N2 Symbiotic Fixation
Mostrando 1-12 de 75 artigos, teses e dissertações.
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1. Symbiotic potential and survival of native rhizobia kept on different carriers
Native rhizobia are ideal for use as commercial legume inoculants. The characteristics of the carrier used to store the inoculants are important for the survival and symbiotic potential of the rhizobia. The objective of this study was to investigate the effects of peat (PEAT), perlite sugarcane bagasse (PSB), carboxymethyl cellulose plus starch (CMCS), an
Braz. J. Microbiol.. Publicado em: 2015-09
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2. Symbiotic nitrogen-fixing bacterial populations trapped from soils under agroforestry systems in the Western Amazon
Cowpea (Vigna unguiculata) is an important grain-producing legume that can forego nitrogen fertilization by establishing an efficient symbiosis with nitrogen-fixing bacteria. Although inoculating strains have already been selected for this species, little is known about the genotypic and symbiotic diversity of native rhizobia. Recently, Bradyrhizobium has be
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-12
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3. Interrelação bactérias (MHB) e FMA : estratégia para estimular a eficiência simbiótica e micorrização de sabiá. / Bacteria (MHB) and FMA interrelation : a strategy to stimulate the symbiotic efficiency and mycorrhizal of sabiá.
A utilização de plantas associadas simbioticamente, com bactérias fixadoras de N2 e fungos micorrízicos arbusculares (FMA), constitui uma estratégia eficiente para acelerar a recuperação de áreas impactadas além de reduzir consideravelmente os custos com a mesma. O conceito de mycorrhiza helper bacteria (MHB) tem sido introduzido e discutido devido
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/03/2012
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4. Physiological and symbiotic diversity of Cupriavidus necator strains isolated from nodules of Leguminosae species
Biological nitrogen fixation, performed by diazotrophic bacteria, plays an important role in the maintenance of agricultural systems, as it contributes with significant amounts of the nitrogen (N) needed for plant growth, totally or partially exempting the use of industrial N fertilisers. Twenty-five bacterial strains isolated from nodules of Leucaena leucoc
Sci. agric. (Piracicaba, Braz.). Publicado em: 2012
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5. Tolerância de Cupriavidus necator a cádmio e zinco e sua eficiência simbiótica em leguminosas / The Cupriavidus necator tolerance to cadmium and zinc and its symbiotic efficiency in legumes
A contaminação por metais pesados como cádmio, cobre, chumbo e zinco no solo, provenientes de atividades de mineração, causa sérias consequências ambientais e impactos à saúde pública devido a sua toxicidade e capacidade de acumulação. Assim, a recuperação de áreas degradadas pela atividade de mineração deve ser eficaz e realizada visando ac
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/08/2011
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6. Taxa de inóculo na habilidade competitiva de rizóbios e eficiência na fixação do N2 em feijão-caupi ( Vigna unguiculata (L.) Walp,). / Inoculum rate in competitiveness and effective ability for nitrogen fixation of rhizobia on Cowpea (Vigna unguiculata (L.) Walp.).
O feijão - caupi (Vigna unguiculata (L.) Walp.) é cultivado, no Brasil, nas mais diferentes condições edafoclimáticas. Devido a sua boa adaptabilidade às condições tropicais e por ser uma cultura de alto valor sócio-econômico, tem um papel importante para a capitalização de pequenos agricultores na região Nordeste. Por ser uma leguminosa, o feij
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2011
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7. 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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8. Influencia da antibiose exercida par actinomicetos as estirpes de Bradyrhizobium spp., na nodulacao da soja.
Este trabalho teve por objetivo avaliar o espectro antibiotico de actinomicetos provenientes de solos de Cerrados e a sua influencia na nodulacao da soja. As estirpes BR 29, BR 33, BR 40, BR 85, BR 86, BR 96, 47/587, 3B-7 e 4A-5 de Bradyrhizobium spp. apresentaram comportamento diferenciado em relacao a resistencia natural aos antibioticos produzidos por 204
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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9. Nodulation and N2 fixation effectiveness of Bradyrhizobium strains in symbiosis with Adzuki Bean, Vigna angularis
In pot experiment, one isolate Knj from a Serbian soil, four strains of Bradyrhizobium japonicum and three strains of Bradyrhizobium spp. were examined for the effect on adzuki bean nodulation and effectiveness in symbiotic N2 fixation. All the tested strains produced root nodules in adzuki bean. Strains of B. japonicum showed high potential of N2 fixation,
Brazilian Archives of Biology and Technology. Publicado em: 2010-04
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10. FixaÃÃo biolÃgica de nitrogÃnio e solubilizaÃÃo de fosfatos por bactÃrias isoladas de nÃdulos de caupi [Vigna unguiculata (L.) Walp.] / Biological nitrogen fixation and phosphate solubilization by bacteria isolated from cowpea nodules [Vigna unguiculata (L.) Walp.]
The biological nitrogen fixation and solubilization of insoluble inorganic phosphates are processes mediated by soil microorganisms which can increase crop productivity. The objective of this study was to isolate and select bacteria nodulating cowpea and efficient in biological nitrogen fixation and solubilization of insoluble phosphates and, to identify and
Publicado em: 2009
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11. Metabolismo de ureideos e asparagina durante a ontogenia do fruto de plantas de soja nodulados e não-nodulados
The synthesis and accumulation of reserve proteins in seeds require a large supply of reduced nitrogen. Generally, the transport of nitrogen from other parts of the plant involves a few specific compounds, the nature of which depends on the species and growth conditions. The fixation of N 2 by Rhizobium in symbiotic association with soybeans, cultivated in t
Publicado em: 1982
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12. Stimulation of Symbiotic N2 Fixation in Trifolium repens L. under Elevated Atmospheric pCO2 in a Grassland Ecosystem.
Symbiotic N2 fixation is one of the main processes that introduces N into terrestrial ecosystems. As such, it may be crucial for the sequestration of the extra C available in a world of continuously increasing atmospheric CO2 partial pressure (pCO2). The effect of elevated pCO2 (60 Pa) on symbiotic N2 fixation (15N-isotope dilution method) was investigated u