Effect of Microorganisms on the Formation and Activity of Proteoid Roots of <i>Lupinus albus</i> L

Abstract

Proteoid roots of Lupinus albus can develop under aseptic conditions, but many more are produced when microorganisms are present. The roots appear to be the source of the hydrogen ions. reductants and chelating agents observed in their vicinity. The activity of these secretions is reduced in the presence of microorganisms which presumably use them as sources of energy.