A normally harmless soil microorganism (bacteria) that colonizes the roots of certain plants. At least one company has incorporated the gene for a protein that is toxic to insects (taken from Bacillus thuringiensis) into a. Pseudomonasfluorescens. This was done in order to confer insect resistance to the plants the roots of which the genetically engineered Pseudomonas fluorescens has colonized.
Organism possessing many affinities with the preceding species, but saprophytic, and pathogenic to some plants and fish. Yellow pigment only; liquefies gelatin.