Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
2025595 | Soil Biology and Biochemistry | 2017 | 4 Pages |
Abstract
Competition for nodulation is a complex problem where bacterial adhesins, which are required for root colonization, may play a role. However, the possible influence of adhesins on competitiveness was scarcely studied. In this work, the Rhizobium leguminosarum bv trifolii adhesion protein RapA1 was overproduced from a pHC60-derived plasmid and expressed in R200 strain. When an overproducing strain and a control-carrying empty vector were co-inoculated on clover plants, a positive effect of RapA1 on competition for nodule occupation was observed. Therefore, optimization of RapA1 expression may be considered for improvement of rhizobial competitiveness.
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Authors
Elías J. Mongiardini, Julieta Pérez-Giménez, M. Julia Althabegoiti, Julieta Covelli, J. Ignacio Quelas, Silvina L. López-García, Aníbal R. Lodeiro,