Diversity Of Rhizobia
Mostrando 13-24 de 40 artigos, teses e dissertações.
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13. Genetic diversity of indigenous common bean (Phaseolus vulgaris L.) rhizobia from the state of Minas Gerais, Brazil.
2009
Brazilian Journal of Microbiology. Publicado em: 2011
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14. Program, abstracts and related documents.
The context: Soil biodiversity and sustainable agriculture; Abstracts - Theme 1: Monitoring and assessment: Bioindicators of soil health: assessment and monitoring for sustainable agriculture; Practical tools to measure soil health and their use by farmers; Biological soil quality from biomass to biodiversity - importance and resilience to management stress
Londrina: Embrapa Soybean: FAO. Publicado em: 2011
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15. CaracterizaÃÃo fenotÃpica de rizÃbios de solo rizosfÃrico de leguminosas nativas do semi-Ãrido cearense / Phenotypic characterization of rhizobia soil rhizosphere of legumes native to semi-arid region of CearÃ
Os diferentes solos e manejos culturais afetam o equilÃbrio entre solo e organismos endÃgenos, os quais, por sua vez afetam a sustentabilidade do solo. Desse modo acredita-se que a diversidade dos organismos do solo tenha uma relaÃÃo estreita com a diversidade de outros organismos, tanto na superfÃcie, quanto no prÃprio solo e que as interaÃÃes dessa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/06/2010
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16. Characterization of indigenous rhizobia from Caatinga
The aim of this study was to characterize rhizobial isolates from Cratylia mollis Mart. ex Benth, Calliandra depauperata Benth. and Mimosa tenuiflora (Willd.) Poir. by means of rhizobial colonies morphology and restriction analysis of the 16S ribosomal gene (16S rDNA-ARDRA). Nodules were collected in the field and from plants cultivated in a greenhouse exper
Brazilian Journal of Microbiology. Publicado em: 2010-03
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17. Genetic diversity of indigenous common bean (Phaseolus vulgaris L.) rhizobia from the state of Minas Gerais, Brazil
We characterized indigenous common bean rhizobia from five districts of the state of Minas Gerais, Brazil. The isolates were trapped by two common bean varieties, the Mineiro Precoce (Andean origin) and Ouro Negro (Mesoamerican origin). Analysis by BOX-PCR of selected isolates detected a high level of genetic diversity.
Brazilian Journal of Microbiology. Publicado em: 2009-12
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18. Caracterização fenotípica e produção de biopolímeros por bactérias isoladas de nódulos de guandu [(Cajanus cajan (L.) Millsp.]. 2009, 166f. / Phenotypic characterization and biopolymers production by bacteria isolated from pigeonpea [Cajanus cajan (L.) Millsp.] root nodules. Seropédica: UFRRJ, 2008. 166p.
The biological nitrogen fixation (BNF) is a natural process carried out by prokaryotes collectively called diazotrophs. Among the diverse microorganisms able to fix the atmospheric nitrogen, stand out those capable of set up mutualistic associations with legume plants in specialized structures called nodules. Thus the search for microorganisms able to establ
Publicado em: 2009
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19. Taxonomia e diversidade genética de rizóbios microssimbiontes de distintas leguminosas com base na análise polifásica (Box-PCR e 16 S RNAr) e na metodologia de MLSA
The term rhizobia is generically applied to bacteria capable of fixing the atmospheric nitrogen (N2) and converting it to a form assimilable by the plant, when in symbiosis with plants of the Leguminosae family. However, besides their ecological and economic importance, the rhizobia have not been subject of many studies. Based on the data obtained with t
Publicado em: 2008
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20. Diversidade de rizóbios em Florestas de Araucária no Estado de São Paulo / Rhizobia diversity in Araucaria Forests in São Paulo State, Brazil
Araucaria angustifolia (B.) Ktz has a great social, environmental and economic importance to south and southeastern Brazil, although ecosystems supporting this species have been degraded by human activity, making it an endangered species. The nitrogen cycle has vital importance for life and has a special role in the development and upkeep of forests. The nit
Publicado em: 2007
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21. Rehabilitation potential of a mine spoil trhough revegetation and microbial management. / Potencial de reabilitação do solo de uma área degradada, através da revegetação e do manejo microbiano.
The increasing degraded soil areas caused by open cast mining activities has brought critical damages to the environment. The mine spoil must be ameliorated with anthropogenic interferences, consisting of revegetating soils, introducing organic matter and microbial diversity, basic conditions for a sustainable soil biological activity. The objective of this
Publicado em: 2004
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22. Genetic Diversity and Phylogeny of Rhizobia That Nodulate Acacia spp. in Morocco Assessed by Analysis of rRNA Genes
Forty rhizobia nodulating four Acacia species (A. gummifera, A. raddiana, A. cyanophylla, and A. horrida) were isolated from different sites in Morocco. These rhizobia were compared by analyzing both the 16S rRNA gene (rDNA) and the 16S-23S rRNA spacer by PCR with restriction fragment length polymorphism (RFLP) analysis. Analysis of the length of 16S-23S spa
American Society for Microbiology.
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23. Diversity among Rhizobia Effective with Robinia pseudoacacia L. †
The diversity of rhizobia that form symbioses with roots of black locust (Robinia pseudoacacia L.), an economically important leguminous tree species, was examined by inoculating seedling root zones with samples of soil collected from the United States, Canada, and China. Bacteria were isolated from nodules, subcultured, and verified to be rhizobia. The 186
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24. Diversity of retron elements in a population of rhizobia and other gram-negative bacteria.
Genetic elements called retrons reside on the chromosome of Escherichia coli and the myxobacteria and represent the first reverse transcriptase-encoding element to be found in a prokaryotic cell. All known retrons produce a functionally obscure RNA-DNA satellite molecule called multicopy single-stranded DNA (msDNA). We report here the presence of msDNA-produ