Fernandes Júnior PI, Almeida JP da S, Passos SR, Oliveira PJ de, Rumjanek NG, Xavier GR. Production and rheological behavior of exopolysaccharide synthesized by pigeonpea rhizobia isolates. PAB. 2011;45(12):1465-1471. doi:10.1590/S1678-3921.pab2010.v45.8210