Legume Tree
Mostrando 13-24 de 28 artigos, teses e dissertações.
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13. AVALIAÇÃO MERCADOLÓGICA E DE PRODUÇÃO AGRÍCOLA, VISANDO A PROPOSIÇÃO DE SISTEMAS AGROFLORESTAIS PARA A MESORREGIÃO SUDOESTE DE MATO GROSSO DO SUL / MERCADOLÓGICA EVALUATION IN AGRICULTURAL PRODUCTION, VISANDO A PROPOSAL FOR SAF FOR MESORREGIÃO SOUTHEST MATO GROSSO IN SOUTH
The present work was perceived in municipal district of Dourados/MS, mesoregion southwest of Mato Grosso do Sul, with he purpose of meeting the socio-demographic profile and the habits of consumers shopping of fruits and vegetables, and obtain social indications and agroeclogical develop models for planning of production systems based on agroforestry sistems
Publicado em: 2009
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14. Deposition, chemical composition and decomposition of litter in a sabiá (Mimosa caesalpiniifolia Benth ) canopy / Deposição,composição química e decomposição de liteira em um bosque de sabiá (Mimosa caesalpiniifolia Benth) , Itambé-PE
The objective of this experiment was to evaluate the deposition, chemical composition, and decomposition of litter in a sabiá (Mimosa caesalpiniifolia Benth) canopy. The experiment was carried out at the Experimental Station of Itambé-IPA. The evaluation of existing and deposited litter was carried through the period of August of 2006 until July of 2007, e
Publicado em: 2008
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15. Fertilizantes de leguminosas: tecnologia inovadora de adubação verde para provisão de nitrogênio em sistemas orgânicos de produção. / Legume fertilizers: innovative technology of green manuring for nitrogen supply in organic farming systems.
One of the main limitations to the organic food production is the reduced availability of low cost and efficient nitrogen (N) sources. Green manuring practices, in rotation or intercropped, have been used, but hardly are they able to supply crop needs. This dissertation presents an innovative technology of green manuring, derived of the cutting, dehydration
Publicado em: 2007
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16. Bradyrhizobium sp. Strains That Nodulate the Leguminous Tree Acacia albida Produce Fucosylated and Partially Sulfated Nod Factors
We determined the structures of Nod factors produced by six different Bradyrhizobium sp. strains nodulating the legume tree Acacia albida (syn. Faidherbia albida). Compounds from all strains were found to be similar, i.e., O-carbamoylated and substituted by an often sulfated methyl fucose and different from compounds produced by Rhizobium-Mesorhizobium-Sinor
American Society for Microbiology.
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17. Phylogeny of Sym plasmids of rhizobia by PCR-based sequencing of a nodC segment.
To understand the host specificity of rhizobia and the relationship between the evolution of Sym plasmids and that of host plants, we determined partial nodC sequences of 10 representative rhizobium strains and then constructed an evolutionary tree for the deduced amino acid sequences with four published sequences. These coding sequences yield a phylogenetic
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18. Legume Symbiotic Nitrogen Fixation by β-Proteobacteria Is Widespread in Nature
Following the initial discovery of two legume-nodulating Burkholderia strains (L. Moulin, A. Munive, B. Dreyfus, and C. Boivin-Masson, Nature 411:948-950, 2001), we identified as nitrogen-fixing legume symbionts at least 50 different strains of Burkholderia caribensis and Ralstonia taiwanensis, all belonging to the β-subclass of proteobacteria, thus extendi
American Society for Microbiology.
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19. Rhizobium-Legume Symbiosis and Nitrogen Fixation under Severe Conditions and in an Arid Climate
Biological N2 fixation represents the major source of N input in agricultural soils including those in arid regions. The major N2-fixing systems are the symbiotic systems, which can play a significant role in improving the fertility and productivity of low-N soils. The Rhizobium-legume symbioses have received most attention and have been examined extensively
American Society for Microbiology.
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20. Cell-specific expression of the promoters of two nonlegume hemoglobin genes in a transgenic legume, Lotus corniculatus.
The promoters of the hemoglobin genes from the nitrogen-fixing tree Parasponia andersonii and the related nonnitrogen-fixing Trema tomentosa both confer beta-glucuronidase reporter gene expression to the central zone of the nodules of a transgenic legume, Lotus corniculatus. beta-Glucuronidase expression was high in the uninfected interstitial cells and pare
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21. Cloning of nod gene regions from mesquite rhizobia and bradyrhizobia and nucleotide sequence of the nodD gene from mesquite rhizobia.
Nitrogen-fixing symbiosis between bacteria and the tree legume mesquite (Prosopis glandulosa) is important for the maintenance of many desert ecosystems. Genes essential for nodulation and for extending the host range to mesquite were isolated from cosmid libraries of Rhizobium (mesquite) sp. strain HW17b and Bradyrhizobium (mesquite) sp. strain HW10h and we
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22. Bradyrhizobium Populations Occur in Deep Soil under the Leguminous Tree Acacia albida
Soil cores were drilled under the leguminous tree Acacia albida growing in two different ecoclimatic zones of West Africa: the Sahelian area (100 to 500 mm of annual rainfall) and the Sudano-Guinean area (1,000 to 1,500 mm of annual rainfall). Soil samples were collected at different depths from the surface down to the water table level and analyzed for the
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23. Genetic diversity of rhizobial symbionts isolated from legume species within the genera Astragalus, Oxytropis, and Onobrychis.
The genetic diversity of 44 rhizobial isolates from Astragalus, Oxytropis, and Onobrychis spp. originating from different geographic locations was evaluated by mapped restriction site polymorphism (MRSP) analysis of 16S rRNA genes and by PCR DNA fingerprinting with repetitive sequences (REP-PCR). A comparison of tree topologies of reference strains construct
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24. Phylogeny of the phototrophic rhizobium strain BTAi1 by polymerase chain reaction-based sequencing of a 16S rRNA gene segment.
A 260-bp segment of the DNA that encodes 16S rRNA, corresponding to positions 44 to 337 in the Escherichia coli sequence, was amplified by the polymerase chain reaction and sequenced from each of 13 bacteria (rhizobia and purple phototrophs) in the alpha subdivision of the class Proteobacteria. The phylogenetic tree calculated from differences in the sequenc