| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Cerrados. |
|
Data corrente: |
17/10/2012 |
|
Data da última atualização: |
17/10/2012 |
|
Autoria: |
DIANESE, A. de C. |
|
Afiliação: |
ALEXEI DE CAMPOS DIANESE, CPAC. |
|
Título: |
Importance of nutritional similarity in pre-emptive biocontrol of bacterial spot. |
|
Ano de publicação: |
1997 |
|
Fonte/Imprenta: |
1997. |
|
Idioma: |
Português |
|
Notas: |
Thesi (Master of Science)- Auburn University, Auburn, 1997. |
|
Conteúdo: |
It was hypothesized that the effectiveness of a nonpathogenic epiphytic bacterium as a pre-emptive biocontrol agent of an epiphytic phytopathogenic bacterium should be related to the nutritional similarity between the nonpathogenic bacterium and the target pathogen. This was investigated using X. Axonopodis pv.vesicatoria on tomato.Two parameters were used to quantify pre-emptive: biocontrol effectiveness: disease severity (lesions/cm², and pathogen population size on the leaf ( CFU/leaf). Pre-emptive biocontrol effectiveness was quantified as mean percent disease and population reduction in greenhouse and growth chamber assays, respectively, in which 34 nonpathogenic epiphytes (10 CFU/ ml) were each inoculated individually 48 -H in advance of the pathogen X. ª pv. Vesicatoria strain AD17 rif3 (10 CFU/ml ? greenhouse; 10¨CFU/ml ? growth camber) onto tomato plants (cv. Agriset 761). Nutritional similarity between the nonpathogenic epiphytic bacteria and prototrophic X. pv. Vesicatoria strain AD17rif3 was quantified using a niche overlap indices (NOI), and relatedness ( Euclidian Distance or Coefficient of similarity) in cluster analyses, based upon in vitro carbon and nitrogen sources reported to be present in tomato, and Biolog GN nutritional profiles. There was no correlation between preemptive biocontrol effectiveness, quantified using reduction in disease severity and in pathogen population size, and nutritional similarity, based on carbon or nitrogen source utilization profiles. MenosIt was hypothesized that the effectiveness of a nonpathogenic epiphytic bacterium as a pre-emptive biocontrol agent of an epiphytic phytopathogenic bacterium should be related to the nutritional similarity between the nonpathogenic bacterium and the target pathogen. This was investigated using X. Axonopodis pv.vesicatoria on tomato.Two parameters were used to quantify pre-emptive: biocontrol effectiveness: disease severity (lesions/cm², and pathogen population size on the leaf ( CFU/leaf). Pre-emptive biocontrol effectiveness was quantified as mean percent disease and population reduction in greenhouse and growth chamber assays, respectively, in which 34 nonpathogenic epiphytes (10 CFU/ ml) were each inoculated individually 48 -H in advance of the pathogen X. ª pv. Vesicatoria strain AD17 rif3 (10 CFU/ml ? greenhouse; 10¨CFU/ml ? growth camber) onto tomato plants (cv. Agriset 761). Nutritional similarity between the nonpathogenic epiphytic bacteria and prototrophic X. pv. Vesicatoria strain AD17rif3 was quantified using a niche overlap indices (NOI), and relatedness ( Euclidian Distance or Coefficient of similarity) in cluster analyses, based upon in vitro carbon and nitrogen sources reported to be present in tomato, and Biolog GN nutritional profiles. There was no correlation between preemptive biocontrol effectiveness, quantified using reduction in disease severity and in pathogen population size, and nutritional similarity, based on carbon or nitrogen source utilizati... Mostrar Tudo |
|
Thesaurus Nal: |
plant pathology. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01921nam a2200133 a 4500
001 1937045
005 2012-10-17
008 1997 bl uuuu m 00u1 u #d
100 1 $aDIANESE, A. de C.
245 $aImportance of nutritional similarity in pre-emptive biocontrol of bacterial spot.
260 $a1997.$c1997
500 $aThesi (Master of Science)- Auburn University, Auburn, 1997.
520 $aIt was hypothesized that the effectiveness of a nonpathogenic epiphytic bacterium as a pre-emptive biocontrol agent of an epiphytic phytopathogenic bacterium should be related to the nutritional similarity between the nonpathogenic bacterium and the target pathogen. This was investigated using X. Axonopodis pv.vesicatoria on tomato.Two parameters were used to quantify pre-emptive: biocontrol effectiveness: disease severity (lesions/cm², and pathogen population size on the leaf ( CFU/leaf). Pre-emptive biocontrol effectiveness was quantified as mean percent disease and population reduction in greenhouse and growth chamber assays, respectively, in which 34 nonpathogenic epiphytes (10 CFU/ ml) were each inoculated individually 48 -H in advance of the pathogen X. ª pv. Vesicatoria strain AD17 rif3 (10 CFU/ml ? greenhouse; 10¨CFU/ml ? growth camber) onto tomato plants (cv. Agriset 761). Nutritional similarity between the nonpathogenic epiphytic bacteria and prototrophic X. pv. Vesicatoria strain AD17rif3 was quantified using a niche overlap indices (NOI), and relatedness ( Euclidian Distance or Coefficient of similarity) in cluster analyses, based upon in vitro carbon and nitrogen sources reported to be present in tomato, and Biolog GN nutritional profiles. There was no correlation between preemptive biocontrol effectiveness, quantified using reduction in disease severity and in pathogen population size, and nutritional similarity, based on carbon or nitrogen source utilization profiles.
650 $aplant pathology
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Cerrados (CPAC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 103 | |
| 5. |  | DIANESE, A. de C.; DIANESE, J. C. A new cercosporoid causing leaf spots on jatropha curcas. In: CONGRESSO BRASILEIRO DE PESQUISA EM PINHÃO MANSO, 1., 2009, Brasília, DF. Anais... Brasília, DF: Embrapa Agroenergia; São Paulo: ABPPM, 2009. 1 CD-ROM. Editores: Bruno Galveas Laviola, Sérgio Delmar dos Anjos e Silva, Júlio César Albrecht.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Cerrados. |
|   |
| 11. | | DIANESE, A. de C.; CARGNIN, A. Ocorrência de Oidium sp. em pinhão-manso (Jatropha curcas L.). em Planaltina-DF. In: SIMPÓSIO NACIONAL CERRADO, 9.; SIMPÓSIO INTERNACIONAL SAVANAS TROPICAIS, 2., 2008, Brasília, DF. Desafios e estratégias para o equilíbrio entre sociedade, agronegócio e recursos naturais: anais... Planaltina, DF: Embrapa Cerrados, 2008. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Cerrados. |
| |
| 19. | | DIANESE, A. de C.; BLUM, L. E. B.; DUTRA, J. B.; LOPES, L. F. Aplicação de fosfito de potássio, cálcio ou magnésio para a redução da podridão-do-pé do mamoeiro em casa de vegetação. Ciência Rural, v.39, n.8, nov., p. 2309 - 2314, 2000.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Cerrados. |
| |
| Registros recuperados : 103 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
