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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Mongiardini, Elías J. Parisi, Gustavo D. Quelas, Juan I. Lodeiro, Aníbal R. |
| Description | Country affiliation: Argentina Author Affiliation: Mongiardini EJ ( Laboratorio de Interacciones entre Rizobios y Soja (LIRyS), IBBM-Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata y CCT La Plata-CONICET, Calles 47 y 115, B1900AJL La Plata, Argentina.); Parisi GD ( Unidad de Bioinformática Estructural, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, B1876BXD Bernal, Argentina.); Quelas JI ( Laboratorio de Interacciones entre Rizobios y Soja (LIRyS), IBBM-Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata y CCT La Plata-CONICET, Calles 47 y 115, B1900AJL La Plata, Argentina.); Lodeiro AR ( Laboratorio de Interacciones entre Rizobios y Soja (LIRyS), IBBM-Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata y CCT La Plata-CONICET, Calles 47 y 115, B1900AJL La Plata, Argentina. Electronic address: lodeiro@biol.unlp.edu.ar.) |
| Abstract | Adhesion of symbiotic bacteria to host plants is an essential early step of the infection process that leads to the beneficial interaction. In the Bradyrhizobium diazoefficiens-soybean symbiosis few molecular determinants of adhesion are known. Here we identified the tight-adhesion gene products TadGEF in the open-reading frames blr3941-blr3943 of the B. diazoefficiens USDA 110 complete genomic sequence. Predicted structure of TadG indicates a transmembrane domain and two extracytosolic domains, from which the C-terminal has an integrin fold. TadE and TadF are also predicted as bearing transmembrane segments. Mutants in tadG or the small cluster tadGEF were impaired in adhesion to soybean roots, and the root infection was delayed. However, nodule histology was not compromised by the mutations, indicating that these effects were restricted to the earliest contact of the B. diazoefficiens and root surfaces. Knowledge of preinfection determinants is important for development of inoculants that are applied to soybean crops worldwide. |
| File Format | HTM / HTML |
| ISSN | 09445013 |
| Volume Number | 182 |
| e-ISSN | 16180623 |
| Journal | Microbiological Research |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-01-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Microbiology Discipline Environmental Health Bacterial Adhesion Bacterial Proteins Metabolism Bradyrhizobium Physiology Plant Roots Microbiology Soybeans Amino Acid Sequence Chemistry Genetics Classification Molecular Sequence Data Phylogeny Sequence Alignment Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Microbiology |
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