New Culture Medium Containing Ionic Concentrations of Nutrients Similar to Concentrations Found in the Soil Solution

Author:

Angle J. Scott1,McGrath Stephen P.1,Chaney Rufus L.1

Affiliation:

1. Department of Agronomy, University of Maryland, College Park, Maryland 20742; Soils and Agronomy Department, AFRC Institute of Arable, Crops Research, Rothamsted Experimental Station, Harpenden, Hertfordshire AL5 2JQ, United Kingdom2; and Environmental Chemistry Laboratory, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, Maryland 207053

Abstract

A new growth medium which closely approximates the composition of the soil solution is presented. This soil solution equivalent (SSE) medium contains the following components (millimolar): NO 3 , 2.5; NH 4 , 2.5; HPO 4 , 0.005; Na, 2.5; Ca, 4.0; Mg, 2.0; K, 0.503; Cl, 4.0; SO 4 , 5.0; ethylenediamine-di( o -hydroxyphenylacetic acid), 0.02; and MES [2-( N -morpholino)ethanesulfonic acid] (to maintain the pH at 6.0), 10, plus 0.1% arabinose. The advantages of the SSE medium are discussed.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

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