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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
01/10/2009 |
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Data da última atualização: |
04/02/2010 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
DITA, M. A.; WAALWIJK, C.; PAIVA, L. V.; SOUZA JUNIOR, M. T.; KEMA, G. H. J. |
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Afiliação: |
Miguel Angel Dita Rodríguez, CNPMF; C. Waalwijk, PRI-Plant Research International; Luciano Vilela Paiva, UFLA; Manoel Teixeira Souza Junior, Embrapa LABEX Europe; Gert H. J. Kema, PRI-Plant Research International. |
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Título: |
A greenhouse bio-assay for the Fusarium oxysporum f. sp. cubense (Tropical Race 4) X banana (Cavendish subgroup) interaction. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: ISHS/PROMUSA BANANA SYMPOSIUM, 2009, Guangzhou, China. Global perspectives on asian challenges: programme and abstracts. Guangzhou: ISHS: Promusa, 2009. p. 45. |
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Idioma: |
Inglês |
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Conteúdo: |
Several disease resistance screening protocols for fusarium wilt of banana (causal agent Fusarium oxysporum f. sp. cubense-foc) under greenhouse conditions have been reported. However, a standard and worldwide accepted methodology is still undefined. A standardised greenhouse bioassay for this pathosystem is necessary for the identification of resistant banana genotypes and for detailed plant-pathogen interaction studies. This became especially important with the advent of tropical race 4 ( TR4), which is a significant threat for the global Cavendish-based banana export industry. Thiswork aimed to establish a reliable and rapid greenhouse biossayfor foc with a focus on the TR4- cavendish interaction. Using a doublepot system, hardened 3-months-old tissue-culture plants of 'Grand Naine' (AAA, Cavendish subgroup) were, separately, inoculated with three isolates, belonging to the Vegetative Compatiblility Group (VCG) 01213 and considered as TR4, and one isolate, ranked as race 1 with known pathogenicity on 'Silk' (AAB). Plants were inoculated by root dipping (30 minutes, 105 conidia/mL) and then transferred to pots partially filled with sand supplemented with 20 maize kernels, previously colonised with foc for 10 days. In TR4-inoculated plants, first symptoms appeared at 7 days after inoculation (dai) showing the typical external (yellowing) and internal (rhizome discoloration) symptoms at 14 dai. At 40 dai, TR4-inoculated plants showed severe wilting and internal necrosis even in the pseudostem. No symptoms were observed in plants inoculate with the race 1 isolate. All the TR4 isolates caused similar symptoms, and no differences regarding incubation period or severity were observed. In addition, all TR4 isolates were successfully recovered from the symptomatic rhizomes on Komada's medium. These results suggest that the bio-assay here described is suitable to screen banana germplasm for TR4 resistance, to discriminate Foc races and to help studies to elucidate the defence mechanism underlyng the Foc-banana interaction. MenosSeveral disease resistance screening protocols for fusarium wilt of banana (causal agent Fusarium oxysporum f. sp. cubense-foc) under greenhouse conditions have been reported. However, a standard and worldwide accepted methodology is still undefined. A standardised greenhouse bioassay for this pathosystem is necessary for the identification of resistant banana genotypes and for detailed plant-pathogen interaction studies. This became especially important with the advent of tropical race 4 ( TR4), which is a significant threat for the global Cavendish-based banana export industry. Thiswork aimed to establish a reliable and rapid greenhouse biossayfor foc with a focus on the TR4- cavendish interaction. Using a doublepot system, hardened 3-months-old tissue-culture plants of 'Grand Naine' (AAA, Cavendish subgroup) were, separately, inoculated with three isolates, belonging to the Vegetative Compatiblility Group (VCG) 01213 and considered as TR4, and one isolate, ranked as race 1 with known pathogenicity on 'Silk' (AAB). Plants were inoculated by root dipping (30 minutes, 105 conidia/mL) and then transferred to pots partially filled with sand supplemented with 20 maize kernels, previously colonised with foc for 10 days. In TR4-inoculated plants, first symptoms appeared at 7 days after inoculation (dai) showing the typical external (yellowing) and internal (rhizome discoloration) symptoms at 14 dai. At 40 dai, TR4-inoculated plants showed severe wilting and internal necrosis eve... Mostrar Tudo |
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Thesagro: |
Banana; Doença de Planta; Fusariose. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02770naa a2200205 a 4500
001 1655762
005 2010-02-04
008 2009 bl uuuu u00u1 u #d
100 1 $aDITA, M. A.
245 $aA greenhouse bio-assay for the Fusarium oxysporum f. sp. cubense (Tropical Race 4) X banana (Cavendish subgroup) interaction.
260 $c2009
520 $aSeveral disease resistance screening protocols for fusarium wilt of banana (causal agent Fusarium oxysporum f. sp. cubense-foc) under greenhouse conditions have been reported. However, a standard and worldwide accepted methodology is still undefined. A standardised greenhouse bioassay for this pathosystem is necessary for the identification of resistant banana genotypes and for detailed plant-pathogen interaction studies. This became especially important with the advent of tropical race 4 ( TR4), which is a significant threat for the global Cavendish-based banana export industry. Thiswork aimed to establish a reliable and rapid greenhouse biossayfor foc with a focus on the TR4- cavendish interaction. Using a doublepot system, hardened 3-months-old tissue-culture plants of 'Grand Naine' (AAA, Cavendish subgroup) were, separately, inoculated with three isolates, belonging to the Vegetative Compatiblility Group (VCG) 01213 and considered as TR4, and one isolate, ranked as race 1 with known pathogenicity on 'Silk' (AAB). Plants were inoculated by root dipping (30 minutes, 105 conidia/mL) and then transferred to pots partially filled with sand supplemented with 20 maize kernels, previously colonised with foc for 10 days. In TR4-inoculated plants, first symptoms appeared at 7 days after inoculation (dai) showing the typical external (yellowing) and internal (rhizome discoloration) symptoms at 14 dai. At 40 dai, TR4-inoculated plants showed severe wilting and internal necrosis even in the pseudostem. No symptoms were observed in plants inoculate with the race 1 isolate. All the TR4 isolates caused similar symptoms, and no differences regarding incubation period or severity were observed. In addition, all TR4 isolates were successfully recovered from the symptomatic rhizomes on Komada's medium. These results suggest that the bio-assay here described is suitable to screen banana germplasm for TR4 resistance, to discriminate Foc races and to help studies to elucidate the defence mechanism underlyng the Foc-banana interaction.
650 $aBanana
650 $aDoença de Planta
650 $aFusariose
700 1 $aWAALWIJK, C.
700 1 $aPAIVA, L. V.
700 1 $aSOUZA JUNIOR, M. T.
700 1 $aKEMA, G. H. J.
773 $tIn: ISHS/PROMUSA BANANA SYMPOSIUM, 2009, Guangzhou, China. Global perspectives on asian challenges: programme and abstracts. Guangzhou: ISHS: Promusa, 2009. p. 45.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Nenhum exemplar cadastrado para este documento. |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
02/03/2006 |
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Data da última atualização: |
29/06/2017 |
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Autoria: |
MACHADO, T. M.; SHIRATSUCHI, L. S.; SÁ, M. A. C. de; CORAZZA, E. J. |
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Título: |
Correlação entre índice de cone e produtividade de milho utilizando ferramentas da agricultura de precisão. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Planaltina, DF: Embrapa Cerrados, 2005. |
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Descrição Física: |
1 folder. |
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Idioma: |
Português |
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Palavras-Chave: |
Maize; Mapeamento; Precision farming; Productivity; Soil compactation. |
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Thesagro: |
Agricultura de Precisão; Compactação do Solo; Milho; Produtividade; Zea Mays. |
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Thesaurus NAL: |
cartography. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPAC-2009/26821/1/p2005_27.pdf
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Marc: |
LEADER 00791nam a2200277 a 4500
001 1569260
005 2017-06-29
008 2005 bl uuuu u0uu1 u #d
100 1 $aMACHADO, T. M.
245 $aCorrelação entre índice de cone e produtividade de milho utilizando ferramentas da agricultura de precisão.
260 $aPlanaltina, DF: Embrapa Cerrados$c2005
300 $c1 folder.
650 $acartography
650 $aAgricultura de Precisão
650 $aCompactação do Solo
650 $aMilho
650 $aProdutividade
650 $aZea Mays
653 $aMaize
653 $aMapeamento
653 $aPrecision farming
653 $aProductivity
653 $aSoil compactation
700 1 $aSHIRATSUCHI, L. S.
700 1 $aSÁ, M. A. C. de
700 1 $aCORAZZA, E. J.
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Registro original: |
Embrapa Cerrados (CPAC) |
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