to fungicides. This study aimed to test the inhibitory effect of chitosan on the mycelial growth of Fusarium oxysporum, Rhizoctonia solani and Trichoderma spp. Different concentrations of chitosan (0, 1, 2, 4, 8 and 16%) were supplemented to 1% acetic acid Potato Dextrose Agar (PDA). The fungi were inoculated in the center of the plates, incubated at 25 °C, with or without a 12-hour photoperiod. Daily measurements were performed in two transverse diameters until the mycelium reached the edges of the Petri dish. Fusarium oxysporum mycelial growth was significantly inhibited by chitosan at concentrations 1, 2, 4, and 8%, on the 4th, 5th and 6th evaluation days, in a 12-hour photoperiod. However, for Rhizoctonia solani, there was no reduction on mycelial growth. Trichoderma spp. presented the greatest mycelial reduction, in both light schemes, in all the concentrations evaluated, on days one, two and three. The results indicate that the mycelial growth of Fusarium oxysporum and Trichoderma spp. were inhibited by chitosan. Although, the combined use of chitosan and Trichoderma spp. as biocontrol agents of phytopathogens is not indicated. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-03-12 |
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://revistaseletronicas.fmu.br/index.php/ASA/article/view/2107 |
url |
https://revistaseletronicas.fmu.br/index.php/ASA/article/view/2107 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://revistaseletronicas.fmu.br/index.php/ASA/article/view/2107/1547 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Atas de Saúde Ambiental - ASA (ISSN 2357-7614) |
publisher.none.fl_str_mv |
Atas de Saúde Ambiental - ASA (ISSN 2357-7614) |
dc.source.none.fl_str_mv |
Atas de Saúde Ambiental - ASA (ISSN 2357-7614); v. 8 (2020); 34 2357-7614 reponame:Atas de Saúde Ambiental instname:Faculdades Metropolitanas Unidas (FMU) instacron:FMU |
instname_str |
Faculdades Metropolitanas Unidas (FMU) |
instacron_str |
FMU |
institution |
FMU |
reponame_str |
Atas de Saúde Ambiental |
collection |
Atas de Saúde Ambiental |
repository.name.fl_str_mv |
Atas de Saúde Ambiental - Faculdades Metropolitanas Unidas (FMU) |
repository.mail.fl_str_mv |
||asa.revista@gmail.com |
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1798945156912644096 |