TABLE 1

Bacterial strains used in this study

Sinorhizobium meliloti strainRelevant characteristicsaSource or reference(s)
Sm1021Wild-type derivative of SU47; Strepr45
chvID52E strain (EC220)Succinoglycan gain-of-function allele in Sm1021 wild-type background, chvlD52E-chvI+; Strepr Hygr25
chvIK214T strain (DW570)Succinoglycan partial-loss-of-function allele, chvIK214T; Strepr Neor46
exoS96 strainSm1021 exoS96::Tn5 Strepr Neor26
exoY strainSm1021 exoY210::Tn5 Strepr Neor47
exoA strainSm1021 exoA32::Tn233 Strepr Gentr7
exoS96-exoA strainexoS96 exoA double mutant; Strepr Gentr NeorThis study
chvID52E-exoY strainchvlD52E exoY double mutant; Strepr HygrThis study
exoV strainSm1021 exoV::Tn5 (exoV2) Strepr Neor37
exoH strainSm1021 exoH::Tn5 Strepr Neor34, 48
exoZ strainSm1021 exoZ::Tn5 Strepr Neor Rm843148
  • a Strepr, streptomycin resistant; Neor, neomycin resistant; Gentr, gentamycin resistant; Hygr, hygromycin resistant.