ABSTRACT
While much focus has been placed on the use of fluorescent pseudomonads for the control of soil-borne diseases, strains of these bacteria have also been used for control of plant pathogens in the phyllosphere and weeds (O ’Sullivan and O ’Gara, 1992; Cook, 2000; Duijff and Defago, 2000; Nautiyal et al., 2004) and as transplant ammendments (Kokalis-Burrelle, 2006). This chapter, however, focuses, primarily on examples of their introduction into the rhizosphere as the preponderance o f studies have been centered around the use of fluorescent Pseudomonas spp. for the control of soil-borne plant pathogens (Nautiyal et al., 2002). Also, ways and means by which the population of introduced Pseudomonas spp. can be manipulated ecologically and genetically in the rhizosphere/soil environment are discussed.
