Singh, AAgarwala, RKashyap, L RKumar, S1988-10-012009-05-271988-10-012009-05-271988-10-01Singh A, Agarwala R, Kashyap LR, Kumar S. Behaviour of expression of nif HDK and fix ABCX promoters of Rhizobium meliloti in R. leguminosarum. Indian Journal of Biochemistry & Biophysics. 1988 Oct; 25(5): 389-91http://imsear.searo.who.int/handle/123456789/27226engDNA, Bacterial --geneticsPromoter Regions, GeneticRhizobium --geneticsSpecies SpecificityComparative Study