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| Registros recuperados : 47 | |
| 4. |  | KIST, H. G. K.; RAMOS, J. D.; SANTOS, V. A. dos; RUFINI, J. C. M. Fenologia e escalonamento da produção do abacaxizeiro 'Smooth Cayenne' no Cerrado de Mato Grosso. Pesquisa agropecuária Brasileira, Brasília, DF, v. 46, n. 9, p. 992-997, set. 2011 Título em inglês: Phenology and production scheduling of 'Smooth Cayenne' pineapple in Mato Grosso's Cerrado.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 5. | | VALE, H. S. do; CHAGAS, E. A.; SANTOS, V. A. dos; SPIES, V.; CHAGAS, P. C. Desempenho agronômico de cultivares de maracujazeiros em condições de cerrado de Roraima. In: ENCONTRO DO PROGRAMA DE INICIAÇÃO CIENTÍFICA, EPIC, 15., 2016, Boa Vista. Anais... Boa Vista, RR: UFRR, 2016.| Biblioteca(s): Embrapa Roraima. |
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| 6. | | ALMEIDA, M. S.; LIMA, C. G. B.; SANTOS, V. A. dos; CHAGAS, E. A. Desenvolvimento de mudas de camu-camu sob influência de telados com diferentes intensidades luminosas. In: ENCONTRO DO PROGRAMA DE INICIAÇÃO CIENTÍFICA, 14., 2015, Boa Vista, RR. Anais... Boa Vista, RR: UFRR, 2015.| Biblioteca(s): Embrapa Roraima. |
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| 7. | | FERREIRA, M. W. de M.; CHAGAS, E. A.; SANTOS, V. A. dos; MOTA FILHO, A. B. Desenvolvimento de mudas de taperebá com uso de substratos alternativos. In: ENCONTRO DO PROGRAMA DE INICIAÇÃO CIENTÍFICA, 14., 2015, Boa Vista, RR. Anais... Boa Vista, RR: UFRR, 2015.| Biblioteca(s): Embrapa Roraima. |
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| 8. | | MOTA FILHO, A. B.; CHAGAS, E. A.; SANTOS, V. A. dos; CHAGAS, P. C. Validação de substrato para produção de mudas de camu-camuzeiro. In: ENCONTRO DO PROGRAMA DE INICIAÇÃO CIENTÍFICA, 14., 2015, Boa Vista, RR. Anais... Boa Vista, RR: UFRR, 2015.| Biblioteca(s): Embrapa Roraima. |
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| 9. | | MATOS, W. da S.; CHAGAS, E. A.; SANTOS, V. A. dos; SILVA, D. L. da. Uso de NPK em cobertura no crescimento de mudas de camu-camu. In: ENCONTRO DO PROGRAMA DE INICIAÇÃO CIENTÍFICA, 13., 2014, Boa Vista, RR. Anais... Boa Vista, RR: UFRR, 2015.| Biblioteca(s): Embrapa Roraima. |
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| 10. | | FERREIRA, M. W. de M.; CHAGAS, E. A.; ANDRADE, J. C. de; SANTOS, V. A. dos; LOZANO, R. M. B. Enraizamento de estacas de camu-camu em câmara de subirrigação sob diferentes doses de aib e tempos de imersão. In: ENCONTRO DO PROGRAMA DE INICIAÇÃO CIENTÍFICA, 13., 2014, Boa Vista,RR. Anais... Boa Vista, RR: UFRR, 2015.| Biblioteca(s): Embrapa Roraima. |
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| 11. | | AZEVEDO, K. M. B.; CHAGAS, E. A.; ANDRADE, J. K. C. de; SANTOS, V. A. dos; LOZANO, R. M. B. Enraizamento de estacas camu-camu em câmara de subirrigação sob diferentes doses e tempos de imersão em ana. In: ENCONTRO DO PROGRAMA DE INICIAÇÃO CIENTÍFICA, 13., 2014, Boa Vista, RR. Anais... Boa Vista, RR: UFRR, 2015.| Biblioteca(s): Embrapa Roraima. |
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| 12. | | SOBRAL, A. T. M.; CHAGAS, E. A.; ANDRADE, J. K. C. de; SANTOS, V. A. dos; LOZANO, R. M. B. Enraizamento de estacas de diferentes populações de camu-camu em câmara de subirrigação. In: ENCONTRO DO PROGRAMA DE INICIAÇÃO CIENTÍFICA, 13., 2014, Boa Vista, RR. Anais... Boa Vista, RR: UFRR, 2015.| Biblioteca(s): Embrapa Roraima. |
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| 13. | | TAVEIRA, D. L. L.; CHAGAS, P. C.; SANTOS, V. A. dos; ALVEZ, T. A. A.; CHAGAS, E. A. Índice de qualidade e crescimento de mudas de ateira com uso de NPK. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 24., 2016, São Luis. Fruticultura: fruteiras nativas e sustentabilidade. São Luis, MA: SBF, 2016.| Biblioteca(s): Embrapa Roraima. |
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| 14. | | SILVA, A. V. de S.; CHAGAS, P. C.; SANTOS, V. A. dos; OLIVEIRA, R. R.; CHAGAS, E. A. Acúmulo de massa seca em mudas de pinha com uso de nitrato de potássio e intervalo de aplicação. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 24., 2016, São Luis. Fruticultura: fruteiras nativas e sustentabilidade. São Luis, MA: SBF, 2016.| Biblioteca(s): Embrapa Roraima. |
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| 15. | | RIBEIRO, I. G.; CHAGAS, E. A.; SANTOS, V. A. dos; LOZANO, R. B.; SOUSA, O. M.; ARAÚJO, W. F. Efeito da cobertura e substrato na emergência de camu-camu e crescimento de porta-enxertos. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 22., 2012, Bento Gonçalves. Anais... Bento Gonçalves: SBF, 2012.| Biblioteca(s): Embrapa Roraima. |
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| 17. | | MOURA, E. A. de; BACELAR-LIMA, C. G.; CHAGAS, E. A.; SILVA, M. L. da; SANTOS, V. A. dos. Avaliação da influência de diferentes coberturas na germinação e emergência de plântulas de cupuaçu (Theobroma grandiflorum (Willd. ex spreng.) Shum). In: ENCONTRO DO PROGRAMA DE INICIAÇÃO CIENTÍFICA, 11., 2012, Boa Vista. Resumos... Boa Vista, RR: UFRR, 2012.| Biblioteca(s): Embrapa Roraima. |
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| 18. | | RODRIGUES, C. A.; CHAGAS, E. A.; SANCHEZ-CHOY, J.; SANTOS, V. A. dos; LOZANO, R. M. B.; RIOS, G. S. Capacidad de enraizamiento de plantas matrices promisorias de Myrciaria dubia en cámaras de subirrigación. Revista Ceres, Viçosa, v. 60, n.6, p. 447-450, nov/dez, 2013.| Biblioteca(s): Embrapa Roraima. |
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| 19. | | MACIEL, D. H. R.; SANTOS, V. A. dos; CHAGAS, E. A.; LIMA, H. E. de; MENDES, C. R. Avaliação e seleção de cupuaçuzeiros tolerantes a vassoura de bruxa. In: ENCONTRO DO PROGRAMA DE INICIAÇÃO CIENTÍFICA, 13., 2014, Boa Vista, RR. Anais... Boa Vista, RR: UFRR, 2015.| Biblioteca(s): Embrapa Roraima. |
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| Registros recuperados : 47 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
16/09/2015 |
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Data da última atualização: |
21/06/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SOARES, A. P. G.; GUILLIN, E. A.; BORGES, L. L.; SILVA, A. C. T. da; ALMEIDA, A. M. R. de; GRIJALBA, P. E.; GOTTLIEB, A. M.; BLUHM, B. H.; OLIVEIRA, L. O. de. |
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Afiliação: |
ANA PAULA GOMES SOARES, UFV; EDUARDO A. GUILLIN, INTA; LEANDRO LUIZ BORGES, UFV; Amanda C. T. da Silva, UFV; ALVARO MANUEL RODRIGUES ALMEIDA, CNPSO; PABLO E. GRIJALBA, Universidad de Buenos Aires; ALEXANDRA M. GOTTLIEB, CONICET; BURTON H. BLUHM, University of Arkansas; LUIZ ORLANDO DE OLIVEIRA, UFV. |
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Título: |
More Cercospora species infect soybeans across the Americas than meets the eye. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Plos One, v. 10, n. 8, e0133495, Aug. 2015. |
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DOI: |
10.1371/journal.pone.0133495 |
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Idioma: |
Inglês |
|
Conteúdo: |
Diseases of soybean caused by Cercospora spp. are endemic throughout the world's soybean production regions. Species diversity in the genus Cercospora has been underestimated due to overdependence on morphological characteristics, symptoms, and host associations. Currently, only two species (Cercospora kikuchii and C. sojina) are recognized to infect soybean; C. kikuchii causes Cercospora leaf blight (CLB) and purple seed stain (PSS), whereas C. sojina causes frogeye leaf spot. To assess cryptic speciation among pathogens causing CLB and PSS, phylogenetic and phylogeographic analyses were performed with isolates from the top three soybean producing countries (USA, Brazil, and Argentina; collectively accounting for ~80% of global production). Eight nuclear genes and one mitochondrial gene were partially sequenced and analyzed. Additionally, amino acid substitutions conferring fungicide resistance were surveyed, and the production of cercosporin (a polyketide toxin produced bymany Cercospora spp.) was assessed. From these analyses, the longheld assumption of C. kikuchii as the single causal agent of CLB and PSS was rejected experimentally. Four cercosporin-producing lineages were uncovered with origins (about 1 Mya) predicted to predate agriculture. Some of the Cercospora spp. newly associated with CLB and PSS appear to represent undescribed species; others were not previously reported to infect soybeans. Lineage 1, which contained the ex-type strain of C. kikuchii, was monophyletic and occurred in Argentina and Brazil. In contrast, lineages 2 and 3 were polyphyletic and contained wide-host range species complexes. Lineage 4 was monophyletic, thrived in Argentina and the USA, and included the generalist Cercospora cf. flagellaris. Interlineage recombination was detected, along with a high frequency of mutations linked to fungicide resistance in lineages 2 and 3. These findings point to cryptic Cercospora species as underappreciated global considerations for soybean production and phytosanitary vigilance, and urge a reassessment of host-specificity as a diagnostic tool for Cercospora. MenosDiseases of soybean caused by Cercospora spp. are endemic throughout the world's soybean production regions. Species diversity in the genus Cercospora has been underestimated due to overdependence on morphological characteristics, symptoms, and host associations. Currently, only two species (Cercospora kikuchii and C. sojina) are recognized to infect soybean; C. kikuchii causes Cercospora leaf blight (CLB) and purple seed stain (PSS), whereas C. sojina causes frogeye leaf spot. To assess cryptic speciation among pathogens causing CLB and PSS, phylogenetic and phylogeographic analyses were performed with isolates from the top three soybean producing countries (USA, Brazil, and Argentina; collectively accounting for ~80% of global production). Eight nuclear genes and one mitochondrial gene were partially sequenced and analyzed. Additionally, amino acid substitutions conferring fungicide resistance were surveyed, and the production of cercosporin (a polyketide toxin produced bymany Cercospora spp.) was assessed. From these analyses, the longheld assumption of C. kikuchii as the single causal agent of CLB and PSS was rejected experimentally. Four cercosporin-producing lineages were uncovered with origins (about 1 Mya) predicted to predate agriculture. Some of the Cercospora spp. newly associated with CLB and PSS appear to represent undescribed species; others were not previously reported to infect soybeans. Lineage 1, which contained the ex-type strain of C. kikuchii, was monoph... Mostrar Tudo |
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Thesagro: |
Doença de planta; Fungo; Soja. |
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Thesaurus NAL: |
Plant diseases and disorders; Soybeans. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/129722/1/More-Cercospora-Species-Infect-Soybeans.pdf
|
|
Marc: |
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100 1 $aSOARES, A. P. G.
245 $aMore Cercospora species infect soybeans across the Americas than meets the eye.$h[electronic resource]
260 $c2015
520 $aDiseases of soybean caused by Cercospora spp. are endemic throughout the world's soybean production regions. Species diversity in the genus Cercospora has been underestimated due to overdependence on morphological characteristics, symptoms, and host associations. Currently, only two species (Cercospora kikuchii and C. sojina) are recognized to infect soybean; C. kikuchii causes Cercospora leaf blight (CLB) and purple seed stain (PSS), whereas C. sojina causes frogeye leaf spot. To assess cryptic speciation among pathogens causing CLB and PSS, phylogenetic and phylogeographic analyses were performed with isolates from the top three soybean producing countries (USA, Brazil, and Argentina; collectively accounting for ~80% of global production). Eight nuclear genes and one mitochondrial gene were partially sequenced and analyzed. Additionally, amino acid substitutions conferring fungicide resistance were surveyed, and the production of cercosporin (a polyketide toxin produced bymany Cercospora spp.) was assessed. From these analyses, the longheld assumption of C. kikuchii as the single causal agent of CLB and PSS was rejected experimentally. Four cercosporin-producing lineages were uncovered with origins (about 1 Mya) predicted to predate agriculture. Some of the Cercospora spp. newly associated with CLB and PSS appear to represent undescribed species; others were not previously reported to infect soybeans. Lineage 1, which contained the ex-type strain of C. kikuchii, was monophyletic and occurred in Argentina and Brazil. In contrast, lineages 2 and 3 were polyphyletic and contained wide-host range species complexes. Lineage 4 was monophyletic, thrived in Argentina and the USA, and included the generalist Cercospora cf. flagellaris. Interlineage recombination was detected, along with a high frequency of mutations linked to fungicide resistance in lineages 2 and 3. These findings point to cryptic Cercospora species as underappreciated global considerations for soybean production and phytosanitary vigilance, and urge a reassessment of host-specificity as a diagnostic tool for Cercospora.
650 $aPlant diseases and disorders
650 $aSoybeans
650 $aDoença de planta
650 $aFungo
650 $aSoja
700 1 $aGUILLIN, E. A.
700 1 $aBORGES, L. L.
700 1 $aSILVA, A. C. T. da
700 1 $aALMEIDA, A. M. R. de
700 1 $aGRIJALBA, P. E.
700 1 $aGOTTLIEB, A. M.
700 1 $aBLUHM, B. H.
700 1 $aOLIVEIRA, L. O. de
773 $tPlos One$gv. 10, n. 8, e0133495, Aug. 2015.
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Embrapa Soja (CNPSO) |
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