Full TGIF Record # 71216
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Web URL(s):http://www.tandfonline.com/doi/pdf/10.1080/01904169809365579
    Last checked: 10/13/2015
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Publication Type:
i
Report
Author(s):Meyer, Michael C.; McLendon, Terry; Price, David
Author Affiliation:Meyer: Center for Ecological Risk Assessment and Management, Department of Fishery and Wildlife Biology, Colorado State University, Ft. Collins, CO; McLendon: Department of BIological Sciences, University of Texas-El Paso, El Paso, TX; Price: United States Army Construction Engineering Research Laboratories, Champaign, IL
Title:Evidence of depleted uranium-induced hormesis and differential plant response in three grasses
Source:Journal of Plant Nutrition. Vol. 21, No. 11, 1998, p. 2475-2484.
# of Pages:10
Publishing Information:New York: Marcel Dekker, Inc.
Keywords:TIC Keywords: Bouteloua dactyloides; Schizachyrium scoparium; Biomass; Radioactive pollution; Dry weight; Physiological responses
Abstract/Contents:"General plant response to depleted uranium (DU) was tested using three widespread range-grass species, Aristida purpurea Nutt. (purple threeawn), Buchloe dactyloides (Nutt.) Engelm. (buffalograss), and Schizachyrium scoparium (Michx.) Nash (little bluestem). Aboveground, belowground, and total biomass measures of these grasses were analyzed over the five different DU soil concentrations of 0, 50, 500, 5,000, and 25,000 mg kg⁻1. Differential plant response to DU was observed between the three grasses, with A. purpurea and B. dactyloides exhibiting a threshold-type response in which no changes in biomass occurred until the highest treatment level of 25,000 mg kg⁻1 was reached. Schizachyrium scoparium, however, demonstrated a large degree of growth stimulation, or hormesis, at the 50 and 500 mg kg⁻1 DU concentrations. Several possible mechanisms of this hormetic response are offered."
Language:English
References:33
Note:Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Meyer, M. C., T. McLendon, and D. Prince. 1998. Evidence of depleted uranium-induced hormesis and differential plant response in three grasses. J. Plant Nutr. 21(11):p. 2475-2484.
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http://www.tandfonline.com/doi/pdf/10.1080/01904169809365579
    Last checked: 10/13/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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