Mechanism of Phosphate Solubilization and Physiological Functions of Phosphate-Solubilizing Microorganisms View Full Text


Ontology type: schema:Chapter     


Chapter Info

DATE

2014-07-31

AUTHORS

Md. Saghir Khan , Almas Zaidi , Ees Ahmad

ABSTRACT

Phosphorus (P) is the second important key plant nutrient after nitrogen. An adequate supply of P is therefore required for proper functioning and various metabolisms of plants. Majority of P in soils is fixed, and hence, plant available P is scarcely available despite the abundance of both inorganic and organic P forms in soils. A group of soil microorganisms capable of transforming insoluble P into soluble and plant accessible forms across different genera, collectively called phosphate-solubilizing microorganisms (PSM), have been found as best eco-friendly option for providing inexpensive P to plants. These organisms in addition to supplying soluble P to plants also facilitate the growth of plants by several other mechanisms, for instance, improving the uptake of nutrients and stimulating the production of some phytohormones. Even though several bacterial, fungal and actinomycetal strains have been identified as PSM, the mechanism by which they make P available to plants is poorly understood. This chapter focuses on the mechanism of P-solubilization and physiological functions of phosphate solubilizers in order to better understand the ecophysiology of PSM and consequently to gather knowledge for managing a sustainable environmental system. Conclusively, PSM are likely to serve as an efficient bio-fertilizer especially in areas deficient in P to increase the overall performance of crops. More... »

PAGES

31-62

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/978-3-319-08216-5_2

DOI

http://dx.doi.org/10.1007/978-3-319-08216-5_2

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1042449706


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