BIOCONTROL OF TEAK CANKER CAUSED BY Lasiodiplodia theobromae

Detalhes bibliográficos
Autor(a) principal: Borges,Rafaela Cristina Ferreira
Data de Publicação: 2018
Outros Autores: Marques,Eder, Macedo,Monica Alves, Martins,Irene, Silva Filho,José Getulio da, Mello,Sueli Correa Marques de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Árvore (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622018000300203
Resumo: ABSTRACT Teak is a forest species that has assumed great importance in Brazil, where it has found excellent conditions for development since its introduction into the country in the 1960s. However, phytosanitary problems are beginning to threaten the production of this timber species. An example is teak canker, caused by the fungus Lasiodiplodia theobromae (Lt), which has only recently been reported in Brazil, and for which, therefore, there are no recommended control methods. Thus, this study evaluated the control of this pathogen, investigating the potential of the biocontrol agents (BCAs) Trichoderma spp., Bacillus sp. and Enterobacter sp., initially through in vitro assays and, subsequently, with in vivo tests. According to the in vitro assay results, the Trichoderma isolates CEN162 and CEN1153 and the strain of Bacillus sp. (UnB1366) were the treatments that stood out, as they were able to completely inhibit mycelial growth of some isolates of Lt. When these isolates were tested in a preventive way, the control levels varied depending on the Lt isolate and the antagonist-clone interaction, where CEN162 (T. asperellum) and UnB166 (Bacillus sp.) showed 100% control. Thus, there is a positive correlation between the in vitro and in vivo tests, since the same BCAs stood out. Although good levels of control have been obtained with the BCAs used, it can be concluded that there is a variation in the antagonism to different Lt isolates or even in the antagonist-clone interaction, corroborating the information available in the scientific literature on this plant-pathogenic fungus.
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spelling BIOCONTROL OF TEAK CANKER CAUSED BY Lasiodiplodia theobromaeBiocontrol agentsForestryTeak disease managementABSTRACT Teak is a forest species that has assumed great importance in Brazil, where it has found excellent conditions for development since its introduction into the country in the 1960s. However, phytosanitary problems are beginning to threaten the production of this timber species. An example is teak canker, caused by the fungus Lasiodiplodia theobromae (Lt), which has only recently been reported in Brazil, and for which, therefore, there are no recommended control methods. Thus, this study evaluated the control of this pathogen, investigating the potential of the biocontrol agents (BCAs) Trichoderma spp., Bacillus sp. and Enterobacter sp., initially through in vitro assays and, subsequently, with in vivo tests. According to the in vitro assay results, the Trichoderma isolates CEN162 and CEN1153 and the strain of Bacillus sp. (UnB1366) were the treatments that stood out, as they were able to completely inhibit mycelial growth of some isolates of Lt. When these isolates were tested in a preventive way, the control levels varied depending on the Lt isolate and the antagonist-clone interaction, where CEN162 (T. asperellum) and UnB166 (Bacillus sp.) showed 100% control. Thus, there is a positive correlation between the in vitro and in vivo tests, since the same BCAs stood out. Although good levels of control have been obtained with the BCAs used, it can be concluded that there is a variation in the antagonism to different Lt isolates or even in the antagonist-clone interaction, corroborating the information available in the scientific literature on this plant-pathogenic fungus.Sociedade de Investigações Florestais2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622018000300203Revista Árvore v.42 n.3 2018reponame:Revista Árvore (Online)instname:Universidade Federal de Viçosa (UFV)instacron:SIF10.1590/1806-90882018000300004info:eu-repo/semantics/openAccessBorges,Rafaela Cristina FerreiraMarques,EderMacedo,Monica AlvesMartins,IreneSilva Filho,José Getulio daMello,Sueli Correa Marques deeng2018-09-10T00:00:00Zoai:scielo:S0100-67622018000300203Revistahttp://www.scielo.br/revistas/rarv/iaboutj.htmPUBhttps://old.scielo.br/oai/scielo-oai.php||r.arvore@ufv.br1806-90880100-6762opendoar:2018-09-10T00:00Revista Árvore (Online) - Universidade Federal de Viçosa (UFV)false
dc.title.none.fl_str_mv BIOCONTROL OF TEAK CANKER CAUSED BY Lasiodiplodia theobromae
title BIOCONTROL OF TEAK CANKER CAUSED BY Lasiodiplodia theobromae
spellingShingle BIOCONTROL OF TEAK CANKER CAUSED BY Lasiodiplodia theobromae
Borges,Rafaela Cristina Ferreira
Biocontrol agents
Forestry
Teak disease management
title_short BIOCONTROL OF TEAK CANKER CAUSED BY Lasiodiplodia theobromae
title_full BIOCONTROL OF TEAK CANKER CAUSED BY Lasiodiplodia theobromae
title_fullStr BIOCONTROL OF TEAK CANKER CAUSED BY Lasiodiplodia theobromae
title_full_unstemmed BIOCONTROL OF TEAK CANKER CAUSED BY Lasiodiplodia theobromae
title_sort BIOCONTROL OF TEAK CANKER CAUSED BY Lasiodiplodia theobromae
author Borges,Rafaela Cristina Ferreira
author_facet Borges,Rafaela Cristina Ferreira
Marques,Eder
Macedo,Monica Alves
Martins,Irene
Silva Filho,José Getulio da
Mello,Sueli Correa Marques de
author_role author
author2 Marques,Eder
Macedo,Monica Alves
Martins,Irene
Silva Filho,José Getulio da
Mello,Sueli Correa Marques de
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Borges,Rafaela Cristina Ferreira
Marques,Eder
Macedo,Monica Alves
Martins,Irene
Silva Filho,José Getulio da
Mello,Sueli Correa Marques de
dc.subject.por.fl_str_mv Biocontrol agents
Forestry
Teak disease management
topic Biocontrol agents
Forestry
Teak disease management
description ABSTRACT Teak is a forest species that has assumed great importance in Brazil, where it has found excellent conditions for development since its introduction into the country in the 1960s. However, phytosanitary problems are beginning to threaten the production of this timber species. An example is teak canker, caused by the fungus Lasiodiplodia theobromae (Lt), which has only recently been reported in Brazil, and for which, therefore, there are no recommended control methods. Thus, this study evaluated the control of this pathogen, investigating the potential of the biocontrol agents (BCAs) Trichoderma spp., Bacillus sp. and Enterobacter sp., initially through in vitro assays and, subsequently, with in vivo tests. According to the in vitro assay results, the Trichoderma isolates CEN162 and CEN1153 and the strain of Bacillus sp. (UnB1366) were the treatments that stood out, as they were able to completely inhibit mycelial growth of some isolates of Lt. When these isolates were tested in a preventive way, the control levels varied depending on the Lt isolate and the antagonist-clone interaction, where CEN162 (T. asperellum) and UnB166 (Bacillus sp.) showed 100% control. Thus, there is a positive correlation between the in vitro and in vivo tests, since the same BCAs stood out. Although good levels of control have been obtained with the BCAs used, it can be concluded that there is a variation in the antagonism to different Lt isolates or even in the antagonist-clone interaction, corroborating the information available in the scientific literature on this plant-pathogenic fungus.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-01
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=S0100-67622018000300203
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622018000300203
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1806-90882018000300004
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 Sociedade de Investigações Florestais
publisher.none.fl_str_mv Sociedade de Investigações Florestais
dc.source.none.fl_str_mv Revista Árvore v.42 n.3 2018
reponame:Revista Árvore (Online)
instname:Universidade Federal de Viçosa (UFV)
instacron:SIF
instname_str Universidade Federal de Viçosa (UFV)
instacron_str SIF
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reponame_str Revista Árvore (Online)
collection Revista Árvore (Online)
repository.name.fl_str_mv Revista Árvore (Online) - Universidade Federal de Viçosa (UFV)
repository.mail.fl_str_mv ||r.arvore@ufv.br
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