ARS | Publication request: DEVELOPMENT OF P-HYPERACCUMULATOR PLANT STRATEGIES TO REMEDIATE SOILS WITH EXCESS P CONCENTRATIONS

Submitted to: Critical Reviews in Plant Sciences
Publication Type: Review Article
Publication Acceptance Date: February 20, 2002
Publication Date: October 1, 2002
Citation: NOVAK, J.M., CHAN, A.S.k. DEVELOPMENT OF P-HYPERACCUMULATOR PLANT STRATEGIES TO REMEDIATE SOILS WITH EXCESS P CONCENTRATIONS. CRITICAL REVIEWS IN PLANT SCIENCES. 2002. V. 21. P. 493-509.

Technical Abstract: The US livestock industry has evolved towards more confined production. This practice has resulted in more concentration of manure nutrients within a relatively small geographic area. As a result of this trend, soil phosphorus (P) concentrations are higher than the P assimilative capacity of many crops. This has prompted water quality concerns because incidental transport of P from soils with excess P can contribute to water quality deterioration. We propose that excess soil P concentrations can be reduced to lower agronomic values by using P hyperaccumulator plants or growing plants that have been modified to increase their P uptake characteristics. Traditional breeding and/or transgenic techniques may be used to modify plant properties (roots architecture, P storage, secretion of organic acids) involved with P uptake, storage and acquisition.