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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
22/06/2020 |
Data da última atualização: |
01/10/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SENA, P. T. S.; NASCIMENTO, T. R. do; LINO, J. de O. S.; OLIVEIRA, G. S.; FERREIRA NETO, R. A.; FREITAS, A. D. S. de; FERNANDES JUNIOR, P. I.; MARTINS, L. M. V. |
Afiliação: |
Pâmella Thalita Souza Sena; Tailane Ribeiro do Nascimento; Jaynne de Oliveira Siqueira Lino; Gilmar Silva Oliveira; Reginaldo Alves Ferreira Neto; Ana Dolores Santiago de Freitas; PAULO IVAN FERNANDES JUNIOR, CPATSA; Lindete Míria Vieira Martins. |
Título: |
Molecular, physiological, and symbiotic characterization of cowpea rhizobia from soils under different agricultural systems in the Semiarid region of Brazil. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Journal of Soil Science and Plant Nutrition, v, 20, n. 3, p. 1178-1192, 2020. |
DOI: |
https://doi.org/10.1007/s42729-020-00203-3 |
Idioma: |
Inglês |
Conteúdo: |
The objectives of this study were to characterize the genetic diversity and evaluate the ability to tolerate stress as well as to assess the symbiotic efficiency of bacteria from cowpea nodules in agricultural soils with different uses in the semiarid region of Bahia state (Brazil). Soil samples were collected from six crop lands and one from the pristine Caatinga biome. After a trap-host experiment, the bacteria were isolated and culturally characterized. Isolates with typical characteristics of Bradyrhizobium were subjected to the nodC symbiotic gene amplification and those positive were evaluated by 16S-23S IGS-RFLP. Twenty-seven isolates belonging to different genetic clusters were selected for 16S-23S IGS sequencing. In additions, the selected bacteria were characterized biochemically and symbiotically. Among 420 characterized isolates, approximately 60% (251 isolates) displayed typical Bradyrhizobium cultural features. A total of 161, out of 251 isolates, showed positive amplification of the nodC gene fragment. The IGS-RFLP profiles analysis generated 33 groups and 27 were selected for further analysis. The fertility of the soils influenced the distribution of the isolates in the IGS-RFLP clusters. The bacteria were assigned to two genera, Bradyrhizobium and Microvirga, with 26 and 1 representative bacteria, respectively. Some isolates were able to tolerate NaCl as well as acidic and alkaline pH. In addition, isolates showed the abilities to produce biofilm under stress and to produce indole compounds, as well as efficient nodulation and nitrogen fixation. The isolates displayed great genetic, biochemical, and symbiotic variability with promising biotechnological potential. MenosThe objectives of this study were to characterize the genetic diversity and evaluate the ability to tolerate stress as well as to assess the symbiotic efficiency of bacteria from cowpea nodules in agricultural soils with different uses in the semiarid region of Bahia state (Brazil). Soil samples were collected from six crop lands and one from the pristine Caatinga biome. After a trap-host experiment, the bacteria were isolated and culturally characterized. Isolates with typical characteristics of Bradyrhizobium were subjected to the nodC symbiotic gene amplification and those positive were evaluated by 16S-23S IGS-RFLP. Twenty-seven isolates belonging to different genetic clusters were selected for 16S-23S IGS sequencing. In additions, the selected bacteria were characterized biochemically and symbiotically. Among 420 characterized isolates, approximately 60% (251 isolates) displayed typical Bradyrhizobium cultural features. A total of 161, out of 251 isolates, showed positive amplification of the nodC gene fragment. The IGS-RFLP profiles analysis generated 33 groups and 27 were selected for further analysis. The fertility of the soils influenced the distribution of the isolates in the IGS-RFLP clusters. The bacteria were assigned to two genera, Bradyrhizobium and Microvirga, with 26 and 1 representative bacteria, respectively. Some isolates were able to tolerate NaCl as well as acidic and alkaline pH. In addition, isolates showed the abilities to produce biofilm under stres... Mostrar Tudo |
Palavras-Chave: |
Diversidade genética; Fixação biológica de nitrogênio; Microvirga; Semiárido. |
Thesagro: |
Feijão; Inoculante. |
Thesaurus Nal: |
Bradyrhizobium. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02731naa a2200301 a 4500 001 2123416 005 2021-10-01 008 2020 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1007/s42729-020-00203-3$2DOI 100 1 $aSENA, P. T. S. 245 $aMolecular, physiological, and symbiotic characterization of cowpea rhizobia from soils under different agricultural systems in the Semiarid region of Brazil.$h[electronic resource] 260 $c2020 520 $aThe objectives of this study were to characterize the genetic diversity and evaluate the ability to tolerate stress as well as to assess the symbiotic efficiency of bacteria from cowpea nodules in agricultural soils with different uses in the semiarid region of Bahia state (Brazil). Soil samples were collected from six crop lands and one from the pristine Caatinga biome. After a trap-host experiment, the bacteria were isolated and culturally characterized. Isolates with typical characteristics of Bradyrhizobium were subjected to the nodC symbiotic gene amplification and those positive were evaluated by 16S-23S IGS-RFLP. Twenty-seven isolates belonging to different genetic clusters were selected for 16S-23S IGS sequencing. In additions, the selected bacteria were characterized biochemically and symbiotically. Among 420 characterized isolates, approximately 60% (251 isolates) displayed typical Bradyrhizobium cultural features. A total of 161, out of 251 isolates, showed positive amplification of the nodC gene fragment. The IGS-RFLP profiles analysis generated 33 groups and 27 were selected for further analysis. The fertility of the soils influenced the distribution of the isolates in the IGS-RFLP clusters. The bacteria were assigned to two genera, Bradyrhizobium and Microvirga, with 26 and 1 representative bacteria, respectively. Some isolates were able to tolerate NaCl as well as acidic and alkaline pH. In addition, isolates showed the abilities to produce biofilm under stress and to produce indole compounds, as well as efficient nodulation and nitrogen fixation. The isolates displayed great genetic, biochemical, and symbiotic variability with promising biotechnological potential. 650 $aBradyrhizobium 650 $aFeijão 650 $aInoculante 653 $aDiversidade genética 653 $aFixação biológica de nitrogênio 653 $aMicrovirga 653 $aSemiárido 700 1 $aNASCIMENTO, T. R. do 700 1 $aLINO, J. de O. S. 700 1 $aOLIVEIRA, G. S. 700 1 $aFERREIRA NETO, R. A. 700 1 $aFREITAS, A. D. S. de 700 1 $aFERNANDES JUNIOR, P. I. 700 1 $aMARTINS, L. M. V. 773 $tJournal of Soil Science and Plant Nutrition, v, 20$gn. 3, p. 1178-1192, 2020.
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Registros recuperados : 3 | |
1. | | FERREIRA, T. S. D.; LINO, J. de O. S.; FEITOSA, M. de S.; RIOS, A. de O.; MARTINS, L. M. V.; MARINHO, L. B.; FERNANDES JUNIOR, P. I. Caracterização cultural de bactérias isoladas de nódulos de guandu cultivado sob dois regimes hídricos. In: JORNADA DE INTEGRAÇÃO DA PÓS-GRADUAÇÃO DA EMBRAPA SEMIÁRIDO, 1., 2016, Petrolina. Anais... Petrolina: Embrapa Semiárido, 2016. p. 71-72. (Embrapa Semiárido. Documentos, 274).Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Semiárido. |
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2. | | SOARES FILHO, A. de A.; LINO, J. de O. S.; CUNHA, J. G. da; SANTANA, E. A.; OLIVEIRA, V. R. de; FREITAS, S. T. de. Uso de hexanal para aumentar a vida pós-colheita do umbu. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 26., 2019, Juazeiro, BA/Petrolina, PE. Fruticultura de precisão: desafios e oportunidades - anais. Petrolina: Embrapa Semiárido: UNIVASF: SBF, 2019. p. 2777-2780.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Semiárido. |
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3. | | SENA, P. T. S.; NASCIMENTO, T. R. do; LINO, J. de O. S.; OLIVEIRA, G. S.; FERREIRA NETO, R. A.; FREITAS, A. D. S. de; FERNANDES JUNIOR, P. I.; MARTINS, L. M. V. Molecular, physiological, and symbiotic characterization of cowpea rhizobia from soils under different agricultural systems in the Semiarid region of Brazil. Journal of Soil Science and Plant Nutrition, v, 20, n. 3, p. 1178-1192, 2020.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
Biblioteca(s): Embrapa Semiárido. |
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Registros recuperados : 3 | |
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