The Plant Growth Promoting Rhizobacteria (PGPR) organisms provide protection to plants against diseases by suppressing deleterious and pathogenic microorganisms producing of hormones, hydrogen cyanide (HCN), various beneficial volatile compounds, siderophores, bacteriocins etc
and also act as a bio fertilizer like P solublization, N fixation, IAA production etcâ€¦,
present research mainly concentrated on exploration of Pseudomonas fluorescens
PGP activities like SA, IAA, Î² 1, 3 glucanase production and P solublization.
Around fifty one isolates of Pseudomonas fluorescens
and ten Bacillus subtilis
isolates were isolated from the rhizosphere soil
of Aloe vera
, among fifty one Pseudomonas,
Pf 32 and followed by Pf 45 produced maximum quantity of salicylic acid (SA), Pf 45 recorded maximum indole acetic acid (IAA) production. The isolate Pf 32 solubilized high phosphorous in the sperberâ€™s hydroxyl apatite medium and higher amount of Î² 1, 3 glucanase production.