A Siderophore Peptide Synthetase Gene from Plant-growth-promoting Pseudomonas putida WCS358

Biochemical, Genetic, and Zoosporicidal Properties of Cyclic Lipopeptide Surfactants Produced by Pseudomonas fluorescens

“…3 and 4). Peptide synthetases are multifunctional enzymes involved in the nonribosomal synthesis of diverse and often complex metabolites, including antibiotics, siderophores, and biosurfactants (11,21,28,30,42). These enzymes are composed of modules, which contain all enzymatic activities to incorporate one constituent into the final compound.…”

Plant growth regulator interactions results enhancement of antioxidant enzymes inCatharanthus roseus

“…Nitrogenfixing rhizobia in legume root nodules and vesiculararbuscular mycorrhizal fungi in roots have been shown to activate plant host defenses when the symbiotic interact (Nurnberger and Lipka 2005). Plants possess sensitive mechanisms to perceive both fungi and bacteria through conserved components that are specific and act as elicitors (Devescovi et al 2001). During compatible plant pathogen interactions and effective symbioses, the microorganisms actively suppress defensive activities in the host (Cunha et al 2006).…”

“…During compatible plant pathogen interactions and effective symbioses, the microorganisms actively suppress defensive activities in the host (Cunha et al 2006). The relationship between root-colonizing, resistance-inducing PGPR and their hosts seems substantially less intimate than with either rhizobia or mycorrhizal fungi, but the idea that PGPR may at the same time trigger and suppress defense reactions in the host, deserves consideration (Devescovi et al 2001). The treatment with paclobutrazol, GA and P. fluorescens significantly increased the CAT activity in the leaves, stem and roots of C. roseus.…”

Identification of macrophage induced genes of Corynebacterium pseudotuberculosis by differential fluorescence induction

“…There are relatively few reports of regulated expression of peptide synthetases. The production of a number of non-ribosomally synthesised siderophores has been shown to be iron regulated [39][40][41] suggesting that expression of the relevant peptide synthetases may be occurring. The role of siderophores in iron scavenging is likely to be critical for some bacteria and these genes could then be considered to be virulence determinants.…”