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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
25/04/2007 |
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Data da última atualização: |
03/08/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BATISTA, J. S. S.; HUNGRIA, M.; BARCELLOS, F. G.; FERREIRA, M. C.; MENDES, I. C. |
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Afiliação: |
JESIANE STEFÂNIA SILVA BATISTA, UEL; MARIANGELA HUNGRIA DA CUNHA, CNPSO; FERNANDO GOMES BARCELLOS; MAGDA CRISTIANI FERREIRA, UEL; IÊDA CARVALHO MENDES. |
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Título: |
Variability in Bradyrhizobium japonicum and B. elkanii seven years after introduction of both the exotic microsymbiont and the soybean host in a cerrados soil. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Microbial Ecology, New York, v. 53, n. 2, p. 270-284, Feb. 2007. |
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ISSN: |
0095-3628 |
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DOI: |
10.1007/s00248-006-9149-2 |
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Idioma: |
Inglês |
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Conteúdo: |
The plasticity of rhizobial genomes is far greater than previously thought, with complex genomic recombination events that may be accelerated by the often stressful environmental conditions of the tropics. This study aimed at evaluating changes in soybean rhizobia due to adaptation to inhospitable environmental conditions (high temperatures, drought, and acid soils) in the Brazilian Cerrados. Both the host plant and combinations of four strains of soybean Bradyrhizobium were introduced in an uncropped soil devoid of rhizobia capable of nodulating soybean. After the third year, seeds were not reinoculated. Two hundred and sixty-three isolates were obtained from nodules of field-grown soybean after the seventh year, and their morphological, physiological, serological, and symbiotic properties determined, followed by genetic analysis of conserved and symbiotic genes. B. japonicum strain CPAC 15 (same serogroup as USDA 123) was characterized as having high saprophytic capacity and competitiveness and by the seventh year represented up to 70% of the cultivable population, in contrast to the poor survival and competitiveness of B. japonicum strain CPAC 7 (same serogroup as CB 1809). In general, adapted strains had increased mucoidy, and up to 43% of the isolates showed no serological reaction. High variability, presumably resulting from the adaptation to the harsh environmental conditions, was verified in rep-PCR (polymerase chain reaction) profiles, being lower in strain CPAC 15, intermediate in B. elkanii, and higher in CPAC 7. Restriction fragment length polymorphism (RFLP)-PCR types of the 16S rDNA corresponded to the following: one type for B. elkanii species, two for B. japonicum, associated to CPAC 15 and CPAC 7, and unknown combinations of profiles. However, when nodC sequences and RFLP-PCR of the nifH region data were considered, only two clusters were observed having full congruence with B. japonicum and B. elkanii species. Combining the results, variability was such that even within a genetically more stable group (such as that of CPAC 15), only 6.4% of the isolates showed high similarity to the inoculant strain, whereas none was similar to CPAC 7. The genetic variability in our study seems to result from a variety and combination of events including strain dispersion, genomic recombination, and horizontal gene transfer. Furthermore, the genetic variability appears to be mainly associated with adaptation, saprophytic capacity, and competitiveness, and not with symbiotic effectiveness, as the similarity of symbiotic genes was higher than that of conserved regions of the DNA. MenosThe plasticity of rhizobial genomes is far greater than previously thought, with complex genomic recombination events that may be accelerated by the often stressful environmental conditions of the tropics. This study aimed at evaluating changes in soybean rhizobia due to adaptation to inhospitable environmental conditions (high temperatures, drought, and acid soils) in the Brazilian Cerrados. Both the host plant and combinations of four strains of soybean Bradyrhizobium were introduced in an uncropped soil devoid of rhizobia capable of nodulating soybean. After the third year, seeds were not reinoculated. Two hundred and sixty-three isolates were obtained from nodules of field-grown soybean after the seventh year, and their morphological, physiological, serological, and symbiotic properties determined, followed by genetic analysis of conserved and symbiotic genes. B. japonicum strain CPAC 15 (same serogroup as USDA 123) was characterized as having high saprophytic capacity and competitiveness and by the seventh year represented up to 70% of the cultivable population, in contrast to the poor survival and competitiveness of B. japonicum strain CPAC 7 (same serogroup as CB 1809). In general, adapted strains had increased mucoidy, and up to 43% of the isolates showed no serological reaction. High variability, presumably resulting from the adaptation to the harsh environmental conditions, was verified in rep-PCR (polymerase chain reaction) profiles, being lower in strain CPAC 15,... Mostrar Tudo |
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Thesagro: |
Rhizobium; Soja. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03319naa a2200217 a 4500
001 1469973
005 2017-08-03
008 2007 bl uuuu u00u1 u #d
022 $a0095-3628
024 7 $a10.1007/s00248-006-9149-2$2DOI
100 1 $aBATISTA, J. S. S.
245 $aVariability in Bradyrhizobium japonicum and B. elkanii seven years after introduction of both the exotic microsymbiont and the soybean host in a cerrados soil.
260 $c2007
520 $aThe plasticity of rhizobial genomes is far greater than previously thought, with complex genomic recombination events that may be accelerated by the often stressful environmental conditions of the tropics. This study aimed at evaluating changes in soybean rhizobia due to adaptation to inhospitable environmental conditions (high temperatures, drought, and acid soils) in the Brazilian Cerrados. Both the host plant and combinations of four strains of soybean Bradyrhizobium were introduced in an uncropped soil devoid of rhizobia capable of nodulating soybean. After the third year, seeds were not reinoculated. Two hundred and sixty-three isolates were obtained from nodules of field-grown soybean after the seventh year, and their morphological, physiological, serological, and symbiotic properties determined, followed by genetic analysis of conserved and symbiotic genes. B. japonicum strain CPAC 15 (same serogroup as USDA 123) was characterized as having high saprophytic capacity and competitiveness and by the seventh year represented up to 70% of the cultivable population, in contrast to the poor survival and competitiveness of B. japonicum strain CPAC 7 (same serogroup as CB 1809). In general, adapted strains had increased mucoidy, and up to 43% of the isolates showed no serological reaction. High variability, presumably resulting from the adaptation to the harsh environmental conditions, was verified in rep-PCR (polymerase chain reaction) profiles, being lower in strain CPAC 15, intermediate in B. elkanii, and higher in CPAC 7. Restriction fragment length polymorphism (RFLP)-PCR types of the 16S rDNA corresponded to the following: one type for B. elkanii species, two for B. japonicum, associated to CPAC 15 and CPAC 7, and unknown combinations of profiles. However, when nodC sequences and RFLP-PCR of the nifH region data were considered, only two clusters were observed having full congruence with B. japonicum and B. elkanii species. Combining the results, variability was such that even within a genetically more stable group (such as that of CPAC 15), only 6.4% of the isolates showed high similarity to the inoculant strain, whereas none was similar to CPAC 7. The genetic variability in our study seems to result from a variety and combination of events including strain dispersion, genomic recombination, and horizontal gene transfer. Furthermore, the genetic variability appears to be mainly associated with adaptation, saprophytic capacity, and competitiveness, and not with symbiotic effectiveness, as the similarity of symbiotic genes was higher than that of conserved regions of the DNA.
650 $aRhizobium
650 $aSoja
700 1 $aHUNGRIA, M.
700 1 $aBARCELLOS, F. G.
700 1 $aFERREIRA, M. C.
700 1 $aMENDES, I. C.
773 $tMicrobial Ecology, New York$gv. 53, n. 2, p. 270-284, Feb. 2007.
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Registro original: |
Embrapa Soja (CNPSO) |
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| Registros recuperados : 74 | |
| 61. |  | SOUSA, S. H. B. de; SOUZA, E. K. A. de; FERREIRA, M. C. R.; BRASIL, L. do S. N. dos; MATTIETTO, R. de A. Caracterização físico-química e estudo da estabilidade da polpa dos Frutos de jacaiacá (Antrocaryon amazonicum (Ducke) B. L. Burtt A. W. Hill). In: CONGRESSO BRASILEIRO DE CIÊNCIA E TECNOLOGIA DE ALIMENTOS, 26., 2018, Belém, PA. O Uso consciente da biodiversidade: perspectivas para o avanço da ciência e tecnologia de alimentos: anais. Belém, PA: SBCTA, 2018. 8 p. CBCTA.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 62. | | CHUEIRE, L. M. de O.; BANGEL, E.; FERREIRA, M. C.; GRANGE, L.; CAMPO, R. J.; MOSTASSO, F. L.; ANDRADE, D. de S.; PEDROSA, F. O.; HUNGRIA, M. Classificacao taxonomica, baseada na caracterizacao molecular, das estirpes de rizobio recomendadas para as culturas da soja e do feijoeiro. Londrina: Embrapa Soja, 2000. 32 p. (Embrapa Soja. Boletim de Pesquisa, 3).| Tipo: Boletim de Pesquisa e Desenvolvimento |
| Biblioteca(s): Embrapa Soja. |
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| 63. | | HUNGRIA, M.; CHUEIRE, L. M. de O.; CAMPO, R. J.; FERREIRA, M. C.; BANGEL, E.; MOSTASSO, F. L.; PEDROSA, F. de O.; SOUSA, L. J.; CONCEIÇÃO, R. B. Caracterização genética, fisiológica e bioquímica de estirpes de Bradyrhizobium para a cultura da soja de solos da região sul e do cerrado e com maior eficiência de fixação do nitrogênio e capacidade competitiva (04.1994.322-02). In: EMBRAPA SOJA. Resultados de pesquisa da Embrapa Soja, 1999. Londrina, 2000. p. 220-225. (Embrapa Soja. Documentos, 142).| Biblioteca(s): Embrapa Soja. |
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| 64. | | BANGEL, E. V.; FERREIRA, M. C.; CHUEIRE, L. M.; MEYER, J. V.; CAMARGO, F. A. de O.; SELBACH, P. A.; HUNGRIA, M. Caracterizacao de estirpes de Bradyrhizobium spp. utilizadas na producao de inoculantes para a cultura da soja no Mercosul. In: REUNIAO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRICAO DE PLANTAS, 24.; REUNIAO BRASILEIRA SOBRE MICORRIZAS, 8.; SIMPOSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 6.; REUNIAO BRASILEIRA DE BIOLOGIA DO SOLO, 3., 2000, Santa Maria. Fertbio 2000: biodinamica do solo. Santa Maria: UFSM/Departamento de Solos, 2000. 1 CD-ROM. Sessao posteres.| Biblioteca(s): Embrapa Soja. |
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| 65. | | RAUPP, P. P.; FERREIRA, M. C.; ALVES, M.; CAMPOS-FILHO, E. M.; SARTORELLI, P. A. R. S.; CONSOLARO, H. N.; VIEIRA, D. L. M. Direct seeding reduces the costs of tree planting for forest and savanna restoration. Ecological Engineering, v. 148, article 105788, 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 66. | | HUNGRIA, M.; VARGAS M. A. T.; ANDRADE, D. de S.; CAMPO, R. J.; CHUEIRE, L. M. de O.; FERREIRA, M. C.; MENDES, I. C. Fixacao biologica do nitrogenio em leguminosas de graos. In: SIQUEIRA, J.O.; MOREIRA, F.M.S.; LOPES, A.S.; GUILHERME, L.R.G.; FAQUIN, V.; FURTINI NETO, A.E.; CARVALHO, J.G. ed. Inter-relacao fertilidade, biologia do solo e nutricao de plantas. Lavras: SBCS / UFLA, 1999. p.597-620. Soil fertility, soil biology and plants nutrition interrelationships.| Biblioteca(s): Embrapa Cerrados. |
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| 67. | | HUNGRIA, M.; VARGAS, M. A. T.; ANDRADE, D. de S.; CAMPO, R. J.; CHUEIRE, L. M. de O.; FERREIRA, M. C.; MENDES, I. C. Fixacao biologica do nitrogenio em leguminosas de graos. In: SIQUEIRA, J.O.; MOREIRA, F.M.S.; LOPES, A.S.; GUILHERME, L.R.G.; FAQUIN, V.; FURTINI NETO, A.E.; CARVALHO, J.G., ed. Inter-relacao fertilidade, biologia do solo e nutricao de plantas. Vicosa: SBCS / Lavras: UFLA/DCS, 1999. p.597-620.| Biblioteca(s): Embrapa Soja. |
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| 68. | | MACARRINGUE, L. S.; BOLFE, E. L.; DUVERGER, S. G.; SANO, E. E.; CALDAS, M. M.; FERREIRA, M. C.; ZULLO JUNIOR, J.; MATIAS, L. F. Land use and land cover classification in the northern region of Mozambique based on Landsat time series and machine learning. ISPRS International Journal of Geo-Information, v. 12, n. 8, 342, Aug. 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Agricultura Digital; Embrapa Cerrados. |
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| 69. | | FERREIRA, M. C.; CASTRO, T. H. dos R.; BARROS, P. C. de; VASCONCELOS, S. S.; RANGEL-VASCONCELOS, L. G. T.; CASTELLANI, D. C. Incremento corrente anual de espécies arbóreas em sistemas agroflorestais multiestrato em Tomé-Açu, Pará. In: CONGRESSO FLORESTAL LATINO-AMERICANO, 7., 2018, Vitória. [Anais]. [S.l.]: Even3, 2018.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 70. | | OKI, Y.; GOTO, B. T.; JOBIM, K.; ROSA, L. H.; FERREIRA, M. C.; COUTINHO, E. S.; XAVIER, J. H. de A.; CARVALHO, F.; MOREIRA, F. M. de S.; SOUZA, F. A. de; BERBARA, R. L. L.; FERNANDES, G. W. Arbuscular mycorrhiza and endophytic fungi in ruspestrian grasslands. In: FERNANDES, G. W. (Ed.). Ecology and conservation of mountaintop grasslands in Brazil. Switzerland: Springer International Publishing, 2016. cap. 8, p. 157-179.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 71. | | SILVA, C. H. L.; SOUZA, M. F.; BERTOLI, C. A.; VIANA, A. R. S.; FERREIRA, M. C.; MOURA, M. S.; LOPES, G. P.; OLIVEIRA, M. F.; LATINI, A. O. Improvement of ecosystem services in corn crops due to zero-tillage. In: SIMPÓSIO INTERNACIONAL DE ECOLOGIA E CONSERVAÇÃO, 1., 2014, Belo Horizonte. Anais... Belo Horizonte: UFMG, 2014. p. 89.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 72. | | HUNGRIA, M.; CAMPO, R. J.; ANDRADE, D. S.; MENDES, I. C.; CHUEIRE, L. M. O.; GRANGE, L.; FERREIRA, M. C.; ALBERTON, O.; KASCHUK, G.; LOUREIRO, M. F.; PEDROSA, F. O. Genetic diversity of symbiotic rhizobia in brazilian soils. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE BIOQUÍMICA E BIOLOGIA MOLECULAR, 31., 2002, Caxambu. Programa e resumos. São Paulo : SBBq, 2002. p.29.| Biblioteca(s): Embrapa Soja. |
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| 73. | | FERREIRA, M. C.; VIEIRA, M. de L. A.; ZANI, C. L.; ALVES, T. M. de A.; SALES JÚNIOR, P. A.; MURTA, S. M. F.; ROMANHA, A. J.; GIL, L. H. V. G.; CARVALHO, A. G. de O.; ZILLI, J. E.; VITAL, M. J. S.; ROSA, C. H.; ROSA, L. H. Molecular phylogeny, diversity, symbiosis and discover of bioactive compounds of endophytic fungi associated with the medicinal Amazonian plant Carapa guianensis Aublet. Biochemical Systematics and Ecology, v. 59, p. 36-44, 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 74. | | GERRITS, G. M.; WAENINK, R.; ARADOTTIR, A. L.; BUISSON, E.; DUTOIT, T.; FERREIRA, M. C.; FONTAINE, J. B.; JAUNATRE, R.; KARDOL, P.; LOEB, R.; RUIZ, S. M.; MALTZ, M.; PÄRTEL, M.; PECO, B.; PIQUERAY, J.; PILON, N. A. L.; SANTA-REGINA, I.; SCHMIDT, K. T.; SENGL, P.; DIGGELEN, R. van; VIEIRA, D. L. M.; BRACKEL, W. von; WARYSZAK, P.; WILLS, T. J.; MARRS, R. H.; WUBS, E. R. Synthesis on the effectiveness of soil translocation for plant community restoration. The Journal of Applied Ecology, v. 60, p. 714-724, 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| Registros recuperados : 74 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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