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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Vega-Avila, A. D. Gumiere, T. Andrade, P. A. M. Lima-Perim, J. E. Durrer, A. Baigori, M. Vazquez, F. Andreote, F. D. |
| Spatial Coverage | Argentina |
| Description | Author Affiliation: Vega-Avila AD ( Department of Soil Science, 'Luiz de Queiroz' College of Agriculture, University of São Paulo (ESALQ/USP), Av. Padua Dias, 11, Piracicaba, Brazil, vegaaviladaniela@gmail.com.) |
| Abstract | Plants interact with a myriad of microbial cells in the rhizosphere, an environment that is considered to be important for plant development. However, the differential structuring of rhizosphere microbial communities due to plant cultivation under differential agricultural practices remains to be described for most plant species. Here we describe the rhizosphere microbiome of grapevine cultivated under conventional and organic practices, using a combination of cultivation-independent approaches. The quantification of bacterial 16S rRNA and nifH genes, by quantitative PCR (qPCR), revealed similar amounts of these genes in the rhizosphere in both vineyards. PCR-DGGE was used to detect differences in the structure of bacterial communities, including both the complete whole communities and specific fractions, such as Alphaproteobacteria, Betaproteobacteria, Actinobacteria, and those harboring the nitrogen-fixing related gene nifH. When analyzed by a multivariate approach (redundancy analysis), the shifts observed in the bacterial communities were poorly explained by variations in the physical and chemical characteristics of the rhizosphere. These approaches were complemented by high-throughput sequencing (67,830 sequences) based on the V6 region of the 16S rRNA gene, identifying the major bacterial groups present in the rhizosphere of grapevines: Proteobacteria, Actinobacteria, Firmicutes, Bacteriodetes, Acidobacteria, Cloroflexi, Verrucomicrobia and Planctomycetes, which occur in distinct proportions in the rhizosphere from each vineyard. The differences might be related to the selection of plant metabolism upon distinct reservoirs of microbial cells found in each vineyard. The results fill a gap in the knowledge of the rhizosphere of grapevines and also show distinctions in these bacterial communities due to agricultural practices. |
| File Format | HTM / HTML |
| ISSN | 00036072 |
| Issue Number | 2 |
| Volume Number | 107 |
| e-ISSN | 15729699 |
| Journal | Antonie van Leeuwenhoek |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2015-02-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Microbiology Discipline Immunology Agriculture Methods Biota Soil Microbiology Argentina Dna, Bacterial Chemistry Genetics Dna, Ribosomal Denaturing Gradient Gel Electrophoresis Oxidoreductases Rna, Ribosomal, 16s Real-time Polymerase Chain Reaction Rhizosphere Sequence Analysis, Dna Vitis Growth & Development Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Molecular Biology Microbiology |
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