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Table 1 rosR mutation affects symbiotic properties and EPS production of R. leguminosarum bv. trifolii 24.2. Defects are fully complemented by the wild-type rosR copy.

From: Rhizobium leguminosarum bv. trifolii rosR is required for interaction with clover, biofilm formation and adaptation to the environment

Strain/plasmid Nodule no. per planta Shoot weight (mg/plant)a EPS (mg/mg)b
   (fresh wt) (dry wt)  
Rt2440 5.1 ± 1.9 42.4 ± 11.4 4.3 ± 0.15 0.31 ± 0.03
Rt2441 6.2 ± 2.1 44.8 ± 10.2 4.9 ± 0.20 0.36 ± 0.04
Rt2472 4.9 ± 1.7 43.2 ± 7.7 4.2 ± 0.10 0.30 ± 0.03
Rt2440(pRC24) 12.3 ± 3.1 59.3 ± 12.5 6.1 ± 0.25 1.19 ± 0.07
Rt2441(pRC24) 12.5 ± 3.6 58.8 ± 10.2 6.0 ± 0.2 1.15 ± 0.05
Rt2472(pRC24) 12.7 ± 5.4 61.2 ± 14.2 6.2 ± 0.3 1.21 ± 0.06
Rt24.2 (wild type) 12.8 ± 2.9 62.8 ± 12.1 6.2 ± 0.25 0.97 ± 0.05
Uninoculated clover - 34.7 ± 6.4 3.8 ± 0.10 -
  1. a Plants were harvested 28 days after inoculation. Given values ( ± standard deviation) are averages of three independent experiments with 20 plants for each treatment.
  2. b - Exopolysaccharide (EPS) production (Glc equivalents in mg/mg of protein).