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Registro Completo |
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
19/08/1992 |
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Data da última atualização: |
09/02/2013 |
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Autoria: |
LIMA, J. A. A. |
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Título: |
Blackeye cowpea mosaic virus: purification, partial characterization, serology, and immunochemical and cytological techniques for detection of virus-infected legume seeds. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
[S.l.: s.n.], 1978. |
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Páginas: |
3 p. |
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Idioma: |
Inglês |
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Notas: |
Resumo de Tese. |
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Conteúdo: |
Blackeye cowpea mosaic virus (BICMV) was increased in cowpea, Vigna unguiculata (L.) Walp., 'knuckle purple hull', and infected leaves were used for virus and cytoplasmic inclusion purification. Either n-butanol or a combination of chloroform and carbon tetrachloride was used in the clarification process. Polyacrylamide gel electrophoresis of sodium dodecyl sulfate (SDS) dissociated inclusions and virus revealed that the inclusions were made of a single protein estimated to have a molecular weight (MW) around 70.000 daltons whereas freshly purified BICMV consisted of a main protein component with a MW of 34,000 daltons and two smaller proteins with WMs of 29,000 and 27,000 daltons, Purified BICMV had a 260/280 nm absorption ration of 1.2 and a modal length of 753 nm. Freshly purified BICMV preparations showed a single sedimenting peak with s20 =157-159 s. The purified BICMV cytoplasmic inclusions had absorption spectra characteristic for proteins. Electron microscopy of purified inclusions revealed the presence of tubes showing striations with periodicities of approximately 5 nm. Antisera reactive in SDS-immunodiffusion were obtained against untreated virions, pyrrolidine degraded cell protein, and untreated BICMV cytoplasmic incluions. Reciprocal double immunodiffusion tests with SDS-treated antigens showed that BICMV is serologically unrelated to seven potyviruses and serologically related to, but distinct from: bean common mosaic virus (BCMV), bean yellow mosaic virus (BYMC), cowpea aphid-borne mosaic virus CAMV), dasheen mosaic (DMV), lettuce mosaic virus (LMV), potato virus y (PVY), soybean mosaic virus (SoyMV), tobacco etch virus (TEV), and watermelon mosaic virus-2 (WMV-2). The intragel cross-absorption technique was also used to demonstrate distinction between closely related potyviruses. Agar medium impregnated with a mixture of antisera used for serodiagnosis of BICMV and cowpea mosaic virus in cowpea. Light and electron microscopy of cytoplasmic inclusions induced by BICMV, siratro (Macroptilium atropurpureum (D.C.) Urb.) strain of BCMV (BCMV-S) and CAMV revealed that they are similar to those induced by the potyviruses from Edwardson's subdivision-l. The different reactions induced by BICMV, and CAMV in some cowpea varieties indicated that they can also be used as used as differential hosts for these three potyviruses. Sources of resistance for BICMV were found among the cowpea varieties tested. Based on its physical, biological, cytological, and immunochemical properties, BICMV can be differentiated fron any other virus that infects cowpea. Cytoplasmic inclusions induced by BICMV in cowpea and by SoyMV in soybean were detected by serology, light microscopy, and electron microscopy in hypocotyls of 4-5-day-old seedlings grown from virus-infected seeds. Immunodiffusion tests and serologically specific electrom microscopy were used to detect BICMV in hypocotyls of 4-5-day-old cowpea seedlings grown from BICMV-infected seeds. Discs of individual hypocotyls were embedded into the agar medium 4-5 mm away from the antiserum wells. Virus-specific precipitin lines formed between virus-infected hypocotyl discs and antiserum wells, whereas no reactinos were observed with healthy hypocotyls. Precipitin lines were also observed with extracts of mixtures from infected (1 g) and healthy (up to 29 g) tissues. These immunochemical techniques were also used for detecting BCMC in hypocotyls of infected 4-5-day-old Phaseolus vulgaris L. seedlings and for detecting SoyMV in infected Glycine max (L) Merr. seedlings. Single radial immunodiffusion tests with extracts or discs of cowpea hypocotyls were also useful for detecting BICMV in germinated seeds. The reliability and simplicity of the immunodiffusion tests make them suitable for use in routine seed health testing program in any laboratory. MenosBlackeye cowpea mosaic virus (BICMV) was increased in cowpea, Vigna unguiculata (L.) Walp., 'knuckle purple hull', and infected leaves were used for virus and cytoplasmic inclusion purification. Either n-butanol or a combination of chloroform and carbon tetrachloride was used in the clarification process. Polyacrylamide gel electrophoresis of sodium dodecyl sulfate (SDS) dissociated inclusions and virus revealed that the inclusions were made of a single protein estimated to have a molecular weight (MW) around 70.000 daltons whereas freshly purified BICMV consisted of a main protein component with a MW of 34,000 daltons and two smaller proteins with WMs of 29,000 and 27,000 daltons, Purified BICMV had a 260/280 nm absorption ration of 1.2 and a modal length of 753 nm. Freshly purified BICMV preparations showed a single sedimenting peak with s20 =157-159 s. The purified BICMV cytoplasmic inclusions had absorption spectra characteristic for proteins. Electron microscopy of purified inclusions revealed the presence of tubes showing striations with periodicities of approximately 5 nm. Antisera reactive in SDS-immunodiffusion were obtained against untreated virions, pyrrolidine degraded cell protein, and untreated BICMV cytoplasmic incluions. Reciprocal double immunodiffusion tests with SDS-treated antigens showed that BICMV is serologically unrelated to seven potyviruses and serologically related to, but distinct from: bean common mosaic virus (BCMV), bean yellow mosaic virus (BY... Mostrar Tudo |
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Palavras-Chave: |
Serologia; Técnica citológica; Virose. |
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Thesagro: |
Doença; Purificação; Semente. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 04465nam a2200205 a 4500
001 1843840
005 2013-02-09
008 1978 bl uuuu u0uu1 u #d
100 1 $aLIMA, J. A. A.
245 $aBlackeye cowpea mosaic virus$bpurification, partial characterization, serology, and immunochemical and cytological techniques for detection of virus-infected legume seeds.
260 $a[S.l.: s.n.]$c1978
300 $a3 p.
500 $aResumo de Tese.
520 $aBlackeye cowpea mosaic virus (BICMV) was increased in cowpea, Vigna unguiculata (L.) Walp., 'knuckle purple hull', and infected leaves were used for virus and cytoplasmic inclusion purification. Either n-butanol or a combination of chloroform and carbon tetrachloride was used in the clarification process. Polyacrylamide gel electrophoresis of sodium dodecyl sulfate (SDS) dissociated inclusions and virus revealed that the inclusions were made of a single protein estimated to have a molecular weight (MW) around 70.000 daltons whereas freshly purified BICMV consisted of a main protein component with a MW of 34,000 daltons and two smaller proteins with WMs of 29,000 and 27,000 daltons, Purified BICMV had a 260/280 nm absorption ration of 1.2 and a modal length of 753 nm. Freshly purified BICMV preparations showed a single sedimenting peak with s20 =157-159 s. The purified BICMV cytoplasmic inclusions had absorption spectra characteristic for proteins. Electron microscopy of purified inclusions revealed the presence of tubes showing striations with periodicities of approximately 5 nm. Antisera reactive in SDS-immunodiffusion were obtained against untreated virions, pyrrolidine degraded cell protein, and untreated BICMV cytoplasmic incluions. Reciprocal double immunodiffusion tests with SDS-treated antigens showed that BICMV is serologically unrelated to seven potyviruses and serologically related to, but distinct from: bean common mosaic virus (BCMV), bean yellow mosaic virus (BYMC), cowpea aphid-borne mosaic virus CAMV), dasheen mosaic (DMV), lettuce mosaic virus (LMV), potato virus y (PVY), soybean mosaic virus (SoyMV), tobacco etch virus (TEV), and watermelon mosaic virus-2 (WMV-2). The intragel cross-absorption technique was also used to demonstrate distinction between closely related potyviruses. Agar medium impregnated with a mixture of antisera used for serodiagnosis of BICMV and cowpea mosaic virus in cowpea. Light and electron microscopy of cytoplasmic inclusions induced by BICMV, siratro (Macroptilium atropurpureum (D.C.) Urb.) strain of BCMV (BCMV-S) and CAMV revealed that they are similar to those induced by the potyviruses from Edwardson's subdivision-l. The different reactions induced by BICMV, and CAMV in some cowpea varieties indicated that they can also be used as used as differential hosts for these three potyviruses. Sources of resistance for BICMV were found among the cowpea varieties tested. Based on its physical, biological, cytological, and immunochemical properties, BICMV can be differentiated fron any other virus that infects cowpea. Cytoplasmic inclusions induced by BICMV in cowpea and by SoyMV in soybean were detected by serology, light microscopy, and electron microscopy in hypocotyls of 4-5-day-old seedlings grown from virus-infected seeds. Immunodiffusion tests and serologically specific electrom microscopy were used to detect BICMV in hypocotyls of 4-5-day-old cowpea seedlings grown from BICMV-infected seeds. Discs of individual hypocotyls were embedded into the agar medium 4-5 mm away from the antiserum wells. Virus-specific precipitin lines formed between virus-infected hypocotyl discs and antiserum wells, whereas no reactinos were observed with healthy hypocotyls. Precipitin lines were also observed with extracts of mixtures from infected (1 g) and healthy (up to 29 g) tissues. These immunochemical techniques were also used for detecting BCMC in hypocotyls of infected 4-5-day-old Phaseolus vulgaris L. seedlings and for detecting SoyMV in infected Glycine max (L) Merr. seedlings. Single radial immunodiffusion tests with extracts or discs of cowpea hypocotyls were also useful for detecting BICMV in germinated seeds. The reliability and simplicity of the immunodiffusion tests make them suitable for use in routine seed health testing program in any laboratory.
650 $aDoença
650 $aPurificação
650 $aSemente
653 $aSerologia
653 $aTécnica citológica
653 $aVirose
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Registro original: |
Embrapa Trigo (CNPT) |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
20/09/1999 |
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Data da última atualização: |
25/05/2017 |
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Autoria: |
ALMEIDA, R. F. C. de; SOARES, C. O.; ARAÚJO, F. R. de (ed.). |
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Título: |
Brucelose e tuberculose bovina: epidemiologia, controle e diagnóstico. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Brasília, DF: Embrapa Informação Tecnológica, 2004. |
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Páginas: |
94 p. |
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ISBN: |
85-7383-266-5 |
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Idioma: |
Português |
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Notas: |
CNPGC. |
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Conteúdo: |
A brucelose e a tuberculose bovina são doenças infeccios de grande impacto para a cadeia da pecuária bovina no Brasil e no mundo, pois, além de determinarem sérios prejuízos diretos e indiretos ao sistema produtivo, constituem importantes zoonoses. Dessa forma, este livro foi estruturado em duas partes: uma contemplando a enfermidade brucelose bovina e a outra versando sobre a tuberculose bovina. Para cada enfermidade, é abordado um capítulo relativo aos aspectos de epidemiologia e controle, e outro tratando exclusivamente do diagnóstico. |
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Palavras-Chave: |
Animal sanity; Bovine; Bovino - Doença; Brucelose Bovina; Control; Controle; Diagnosis; Disease; Tuberculose Bovina. |
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Thesagro: |
Bovino; Brucelose; Diagnostico; Doença; Doença Animal; Epidemiologia; Gado; Sanidade Animal; Tuberculose. |
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Thesaurus NAL: |
animal diseases; animal health; brucellosis; cattle; epidemiology; tuberculosis. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/104543/1/Brucelose-e-tuberculose-bovina-2.pdf
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Marc: |
LEADER 01694nam a2200457 a 4500
001 1325789
005 2017-05-25
008 2004 bl uuuu 00u1 u #d
020 $a85-7383-266-5
100 1 $aALMEIDA, R. F. C. de
245 $aBrucelose e tuberculose bovina$bepidemiologia, controle e diagnóstico.
260 $aBrasília, DF: Embrapa Informação Tecnológica$c2004
300 $a94 p.
500 $aCNPGC.
520 $aA brucelose e a tuberculose bovina são doenças infeccios de grande impacto para a cadeia da pecuária bovina no Brasil e no mundo, pois, além de determinarem sérios prejuízos diretos e indiretos ao sistema produtivo, constituem importantes zoonoses. Dessa forma, este livro foi estruturado em duas partes: uma contemplando a enfermidade brucelose bovina e a outra versando sobre a tuberculose bovina. Para cada enfermidade, é abordado um capítulo relativo aos aspectos de epidemiologia e controle, e outro tratando exclusivamente do diagnóstico.
650 $aanimal diseases
650 $aanimal health
650 $abrucellosis
650 $acattle
650 $aepidemiology
650 $atuberculosis
650 $aBovino
650 $aBrucelose
650 $aDiagnostico
650 $aDoença
650 $aDoença Animal
650 $aEpidemiologia
650 $aGado
650 $aSanidade Animal
650 $aTuberculose
653 $aAnimal sanity
653 $aBovine
653 $aBovino - Doença
653 $aBrucelose Bovina
653 $aControl
653 $aControle
653 $aDiagnosis
653 $aDisease
653 $aTuberculose Bovina
700 1 $aSOARES, C. O.
700 1 $aARAÚJO, F. R. de
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