Essential oils for rust control on coffee plants

Detalhes bibliográficos
Autor(a) principal: Pereira, Ricardo Borges
Data de Publicação: 2012
Outros Autores: Lucas, Gilvaine Ciavareli, Perina, Fabiano José, Alves, Eduardo
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/28511
Resumo: Rust is considered the most important disease in coffee because it causes severe defoliation in plants and, consequently, reduction in productivity. This study evaluated the in vitro effect of essential oils of cinnamon, citronella, lemongrass, clove, tea tree, thyme, neem and eucalyptus on the germination of urediniospores of Hemileia vastatrix; the effectiveness of these oils to control rust on seedlings of coffee cultivars Catucaí 2SL, Catuaí IAC 62 and Mundo Novo 379/19 in the greenhouse; and the effect of more promising oils on urediniospores of H. vastatrix by transmission electron microscopy (TEM). All the essential oils inhibited the germination of urediniospores with increasing concentrations. All oils promoted partial control of the disease in the greenhouse. However, the oils of thyme, clove and citronella, at a concentration of 1000 µL L-1, were most effective in controlling the disease on cultivars Catucaí 2SL, Catuaí IAC 62 and Mundo Novo 379/19, respectively. The images generated in TEM showed that urediniospores exposed to oils of clove, citronella and thyme promoted cellular disorganization and cytoplasmic vacuolization, which was more pronounced in urediniospores exposed to citronella oil. The oils of thyme, clove and citronella are promising for the control of rust in coffee.
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spelling Essential oils for rust control on coffee plantsÓleos essenciais no controle da ferrugem em cafeeiroHemileia vastatrixAlternative controlTransmission electron microscopyControle alternativoMicroscopia eletrônica de transmissãoRust is considered the most important disease in coffee because it causes severe defoliation in plants and, consequently, reduction in productivity. This study evaluated the in vitro effect of essential oils of cinnamon, citronella, lemongrass, clove, tea tree, thyme, neem and eucalyptus on the germination of urediniospores of Hemileia vastatrix; the effectiveness of these oils to control rust on seedlings of coffee cultivars Catucaí 2SL, Catuaí IAC 62 and Mundo Novo 379/19 in the greenhouse; and the effect of more promising oils on urediniospores of H. vastatrix by transmission electron microscopy (TEM). All the essential oils inhibited the germination of urediniospores with increasing concentrations. All oils promoted partial control of the disease in the greenhouse. However, the oils of thyme, clove and citronella, at a concentration of 1000 µL L-1, were most effective in controlling the disease on cultivars Catucaí 2SL, Catuaí IAC 62 and Mundo Novo 379/19, respectively. The images generated in TEM showed that urediniospores exposed to oils of clove, citronella and thyme promoted cellular disorganization and cytoplasmic vacuolization, which was more pronounced in urediniospores exposed to citronella oil. The oils of thyme, clove and citronella are promising for the control of rust in coffee.A ferrugem é considerada a doença de maior importância no cafeeiro, pois causa acentuada desfolha nas plantas e, consequentemente, redução na produtividade. Este trabalho avaliou o efeito in vitro de óleos essenciais de canela, citronela, capim-limão, cravo-da-índia, árvore-de-chá, tomilho, nim e eucalipto na germinação de urediniósporos de Hemileia vastatrix; a eficácia desses óleos no controle da ferrugem em mudas de cafeeiro das cultivares Catucaí 2SL, Catuaí IAC 62 e Mundo Novo 379/19 em casa de vegetação; e o efeito dos óleos mais promissores sobre urediniósporos de H. vastatrix por meio de microscopia eletrônica de transmissão (MET). Todos os óleos essenciais inibiram a germinação dos urediniósporos com o aumento das concentrações. Todos os óleos promoveram controle parcial da doença em casa de vegetação. No entanto, os óleos de tomilho, cravo-da-índia e citronela, na dose de 1000 µL L-1, foram os mais eficazes no controle da doença nas cultivares Catucaí 2SL, Catuaí IAC 62 e Mundo Novo 379/19, respectivamente. Nas imagens geradas em MET, observou-se que urediniósporos expostos aos óleos de cravo-da-índia, citronela e tomilho apresentaram desorganização citoplasmática e vacuolização celular, sendo esta mais pronunciada em urediniósporos expostos ao óleo de citronela. Os óleos de tomilho, cravo-da-índia e citronela são promissores no controle da ferrugem em cafeeiro.Universidade Federal de Lavras2018-01-29T11:55:58Z2018-01-29T11:55:58Z2012info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfPEREIRA, R. B. et al. Essential oils for rust control on coffee plants. Ciência e Agrotecnologia, Lavras, v. 36, n. 1, p. 16-24, jan./fev. 2012.http://repositorio.ufla.br/jspui/handle/1/28511Ciência e Agrotecnologiareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessPereira, Ricardo BorgesLucas, Gilvaine CiavareliPerina, Fabiano JoséAlves, Eduardopor2023-05-26T19:51:05Zoai:localhost:1/28511Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-26T19:51:05Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Essential oils for rust control on coffee plants
Óleos essenciais no controle da ferrugem em cafeeiro
title Essential oils for rust control on coffee plants
spellingShingle Essential oils for rust control on coffee plants
Pereira, Ricardo Borges
Hemileia vastatrix
Alternative control
Transmission electron microscopy
Controle alternativo
Microscopia eletrônica de transmissão
title_short Essential oils for rust control on coffee plants
title_full Essential oils for rust control on coffee plants
title_fullStr Essential oils for rust control on coffee plants
title_full_unstemmed Essential oils for rust control on coffee plants
title_sort Essential oils for rust control on coffee plants
author Pereira, Ricardo Borges
author_facet Pereira, Ricardo Borges
Lucas, Gilvaine Ciavareli
Perina, Fabiano José
Alves, Eduardo
author_role author
author2 Lucas, Gilvaine Ciavareli
Perina, Fabiano José
Alves, Eduardo
author2_role author
author
author
dc.contributor.author.fl_str_mv Pereira, Ricardo Borges
Lucas, Gilvaine Ciavareli
Perina, Fabiano José
Alves, Eduardo
dc.subject.por.fl_str_mv Hemileia vastatrix
Alternative control
Transmission electron microscopy
Controle alternativo
Microscopia eletrônica de transmissão
topic Hemileia vastatrix
Alternative control
Transmission electron microscopy
Controle alternativo
Microscopia eletrônica de transmissão
description Rust is considered the most important disease in coffee because it causes severe defoliation in plants and, consequently, reduction in productivity. This study evaluated the in vitro effect of essential oils of cinnamon, citronella, lemongrass, clove, tea tree, thyme, neem and eucalyptus on the germination of urediniospores of Hemileia vastatrix; the effectiveness of these oils to control rust on seedlings of coffee cultivars Catucaí 2SL, Catuaí IAC 62 and Mundo Novo 379/19 in the greenhouse; and the effect of more promising oils on urediniospores of H. vastatrix by transmission electron microscopy (TEM). All the essential oils inhibited the germination of urediniospores with increasing concentrations. All oils promoted partial control of the disease in the greenhouse. However, the oils of thyme, clove and citronella, at a concentration of 1000 µL L-1, were most effective in controlling the disease on cultivars Catucaí 2SL, Catuaí IAC 62 and Mundo Novo 379/19, respectively. The images generated in TEM showed that urediniospores exposed to oils of clove, citronella and thyme promoted cellular disorganization and cytoplasmic vacuolization, which was more pronounced in urediniospores exposed to citronella oil. The oils of thyme, clove and citronella are promising for the control of rust in coffee.
publishDate 2012
dc.date.none.fl_str_mv 2012
2018-01-29T11:55:58Z
2018-01-29T11:55:58Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv PEREIRA, R. B. et al. Essential oils for rust control on coffee plants. Ciência e Agrotecnologia, Lavras, v. 36, n. 1, p. 16-24, jan./fev. 2012.
http://repositorio.ufla.br/jspui/handle/1/28511
identifier_str_mv PEREIRA, R. B. et al. Essential oils for rust control on coffee plants. Ciência e Agrotecnologia, Lavras, v. 36, n. 1, p. 16-24, jan./fev. 2012.
url http://repositorio.ufla.br/jspui/handle/1/28511
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Lavras
publisher.none.fl_str_mv Universidade Federal de Lavras
dc.source.none.fl_str_mv Ciência e Agrotecnologia
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
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institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
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