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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
09/11/2004 |
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Data da última atualização: |
28/03/2022 |
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Autoria: |
COUTINHO, H. L. da C.; OLIVEIRA, V. M. de; MOREIRA, F. M. S. |
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Afiliação: |
HEITOR LUIZ DA COSTA COUTINHO, CNPS; VALÉRIA M. DE OLIVEIRA, FUNDAÇÃO TROPICAL DE PESQUISAS E TECNOLOGIA ANDRÉ TOSSELLO; FÁTIMA M. S. MOREIRA, UFLA. |
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Título: |
Systematics of legume nodule nitrogen fixing bacteria: agronomic and ecological applications. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
In: PRIEST, F. G.; GOODFELLOW, M. (ed.). Applied microbial systematics. Drodrecht: Kluwer Academic Publishers, 2000. cap. 5, p. 107-134. |
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DOI: |
https://doi.org/10.1007/978-94-011-4020-1_5 |
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Idioma: |
Inglês |
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Conteúdo: |
Biological nitrogen fixation (BNF) is easily the most studied microbial process applied to agriculture. It consists of the reduction of atmospheric dinitrogen (N2), unavailable to higher plants, into ammonium (NH4+), an assimilable form of this nutrient. The BNF process is performed solely by microorganisms, the majority inhabiting the soil ecosystem, and is considered to be the most relevant component of the global nitrogen cycle (Ishizuka, 1992). The best known diazotrophs (dinitrogen fixing bacteria) are rhizobia, which are able to establish a symbiotic relationship with plants of the family Leguminosae, hereby called legumes. This symbiosis is characterized by a highly specific association between plant and bacteria. Particular varieties of legume species recognize specific strains of rhizobia, which are able to infect the legume roots. This process triggers the expression of certain plant genes, resulting in the development of nodules around the site of invasion. In the interior of the nodules the bacteria undergo morphological and physiological transformations, becoming nitrogen fixing bacteroides and supplying the plant with nutrient in exchange for carbon-rich material derived from plant photosynthesis. |
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Palavras-Chave: |
Biological Nitrogen Fixation; Environmental Microbiology; Fixação biológica de nitrogênio; Legume Species; Rhizobial Strain. |
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Thesaurus Nal: |
Nitrogen fixation. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02086naa a2200229 a 4500
001 1336985
005 2022-03-28
008 2000 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/978-94-011-4020-1_5$2DOI
100 1 $aCOUTINHO, H. L. da C.
245 $aSystematics of legume nodule nitrogen fixing bacteria$bagronomic and ecological applications.$h[electronic resource]
260 $c2000
520 $aBiological nitrogen fixation (BNF) is easily the most studied microbial process applied to agriculture. It consists of the reduction of atmospheric dinitrogen (N2), unavailable to higher plants, into ammonium (NH4+), an assimilable form of this nutrient. The BNF process is performed solely by microorganisms, the majority inhabiting the soil ecosystem, and is considered to be the most relevant component of the global nitrogen cycle (Ishizuka, 1992). The best known diazotrophs (dinitrogen fixing bacteria) are rhizobia, which are able to establish a symbiotic relationship with plants of the family Leguminosae, hereby called legumes. This symbiosis is characterized by a highly specific association between plant and bacteria. Particular varieties of legume species recognize specific strains of rhizobia, which are able to infect the legume roots. This process triggers the expression of certain plant genes, resulting in the development of nodules around the site of invasion. In the interior of the nodules the bacteria undergo morphological and physiological transformations, becoming nitrogen fixing bacteroides and supplying the plant with nutrient in exchange for carbon-rich material derived from plant photosynthesis.
650 $aNitrogen fixation
653 $aBiological Nitrogen Fixation
653 $aEnvironmental Microbiology
653 $aFixação biológica de nitrogênio
653 $aLegume Species
653 $aRhizobial Strain
700 1 $aOLIVEIRA, V. M. de
700 1 $aMOREIRA, F. M. S.
773 $tIn: PRIEST, F. G.; GOODFELLOW, M. (ed.). Applied microbial systematics. Drodrecht: Kluwer Academic Publishers, 2000. cap. 5, p. 107-134.
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Registro original: |
Embrapa Solos (CNPS) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Caprinos e Ovinos. |
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Data corrente: |
22/03/2023 |
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Data da última atualização: |
27/11/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SOUSA, A. L. M. de; PINHEIRO, R. R.; ARAUJO, J. F.; PEIXOTO, R. M.; AZEVEDO, D. A. A. de; LIMA, A. M. C.; CANUTO, K. M.; RIBEIRO, P. R. V.; SOUZA, A. S. de Q.; SOUZA, S. C. R.; AMORIM, S. L. de; AMARAL, G. P.; SOUZA, V. de; MORAIS, S. M. de; ANDRIOLI, A.; TEIXEIRA, M. F. da S. |
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Afiliação: |
ANA LIDIA MADEIRA DE SOUSA, Laboratory of Virology (LABOVIR), State University of Ceará (UECE); RAYMUNDO RIZALDO PINHEIRO, CNPC; JUSCILANIA FURTADO ARAUJO, University Center INTA (UNINTA), Tianguá, CE, Brazil; RENATO MESQUITA PEIXOTO, Vale do Salgado University Center (UNIVS) - Icó, CE, Brazil; Terra Nordeste College (FATENE) - Caucaia, CE, Brazil; DALVA ALANA ARAGAO DE AZEVEDO; ANA MILENA CESAR LIMA, National Council for Scientific and Technological Development (DCR-CNPq/FUNCAP), Embrapa; KIRLEY MARQUES CANUTO, CNPAT; PAULO RICELI VASCONCELOS RIBEIRO, CNPAT; ANA SHEILA DE QUEIROZ SOUZA; SAMARA CRISTINA ROCHA SOUZA; SARA LUCENA DE AMORIM; GABRIEL PAULA AMARAL, State University of Acaraú Valley - Sobral, CE, Brazil; VIVIANE DE SOUZA, CNPC; SELENE MAIA DE MORAIS, Laboratory of Chemistry and Natural Products (LQPN), Ceará State University, Fortaleza, CE, Brazil; ALICE ANDRIOLI PINHEIRO, CNPC; MARIA FATIMA DA SILVA TEIXEIRA, Laboratory of Virology (LABOVIR), State University of Ceará (UECE), Fortaleza, CE, Brazil. |
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Título: |
In vitro antiviral effect of ethanolic extracts from Azadirachta indica and Melia azedarach against goat lentivirus in colostrum and milk. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Scientific Reports, v. 13, article 4677, Mar. 2023. |
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DOI: |
https://doi.org/10.1038/s41598-023-31455-5 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: This study aimed to evaluate, in vitro, the use of leaf extracts of Azadirachta indica (A. indica) and Melia azedarach (M. azedarach) as antivirals against caprine lentivirus (CLV) in colostrum and milk of goat nannies. These were collected from eight individuals and infected with the standard strain of CLV. Samples were then subdivided into aliquots and treated with 150 µg/mL of crude extract, and with ethyl acetate and methanol fractions for 30, 60, and 90 min. Next, somatic cells from colostrum and milk were co-cultured with cells from the ovine third eyelid. After this step, viral titers of the supernatants collected from treatments with greater efficacy in co-culture were assessed. The organic ethyl acetate fractions of both plants at 90 min possibly inhibited the viral activity of CLV by up to a thousandfold in colostrum. In milk, this inhibition was up to 800 times for the respective Meliaceae. In conclusion, the ethanolic fraction of ethyl acetate from both plants demonstrated efficacy against CLV in samples from colostrum and milk when subjected to treatment, which was more effective in colostrum. |
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Palavras-Chave: |
Antiviral plants; CAEV; Caprine Lentivirus; CLV; Composto bioativo; Ethanolic extract; Extrato de plantas; SRLV. |
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Thesagro: |
Azadirachta Indica; Extrato Vegetal; Fitoterapia; Melia Azedarach; Nim; Planta Medicinal. |
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Thesaurus NAL: |
Antiviral properties; Goat diseases; Medicinal plants; Phytotherapy; Plant extracts; Sheep diseases. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02727naa a2200553 a 4500
001 2152602
005 2023-11-27
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1038/s41598-023-31455-5$2DOI
100 1 $aSOUSA, A. L. M. de
245 $aIn vitro antiviral effect of ethanolic extracts from Azadirachta indica and Melia azedarach against goat lentivirus in colostrum and milk.$h[electronic resource]
260 $c2023
520 $aAbstract: This study aimed to evaluate, in vitro, the use of leaf extracts of Azadirachta indica (A. indica) and Melia azedarach (M. azedarach) as antivirals against caprine lentivirus (CLV) in colostrum and milk of goat nannies. These were collected from eight individuals and infected with the standard strain of CLV. Samples were then subdivided into aliquots and treated with 150 µg/mL of crude extract, and with ethyl acetate and methanol fractions for 30, 60, and 90 min. Next, somatic cells from colostrum and milk were co-cultured with cells from the ovine third eyelid. After this step, viral titers of the supernatants collected from treatments with greater efficacy in co-culture were assessed. The organic ethyl acetate fractions of both plants at 90 min possibly inhibited the viral activity of CLV by up to a thousandfold in colostrum. In milk, this inhibition was up to 800 times for the respective Meliaceae. In conclusion, the ethanolic fraction of ethyl acetate from both plants demonstrated efficacy against CLV in samples from colostrum and milk when subjected to treatment, which was more effective in colostrum.
650 $aAntiviral properties
650 $aGoat diseases
650 $aMedicinal plants
650 $aPhytotherapy
650 $aPlant extracts
650 $aSheep diseases
650 $aAzadirachta Indica
650 $aExtrato Vegetal
650 $aFitoterapia
650 $aMelia Azedarach
650 $aNim
650 $aPlanta Medicinal
653 $aAntiviral plants
653 $aCAEV
653 $aCaprine Lentivirus
653 $aCLV
653 $aComposto bioativo
653 $aEthanolic extract
653 $aExtrato de plantas
653 $aSRLV
700 1 $aPINHEIRO, R. R.
700 1 $aARAUJO, J. F.
700 1 $aPEIXOTO, R. M.
700 1 $aAZEVEDO, D. A. A. de
700 1 $aLIMA, A. M. C.
700 1 $aCANUTO, K. M.
700 1 $aRIBEIRO, P. R. V.
700 1 $aSOUZA, A. S. de Q.
700 1 $aSOUZA, S. C. R.
700 1 $aAMORIM, S. L. de
700 1 $aAMARAL, G. P.
700 1 $aSOUZA, V. de
700 1 $aMORAIS, S. M. de
700 1 $aANDRIOLI, A.
700 1 $aTEIXEIRA, M. F. da S.
773 $tScientific Reports$gv. 13, article 4677, Mar. 2023.
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