Wood-associated fungi produce volatile organic compounds toxic to root-knot nematode
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | https://www.revistas.usp.br/sa/article/view/132798 |
Resumo: | Since volatiles do not leave residues in food and cause low toxicity to humans, they can act as a skeleton for new nematicidal molecules, once they have demonstrated activity against phytonematodes. The aim of this study was to evaluate the effect of volatile organic compounds (VOCs) released by wood-associated fungi on controling second-stage juveniles (J2) of Meloidogyne incognita. All 28 wood-associated fungi isolates produced VOCs which caused in excess of 76 % immobility in exposed J2 of M. incognita. The fungus isolate VOCs also caused significant mortality compared to control when J2 were exposed to them. After 6 h of exposure, the fungus species Epicoccum nigrum and Schizophyllum commune produced VOCs that immobilized exposed J2 compounds, in relation to the control. When J2 were inoculated into tomato under greenhouse conditions, the M. incognita infectivity and reproduction were reduced by exposure to the VOCs. Volatiles produced by most of the fungi isolates and analyzed by gas chromatograph coupled to a mass spectrometer (CG-MS), included alcohols, esters, terpenes, and ketones. Certain compounds appeared only in S. commune or in E. nigrum suggesting their involvement in the high level of damage caused to nematode reproduction on tomato. Volatiles emitted by wood fungi demonstrated another mode of action of these microorganisms in nature. |
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Scientia Agrícola (Online) |
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Wood-associated fungi produce volatile organic compounds toxic to root-knot nematodeEpicoccum nigrumSchizophyllum communeroot nematodeschromatographycontrolSince volatiles do not leave residues in food and cause low toxicity to humans, they can act as a skeleton for new nematicidal molecules, once they have demonstrated activity against phytonematodes. The aim of this study was to evaluate the effect of volatile organic compounds (VOCs) released by wood-associated fungi on controling second-stage juveniles (J2) of Meloidogyne incognita. All 28 wood-associated fungi isolates produced VOCs which caused in excess of 76 % immobility in exposed J2 of M. incognita. The fungus isolate VOCs also caused significant mortality compared to control when J2 were exposed to them. After 6 h of exposure, the fungus species Epicoccum nigrum and Schizophyllum commune produced VOCs that immobilized exposed J2 compounds, in relation to the control. When J2 were inoculated into tomato under greenhouse conditions, the M. incognita infectivity and reproduction were reduced by exposure to the VOCs. Volatiles produced by most of the fungi isolates and analyzed by gas chromatograph coupled to a mass spectrometer (CG-MS), included alcohols, esters, terpenes, and ketones. Certain compounds appeared only in S. commune or in E. nigrum suggesting their involvement in the high level of damage caused to nematode reproduction on tomato. Volatiles emitted by wood fungi demonstrated another mode of action of these microorganisms in nature.Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/sa/article/view/13279810.1590/1678-992x-2015-0472Scientia Agricola; v. 74 n. 4 (2017); 303-310Scientia Agricola; Vol. 74 Núm. 4 (2017); 303-310Scientia Agricola; Vol. 74 No. 4 (2017); 303-3101678-992X0103-9016reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/sa/article/view/132798/128823Copyright (c) 2017 Scientia Agricolainfo:eu-repo/semantics/openAccessPimenta, LíviaFerreira, Maria AlvesPedroso, Marcio PozzobonCampos, Vicente Paulo2017-06-12T11:35:11Zoai:revistas.usp.br:article/132798Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2017-06-12T11:35:11Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Wood-associated fungi produce volatile organic compounds toxic to root-knot nematode |
title |
Wood-associated fungi produce volatile organic compounds toxic to root-knot nematode |
spellingShingle |
Wood-associated fungi produce volatile organic compounds toxic to root-knot nematode Pimenta, Lívia Epicoccum nigrum Schizophyllum commune root nematodes chromatography control |
title_short |
Wood-associated fungi produce volatile organic compounds toxic to root-knot nematode |
title_full |
Wood-associated fungi produce volatile organic compounds toxic to root-knot nematode |
title_fullStr |
Wood-associated fungi produce volatile organic compounds toxic to root-knot nematode |
title_full_unstemmed |
Wood-associated fungi produce volatile organic compounds toxic to root-knot nematode |
title_sort |
Wood-associated fungi produce volatile organic compounds toxic to root-knot nematode |
author |
Pimenta, Lívia |
author_facet |
Pimenta, Lívia Ferreira, Maria Alves Pedroso, Marcio Pozzobon Campos, Vicente Paulo |
author_role |
author |
author2 |
Ferreira, Maria Alves Pedroso, Marcio Pozzobon Campos, Vicente Paulo |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Pimenta, Lívia Ferreira, Maria Alves Pedroso, Marcio Pozzobon Campos, Vicente Paulo |
dc.subject.por.fl_str_mv |
Epicoccum nigrum Schizophyllum commune root nematodes chromatography control |
topic |
Epicoccum nigrum Schizophyllum commune root nematodes chromatography control |
description |
Since volatiles do not leave residues in food and cause low toxicity to humans, they can act as a skeleton for new nematicidal molecules, once they have demonstrated activity against phytonematodes. The aim of this study was to evaluate the effect of volatile organic compounds (VOCs) released by wood-associated fungi on controling second-stage juveniles (J2) of Meloidogyne incognita. All 28 wood-associated fungi isolates produced VOCs which caused in excess of 76 % immobility in exposed J2 of M. incognita. The fungus isolate VOCs also caused significant mortality compared to control when J2 were exposed to them. After 6 h of exposure, the fungus species Epicoccum nigrum and Schizophyllum commune produced VOCs that immobilized exposed J2 compounds, in relation to the control. When J2 were inoculated into tomato under greenhouse conditions, the M. incognita infectivity and reproduction were reduced by exposure to the VOCs. Volatiles produced by most of the fungi isolates and analyzed by gas chromatograph coupled to a mass spectrometer (CG-MS), included alcohols, esters, terpenes, and ketones. Certain compounds appeared only in S. commune or in E. nigrum suggesting their involvement in the high level of damage caused to nematode reproduction on tomato. Volatiles emitted by wood fungi demonstrated another mode of action of these microorganisms in nature. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-08-01 |
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://www.revistas.usp.br/sa/article/view/132798 10.1590/1678-992x-2015-0472 |
url |
https://www.revistas.usp.br/sa/article/view/132798 |
identifier_str_mv |
10.1590/1678-992x-2015-0472 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/sa/article/view/132798/128823 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2017 Scientia Agricola info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2017 Scientia Agricola |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz |
publisher.none.fl_str_mv |
Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz |
dc.source.none.fl_str_mv |
Scientia Agricola; v. 74 n. 4 (2017); 303-310 Scientia Agricola; Vol. 74 Núm. 4 (2017); 303-310 Scientia Agricola; Vol. 74 No. 4 (2017); 303-310 1678-992X 0103-9016 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1800222793255616512 |