Number of sequences related to genera identified by16S rRNA gene pyrosequencing previously found to include PGPRs.

Nucleotide sequences (319 bp) obtained from pyrosequencing using barcodes was statistically analyzed. Sequences that showed >97% similarity with previously reported PGPR genera were grouped. Letter ‘a’ represents nitrogen fixing genera, ‘b’ represents IAA producing genera and ‘c’ represents phosphate solubilizing bacterial genera [18], [19], [20], [21], [42], [43], [44], [46], [47], [51], [52], [53], [54], [55], [56], [57], [58], [59], Number of sequences related to genera identified by16S rRNA gene pyrosequencing previously found to include PGPRs.