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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
28/12/1995 |
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Data da última atualização: |
28/12/1995 |
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Autoria: |
COLARICCIO, A.; LOVISOLO, O.; CHAGAS, C. M.; GALLETI, S. R.; ROSSETTI, V.; KITAJIMA, E. W. |
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Afiliação: |
Virologia fitopatol. instituto biologico de Sao Paulo. Inst. Fitopatol.Applicata del Consiglio Nazionale delle Ricerche, Torino , Italy; Dept. Biol. Cel., Univ. Brasilia DF. |
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Título: |
Mechanical transmission and ultrastructural aspects of citrus leprosis disease. |
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Ano de publicação: |
1995 |
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Fonte/Imprenta: |
Fitopatologia brasileira, 20, 208-213, 1995. |
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ISSN: |
0010-4158 |
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Idioma: |
Inglês |
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Conteúdo: |
Citrus leprosis (CL), an important disease, which occurs mainly in Brazil and Argentina, is transmitted by mites of the genus Brevipalpus. Limited evidence suggests that CL is caused by virus. We report mechanical transmission of CL from citrus to citrus and three berbaceous testplants (Chenopodium amaranticolor, C. guinoa and Gemphrena globosa), with production of only local lesions, in all cases. Reaction times were 5 to 7 days for the two Chenopodium species, 14 to 16 days for G.globosa and 20 to 24 for citrus.In naturally infected citrus tissues and in experimentally obtained local lesions, non-enveloped rhabdovirus-like particles 120-130 X 50-55 nm were observed within membranous vesicles of the endoplasmic reticulum. Sometimes the particles reached 300nmin length. Dense masses (viroplasms), and vesicles 80 to 100 nm in diameter, associated with the tonoplast, were also observed. The cytopathology was not identical with that previously reported for CL. Mechanical transmissibility, the finding of virus-like particles in infected tissues, and the cytopathology eliminate the possibility of CL being caused by mite salivary toxins, and open the way to the identification of the causal agent, which is almost certINLY A VIRUS. |
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Palavras-Chave: |
Citrus leprosis; Cytopathology; Mechanical transmission; rhabdovirus. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01898naa a2200241 a 4500
001 1634193
005 1995-12-28
008 1995 bl uuuu u00u1 u #d
022 $a0010-4158
100 1 $aCOLARICCIO, A.
245 $aMechanical transmission and ultrastructural aspects of citrus leprosis disease.
260 $c1995
520 $aCitrus leprosis (CL), an important disease, which occurs mainly in Brazil and Argentina, is transmitted by mites of the genus Brevipalpus. Limited evidence suggests that CL is caused by virus. We report mechanical transmission of CL from citrus to citrus and three berbaceous testplants (Chenopodium amaranticolor, C. guinoa and Gemphrena globosa), with production of only local lesions, in all cases. Reaction times were 5 to 7 days for the two Chenopodium species, 14 to 16 days for G.globosa and 20 to 24 for citrus.In naturally infected citrus tissues and in experimentally obtained local lesions, non-enveloped rhabdovirus-like particles 120-130 X 50-55 nm were observed within membranous vesicles of the endoplasmic reticulum. Sometimes the particles reached 300nmin length. Dense masses (viroplasms), and vesicles 80 to 100 nm in diameter, associated with the tonoplast, were also observed. The cytopathology was not identical with that previously reported for CL. Mechanical transmissibility, the finding of virus-like particles in infected tissues, and the cytopathology eliminate the possibility of CL being caused by mite salivary toxins, and open the way to the identification of the causal agent, which is almost certINLY A VIRUS.
653 $aCitrus leprosis
653 $aCytopathology
653 $aMechanical transmission
653 $arhabdovirus
700 1 $aLOVISOLO, O.
700 1 $aCHAGAS, C. M.
700 1 $aGALLETI, S. R.
700 1 $aROSSETTI, V.
700 1 $aKITAJIMA, E. W.
773 $tFitopatologia brasileira, 20, 208-213, 1995.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
07/07/1999 |
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Data da última atualização: |
27/06/2014 |
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Autoria: |
MEDRADO, M. J. S.; FOWLER, J. A. P.; PINTO, A. F. |
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Afiliação: |
Medrado, Fowler, pesquisadores da Embrapa-CNPF. |
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Título: |
Avaliação de espécies de Leucena, para uso em "Alley Cropping" e bancos de proteina, no município de Wenceslau Braz, PR. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
Colombo: EMBRAPA-CNPF, 1999. |
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Páginas: |
6 p. |
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Série: |
(EMBRAPA-CNPF. Pesquisa em andamento, 43). |
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ISSN: |
0104-5903 |
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Idioma: |
Português |
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Palavras-Chave: |
Avaliação; Leucena. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CNPF-2009-09/16582/1/pesq-andam-43.PDF
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Marc: |
LEADER 00561nam a2200181 a 4500
001 1290829
005 2014-06-27
008 1999 bl uuuu u0uu1 u #d
022 $a0104-5903
100 1 $aMEDRADO, M. J. S.
245 $aAvaliação de espécies de Leucena, para uso em "Alley Cropping" e bancos de proteina, no município de Wenceslau Braz, PR.
260 $aColombo: EMBRAPA-CNPF$c1999
300 $a6 p.
490 $a(EMBRAPA-CNPF. Pesquisa em andamento, 43).
653 $aAvaliação
653 $aLeucena
700 1 $aFOWLER, J. A. P.
700 1 $aPINTO, A. F.
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Registro original: |
Embrapa Florestas (CNPF) |
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