RHIZOSPHERE MICROORGANISMS AND PHOSPHORUS AVAILABILITY FOR PLANTS | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 47, Issue 2, March 2016, Pages 635-646 | ||
| Authors | ||
| N. S. Ali; N. H. Majeed | ||
| Abstract | ||
| Phosphorus (P) is one of the major plant nutrients that directly or indirectly affect all biological processes. It is a key component of energy metabolism, and biosynthesis of nucleic acids and membranes. Phosphorus deficiency is considered to be one of the major limitations for crop production particularly in low-input agriculture systems around the world and nearly 80% of applied mineral P may be retained in the soil. Roots provide an interface for P moving from one living system—the soil—into another living system—the plant. Microbial processes in soil are important for the distribution of P between various inorganic and organic P fractions and subsequently for the potential availability of phosphate for plant absorption. These processes are predominantly manifest within the rhizosphere where readily-available C substrates are most abundant. So this review, focus on the contribution of soil microorganisms on the plant P nutrition through their capacity to increase the availability of soil P and its subsequent uptake by plants. | ||
| Keywords | ||
| Availability; Rhizosphere; PSM; Mycorhizea | ||
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