Selection of Bacillus thuringiensis strains toxic to Meloidogyne incognita
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Tropical (Online) |
Texto Completo: | https://revistas.ufg.br/pat/article/view/73070 |
Resumo: | The Bacillus thuringiensis bacterium has demonstrated an effective potential in the control of several agricultural pests, among them nematodes. This study aimed to standardize and establish a methodology of bioassays of B. thuringiensis and Meloidogyne incognita with the use of resorcinol, select B. thuringiensis strains toxic to M. incognita in vitro and molecularly identify the presence of the cry6 gene in B. thuringiensis strains. Second-stage juveniles were subjected to resorcinol doses, verifying that the concentration of 0.2 % did not cause mortality and provided the Cry6A toxin ingestion. Thereafter, 16 B. thuringiensis strains were tested in the presence or absence of resorcinol, resulting in mortality rates of 4-36 %. Among the B. thuringiensis strains analyzed for the presence of the cry6 gene, only one was detected (S1617). KEYWORDS: Ingestion inducer, cry6 gene, nematode. |
id |
UFG-6_b8193e5a5915af26247ee3c5690dce18 |
---|---|
oai_identifier_str |
oai:ojs.revistas.ufg.br:article/73070 |
network_acronym_str |
UFG-6 |
network_name_str |
Pesquisa Agropecuária Tropical (Online) |
repository_id_str |
|
spelling |
Selection of Bacillus thuringiensis strains toxic to Meloidogyne incognitaSeleção de estirpes de Bacillus thuringiensis tóxicas a Meloidogyne incognitaThe Bacillus thuringiensis bacterium has demonstrated an effective potential in the control of several agricultural pests, among them nematodes. This study aimed to standardize and establish a methodology of bioassays of B. thuringiensis and Meloidogyne incognita with the use of resorcinol, select B. thuringiensis strains toxic to M. incognita in vitro and molecularly identify the presence of the cry6 gene in B. thuringiensis strains. Second-stage juveniles were subjected to resorcinol doses, verifying that the concentration of 0.2 % did not cause mortality and provided the Cry6A toxin ingestion. Thereafter, 16 B. thuringiensis strains were tested in the presence or absence of resorcinol, resulting in mortality rates of 4-36 %. Among the B. thuringiensis strains analyzed for the presence of the cry6 gene, only one was detected (S1617). KEYWORDS: Ingestion inducer, cry6 gene, nematode.A bactéria Bacillus thuringiensis tem demonstrado potencial no controle de diversas pragas agrícolas, dentre elas os nematoides. Objetivou-se padronizar e estabelecer uma metodologia de bioensaios de B. thuringiensis e Meloidogyne incognita com o uso de resorcinol, selecionar estirpes de B. thuringiensis tóxicas a M. incognita in vitro e identificar molecularmente a presença do gene cry6 em estirpes de B. thuringiensis. Juvenis de segundo estágio foram submetidos a doses de resorcinol, verificando-se que a concentração de 0,2 % não causou mortalidade e proporcionou a ingestão da toxina Cry6A. Após isso, 16 estirpes de B. thuringiensis foram testadas na presença ou não de resorcinol, resultando em mortalidades de 4-36 %. Dentre as estirpes de B. thuringiensis analisadas quanto à presença do gene cry6, detectou-se apenas uma (S1617). PALAVRAS-CHAVE: Indutor de ingestão, cry6 gene, nematoide.Escola de Agronomia - Universidade Federal de Goiás2022-10-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/73070Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 52 (2022); e73070Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 52 (2022); e73070Pesquisa Agropecuária Tropical; v. 52 (2022); e730701983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/73070/38892Copyright (c) 2022 Pesquisa Agropecuária Tropicalinfo:eu-repo/semantics/openAccessSantos, Jônatas Barros dosSilva, Alberto do NascimentoQueiroz , Paulo Roberto MartinsEckstein, BarbaraMonnerat, Rose Gomes2022-10-27T11:17:17Zoai:ojs.revistas.ufg.br:article/73070Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:37.197263Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
Selection of Bacillus thuringiensis strains toxic to Meloidogyne incognita Seleção de estirpes de Bacillus thuringiensis tóxicas a Meloidogyne incognita |
title |
Selection of Bacillus thuringiensis strains toxic to Meloidogyne incognita |
spellingShingle |
Selection of Bacillus thuringiensis strains toxic to Meloidogyne incognita Santos, Jônatas Barros dos |
title_short |
Selection of Bacillus thuringiensis strains toxic to Meloidogyne incognita |
title_full |
Selection of Bacillus thuringiensis strains toxic to Meloidogyne incognita |
title_fullStr |
Selection of Bacillus thuringiensis strains toxic to Meloidogyne incognita |
title_full_unstemmed |
Selection of Bacillus thuringiensis strains toxic to Meloidogyne incognita |
title_sort |
Selection of Bacillus thuringiensis strains toxic to Meloidogyne incognita |
author |
Santos, Jônatas Barros dos |
author_facet |
Santos, Jônatas Barros dos Silva, Alberto do Nascimento Queiroz , Paulo Roberto Martins Eckstein, Barbara Monnerat, Rose Gomes |
author_role |
author |
author2 |
Silva, Alberto do Nascimento Queiroz , Paulo Roberto Martins Eckstein, Barbara Monnerat, Rose Gomes |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Santos, Jônatas Barros dos Silva, Alberto do Nascimento Queiroz , Paulo Roberto Martins Eckstein, Barbara Monnerat, Rose Gomes |
description |
The Bacillus thuringiensis bacterium has demonstrated an effective potential in the control of several agricultural pests, among them nematodes. This study aimed to standardize and establish a methodology of bioassays of B. thuringiensis and Meloidogyne incognita with the use of resorcinol, select B. thuringiensis strains toxic to M. incognita in vitro and molecularly identify the presence of the cry6 gene in B. thuringiensis strains. Second-stage juveniles were subjected to resorcinol doses, verifying that the concentration of 0.2 % did not cause mortality and provided the Cry6A toxin ingestion. Thereafter, 16 B. thuringiensis strains were tested in the presence or absence of resorcinol, resulting in mortality rates of 4-36 %. Among the B. thuringiensis strains analyzed for the presence of the cry6 gene, only one was detected (S1617). KEYWORDS: Ingestion inducer, cry6 gene, nematode. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-10-27 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado por pares |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/pat/article/view/73070 |
url |
https://revistas.ufg.br/pat/article/view/73070 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/pat/article/view/73070/38892 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2022 Pesquisa Agropecuária Tropical info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2022 Pesquisa Agropecuária Tropical |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 52 (2022); e73070 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 52 (2022); e73070 Pesquisa Agropecuária Tropical; v. 52 (2022); e73070 1983-4063 reponame:Pesquisa Agropecuária Tropical (Online) instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Pesquisa Agropecuária Tropical (Online) |
collection |
Pesquisa Agropecuária Tropical (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
aseleguini.pat@gmail.com||mgoes@agro.ufg.br |
_version_ |
1799874821516951552 |