Abstract
We released genetically modified Pseudomonas putida WCS358r into the rhizospheres of wheat plants. The
two genetically modified derivatives, genetically modified microorganism (GMM) 2 and GMM 8, carried the
phz biosynthetic gene locus of strain P. fluorescens 2-79 and constitutively produced the antifungal compound
phenazine-1-carboxylic acid (PCA). In the springs of 1997 and 1998
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