Which microbes help solubilize fixed soil phosphorus (P)?

• P solubilizing microorganisms (PSMs)play crucial roles in converting fixed soil P into forms that plants can readily absorb. Here's a breakdown of their functions:

• P solubilizing microorganisms (PSMs):
-Organic acid production: PSMs release organic acids like gluconic acid and citric acid that chelate cations bound to P, making it more soluble.
-Enzymatic activity: Some PSMs produce enzymes like phosphatases that directly break down organic P compounds into plant-available forms.

✏Examples of PSMs include:
-Bacteria: Pseudomonas, Bacillus, Rhizobium
-Fungi: Aspergillus, Penicillium
-Actinomycetes: Streptomyces