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| Registros recuperados : 279 | |
| 121. |  | SOUZA, S. M. de; MORAES, G. J. de; MELLO, C. A. O. Oviposicao e eclosao de Stiphra robusta Mello-Leitao, 1939 (Ortoptera, Proscopiidae) no Tropico Semi-Árido do Brasil. Silvicultura, Sao Paulo, v. 8, n. 28, p. 511-512, jan./fev. 1983.| Biblioteca(s): Embrapa Florestas; Embrapa Semiárido. |
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| 122. | | BATAGLIOLI, M. C.; MORAES, G. J. de; ARELLANO, F.; NARDO, E. A. B. de. Persistencia do fungo Neozygites sp., patogeno de Mononychellus tanajoa, em meio aquatico. In: SIMPOSIO DE CONTROLE BIOLOGICO, 5., 1996, Foz do Iguacu. Anais: sessao de posters. Curitiba: EMBRAPA-CNPSo / COBRAFI, 1996. 451p. p. 275| Biblioteca(s): Embrapa Meio Ambiente. |
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| 126. | | WATANABE, M. A.; MORAES, G. J. de; GASTALDO Jr. I.; NICOLELLA, G. Controle biológico do ácaro rajado com ácaros predadores fitoseideos (Acari: Tetranychidae, Phytoseiidae) em culturas de pepino e morango. Scientia Agricola, Piracicaba, v.51, n.1, p.75-81, jan./abr., 1994.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 127. | | WATANABE, M. A.; MORAES, G. J. de; GASTALDO JUNIOR, I.; NICOLELLA, G. Controle biologico do acaro rajado com acaros predadores fitoseideos (Acari: Tetranychidae, Phytoseiidae) em culturas de pepino e morango. Scientia Agricola, Piracicaba, v.51, n.1, p.75-81, jan./abr. 1994.| Biblioteca(s): Embrapa Hortaliças. |
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| 128. | | WATANABE, M. A.; MORAES, G. J. de; GASTALDO JUNIOR, I; NICOLELLA, G. Controle biológico do ácaro rajado por ácaros predadores fitoseídeos (Acari: Tetranychidae, Phytoseidae) em pepino e morango. Scientia Agricola, Piracicaba, v.51, n.1, jan/abr. p.75-81, 1994.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 129. | | WATANABE, M. A.; MORAES, G. J. de; NICOLELLA, G.; GASTALDO JUNIOR, I.; FURTADO, I. P. Controle biologico do acaro rajado Tetranychus urticae com acaros predadores fitoseideos Amblyseius idaeus e Phytoseiulus macropilis em morango. In: SIMPOSIO DE CONTROLE BIOLOGICO, 4., 1994, Gramado. Anais: sessao de posteres. Pelotas: EMBRAPA-CPACT, 1994. p.282 (EMBRAPA-CPACT. Documentos, 5).| Biblioteca(s): Embrapa Meio Ambiente. |
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| 134. | | HAJI, F. N. P.; MORAES, G. J. de; LACERDA, C. A. de; NETO, R. S. Controle quimico do acaro do bronzeamento do tomateiro Aculops lycopersici (Massee, 1937). Anais da Sociedade Entomologica do Brasil, Vicosa, v.17, n.2, p.437-442, 1988.| Biblioteca(s): Embrapa Hortaliças. |
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| 135. | | HAJI, F. N. P.; MORAES, G. J. de; LACERDA, C. A. de; SEVERO NETO, R. Controle quimico do acaro do bronzeamento do tomateiro Aculops lycopersici (Massee, 1937). Anais da Sociedade Entomologica do Brasil, Porto Alegre, v. 17, n. 2, p. 437-442, 1988.| Biblioteca(s): Embrapa Semiárido. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
11/02/2008 |
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Data da última atualização: |
12/02/2008 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Nacional - A |
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Autoria: |
KITAJIMA, E. W.; GROOT, T. V. M.; NOVELLI, V. M.; FREITAS-ÁSTUA, J.; ALBERTI, G.; MORAES, G. J. de. |
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Afiliação: |
Elliot W. Kitajima, ESALQ; Thomas V. M. Groot, UvA; Valdenice M. Novelli, APTA; Juliana Freitas-Astúa, CNPMF; Gerd Alberti; Gilberto J. de Moraes, ESALQ. |
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Título: |
In situ observation of the Cardinium symbionts of Brevipalpus (Acari: Tenuipalpidae) by electron microscopy. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Experimental & Applied Acarology, v. 42, p. 263-271, 2007. |
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Idioma: |
Português |
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Conteúdo: |
Brevipalpus (Acari: Tenuipalpidae) mites are important pests on a variety of host plant species. The mites damage their hosts directly by feeding and some species also serve as vectors of plant viruses. Among more than 200 described Brevipalpus species, three are recognized as vectors of plant viruses: B. phoenicis, B. californicus and B. obovatus. These species occur worldwide in subtropical and tropical regions. Brevipalpus mites reproduce mostly by thelytokous parthenogenesis and this condition was attributed to a bacterial endosymbiont, recently characterized as a member of the genus Cardinium. The same symbiont infects many other arthropods and is capable of manipulating their host reproduction in various ways. Generally the presence of Cardinium is determined by molecular, PCR based, techniques. In the current work we present visual evidence for the presence of these bacteria by transmission electron microscopy as a complement of previous detection by PCR. Cardinium is easily identified by the presence of a unique array of microtubule-like structures (ML) in the cell. Symbionts have been observed in several organs and eggs from different populations of all three Brevipalpus species known as vector of plant viruses. Cardinium cells were always immersed directly within the cytoplasm of infected cells. Bacteria were observed in all females of all instars, but were absent from all males examined. Females from some Brevipalpus populations were observed to be uninfected by Cardinium. This observation confirmed previous PCR-based results that these populations were aposymbiotic. The observed distribution of the bacteria suggests that these bacteria could have other functions in the mite biology beside feminization. MenosBrevipalpus (Acari: Tenuipalpidae) mites are important pests on a variety of host plant species. The mites damage their hosts directly by feeding and some species also serve as vectors of plant viruses. Among more than 200 described Brevipalpus species, three are recognized as vectors of plant viruses: B. phoenicis, B. californicus and B. obovatus. These species occur worldwide in subtropical and tropical regions. Brevipalpus mites reproduce mostly by thelytokous parthenogenesis and this condition was attributed to a bacterial endosymbiont, recently characterized as a member of the genus Cardinium. The same symbiont infects many other arthropods and is capable of manipulating their host reproduction in various ways. Generally the presence of Cardinium is determined by molecular, PCR based, techniques. In the current work we present visual evidence for the presence of these bacteria by transmission electron microscopy as a complement of previous detection by PCR. Cardinium is easily identified by the presence of a unique array of microtubule-like structures (ML) in the cell. Symbionts have been observed in several organs and eggs from different populations of all three Brevipalpus species known as vector of plant viruses. Cardinium cells were always immersed directly within the cytoplasm of infected cells. Bacteria were observed in all females of all instars, but were absent from all males examined. Females from some Brevipalpus populations were observed to be uninfected by C... Mostrar Tudo |
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Palavras-Chave: |
Aposymbiont; B californicus; B obovatus; B phoenicis; californicus; False spider mites; obovatus; phoenicis. |
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Categoria do assunto: |
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Marc: |
LEADER 02523naa a2200277 a 4500
001 1654618
005 2008-02-12
008 2007 bl --- 0-- u #d
100 1 $aKITAJIMA, E. W.
245 $aIn situ observation of the Cardinium symbionts of Brevipalpus (Acari$bTenuipalpidae) by electron microscopy.
260 $c2007
520 $aBrevipalpus (Acari: Tenuipalpidae) mites are important pests on a variety of host plant species. The mites damage their hosts directly by feeding and some species also serve as vectors of plant viruses. Among more than 200 described Brevipalpus species, three are recognized as vectors of plant viruses: B. phoenicis, B. californicus and B. obovatus. These species occur worldwide in subtropical and tropical regions. Brevipalpus mites reproduce mostly by thelytokous parthenogenesis and this condition was attributed to a bacterial endosymbiont, recently characterized as a member of the genus Cardinium. The same symbiont infects many other arthropods and is capable of manipulating their host reproduction in various ways. Generally the presence of Cardinium is determined by molecular, PCR based, techniques. In the current work we present visual evidence for the presence of these bacteria by transmission electron microscopy as a complement of previous detection by PCR. Cardinium is easily identified by the presence of a unique array of microtubule-like structures (ML) in the cell. Symbionts have been observed in several organs and eggs from different populations of all three Brevipalpus species known as vector of plant viruses. Cardinium cells were always immersed directly within the cytoplasm of infected cells. Bacteria were observed in all females of all instars, but were absent from all males examined. Females from some Brevipalpus populations were observed to be uninfected by Cardinium. This observation confirmed previous PCR-based results that these populations were aposymbiotic. The observed distribution of the bacteria suggests that these bacteria could have other functions in the mite biology beside feminization.
653 $aAposymbiont
653 $aB californicus
653 $aB obovatus
653 $aB phoenicis
653 $acalifornicus
653 $aFalse spider mites
653 $aobovatus
653 $aphoenicis
700 1 $aGROOT, T. V. M.
700 1 $aNOVELLI, V. M.
700 1 $aFREITAS-ÁSTUA, J.
700 1 $aALBERTI, G.
700 1 $aMORAES, G. J. de
773 $tExperimental & Applied Acarology$gv. 42, p. 263-271, 2007.
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