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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
30/09/2002 |
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Data da última atualização: |
08/11/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
HUNGRIA, M.; CHUEIRE, L. M. de O.; COCA, R. G.; MEGIAS, M. |
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Afiliação: |
MARIANGELA HUNGRIA DA CUNHA, CNPSO; LIGIA MARIA DE OLIVEIRA CHUEIRE, CNPSO; RAQUEL G. COCA, UNIVERSIDAD DE SEVILLA; MANUEL MEGÍAS, UNIVERSIDAD DE SEVILLA. |
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Título: |
Preliminary characterization of fast growing rhizobial strains isolated from soyabean nodules in Brazil. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Soil Biology & Biochemistry, v. 33, n. 10, p. 1349-1361, 2001. |
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DOI: |
https://doi.org/10.1016/S0038-0717(01)00040-2 |
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Idioma: |
Inglês |
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Conteúdo: |
A survey of soyabean (Glycine max) rhizobia was carried out with six Asian and one modern soyabean genotypes as trap hosts. Soyabean seedlings were inoculated with soils from 22 Brazilian field sites, including undisturbed areas or areas traditionally cropped with this legume. A total of 30 fast growing strains, able to establish an effective symbiosis with both types of genotypes, were isolated from 12 of the 22 soils, representing 17% of the population in cropped areas and 24% in undisturbed soils. The bacterial mean generation time varied from 85 to 225 minutes and after 4 days of growth in YM medium the final pH ranged from 3.7 to 6.9. Although isolated from acid soils, only 37% of the strains were able to growing in TY or YM media at pH 4.0, while 60% were alkaline tolerant (pH 9.5). Most strains produced abundant extracellular polysaccharides (73%), were tolerant to 0.5 M NaCl (60%) and a temperature of 40°C (77%), grew in LB medium (67%) and synthesized melanin (53%). The strains differed in the use of C compounds supplied as sole C sources. The majority of the strains showed an intrinsic resistance to the antibiotics (µg ml-1) chloramphenicol (10), erythromycin (50), gentamicin (20), kanamycin (30), rifampicin (20) and tetracycline (10) and to the heavy metals cobalt chloride (0.5 mM) and potassium chromate (0.25 mM). A cluster analysis with 81 morphological and physiological parameters placed the strains from undisturbed soils in the central part of the dendrogram, even when isolated from distant areas, indicating that they had a common background. The relatedness decreased with the use of the soils for agriculture. Most of the strains isolated from cropped soils under conventional tillage were characterized by a high tolerance to stressful conditions and the ability to grow with several C sources, contrary to most of the strains isolated from soils under no-tillage management system. The strains differed from Sinorhizobium fredii in several characteristics and the protein and lipopolysaccharide profiles showed that each strain was unique. Therefore, although soyabean is an exotic plant in Brazil, several indigenous rhizobial strains may also establish an effective symbiosis with this legume. MenosA survey of soyabean (Glycine max) rhizobia was carried out with six Asian and one modern soyabean genotypes as trap hosts. Soyabean seedlings were inoculated with soils from 22 Brazilian field sites, including undisturbed areas or areas traditionally cropped with this legume. A total of 30 fast growing strains, able to establish an effective symbiosis with both types of genotypes, were isolated from 12 of the 22 soils, representing 17% of the population in cropped areas and 24% in undisturbed soils. The bacterial mean generation time varied from 85 to 225 minutes and after 4 days of growth in YM medium the final pH ranged from 3.7 to 6.9. Although isolated from acid soils, only 37% of the strains were able to growing in TY or YM media at pH 4.0, while 60% were alkaline tolerant (pH 9.5). Most strains produced abundant extracellular polysaccharides (73%), were tolerant to 0.5 M NaCl (60%) and a temperature of 40°C (77%), grew in LB medium (67%) and synthesized melanin (53%). The strains differed in the use of C compounds supplied as sole C sources. The majority of the strains showed an intrinsic resistance to the antibiotics (µg ml-1) chloramphenicol (10), erythromycin (50), gentamicin (20), kanamycin (30), rifampicin (20) and tetracycline (10) and to the heavy metals cobalt chloride (0.5 mM) and potassium chromate (0.25 mM). A cluster analysis with 81 morphological and physiological parameters placed the strains from undisturbed soils in the central part of the dendrogram, ... Mostrar Tudo |
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Thesagro: |
Fixação de Nitrogênio; Soja. |
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Thesaurus Nal: |
Nitrogen fixation; Soybeans. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02933naa a2200217 a 4500
001 1462873
005 2024-11-08
008 2001 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/S0038-0717(01)00040-2$2DOI
100 1 $aHUNGRIA, M.
245 $aPreliminary characterization of fast growing rhizobial strains isolated from soyabean nodules in Brazil.$h[electronic resource]
260 $c2001
520 $aA survey of soyabean (Glycine max) rhizobia was carried out with six Asian and one modern soyabean genotypes as trap hosts. Soyabean seedlings were inoculated with soils from 22 Brazilian field sites, including undisturbed areas or areas traditionally cropped with this legume. A total of 30 fast growing strains, able to establish an effective symbiosis with both types of genotypes, were isolated from 12 of the 22 soils, representing 17% of the population in cropped areas and 24% in undisturbed soils. The bacterial mean generation time varied from 85 to 225 minutes and after 4 days of growth in YM medium the final pH ranged from 3.7 to 6.9. Although isolated from acid soils, only 37% of the strains were able to growing in TY or YM media at pH 4.0, while 60% were alkaline tolerant (pH 9.5). Most strains produced abundant extracellular polysaccharides (73%), were tolerant to 0.5 M NaCl (60%) and a temperature of 40°C (77%), grew in LB medium (67%) and synthesized melanin (53%). The strains differed in the use of C compounds supplied as sole C sources. The majority of the strains showed an intrinsic resistance to the antibiotics (µg ml-1) chloramphenicol (10), erythromycin (50), gentamicin (20), kanamycin (30), rifampicin (20) and tetracycline (10) and to the heavy metals cobalt chloride (0.5 mM) and potassium chromate (0.25 mM). A cluster analysis with 81 morphological and physiological parameters placed the strains from undisturbed soils in the central part of the dendrogram, even when isolated from distant areas, indicating that they had a common background. The relatedness decreased with the use of the soils for agriculture. Most of the strains isolated from cropped soils under conventional tillage were characterized by a high tolerance to stressful conditions and the ability to grow with several C sources, contrary to most of the strains isolated from soils under no-tillage management system. The strains differed from Sinorhizobium fredii in several characteristics and the protein and lipopolysaccharide profiles showed that each strain was unique. Therefore, although soyabean is an exotic plant in Brazil, several indigenous rhizobial strains may also establish an effective symbiosis with this legume.
650 $aNitrogen fixation
650 $aSoybeans
650 $aFixação de Nitrogênio
650 $aSoja
700 1 $aCHUEIRE, L. M. de O.
700 1 $aCOCA, R. G.
700 1 $aMEGIAS, M.
773 $tSoil Biology & Biochemistry$gv. 33, n. 10, p. 1349-1361, 2001.
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Registro original: |
Embrapa Soja (CNPSO) |
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| Registros recuperados : 12 | |
| 3. |  | LIMA NETO, F. P.; SOUZA, E. M. de C.; RIBEIRO, I. C. N. dos S. Caracterização morfológica das inflorescências e da precocidade em acessos de mangueira do Banco Ativo de Germoplasma da Embrapa Semiárido. RG News, v. 5, n. 3, p. 47, 2019. Edição do 4º Simpósio Rede de Recursos Genéticos Vegetais do Nordeste, Areia, PB, Nov. 2019.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 4. | | ROCHA, E. M. de C; LIMA NETO, F. P.; RIBEIRO, I. C. N. dos S. Caracterização morfológica do porte, do hábito de crescimento dos ramos princípais e das folhas de acessos de mangueira do Banco Ativo de Germoplasma da Embrapa Semiárido. RG News, v. 5, n. 3, p. 46, 2019. Edição do 4º Simpósio Rede de Recursos Genéticos Vegetais do Nordeste, Areia, PB, Nov. 2019.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 5. | | RIBEIRO, I. C. N. dos S.; SANTOS, C. A. F.; LIMA NETO, F. P. Characterization of Mangifera indica accessions based on Brazilian adapted UPOV descriptors. In: INTERNATIONAL MANGO SYMPOSIUM, 10., 2013, Bávaro, Punta Cana, Dominican Republic. Mango: opportunities and challenges in the 21 century. Punta Cana, Dominican Republic: CEDAF: CONIAF, 2013. p. 35.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 7. | | RIBEIRO, I. C. N. dos S.; SANTOS, C. A. F.; LIMA NETO, F. P. Phenotypic divergency among Mangifera indica based on agromorphological descriptors. In: INTERNATIONAL MANGO SYMPOSIUM, 10., 2013, Bávaro, Punta Cana, Dominican Republic. Mango: opportunities and challenges in the 21 century. Punta Cana, Dominican Republic: CEDAF: CONIAF, 2013. p. 36.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 9. | | SILVA, J. C. L.; LIRA, I. C. de S. A.; NERY, L. P. C.; RIBEIRO, I. C. N. dos S.; DANTAS, B. F.; ANTONIO, R. P. Avaliação de acessos do gênero Cenchrus para a produção de sementes. In: JORNADA DE INICIAÇÃO CIENTIFICA DA EMBRAPA SEMIÁRIDO, 15., 2020, Petrolina. Anais... Petrolina: Embrapa Semiárido, 2020. p. 61-62. (Embrapa Semiárido. Documentos, 299).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 11. | | ALVES, S. T. L.; ALBUQUERQUE, H. Y. G. de; SANTANA, F. A. de; RIBEIRO, I. C. N. dos S.; LIMA NETO, F. P. Caracterização do porte, do hábito de crescimento e da precocidade de acessos de mangueira do Banco Ativo de Germoplasma da Embrapa Semiárido. In: SIMPÓSIO DA REDE DE RECURSOS GENÉTICOS VEGETAIS DO NORDESTE, 2., 2015, Fortaleza. Valorização e uso da plantas Caatinga. Fortaleza: Embrapa Agroindústria Tropical: Universidade Federal do Ceará, 2015.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 12. | | ALVES, E. O. dos S.; LIMA NETO, F. P.; SANTOS, C. A. F.; RIBEIRO, I. C. N. dos S.; MELO, C. A. F. de; HOLANDA, I. S. A.; SOUZA, A. P. de; CORRÊA, R. X. Genetic diversity of mango accessions (Mangifera indica) using new microsatellite markers and morphological descriptors. Australian Journal of Crop Science, v. 10, n. 9, p. 1281-1287, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Semiárido. |
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| Registros recuperados : 12 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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