Nitrogen Fixing Bacteria
Mostrando 25-36 de 212 artigos, teses e dissertações.
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25. Otimização do processo de produção de células das estirpes de Bradyrhizobium INPA 3-11B e UFLA 3-84, inoculantes do feijão-caupi
O feijão-caupi, Vigna unguiculata (L.) Walp., é uma cultura de importância socioeconômica, principalmente para as populações das regiões Norte e Nordeste, e beneficia-se da fixação biológica de nitrogênio. Mas, é cultivado, em geral, com baixa tecnologia, resultando em baixa produtividade. Existem mais de 100 estirpes microbianas aprovadas para p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/12/2011
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26. Reserva nitrogenada no genero Beijerinckia isolada da rizosfera de cana-de-açúcar. / Nitrogen reserve in the genus Beijerinckia isolated from sugarcane rhizosphere.
Beijerinckia sp. bacteria free-living nitrogen-fixing, commonly found in tropical lateritic soils. The cyanophycin produced by cyanobacteria is the only intracellular nitrogen reserve described to date. This study aimed to verify the intracellular buildup of nitrogen associated with Biological Nitrogen Fixation in five Beijerinckia isolated from the rhizosph
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2011
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27. Diversity of 16S rRNA genes from bacteria of sugarcane rhizosphere soil
Sugarcane is an important agricultural product of Brazil, with a total production of more than 500 million tons. Knowledge of the bacterial community associated with agricultural crops and the soil status is a decisive step towards understanding how microorganisms influence crop productivity. However, most studies aim to isolate endophytic or rhizosphere bac
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-12
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28. Density and diversity of diazotrophic bacteria isolated from Amazonian soils using N-free semi-solid media
Non-symbiotic diazotrophic bacteria are amongst the most important functional groups of soil-dwelling microorganisms. These bacteria contribute to plant growth predominantly through biological N2 fixation. Here, we evaluated the density and diversity of non-symbiotic diazotrophic bacteria in soils taken from diverse land use systems (LUS) in Amazonia using n
Scientia Agricola. Publicado em: 2011-10
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29. Characterization of free nitrogen fixing bacteria of the genus Azotobacter in organic vegetable-grown Colombian soils
With the purpose of isolating and characterizing free nitrogen fixing bacteria (FNFB) of the genus Azotobacter, soil samples were collected randomly from different vegetable organic cultures with neutral pH in different zones of Boyacá-Colombia. Isolations were done in selective free nitrogen Ashby-Sucrose agar obtaining a recovery of 40%. Twenty four isola
Brazilian Journal of Microbiology. Publicado em: 2011-09
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30. The nematicidal effect of some bacterial biofertilizers on Meloidogyne incognita in sandy soil
In a greenhouse experiment, the nematicidal effect of some bacterial biofertilizers including the nitrogen fixing bacteria (NFB) Paenibacillus polymyxa (four strains), the phosphate solubilizing bacteria (PSB) Bacillus megaterium (three strains) and the potassium solubilizing bacteria (KSB) B. circulans (three strains) were evaluated individually on tomato p
Brazilian Journal of Microbiology. Publicado em: 2011-03
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31. Application of representational difference analysis to identify genomic differences between Bradyrhizobium elkanii and B. japonicum species
Bradyrhizobium elkanii is successfully used in the formulation of commercial inoculants and, together with B. japonicum, it fully supplies the plant nitrogen demands. Despite the similarity between B. japonicum and B. elkanii species, several works demonstrated genetic and physiological differences between them. In this work Representational Difference Analy
Publicado em: 2011
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32. Classificacao taxonomica, baseada na caracterizacao molecular, das estirpes de rizobio recomendadas para a culturas da soja e do feijoeiro.
As culturas da soja [Glycine max (L.) Merril] e do feijoeiro (Phaseolus vulgaris) sao de grande importancia economica e social para o Brasil e ambas podem ser capazes de suprir suas necessidades do nutriente nitrogenio pela simbiose com bacterias da familia Rhizobiaceae. Para garantir a maximizacao do processo biologico, porem, deve-se proceder a inoculacao
Londrina: Embrapa Soja. Publicado em: 2011
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33. Taxonomia de pracriontes isolados de cnidários de São Sebastião, SP, Brasil / Taxonomy of prokaryontes isolated from cnidarians of São Sebastião, SP, Brasil
Microorganisms have a key role in the health of cnidarians establishing ecologic relationships, of parasitism to mutualism. The knowledge on the diversity of prokaryotes associated with corals in Brazil is very limited. This is the first study on the taxonomic characterization of heterotrophic bacteria, including putative N2-fixing and specially vibrios isol
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/04/2010
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34. Application of representational difference analysis to identify genomic differences between Bradyrhizobium elkanii and B. Japonicum species
Bradyrhizobium elkanii is successfully used in the formulation of commercial inoculants and, together with B. japonicum, it fully supplies the plant nitrogen demands. Despite the similarity between B. japonicum and B. elkanii species, several works demonstrated genetic and physiological differences between them. In this work Representational Difference Analy
Brazilian Journal of Microbiology. Publicado em: 2010-12
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35. Identificação de cultivares de milho eficientes na absorção de nitrogênio e na associação com bactérias diazotróficas / Identification of maize cultivars efficient in nitrogen uptake and diazotrophic bacteria association
Cultivares adaptados a ambientes pobres em nitrogênio e capazes de se associar com bactérias diazotróficas podem representar uma alternativa para a produção do milho em sistemas agrícolas com baixa utilização de insumos. Visando identificar cultivares de milho eficientes na absorção de nitrogênio e na associação com bactérias diazotróficas foi
Publicado em: 2010
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36. Ocorrência de bactérias diazotróficas associadas a cultivares de sorgo forrageiro / Occurrence of diazotrophic bacteria associated with forage sorghum cultivars
O presente estudo objetivou avaliar a ocorrência de bactérias diazotróficas associadas ao sorgo, selecionar cultivares eficientes na associação com bactérias diazotróficas e identificar os isolados mais eficientes em fixar nitrogênio atmosférico (N2) e produzir ácido indol-acético (AIA). Utilizaram-se 14 cultivares de sorgo forrageiro em vasos, co
Publicado em: 2010