Symbiotic Effectiveness
Mostrando 1-12 de 37 artigos, teses e dissertações.
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1. Effectiveness of Arbuscular Mycorrhizal Fungal Isolates from the Land Uses of Amazon Region in Symbiosis with Cowpea
ABSTRACT Arbuscular mycorrhizal fungi provide several ecosystem services, including increase in plant growth and nutrition. The occurrence, richness, and structure of arbuscular mycorrhizal fungi communities are influenced by human activities, which may affect the functional benefits of these components of the soil biota. In this study, 13 arbuscular mycorrh
An. Acad. Bras. Ciênc.. Publicado em: 01/02/2018
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2. Symbiotic effectiveness of Bradyrhizobium ingae in promoting growth of Inga edulis Mart. seedlings
ABSTRACT Inga edulis Mart. is a leguminous tree adapted to acidic and low-fertility soils that establishes symbioses with nitrogen (N)-fixing bacteria. The identification of effective bacteria in biological N fixation may bolster the use of I. edulis in degraded or modified areas and agroforestry systems. Therefore, the aims of this study were evaluation of
Rev. Bras. Ciênc. Solo. Publicado em: 06/02/2017
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3. A randomized clinical trial on the effectiveness of a symbiotic product to decolonize patients harboring multidrug-resistant Gram-negative bacilli
Abstract INTRODUCTION: We aimed to evaluate the effectiveness of a symbiotic product to decolonize the intestinal tract of patients harboring multidrug-resistant (MDR) Gram-negative bacilli and to prevent nosocomial infections. METHODS: This was a randomized, double blind, placebo-controlled clinical trial, conducted in a tertiary-care university hospital.
Rev. Soc. Bras. Med. Trop.. Publicado em: 2016-10
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4. Symbiotic effectiveness and ecological characterization of indigenous Rhizobium loti populations in Uruguay.
The objective of this work were to describe the distribution, density and seasonal variation of the indigenous populations of Rhizobium loti in different Uruguayan soils and to determine symbiotic effectiveness and stress tolerance factors of different isolates, both with the aim of obtaining selected strains to re-introduce as inoculants in Lotus pastures.
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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5. Dependência e resposta de mudas de cedro a fungos micorrízicos arbusculares.
Os objetivos deste trabalho foram avaliar a resposta de mudas de cedro (Cedrela fissilis Vell.) a espécies de fungos micorrízicos arbusculares (FMA) e determinar o grau de dependência micorrízica dessas mudas. O ensaio foi conduzido em casa de vegetação, em delineamento de blocos inteiramente casualizados, em esquema fatorial 5 (doses de P) x 5 (4 esp�
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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6. 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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7. Caracterização da diversidade de estirpes de Bradyrhibium japonicum e B. elkanii estabelecidas por inoculação em solos do Cerrados, isoladas de nódulos de soja
The plasticity of rhizobial genomes is far greater than previously thought, with complex genomic recombination events that may be accelerated by the often-stressful environmental conditions of the tropics. This study aimed at evaluating changes in soybean rhizobia due to adaptation to inhospitable environmental conditions (high temperatures, drought and acid
Publicado em: 2006
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8. Effect of Sym Plasmid Curing on Symbiotic Effectiveness in Rhizobium fredii†
A mutant, USDA 206C, of Rhizobium fredii USDA 206 was obtained by passage on acridine plates. This mutant was cured of its 197-megadalton Sym plasmid but retained its symbiotic effectiveness. Multiple plasmid and chromosomally borne nif gene copies have previously been shown in R. fredii USDA 206. HindIII and EcoRI restriction enzyme digests of plasmid and t
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9. Isolation of Rhizobium leguminosarum (biovar trifolii) Strains from Ethiopian Soils and Symbiotic Effectiveness on African Annual Clover Species
Strains of Rhizobium leguminosarum (biovar trifolii) isolated from two Ethiopian soils or obtained from a commercial source were evaluated for symbiotic effectiveness on five African annual clover species. Numerous Rhizobium trifolii strains that exhibited varying levels of symbiotic effectiveness were isolated from both soils (a nitosol and a vertisol), and
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10. Relationships Among Rhizobia from Native Australian Legumes
Isolates from 12 legumes at three sites in Victoria showed a wide range of morphological, cultural, symbiotic, and serological properties. Isolates from Acacia longifolia var. sophorae and Kennedia prostrata were fast growing but nodulated ineffectively Macroptilium atropurpureum and all native legumes except Swainsonia lessertiifolia. Isolates from S. lesse
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11. Effect of Naturally Occurring nif Reiterations on Symbiotic Effectiveness in Rhizobium phaseoli
Most naturally occurring strains of Rhizobium phaseoli possess reiteration of the nif genes. Three regions contain nitrogenase structural genes in strain CFN42. Two of these regions (a and b) have copies of nifH, nifD, and nifK, whereas the third region (c) contains only nifH. Strains containing mutations in either nif region a or nif region b had significan
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12. Symbiotic Effectiveness and N2 Fixation in Nodulated Soybean 1