Infectivity of conidium and mycelium of Leandria momordicae

Detalhes bibliográficos
Autor(a) principal: Rebelo, José angelo
Data de Publicação: 2021
Outros Autores: Porto, Miguel Dalmo de Menezes
Tipo de documento: Artigo
Idioma: por
Título da fonte: Agropecuária Catarinense (Online)
Texto Completo: https://publicacoes.epagri.sc.gov.br/rac/article/view/958
Resumo: The available information on the epidemiology of net spot induced by Leandria momordicae Rangelin Cucumis sativus is contradictory. Due to the lack of a precise information and the difference between symptoms during summer and fall, it was evaluated the mycelium infectivity under appropriate and inappropriate conditions to infect, and the viability of spores from lesions of both seasons. It was observed that the mycelium could infectunder appropriate and under inappropriate temperature under relative moisture conditions for conidium infection. Spores from lesions occurring in the summer were unable to infect, as opposed to those from lesions produced inthe fall, both under natural and moisture chamber conditions. Therefore, due to the fact that the fungus infection either by mycelium or by conidium depends on the environmental conditions, it was concluded that it can infect and survive on its hosts during the whole year. Taking into account the mycelium infectivity, it can be used as inoculum, and its presence must be considered in conidium suspensions addressed to inoculations in plantresistance and susceptibility assays.
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spelling Infectivity of conidium and mycelium of Leandria momordicaeInfecciosidade de conídios e micélio de de de de de Leandria momordicaeLeandria momordicae Leandria momordicaeLeandria momordicae Leandria momordicaemancha-zonadapepinoCucumis sativuscucurbitáceas.“net spot”Cucumis sativuscucurbitsThe available information on the epidemiology of net spot induced by Leandria momordicae Rangelin Cucumis sativus is contradictory. Due to the lack of a precise information and the difference between symptoms during summer and fall, it was evaluated the mycelium infectivity under appropriate and inappropriate conditions to infect, and the viability of spores from lesions of both seasons. It was observed that the mycelium could infectunder appropriate and under inappropriate temperature under relative moisture conditions for conidium infection. Spores from lesions occurring in the summer were unable to infect, as opposed to those from lesions produced inthe fall, both under natural and moisture chamber conditions. Therefore, due to the fact that the fungus infection either by mycelium or by conidium depends on the environmental conditions, it was concluded that it can infect and survive on its hosts during the whole year. Taking into account the mycelium infectivity, it can be used as inoculum, and its presence must be considered in conidium suspensions addressed to inoculations in plantresistance and susceptibility assays. As informações sobre a epidemiologia da mancha zonada do pepineiro, causada por Leandria momordicae Rangel, são desencontradas. Devido à falta de informações precisas e a diferença entre a sintomatologia da doença durante o verão e outono, avaliaram-se a infecciosidade do micélio e dos conídios sob condições semelhantes nestas estações e a viabilidade dos conídios das lesões causadas nessas épocas. O micélio pode infectar sob condição de temperatura e de umidade relativa apropriadas e mais amplas do que os conídios. Osconídios coletados durante o verão não foram capazes de infectar, ao contrário dos produzidos no outono, que só não foram infecciosos quando submetidos a condições assemelhadas às do verão. Sendo patogênicos por micélio e/ou por conídios, o fungo pode parasitar e sobreviver em seus hospedeiros durante todo o ano. Considerando que o micélio é infectivo, pode-se utilizá-lo como inóculo e a sua presença nas suspensões de conídios deve ser consideradanos ensaios com o fungo.Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri2021-06-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://publicacoes.epagri.sc.gov.br/rac/article/view/958Agropecuária Catarinense Journal; Vol. 18 No. 1 (2005); 77-80Agropecuária Catarinense; v. 18 n. 1 (2005); 77-802525-60760103-0779reponame:Agropecuária Catarinense (Online)instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)instacron:EPAGRIporhttps://publicacoes.epagri.sc.gov.br/rac/article/view/958/856Copyright (c) 2005 Agropecuaria catarinensehttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessRebelo, José angeloPorto, Miguel Dalmo de Menezes 2021-06-23T14:20:32Zoai:ojs.publicacoes.epagri.sc.gov.br:article/958Revistahttps://publicacoes.epagri.sc.gov.br/RAC/indexPUBhttps://publicacoes.epagri.sc.gov.br/index.php/RAC/oaieditoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br2525-60760103-0779opendoar:2021-06-23T14:20:32Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)false
dc.title.none.fl_str_mv Infectivity of conidium and mycelium of Leandria momordicae
Infecciosidade de conídios e micélio de de de de de Leandria momordicaeLeandria momordicae Leandria momordicaeLeandria momordicae Leandria momordicae
title Infectivity of conidium and mycelium of Leandria momordicae
spellingShingle Infectivity of conidium and mycelium of Leandria momordicae
Rebelo, José angelo
mancha-zonada
pepino
Cucumis sativus
cucurbitáceas.
“net spot”
Cucumis sativus
cucurbits
title_short Infectivity of conidium and mycelium of Leandria momordicae
title_full Infectivity of conidium and mycelium of Leandria momordicae
title_fullStr Infectivity of conidium and mycelium of Leandria momordicae
title_full_unstemmed Infectivity of conidium and mycelium of Leandria momordicae
title_sort Infectivity of conidium and mycelium of Leandria momordicae
author Rebelo, José angelo
author_facet Rebelo, José angelo
Porto, Miguel Dalmo de Menezes
author_role author
author2 Porto, Miguel Dalmo de Menezes
author2_role author
dc.contributor.author.fl_str_mv Rebelo, José angelo
Porto, Miguel Dalmo de Menezes
dc.subject.por.fl_str_mv mancha-zonada
pepino
Cucumis sativus
cucurbitáceas.
“net spot”
Cucumis sativus
cucurbits
topic mancha-zonada
pepino
Cucumis sativus
cucurbitáceas.
“net spot”
Cucumis sativus
cucurbits
description The available information on the epidemiology of net spot induced by Leandria momordicae Rangelin Cucumis sativus is contradictory. Due to the lack of a precise information and the difference between symptoms during summer and fall, it was evaluated the mycelium infectivity under appropriate and inappropriate conditions to infect, and the viability of spores from lesions of both seasons. It was observed that the mycelium could infectunder appropriate and under inappropriate temperature under relative moisture conditions for conidium infection. Spores from lesions occurring in the summer were unable to infect, as opposed to those from lesions produced inthe fall, both under natural and moisture chamber conditions. Therefore, due to the fact that the fungus infection either by mycelium or by conidium depends on the environmental conditions, it was concluded that it can infect and survive on its hosts during the whole year. Taking into account the mycelium infectivity, it can be used as inoculum, and its presence must be considered in conidium suspensions addressed to inoculations in plantresistance and susceptibility assays.
publishDate 2021
dc.date.none.fl_str_mv 2021-06-23
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://publicacoes.epagri.sc.gov.br/rac/article/view/958
url https://publicacoes.epagri.sc.gov.br/rac/article/view/958
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://publicacoes.epagri.sc.gov.br/rac/article/view/958/856
dc.rights.driver.fl_str_mv Copyright (c) 2005 Agropecuaria catarinense
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2005 Agropecuaria catarinense
https://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 Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
dc.source.none.fl_str_mv Agropecuária Catarinense Journal; Vol. 18 No. 1 (2005); 77-80
Agropecuária Catarinense; v. 18 n. 1 (2005); 77-80
2525-6076
0103-0779
reponame:Agropecuária Catarinense (Online)
instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron:EPAGRI
instname_str Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron_str EPAGRI
institution EPAGRI
reponame_str Agropecuária Catarinense (Online)
collection Agropecuária Catarinense (Online)
repository.name.fl_str_mv Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
repository.mail.fl_str_mv editoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br
_version_ 1754917260761235456

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