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| Registros recuperados: 26 | |
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| Zilli,Jerri Édson; Valisheski,Romano Roberto; Freire Filho,Francisco Rodrigues; Neves,Maria Cristina Prata; Rumjanek,Norma Gouvêa. |
| In order to contribute for the optimization of biological nitrogen fixation (BNF) associated with cowpea in Cerrado areas in the Northeast region of Brazil, this work aimed to analyze the diversity of rhizobial populations in eight areas of Cerrado, during a soybean and rice-cowpea rotation. Morphological traits (mucous production and colony morphology), genotypic analyzes (ARDRA 16S) and intrinsic resistance to antibiotics were determined for a collection of isolates captured using cowpea as a host-plant. The morphological data showed a inverse correlation (p < 0.05) between the number of legume (soybean and cowpea) crops, according to the history of each area, and rhizobium diversity, estimated by the Shannon-Weaver index. ARDRA data showed that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diversity; Bradyrhizobium; Cerrado; Cowpea; Antibiotic. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000300002 |
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| Simões-Araújo,Jean Luiz; Leite,Jakson; Marie Rouws,Luc Felicianus; Passos,Samuel Ribeiro; Xavier,Gustavo Ribeiro; Rumjanek,Norma Gouvêa; Zilli,Jerri Édson. |
| Abstract The strain BR 3262 was isolated from nodule of cowpea (Vigna unguiculata L. Walp) growing in soil of the Atlantic Forest area in Brazil and it is reported as an efficient nitrogen fixing bacterium associated to cowpea. Firstly, this strain was assigned as Bradyrhizobium elkanii, however, recently a more detailed genetic and molecular characterization has indicated it could be a Bradyrhizobium pachyrhizi species. We report here the draft genome sequence of B. pachyrhizi strain BR 3262, an elite bacterium used as inoculant for cowpea. The whole genome with 116 scaffolds, 8,965,178 bp and 63.8% of C+G content for BR 3262 was obtained using Illumina MiSeq sequencing technology. Annotation was added by the RAST prokaryotic genome annotation service and... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Atlantic forest area; Biological nitrogen fixation; Next generation sequencing; Nodulation. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000400783 |
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| Vergara,Carlos; Araujo,Karla Emanuelle Campos; Alves,Luiziene Soares; Souza,Sônia Regina de; Santos,Leandro Azevedo; Santa-Catarina,Claudete; Silva,Krisle da; Pereira,Gilmara Maria Duarte; Xavier,Gustavo Ribeiro; Zilli,Jerri Édson. |
| ABSTRACT The use of dark septate fungi (DSE) to promote plant growth can be beneficial to agriculture, and these organisms are important allies in the search for sustainable agriculture practices. This study investigates the contribution of dark septate fungi to the absorption of nutrients by rice plants and their ensuing growth. Four dark septate fungi isolates that were identified by Internal transcribed spacer phylogeny were inoculated in rice seeds (Cv. Piauí). The resulting root colonization was estimated and the kinetic parameters Vmax and Km were calculated from the nitrate contents of the nutrient solution. The macronutrient levels in the shoots, and the NO3--N, NH4+-N, free amino-N and soluble sugars in the roots, sheathes and leaves were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa L.; DSE; NO3−-N; Tillering; Colonization. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000100067 |
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| Registros recuperados: 26 | |
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