The use of Pseudomonas spp. as bacterial biocontrol agents to control plant diseases

Most Pseudomonas biocontrol strains are associated with the rhizosphere of plants, where they control soil pathogens by antibiosis or competition, and leaf via induced systemic resistance. Genome mining division vastly heterogeneous genus in phylogenomic (sub)groups has clarified relation between characteristics phylogeny. Based on their activity, come three types. A first type, represented P. chlororaphis, protegens, corrugata aeruginosa (sub)group strains, produces an arsenal secondary metabolites broad antimicrobial activity. The second type is found putida, fluorescens, koreensis, mandelii, gessardii (sub)group. spectrum properties these less diverse involves siderophores cyclic lipopeptides. third colonizes above-ground plant parts. Strains from this mainly belong to syringae group used postharvest pathogens. This chapter starts recent advances taxonomy a summary its most important traits. It then provides overview groups subgroups harboring strains. Examples well-characterized representative show links phylogeny, ecology concludes reviewing commercially-available