Isolation and characterization of halotolerant phosphate-solubilizing microorganisms from saline soils.

ABSTRACT: Halotolerant phosphate-solubilizing microorganisms (PSMs) capable of producing plant-growth-promoting traits were grown on salt medium containing Ca₃(PO₄)₂ or egg yolk. The number of colonies on plates with Ca₃(PO₄)₂ was higher than that on plates with egg yolk. Further, a total of 42 PSM isolates were purified. The majority were Bacillus spp., while one Providencia rettgeri strain was confirmed, for the first time, as a PSM. All PSMs had a phosphate-solubilizing index (PSI) between 1.1 and 2.58 and a strong capacity for dissolving calcium phosphate between 2.25 and 442 mg·L^-1. In contrast, these PSMs were less effective when dissolving aluminum phosphate, ferric phosphate and lecithin. Isolates were

SUBMITTER: Jiang H 

PROVIDER: S-EPMC6204131 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature