EXO GENES OF RHIZOBIUM RADIOBACTER 36 AND THEIR CHARACTERIZATION

Bacteria of Rhizobium genus are characterized with synthesis exopolysaccharides (EPS), which play a crucial role in cell defense in abiotic stress, such as salinity, drought, heavy metals exposure etc. [1, 2]. Production of EPS by Rhizobium are controlled by a set of specific genes, such as exo genes [2]. The exo genes are a set of genes responsible for the biosynthesis, polymerization, and export of exopolysaccharides. The specific genes can vary depending on the Rhizobium strain. As reported in our previous research [2], a gene-cluster consisting of exoK and exoM are responsible for EPS macromolecule formation in R. radiobacter.