Phosphate solubilization potentials of soil Acinetobacter strains

Screening cabbage rhizosphere as a habitat for isolation of phosphate-solubilizing bacteria

“…Those bacteria that produced halo zones around colonies in PVK medium were able to produce organic acids in broth culture. This result is in accordance with Ogut et al (2010). This is also in agreement with Mehta et al (2001), Chen et al (2006), Ivanova et al (2006), Ponmurugan and Gopi (2012), and Karpagam and Nagalakshmi (2014) who recorded production of organic acids like butyric, malonic, succinic, malic, gluconic, acetic, glucenic, tartaric, gluconic, maleic, propionic, adipic and 2-ketogluconic acids by PSB in broth culture.…”

“…Hariprasad and Niranjana (2009) examined organic acid production by phosphate solubilizing bacteria isolated using thin layer chromatography and reported variety of organic acids such as citric acid, oxalic acid, lactic acid and gluconic acid. Ogut et al (2010) detected gluconic acid from Acinetobacter PSB strains. They reported that there was a linear regression between soluble P and gluconic acid concentration in the bacterial culture, and also that production of gluconic acid directly affected phosphate solubilization.…”

Determination of desirable properties of bacteria, fungi and their biofilm associated with rubber rhizosphere

“…However, there were no any solubilization halos in solid medium containing HERP and ERP sources. Similar observations with CaHPO 4 and Al(H 2 PO 4 ) 3 and FePO 4 .2H 2 O had been reported (Marra et al, 2012;Ogut et al, 2010 andQin et al, 2011). According to these studies, halos appeared in sparsely soluble CaHPO 4 and no halos appeared in water insoluble Al and FePO 4 .…”

Interactions between arbuscular mycorrhizal fungi and phosphate-solubilizing fungus (Mortierella sp.) and their effects on Kostelelzkya virginica growth and enzyme activities of rhizosphere and bulk soils at different salinities

“…As discussed before, the use of tricalcium phosphate for determining PSF or PSB has been criticized (Collavino et al 2010). The type of phosphate, the analytical procedure for determining the solubilized P, the incubation conditions, and medium are all important factors affecting P solubilization (Ogut et al 2010). Soils inoculated with Gm and Ms had significantly higher available P concentrations than soils only inoculated with Gm or Ms.…”