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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Masciarelli, Oscar Llanes, Analía Luna, Virginia |
| Description | Country affiliation: Argentina Author Affiliation: Masciarelli O ( Laboratorio de Fisiología Vegetal, Departamento de Ciencias Naturales, Fac. de Cs. Exactas, Universidad Nacional de Río Cuarto, Ruta 36 Km 601, 5800 Río Cuarto, Argentina.); Llanes A ( Laboratorio de Fisiología Vegetal, Departamento de Ciencias Naturales, Fac. de Cs. Exactas, Universidad Nacional de Río Cuarto, Ruta 36 Km 601, 5800 Río Cuarto, Argentina.); Luna V ( Laboratorio de Fisiología Vegetal, Departamento de Ciencias Naturales, Fac. de Cs. Exactas, Universidad Nacional de Río Cuarto, Ruta 36 Km 601, 5800 Río Cuarto, Argentina. Electronic address: vluna@exa.unrc.edu.ar.) |
| Abstract | A new PGPR (plant growth promoting rhizobacteria) strain was isolated from soybean seeds and the bacterial mechanisms related to plant growth promotion were evaluated and characterized. Isolates were genotypically compared and identified by amplification of partial sequences of 16S DNAr as Bacillus amyloliquefaciens strain LL2012. Isolates were grown until exponential growth phase to evaluate the atmospheric nitrogen fixation, enzymatic activities, phosphate solubilization, siderophores and phytohormones production. LL2012 strain was able to grow and to produce high levels of auxin, gibberellins and salicylic acid in chemically defined medium. Co-inoculation of soybean plants with LL2012 strain and the natural symbiont (Bradyrhizobium japonicum) altered plant growth parameters and significantly improved nodulation. Our results show that the association of LL2012 with B. japonicum, enhanced the capacity of the latter to colonize plant roots and increase the number of nodules, which make the co-inoculation technique attractive for use in commercial inoculant formulations following proper field evaluation. |
| File Format | HTM / HTML |
| ISSN | 09445013 |
| Issue Number | 7-8 |
| Volume Number | 169 |
| e-ISSN | 16180623 |
| Journal | Microbiological Research |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-07-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Microbiology Discipline Environmental Health Agricultural Inoculants Physiology Bacillus Bradyrhizobium Plant Root Nodulation Soybeans Microbiology Classification Genetics Isolation & Purification Molecular Sequence Data Nitrogen Fixation Phylogeny Growth & Development Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Microbiology |
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