Abstract
Phosphorus (P) is considered the ultimate limiting nutrient for plants because of its form as insoluble complexes. To address P deficiency, different organic and inorganic fertilizers are added to soils. Inorganic P instantly become unavailable by forming complexes with metal ions and excess P-fertilizers application also leads to water eutrophication of P. Phytic Acid (PA; constitutes 15-50% of total P depending on soil types) as a component of organic P also form stable complexes and its natural degradation is almost impossible. Therefore, role of P solubilizing microbes in rhizosphere become important for P cycling. Several rhizospheric bacterial and fungal species have been reported to play important role in P solubilization in soil [1]. Based on several studies on diversity of P solubilizing microbes and enzymes in varying agro-ecosystems, soil P availability and its uptake by plants is mainly attributed to microbial phosphatases and plant exudates. Phytase producing microbes have gained recent interest due to their plant growth promoting abilities and P pollution management applications [2,3].
Citation
: Kumar V, Yadav AN, Saxena A, Sangwan P and Dhaliwal HS. Unravelling Rhizospheric Diversity and Potential of Phytase Producing Microbes. SM J Biol. 2016; 2(1): 1009.