Related Experiment Video
Updated: Aug 10, 2026

Inoculation Strategies to Infect Plant Roots with Soil-Borne Microorganisms
Published on: March 1, 2022
Distribution of Symbiotic Genotypes in Rhizobium leguminosarum biovar viciae Populations Isolated Directly from Soils
Abstract:
The distribution of symbiotic (Sym) plasmid types across background genotypes was investigated in two field populations of Rhizobium leguminosarum biovar viciae isolated directly from soils. PCR-based methods were used to characterize the background genotypes and the Sym gene types. Identical Sym gene types were associated with a variable range of background genotypes, while the same background genotype could harbor distinct Sym gene types. Random distributions of Sym gene types in the background genotypes were observed in the two soil populations. These results suggest that Sym plasmid transfer is less restricted than previously thought on the basis of the analysis of strains isolated from legume nodules.
More Related Videos
20:01Single-plant, Sterile Microcosms for Nodulation and Growth of the Legume Plant Medicago truncatula with the Rhizobial Symbiont Sinorhizobium meliloti
Published on: October 1, 2013
09:55Exploring the Root Microbiome: Extracting Bacterial Community Data from the Soil, Rhizosphere, and Root Endosphere
Published on: May 2, 2018
Related Concept Videos
The Roles of Bacteria and Fungi in Plant Nutrition
Microbe-Plant Interactions
Microbial Interactions: Mutualism