Maize bush stunt and corn stunt: Diseases of corn caused by molicutes

Detalhes bibliográficos
Autor(a) principal: Massola Júnior, Nelson Sidnei
Data de Publicação: 2004
Tipo de documento: Artigo
Idioma: por
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2058
Resumo: Maize Bushy Stunt and Corn Stunt are diseases of corn caused respectively by a phytoplasma (maize bushy stunt phytoplasma) and by Spiroplasma kunkelii. Both agents are restricted to the floem vessels of diseased plants. The leafhopper Dalbulus maidis is the vector of the diseases. The diseases are very harmfull to corn crops and can cause severe losses. Their importance increased very much in the last years mainly due to the continuous crops, which allow the perpetuation of corn, pathogens and vector over the year. Diseased plants show shortening, redening or yellowing and excessive proliferation of ears, among others symptoms. However, symptoms are variable according to the causal agent, environmental conditions and corn genotype. Correct diagnosis of the diseases has been reached with ELISA (“enzyme-linked immunosorbent assay”) and PCR (“polymerase chain reaction”). The use of resistant genotypes of corn is the main strategy of control of the diseases.
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spelling Maize bush stunt and corn stunt: Diseases of corn caused by molicutesEnfezamentos vermelho e pálido: Doenças em milho causadas por molicutesCorn cropsMolicutesSpiroplasma kunkeliiPhytoplasma.EnfezamentoMolicutesMilhoSpiroplasma kunkeliiPhytoplasma.Maize Bushy Stunt and Corn Stunt are diseases of corn caused respectively by a phytoplasma (maize bushy stunt phytoplasma) and by Spiroplasma kunkelii. Both agents are restricted to the floem vessels of diseased plants. The leafhopper Dalbulus maidis is the vector of the diseases. The diseases are very harmfull to corn crops and can cause severe losses. Their importance increased very much in the last years mainly due to the continuous crops, which allow the perpetuation of corn, pathogens and vector over the year. Diseased plants show shortening, redening or yellowing and excessive proliferation of ears, among others symptoms. However, symptoms are variable according to the causal agent, environmental conditions and corn genotype. Correct diagnosis of the diseases has been reached with ELISA (“enzyme-linked immunosorbent assay”) and PCR (“polymerase chain reaction”). The use of resistant genotypes of corn is the main strategy of control of the diseases.Os enfezamentos vermelho e pálido são doenças do milho causadas, respectivamente, por um fitoplasma (“maize bushy stunt phytoplasma”) e pelo Spiroplasma kunkelii, organismos restritos ao floema das plantas infectadas. Ambas são transmitidas pela cigarrinha Dalbulus maidis. São doenças bastante destrutivas, podendo causar sérios prejuízos aos agricultores. A importância dessas doenças aumentou muito nos últimos anos, devido principalmente aos cultivos “safrinha”, que perpetuam o milho, os patógenos e o vetor no campo durante o ano todo. As plantas doentes exibem redução de crescimento, avermelhamento ou amarelecimento, proliferação excessiva de espigas pequenas e improdutivas, além de outros sintomas. No entanto, esses sintomas dependem do agente causal, condições climáticas e genótipo do milho. A diagnose correta tem sido feita por testes de ELISA (“enzyme-linked immunosorbent assay”) e por PCR (“polymerase chain reaction”), devido à complexidade da sintomatologia. Nas áreas onde ocorrem, o controle dessas doenças baseia-se principalmente no uso de genótipos resistentes de milho.UEL2004-02-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/205810.5433/1679-0359.2001v22n2p237Semina: Ciências Agrárias; Vol. 22 No. 2 (2001); 237-243Semina: Ciências Agrárias; v. 22 n. 2 (2001); 237-2431679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2058/1767Massola Júnior, Nelson Sidneiinfo:eu-repo/semantics/openAccess2009-05-18T13:38:37Zoai:ojs.pkp.sfu.ca:article/2058Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2009-05-18T13:38:37Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Maize bush stunt and corn stunt: Diseases of corn caused by molicutes
Enfezamentos vermelho e pálido: Doenças em milho causadas por molicutes
title Maize bush stunt and corn stunt: Diseases of corn caused by molicutes
spellingShingle Maize bush stunt and corn stunt: Diseases of corn caused by molicutes
Massola Júnior, Nelson Sidnei
Corn crops
Molicutes
Spiroplasma kunkelii
Phytoplasma.
Enfezamento
Molicutes
Milho
Spiroplasma kunkelii
Phytoplasma.
title_short Maize bush stunt and corn stunt: Diseases of corn caused by molicutes
title_full Maize bush stunt and corn stunt: Diseases of corn caused by molicutes
title_fullStr Maize bush stunt and corn stunt: Diseases of corn caused by molicutes
title_full_unstemmed Maize bush stunt and corn stunt: Diseases of corn caused by molicutes
title_sort Maize bush stunt and corn stunt: Diseases of corn caused by molicutes
author Massola Júnior, Nelson Sidnei
author_facet Massola Júnior, Nelson Sidnei
author_role author
dc.contributor.author.fl_str_mv Massola Júnior, Nelson Sidnei
dc.subject.por.fl_str_mv Corn crops
Molicutes
Spiroplasma kunkelii
Phytoplasma.
Enfezamento
Molicutes
Milho
Spiroplasma kunkelii
Phytoplasma.
topic Corn crops
Molicutes
Spiroplasma kunkelii
Phytoplasma.
Enfezamento
Molicutes
Milho
Spiroplasma kunkelii
Phytoplasma.
description Maize Bushy Stunt and Corn Stunt are diseases of corn caused respectively by a phytoplasma (maize bushy stunt phytoplasma) and by Spiroplasma kunkelii. Both agents are restricted to the floem vessels of diseased plants. The leafhopper Dalbulus maidis is the vector of the diseases. The diseases are very harmfull to corn crops and can cause severe losses. Their importance increased very much in the last years mainly due to the continuous crops, which allow the perpetuation of corn, pathogens and vector over the year. Diseased plants show shortening, redening or yellowing and excessive proliferation of ears, among others symptoms. However, symptoms are variable according to the causal agent, environmental conditions and corn genotype. Correct diagnosis of the diseases has been reached with ELISA (“enzyme-linked immunosorbent assay”) and PCR (“polymerase chain reaction”). The use of resistant genotypes of corn is the main strategy of control of the diseases.
publishDate 2004
dc.date.none.fl_str_mv 2004-02-28
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://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2058
10.5433/1679-0359.2001v22n2p237
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2058
identifier_str_mv 10.5433/1679-0359.2001v22n2p237
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2058/1767
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 22 No. 2 (2001); 237-243
Semina: Ciências Agrárias; v. 22 n. 2 (2001); 237-243
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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