|
|
|
| Registros recuperados: 78 | |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
| ROSSMANN, M.; PÉREZ-JARAMILLO, J. E.; CHIARAMONTE, J. B.; KAVAMURA, V. N.; DUMACK, K.; FIORE-DONNO, A. M.; MENDES, L. W.; BONKOWSKI, M.; MAUCHLINE, T.; RAAIJMAKERS, J. M.; MENDES, R.. |
| Domestication of plants may have impacted the interactions between plants and their rhizosphere microbiome. Considering that plants rely on the rhizosphere microbiome for functions related with plant growth, nutrition and health, the objective of this work was to analyse the rhizosphere microbiome of wild relatives and modern varieties of wheat and to investigate whether wild relatives recruit a higher proportion of beneficial microbes than modern cultivars. By 16S-rRNA gene amplicon, ITS and 18SrRNA gene amplicon, we assessed the bacterial, fungal and cercozoa rhizosphere community composition of five modern cultivars and three wheat ancestors cultivated in forest and agricultural soils. Results revealed a pronounced soil type and rhizosphere effect on... |
| Tipo: Resumo em anais de congresso (ALICE) |
Palavras-chave: Wild wheat; Trigo; Rizosfera; Rhizosphere; Wheat; Microbiome. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103217 |
| |
|
|
| Velázquez-Sepúlveda,I; Orozco-Mosqueda,MC; Prieto-Barajas,CM; Santoyo,G. |
| Rhizospheric soil is one the largest reservoirs of microbial genetic diversity. Before conducting a large-scale metagenomic analysis of an environment, such as a rhizospheric soil, it is necessary to perform a pre-screening of the resident genetic diversity. In this study, we analyzed the bacterial diversity associated with the rhizosphere of wheat plants by PCR amplification, construction of a library and sequencing of 16S rDNA genes. Thirty OTUs were detected, including the Classes Alfaproteobacteria, Betaproteobacteria, Deltaproteobacteria, Gammaproteobateria, Actinobacteria, Bacilli, Clostridia and Uncultivable bacteria. Within the Gammaproteobacteria class, the genera Pseudomonas, Stenotrophomonas and Bacillus were the most abundant, since they... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial diversity; Rhizosphere; Wheat; 16S ribosomal genes. |
| Ano: 2012 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572012000100012 |
| |
|
| |
|
| |
|
|
| MENDES, L. W.; MENDES, R.; RAAIJMAKERS, J. M.; TSAI, S. M.. |
| Over the past century, plant breeding programs have substantially improved plant growth and health, but have not yet considered the potential effects on the plant microbiome. Here, we conducted a metatranscriptome analysis to determine if and how breeding for resistance of common bean against the root pathogen Fusarium oxysporum (Fox) affected gene expression in the rhizobacterial community. Our data revealed that rhizobacterial community assembly of Fox-resistant and susceptible bean cultivars follows niche-based mechanisms, presenting lower diversity and distinct community structure compared to the bulk soil. The microbiome of the Fox-resistant bean cultivar presented a significantly higher expression of bacterial genes associated with nutrient... |
| Tipo: Resumo em anais de congresso (ALICE) |
Palavras-chave: Rizosfera; Feijão; Microbiome; Rhizosphere; Beans; Breeding. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103238 |
| |
|
|
| Bumunang,Emmanuel Wihkochombom; Babalola,Olubukola Oluranti. |
| This study was done to examine the rhizobacteria from field grown Genetically Modified (GM) maize and its non-GM counterpart. Rhizospheric soil samples were collected at 30 days after sowing (DAS) and at post-harvest from two experimental fields in Gauteng, South Africa. Total rhizobacteria (cfu/g) in GM and non-GM soil samples was not significantly different across the different media 30 DAS and at post-harvest. Rhizobacterial isolates obtained were biochemically characterized using the analytical profile index. Species of Pseudomonas, Aeromonas, Sphingomonas, Burkholderia, Stenotrophomonas, Achromobacter, Ewingella and Bacillus were screened in vitro for plant growth promoting traits such as, ammonia production, catalase activity, indole acetic acid... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetically modified maize; Plant growth promoting traits; Rhizosphere; Rhizobacteria. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000100001 |
| |
|
|
| Tahir,Muhammad; Khalid,Umaira; Ijaz,Muhammad; Shah,Ghulam Mustafa; Naeem,Muhammad Asif; Shahid,Muhammad; Mahmood,Khalid; Ahmad,Naveed; Kareem,Fazal. |
| Abstract This study was aimed to investigate the effect of bio-organic phosphate either alone or in combination with phosphorus solubilizing bacteria strain (Bacillus MWT-14) on the growth and productivity of two wheat cultivars (Galaxy-2013 and Punjab-2011) along with recommended (150–100 NP kg ha−1) and half dose (75–50 NP kg ha−1) of fertilizers. The combined application of bio-organic phosphate and the phosphorous solubilizing bacteria strain at either fertilizer level significantly improved the growth, yield parameters and productivity of both wheat cultivars compared to non-inoculated control treatments. The cultivar Punjab-2011 produced the higher chlorophyll contents, crop growth rate, and the straw yield at half dose of NP fertilizer; while... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phosphorous; Phosphorous solubilizing bacteria; Bioavailability; Rhizosphere; Low fertilizer input. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000500015 |
| |
|
|
| SELDIN, L.; ROSADO, A. S.; CRUZ, D. W. da; NOBREGA, A.; ELSAS, J. D. van; PAIVA, E.. |
| Paenibacillus azotofixans is a nitrogen-fixing bacterium often found in soil and in the rhizospheres of different grasses. In this study, two Brazilian clay soils were planted with cross-hybrid maize (BR-201) and four stages of plant growth were analysed to characterize the P. azotofixans populations present in the rhizoplanes, rhizospheres, and non-root-associated soils (herein called nonrhizospheres). A total of 106 strains were isolated and identified as P. azotofixans with an API 50CH kit, by classical biochemical tests, and via the use of specific primers based on the 16S rRNA gene in PCRs. To compare the isolated strains, phenotypic characteristics were determined and three different probes were used in hybridization experiments: two nif probes and... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Maize; Soil types; Cerrado soils; Clay soils; Rhizosphere. |
| Ano: 1998 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/489147 |
| |
|
| |
|
|
| Hernández-León,R; Martínez-Trujillo,M; Valencia-Cantero,E; Santoyo,G. |
| Rhizospheric soil of wheat plants contains a high diversity of microorganisms, and therefore, comprises a large reservoir for discovering genes with diverse agro-biotechnological applications. In this work, we constructed an E. coli metagenomic library based on bacterial artificial chromosome (BAC) clones with large genomic inserts from metagenomic DNA from the rhizosphere of wheat plants. The average of the DNA cloned segments varies from 5 to 80 kb, with an average size of 38 kb. Random clones were end-sequenced and homology results showed that the clonation of metagenomic DNA codes mainly for metabolic and catalytic functions (40%), including amidohydrolase, hydrolase, peptidase, serine protease, endonuclease and exonuclease. Another interesting... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Metagenomics; Rhizosphere; Wheat. |
| Ano: 2012 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572012000100018 |
| |
|
| |
|
| |
|
|
| BRAGA, L. P. P.; YOSHIURA, C. A.; BORGES, C. D.; HORN, M. A.; BROWN, G. G.; DRAKE, H. L.; TSAI, S. M.. |
| For the last 150 years many studies have shown the importance of earthworms for plant growth, but the exact mechanisms involved in the process are still poorly understood. Many important functions required for plant growth can be performed by soil microbes in the rhizosphere. To investigate earthworm influence on the rhizosphere microbial community, we performed a macrocosm experiment with and without Pontoscolex corethrurus (EW+ and EW?, respectively) and followed various soil and rhizosphere processes for 217 days with sugarcane. In EW+ treatments, N2O concentrations belowground (15 cm depth) and relative abundances of nitrous oxide genes (nosZ) were higher in bulk soil and rhizosphere, suggesting that soil microbes were able to consume earthworm-induced... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Crescimento de plantas; Minhoca; Solo; Rizosfera; Biologia do solo; Earthworms; Rhizosphere. |
| Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/1067637 |
| |
|
| |
|
|
| OLIVEIRA, C.A. de; MARRIEL, I. E.; ALVES, V. M. C.; PARENTONI, S. N.; PEREIRA FILHO, I. A.; SCHAFFERT, R. E.; MUZZI, M.R.S.; SA, N.M.H. de. |
| A avaliacao da diversidade microbiana e um bom indicador da qualidade dos solos e de diferencas existentes entre solos de rizosfera de plantas. O objetivo desse trabalho foi avaliar a diversidade metabolica de microrganismos totais da rizosfera, pelo sistema BIOLOG. O solos rizosferico de genotipos de milho, eficientes (E) e ineficientes (I) para fosforo, em alta e baixo P foram coletados na Embrapa Milho e Sorgo, Sete Lagoas, MG, Os hibridos avaliados foram: HT, HS1, HS2, eficientes e L22, ineficientes. Como amostras testemunhas: cerrado natural (mata), plantio direto e solo nao rizosferico dos hibridos e linhagens. As comunidades microbianas tivera, perfil distinto de utilizacao das fontes de carbono, conforme a analise de agrupamento e PCA. Amostras de... |
| Tipo: Artigo em anais de congresso (ALICE) |
Palavras-chave: Milho; Rizosfera; Diversidade; Microorganismos; Fosforo; Cerrado; Zea mays; Maize; Rhizosphere; Diversity; Microorganisms; Phosphorus; Savanna. |
| Ano: 2002 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/474378 |
| |
| Registros recuperados: 78 | |
|
|
|
