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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
18/12/2023 |
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Data da última atualização: |
11/10/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CORREA, S. S.; PACHECO, R. S.; VIANA, G. C.; VIDAL, M. S.; XAVIER, G. R.; ARAUJO, J. L. S. de. |
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Afiliação: |
SULAMITA SANTOS CORREA, UFRJ; RAFAEL SANCHES PACHECO, BOLSISTA EMBRAPA AGROBIOLOGIA; GUILHERME CALDIERARO VIANA, BOLSISTA EMBRAPA AGROBIOLOGIA; MARCIA SOARES VIDAL, CNPAB; GUSTAVO RIBEIRO XAVIER, CNPAB; JEAN LUIZ SIMOES DE ARAUJO, CNPAB. |
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Título: |
Ability of nitrogen‐fixing bacteria to alleviate drought stress in cowpea varies depending on the origin of the inoculated strain. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Plant and Soil, v. 498, n. 1-2, p. 391 - 408, May 2024. |
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ISSN: |
1573-5036 |
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DOI: |
https://doi.org/10.1007/s11104-023-06443-3 |
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Idioma: |
Inglês |
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Conteúdo: |
Drought is one of the main causes of global crop decline. Plant growth-promoting rhizobacteria enhance plant tolerance to adverse environmental conditions. This study aimed to determine whether the rhizobacteria Microvirga vignae (BR 3296 and BR 3299) and Bradyrhizobium sp. (BR 3301) can maintain cowpea growth under drought stress. We analyzed biomass, nodulation, nitrogen accumulation, and physiological traits of the inoculated plants. Rhizobacterial strains were assessed for exopolysaccharide (EPS) and indole acetic acid (IAA) production, growth, and biofilm formation in a water-stress medium induced by polyethylene glycol (PEG)-6000. The expression of genes associated with abscisic acid (ABA) biosynthesis in root nodules was also investigated. Our results suggest that M. vignae strains, isolated from a semi-arid region, help plants withstand water-stress, whereas the strain of Bradyrhizobium sp. isolated from a wet region did not effectively alleviate drought stress. However, Bradyrhizobium sp. conferred growth and nitrogen accumulation to cowpea superior to M. vignae and like plants supplied with nitrogen fertilizer. |
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Palavras-Chave: |
Rhizobacteria. |
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Thesagro: |
Vigna Unguiculata. |
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Thesaurus Nal: |
Bradyrhizobium; Drought. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 01936naa a2200253 a 4500
001 2159854
005 2024-10-11
008 2024 bl uuuu u00u1 u #d
022 $a1573-5036
024 7 $ahttps://doi.org/10.1007/s11104-023-06443-3$2DOI
100 1 $aCORREA, S. S.
245 $aAbility of nitrogen‐fixing bacteria to alleviate drought stress in cowpea varies depending on the origin of the inoculated strain.$h[electronic resource]
260 $c2024
520 $aDrought is one of the main causes of global crop decline. Plant growth-promoting rhizobacteria enhance plant tolerance to adverse environmental conditions. This study aimed to determine whether the rhizobacteria Microvirga vignae (BR 3296 and BR 3299) and Bradyrhizobium sp. (BR 3301) can maintain cowpea growth under drought stress. We analyzed biomass, nodulation, nitrogen accumulation, and physiological traits of the inoculated plants. Rhizobacterial strains were assessed for exopolysaccharide (EPS) and indole acetic acid (IAA) production, growth, and biofilm formation in a water-stress medium induced by polyethylene glycol (PEG)-6000. The expression of genes associated with abscisic acid (ABA) biosynthesis in root nodules was also investigated. Our results suggest that M. vignae strains, isolated from a semi-arid region, help plants withstand water-stress, whereas the strain of Bradyrhizobium sp. isolated from a wet region did not effectively alleviate drought stress. However, Bradyrhizobium sp. conferred growth and nitrogen accumulation to cowpea superior to M. vignae and like plants supplied with nitrogen fertilizer.
650 $aBradyrhizobium
650 $aDrought
650 $aVigna Unguiculata
653 $aRhizobacteria
700 1 $aPACHECO, R. S.
700 1 $aVIANA, G. C.
700 1 $aVIDAL, M. S.
700 1 $aXAVIER, G. R.
700 1 $aARAUJO, J. L. S. de
773 $tPlant and Soil$gv. 498, n. 1-2, p. 391 - 408, May 2024.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
19/09/2017 |
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Data da última atualização: |
29/12/2017 |
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Autoria: |
SANTOS, F. M.; AMENDOEIRA, M. R. R.; CARRIJO, K. F.; SANTOS, J. P. A. F.; ARRUDA, I. F.; SUDRÉ, A. P.; BRENER, B.; MILLAR, P. R. |
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Afiliação: |
Fabielle Marques Santos, Laboratório de Parasitologia/Departamento de Microbiologia e Parasitologia - MIP/Universidade Federal Fluminense - UFF; Maria Regina R. Amendoeira, Laboratório de Toxoplasmose e outras Protozoonoses - LabTOXO/Instituto Oswaldo Cruz - Fiocruz; Kênia F. Carrijo, Faculdade de Medicina Veterinária/Universidade Federal de Uberlândia - UFU; João Paulo A. F. Santos, Veterinário autônomo graduado pela UFU; Igor F. Arruda, Laboratório de Parasitologia/Departamento de Microbiologia e Parasitologia - MIP/Universidade Federal Fluminense - UFF; Adriana P. Sudré, Laboratório de Parasitologia/Departamento de Microbiologia e Parasitologia - MIP/Universidade Federal Fluminense - UFF; Beatriz Brener, Laboratório de Parasitologia/Departamento de Microbiologia e Parasitologia - MIP/Universidade Federal Fluminense - UFF; Patricia R. Millar, Laboratório de Parasitologia/Departamento de Microbiologia e Parasitologia - MIP/Universidade Federal Fluminense - UFF. |
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Título: |
Occurrence of Toxoplasma gondii and risk factors for infection in pigs raised and slaughtered in the Triângulo Mineiro region, Minas Gerais, Brazil. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 37, n. 6, p. 570-576, jun. 2017. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Ocorrência e fatores de risco da infecção por Toxoplasma gondii em suínos criados e abatidos na região do Triângulo Mineiro, Minas Gerais, Brasil. |
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Conteúdo: |
The Triângulo Mineiro region from Minas Gerais state, is an important meat-exporting region of Brazil and data about Toxoplasma gondii infection in pigs raised and slaughtered in this area are scarce. Therefore, the aim of this study was to evaluate the occurrence of T. gondii in swine and establish the risk factors associated with the infection. Samples were collected from 600 pigs raised under intensive system in farms located at three different counties (Carmo do Paranaíba, Patrocínio and Perdizes). The samples were submitted to indirect hemagglutination antibody test with dilution of 1:32 and to indirect immunofluorescence antibody test with a cutoff of 1:64. The occurrence of positive pig was 3.3% (n=20) and 51.8% (n=311) respectively. A significant difference was observed between toxoplasmatic infection and factors such as lineage, animal origin, size of the farm, collective raising with others species, presence of rodents and type of water offered (p?0.05). There was no difference between gender and the farm goals. The results demonstrated an occurrence of anti-T. gondii antibodies higher than expected for intensive pig raising system on the studied area, which could indicate a possible sanitary management problem on the studied proprieties. Improvements on the raising techniques are necessary to reduce T. gondii infection sources. |
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Palavras-Chave: |
IFAT; IHA; Sorologia. |
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Thesagro: |
Suíno; Toxoplasma Gondii; Toxoplasmose. |
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Thesaurus NAL: |
Serology; Swine; Toxoplasmosis. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/163984/1/occurrence-of-Toxoplasa-gondii.pdf
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Marc: |
LEADER 02487naa a2200325 a 4500
001 2075908
005 2017-12-29
008 2017 bl uuuu u00u1 u #d
100 1 $aSANTOS, F. M.
245 $aOccurrence of Toxoplasma gondii and risk factors for infection in pigs raised and slaughtered in the Triângulo Mineiro region, Minas Gerais, Brazil.$h[electronic resource]
260 $c2017
500 $aTítulo em português: Ocorrência e fatores de risco da infecção por Toxoplasma gondii em suínos criados e abatidos na região do Triângulo Mineiro, Minas Gerais, Brasil.
520 $aThe Triângulo Mineiro region from Minas Gerais state, is an important meat-exporting region of Brazil and data about Toxoplasma gondii infection in pigs raised and slaughtered in this area are scarce. Therefore, the aim of this study was to evaluate the occurrence of T. gondii in swine and establish the risk factors associated with the infection. Samples were collected from 600 pigs raised under intensive system in farms located at three different counties (Carmo do Paranaíba, Patrocínio and Perdizes). The samples were submitted to indirect hemagglutination antibody test with dilution of 1:32 and to indirect immunofluorescence antibody test with a cutoff of 1:64. The occurrence of positive pig was 3.3% (n=20) and 51.8% (n=311) respectively. A significant difference was observed between toxoplasmatic infection and factors such as lineage, animal origin, size of the farm, collective raising with others species, presence of rodents and type of water offered (p?0.05). There was no difference between gender and the farm goals. The results demonstrated an occurrence of anti-T. gondii antibodies higher than expected for intensive pig raising system on the studied area, which could indicate a possible sanitary management problem on the studied proprieties. Improvements on the raising techniques are necessary to reduce T. gondii infection sources.
650 $aSerology
650 $aSwine
650 $aToxoplasmosis
650 $aSuíno
650 $aToxoplasma Gondii
650 $aToxoplasmose
653 $aIFAT
653 $aIHA
653 $aSorologia
700 1 $aAMENDOEIRA, M. R. R.
700 1 $aCARRIJO, K. F.
700 1 $aSANTOS, J. P. A. F.
700 1 $aARRUDA, I. F.
700 1 $aSUDRÉ, A. P.
700 1 $aBRENER, B.
700 1 $aMILLAR, P. R.
773 $tPesquisa Veterinária Brasileira, Rio de Janeiro$gv. 37, n. 6, p. 570-576, jun. 2017.
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Embrapa Unidades Centrais (AI-SEDE) |
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