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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
11/12/2009 |
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Data da última atualização: |
25/02/2010 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
ANTONIOLI-LUIZON, R.; FREITAS-ÁSTUA, J.; REZENDE, J. A. M.; MACHADO, M. A.; KITAJIMA, E. W. |
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Afiliação: |
Renata Antonioli-Luizon, IAC; Juliana Freitas-Ástua, CNPMF/IAC; Jorge Alberto Marques Rezende, ESALQ/USP; Marcos Antônio Machado, IAC; Elliot Watanabe Kitajima, ESALQ/USP. |
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Título: |
Detecção específica do vírus da pinta verde do maracujazeiro por RT-PCR. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Tropical Plant Pathology, Brasília, DF, v. 34, ago. 2009. Suplemento. |
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ISSN: |
1982-5676 |
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Idioma: |
Português |
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Notas: |
Edição dos Resumos do XLII Congresso Brasileiro de Fitopatologia, Rio de Janeiro, ago. 2009. Suplemento. Resumo 907. |
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Conteúdo: |
O vírus da pinta verde do maracujazeiro (Passion fruit green spot virus - PFGSV) se caracteriza por induzir a formação de manchas verdes em frutos e folhas e lesões necróticas em ramos de maracujazeiro. Seu controle é essencialmente através do manejo químico do ácaro vetor, Brevipalpus sp. Apesar do relato inicial há 10 anos em Vera Cruz-SP, pouco se sabe sobre o PFGSV e apenas recentemente foi desenvolvida uma ferramenta molecular para o diagnóstico da doença, através de primers desenhados para a região putativa dos genes de proteína de movimento (MP) e replicase (Rep) do vírus. O objetivo deste trabalho foi confirmar a especificidade destes primers para o PFGSV, visto que plantas de maracujá são comumente infectadas por outros vírus, como o Cowpea aphid borne mosaic virus (CABMV) passiflora strain e o Cucumber mosaic virus (CMV). RNAs de plantas de maracujá sadias e sintomáticas para PFGSV e CABMV, plantas de fumo e de abobrinha 'Caserta' sadias e sintomáticas para CMV foram utilizadas como molde para RT-PCR. Somente plantas infectadas com PFGSV apresentaram resultados positivos, confirmando a especificidade destes primers como uma ferramenta confiável para a diagnose da doença. |
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Thesagro: |
Doença de Planta. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 01927naa a2200205 a 4500
001 1656391
005 2010-02-25
008 2009 bl uuuu u00u1 u #d
022 $a1982-5676
100 1 $aANTONIOLI-LUIZON, R.
245 $aDetecção específica do vírus da pinta verde do maracujazeiro por RT-PCR.
260 $c2009
500 $aEdição dos Resumos do XLII Congresso Brasileiro de Fitopatologia, Rio de Janeiro, ago. 2009. Suplemento. Resumo 907.
520 $aO vírus da pinta verde do maracujazeiro (Passion fruit green spot virus - PFGSV) se caracteriza por induzir a formação de manchas verdes em frutos e folhas e lesões necróticas em ramos de maracujazeiro. Seu controle é essencialmente através do manejo químico do ácaro vetor, Brevipalpus sp. Apesar do relato inicial há 10 anos em Vera Cruz-SP, pouco se sabe sobre o PFGSV e apenas recentemente foi desenvolvida uma ferramenta molecular para o diagnóstico da doença, através de primers desenhados para a região putativa dos genes de proteína de movimento (MP) e replicase (Rep) do vírus. O objetivo deste trabalho foi confirmar a especificidade destes primers para o PFGSV, visto que plantas de maracujá são comumente infectadas por outros vírus, como o Cowpea aphid borne mosaic virus (CABMV) passiflora strain e o Cucumber mosaic virus (CMV). RNAs de plantas de maracujá sadias e sintomáticas para PFGSV e CABMV, plantas de fumo e de abobrinha 'Caserta' sadias e sintomáticas para CMV foram utilizadas como molde para RT-PCR. Somente plantas infectadas com PFGSV apresentaram resultados positivos, confirmando a especificidade destes primers como uma ferramenta confiável para a diagnose da doença.
650 $aDoença de Planta
700 1 $aFREITAS-ÁSTUA, J.
700 1 $aREZENDE, J. A. M.
700 1 $aMACHADO, M. A.
700 1 $aKITAJIMA, E. W.
773 $tTropical Plant Pathology, Brasília, DF$gv. 34, ago. 2009. Suplemento.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Territorial. |
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Data corrente: |
09/08/2013 |
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Data da última atualização: |
19/10/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
ESPÍRITO-SANTO, F. D. B.; KELLER, M. M.; LINDER, E.; OLIVEIRA JUNIOR, R. C. de; PEREIRA, C.; OLIVEIRA, C. G. |
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Afiliação: |
Fernando D. B. Espírito-Santo, University of New Hampshire / Radar Science and Engineering Section; Michael M. Keller, University of New Hampshire / USDA / CNPM; Ernst Linder, University of New Hampshire; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; Cleuton Pereira, CPATU; Cleber G. Oliveira, INPE. |
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Título: |
Gap formation and carbon cycling in the Brazilian Amazon: measurement using high-resolution optical remote sensing and studies in large forest plots. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Plant Ecology & Diversity, v. 7, n. 1/2, p. 305-318, 2014. |
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ISSN: |
1755-0874 |
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DOI: |
10.1080/17550874.2013.795629 |
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Idioma: |
Inglês
Português |
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Conteúdo: |
Background: The dynamics of gaps plays a role in the regimes of tree mortality, production of coarse woody debris (CWD) and the variability of light in the forest understory. Aims: To quantify the area affected by, and the carbon fluxes associated with, natural gap-phase disturbances in a tropical lowland evergreen rain forest by use of ground measurements and high-resolution satellite images. Methods:We surveyed two large forest inventory plots of 114 and 53 ha of the Tapajós National Forest (TNF) in the Brazilian Amazon during 2008 and 2009, respectively. We mapped all gaps and collected data on light availability, CWD stocks and tree mortality in the field. Gap location, canopy openness (CO) and leaf area index (LAI) estimated in the field were compared with two IKONOS?2 high-resolution satellite images acquired at approximately the time of the field measurements. Results: In the two large plots (167 ha total area) we found 96 gaps. The gaps represented 1.42% of the total area and gaps <1-year-old accounted for 0.81% of the plot area. In TNF, the production of CWD in recent gaps was 0.76 Mg C ha−1 year−1 and the mean tree mortality was 2.38 stems ha−1 year−1. The area of gaps estimated using thresholds of light intensity measured by remote sensing optical instruments was twice as large as the gap areas measured on the ground. We found no significant correlation between spectral remote sensing images and CO or LAI, probably due to the high degree of shadow in the high-resolution satellite images. Conclusions: We present the first statistics of CWD production based on gap size in the tropical forest literature. Tree mortality and CWD flux and the forest floor light environment were closely related to gap area. However, less than 30% of the annual tree mortality and CWD flux was associated with gaps, and gaps were difficult to detect using remote sensing methods because of the high proportion of shadow in the images. These results highlight the need for permanent plots in long-term carbon studies. MenosBackground: The dynamics of gaps plays a role in the regimes of tree mortality, production of coarse woody debris (CWD) and the variability of light in the forest understory. Aims: To quantify the area affected by, and the carbon fluxes associated with, natural gap-phase disturbances in a tropical lowland evergreen rain forest by use of ground measurements and high-resolution satellite images. Methods:We surveyed two large forest inventory plots of 114 and 53 ha of the Tapajós National Forest (TNF) in the Brazilian Amazon during 2008 and 2009, respectively. We mapped all gaps and collected data on light availability, CWD stocks and tree mortality in the field. Gap location, canopy openness (CO) and leaf area index (LAI) estimated in the field were compared with two IKONOS?2 high-resolution satellite images acquired at approximately the time of the field measurements. Results: In the two large plots (167 ha total area) we found 96 gaps. The gaps represented 1.42% of the total area and gaps <1-year-old accounted for 0.81% of the plot area. In TNF, the production of CWD in recent gaps was 0.76 Mg C ha−1 year−1 and the mean tree mortality was 2.38 stems ha−1 year−1. The area of gaps estimated using thresholds of light intensity measured by remote sensing optical instruments was twice as large as the gap areas measured on the ground. We found no significant correlation between spectral remote sensing images and CO or LAI, probably due to the high degree of... Mostrar Tudo |
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Palavras-Chave: |
Amazon; Canopy opening; Coarse wood debris gaps; IKONOS; Leaf area index natural disturbances; Tropical forest. |
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Thesaurus NAL: |
Remote sensing. |
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Categoria do assunto: |
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P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02993naa a2200289 a 4500
001 1982764
005 2022-10-19
008 2014 bl uuuu u00u1 u #d
022 $a1755-0874
024 7 $a10.1080/17550874.2013.795629$2DOI
100 1 $aESPÍRITO-SANTO, F. D. B.
245 $aGap formation and carbon cycling in the Brazilian Amazon$bmeasurement using high-resolution optical remote sensing and studies in large forest plots.$h[electronic resource]
260 $c2014
520 $aBackground: The dynamics of gaps plays a role in the regimes of tree mortality, production of coarse woody debris (CWD) and the variability of light in the forest understory. Aims: To quantify the area affected by, and the carbon fluxes associated with, natural gap-phase disturbances in a tropical lowland evergreen rain forest by use of ground measurements and high-resolution satellite images. Methods:We surveyed two large forest inventory plots of 114 and 53 ha of the Tapajós National Forest (TNF) in the Brazilian Amazon during 2008 and 2009, respectively. We mapped all gaps and collected data on light availability, CWD stocks and tree mortality in the field. Gap location, canopy openness (CO) and leaf area index (LAI) estimated in the field were compared with two IKONOS?2 high-resolution satellite images acquired at approximately the time of the field measurements. Results: In the two large plots (167 ha total area) we found 96 gaps. The gaps represented 1.42% of the total area and gaps <1-year-old accounted for 0.81% of the plot area. In TNF, the production of CWD in recent gaps was 0.76 Mg C ha−1 year−1 and the mean tree mortality was 2.38 stems ha−1 year−1. The area of gaps estimated using thresholds of light intensity measured by remote sensing optical instruments was twice as large as the gap areas measured on the ground. We found no significant correlation between spectral remote sensing images and CO or LAI, probably due to the high degree of shadow in the high-resolution satellite images. Conclusions: We present the first statistics of CWD production based on gap size in the tropical forest literature. Tree mortality and CWD flux and the forest floor light environment were closely related to gap area. However, less than 30% of the annual tree mortality and CWD flux was associated with gaps, and gaps were difficult to detect using remote sensing methods because of the high proportion of shadow in the images. These results highlight the need for permanent plots in long-term carbon studies.
650 $aRemote sensing
653 $aAmazon
653 $aCanopy opening
653 $aCoarse wood debris gaps
653 $aIKONOS
653 $aLeaf area index natural disturbances
653 $aTropical forest
700 1 $aKELLER, M. M.
700 1 $aLINDER, E.
700 1 $aOLIVEIRA JUNIOR, R. C. de
700 1 $aPEREIRA, C.
700 1 $aOLIVEIRA, C. G.
773 $tPlant Ecology & Diversity$gv. 7, n. 1/2, p. 305-318, 2014.
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