Isolation and Molecular Characterization of Potential Plant Growth Promoting Bacillus cereus GGBSTD1 and Pseudomonas spp. GGBSTD3 from Vermisources

Table 2

The phosphate solubilizing activity, phytohormone (IAA) production, and siderophores production of the bacterial isolates.

Name of the; organism	Phosphate solubilization index (SI)	IAA production; (g/mL)^a	Siderophores production^b
Bacillus spp.	38.55	24.2	+++
Alcaligenes spp.	29.30	14.7	−
Erwinia spp.	28.90	11.3	+
Serratia spp.	30.45	16.8	++
Pseudomonas spp.	35.22	19.6	+++

Indole acetic acid production in culture media supplemented with tryptophan (5 g/mL) after 5 days.
^bIn vitro siderophores production: − represents the absence of siderophores production and +++ represents >10 mm wide yellow-orange zone.