Prospects for using soil microorganisms to improve the acquisition of phosphorus by plants

By A. Richardson. 2001

903 citations recorded by the source corpus.

Microorganisms play an important role in the acquisition and transfer of nutrients in soil. For phosphorus (P), soil microorganisms are involved in a range of processes that affect P transformation and thus influence the subsequent availability of P (as phosphate) to plant roots. In particular, microorganisms can solubilize and mineralize P from inorganic and organic pools of total soil P. In addition, microorganisms may effectively increase the surface area of roots. Also, the microbial biomass itself contains a large pool of immobilized P that potentially is available to plants. Given that most soils are deficient in plant-available P and that P fertilizer represents a significant cost for agricultural production throughout the world, there is interest in using soil microorganisms as inoculants to mobilize P from poorly available sources in soil. Although potential clearly exists for developing such inoculants, their widespread application remains limited by a poor understanding of microbial ecology and population dynamics in soil, and by inconsistent performance over a range of environments. Furthermore, promotion of growth of plants in soil, as a consequence of microbial inoculation, may not necessarily be associated with characteristics such as P solubilization, which are manifest under laboratory conditions.

Subfields: Plant Science, Soil Science

View Paper: https://www.semanticscholar.org/paper/08162f0e438704352ed89745262f76c90396b342

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Plant Science

In Soil Science

Citations in the corpus

MECHANISMS AND PRACTICAL CONSIDERATIONS INVOLVED IN PLANT GROWTH PROMOTION BY RHIZOBACTERIA (2010, background): “It is now clear from many studies that evaluation and ranking of Psolubilizing bacteria under laboratory conditions do not necessarily correspond to the efficacy of the PGPR for enhancing plant P uptake under field conditions (Richardson, 2001; Rengel, 2008).”
Plant Growth-Promoting Effects of Diazotrophs in the Rhizosphere (2003, background): “Frequently, solubilization of P has been postulated as a possible mechanism of plant growth promotion by PGPR (for a recent review see Rodríguez and Fraga, 1999; Richardson, 2001).”
Root traits as tools for creating phosphorus efficient crop varieties (2004, background): “The various root-induced chemical (Hinsinger, 1998) and biological processes (Richardson, 2001) in relation to plants’ ability to mobilise nutrients have been critically reviewed.”
Soil beneficial bacteria and their role in plant growth promotion: a review (2010, background): “(de Freitas et al. 1997; Richardson 2001; Banerjee and Yasmin 2002); (6) enhanced resistance to drought (Alvarez et al.”
Microbial phytase activity and their role in organic P mineralization (2015, background): “However, activity of microorganisms is predominantly mediated by hydrolysis of organic P in the soil (Richardson 2001).”
Extracellular enzymes in terrestrial, freshwater, and marine environments: perspectives on system variability and common research needs (2013, background): “In particular, significant root-associated phosphatase production (Tarafdar and Claassen 1988; Dinkelaker and Marschner 1992; Richardson 2001; Araújo et al. 2008) and chitinase activities (Lam and Ng 2001; Faugeron et al.”
Recent advances in removing phosphorus from wastewater and its future use as fertilizer (1997-2003). (2004, background): “We propose that precipitated phosphate recovered from wastewater, together with common PSB and PSF, ARTICLE IN PRESS L.E. de-Bashan, Y. Bashan / Water Research 38 (2004) 4222–42464240 be used as a fertilizer.”
Plant Growth-Promoting Bacteria: Mechanisms and Applications (2012, background): “us, solubilization and mineralization of phosphorus by phosphate-solubilizing bacteria is an important trait in PGPB as well as in plant growth-promoting fungi such as mychorrizae [37, 38].”
Simultaneous phosphate solubilization potential and antifungal activity of new fluorescent pseudomonad strains, Pseudomonasaeruginosa, P. plecoglossicida and P. mosselii (2009, background): “phorous to plant available forms (Kim et al. 1998; Richardson 2001).”
Describing Paenibacillus mucilaginosus strain N3 as an efficient plant growth promoting rhizobacteria (PGPR) (2015, background): “…as indole acetic acid (IAA), gibberellins, and cytokinins (Dey, Pal, Bhatt, & Chauhan, 2004; Patten & Glick, 1996) along with asymbiotic nitrogen fixation (Kennedy et al., 1997); and solubilization of phosphates (Banerjee & Yasmin, 2002; de Freitas, Banerjee, & Germida, 1997; Richardson, 2001).”
Isolation and characterization of phosphate-solubilizing bacteria from walnut and their effect on growth and phosphorus mobilization (2011, background): “Generally, the available inorganic P fraction was observed absorbed to the surface of soil minerals or occurred as poorly soluble precipitates of FePO4 and/or AlPO4 in acid soils (Richardson 2001).”
Isolation and characterization of phosphate solubilizing rhizobacteria to improve plant health of tomato (2009, methodology): “However, organic matter, on the other hand, is an important reservoir of immobilized phosphate that accounts for 20–80% of soil phosphorous (Richardson 2001) and only a small portion (∼0.”
Microbial co-operation in the rhizosphere. (2005, background): “Many rhizobacteria (and rhizofungi) are able to solubilize sparingly soluble phosphates, usually by releasing chelating organic acids (Kucey et al., 1989; Whitelaw, 2000; Richardson, 2001; Vessey et al., 2004).”
The Effect of Plant Growth Promoting Rhizobacteria on Barley Seedling Growth, Nutrient Uptake, Some Soil Properties, and Bacterial Counts (2007, background): “PGPR inoculation may effectively increase the surface area of roots (Richardson, 2001) and root weight (Çakmakçı et al., 2007).”