When phylotypes were grouped according to individual metabolic activities, ˛-Proteobacteria were predominant among the nitrogen-fixing (53.7%) and kanamycin resistant (51.2%) bacteria,while -Proteobacteria constituted higher proportion of lipase
positive (55.9%), phosphate-solubilizing (71.4%), and siderophore
(51.7%) and IAA(46.7%) producing bacteria (Fig. 1).