Commercial mycorrhizal inoculants and Pseudomonas fluorescens isolates CHA0
and IP10 have been shown to promote microplant growth during and after wea
ning. The fluorescent pseudomonads also protected against the soil-borne po
tato pathogen Rhizoctonia solani. The potential benefits of inoculation in
vitro with mycorrhizal fungi and helper/biocontrol bacteria are discussed.