Metabolites of Pseudomonas involved in the biocontrol of plant disease

Use of Biocontrol Agents: A Potential Alternative to Fungicides for Fusarium Wilt Management of Banana

“…Lowest percentage (31.33%) of disease affected area in leaves was recorded in the plants sucker treated and soil drenched with biocontrol agents followed by only soil application of both bioagents (33.19 %), whereas control plants showed highest percentage of (44.90 %) disease affected area in leaves. Dowling and O'Gara (1994) also obtained similar results where they could obtain antifungal metabolites from P. fluorescens which caused inhibition of fungal cell multiplication of the pathogenic fungi. Minimum mean percentage (33.47 %) of dead leaves in a plant was recorded in plants treated with biocontrol agents as both sucker treatment and soil application followed by only soil application of both bioagents (36.63 %) where as control plants recorded maximum (54.53%) value of the character (Table 2).…”

Analysis of Pseudomonas fluorescens F113 genes implicated in flagellar filament synthesis and their role in competitive root colonization

“…The soil-borne fluorescent pseudomonads are used as biocontrol inoculants because of their ability to produce some antifungal metabolites (Dowling & O'Gara, 1994;Walsh et al, 2001). Other applications of pseudomonads include soil biofertilization and rhizoremediation (Ramos et al, 1991; Brazil et al, 1995; Höflich et al, 1995;Yee et al, 1998).…”

“…Many bacterial genes and traits have been shown to be involved in plant-root colonization (Lugtenberg & Dekkers, 1999;Rainey, 1999;Lugtenberg et al, 2001). However, not only colonization but also the pseudomonads' ability to compete with the indigenous microbial population are essential to improve their biotechnological applications in the rhizosphere environment.The soil-borne fluorescent pseudomonads are used as biocontrol inoculants because of their ability to produce some antifungal metabolites (Dowling & O'Gara, 1994;Walsh et al, 2001). Other applications of pseudomonads include soil biofertilization and rhizoremediation (Ramos et al, 1991; Brazil et al, 1995; Höflich et al, 1995;Yee et al, 1998).…”

Management of Plant Pathogens with Microorganisms

“…Understanding root-microbe communication [30,51], as affected by genetic [66] and environmental [62] determinants in spatial [30] and temporal [70] contexts, will significantly contribute to improve the efficacy of these biocontrol agents. Once biocontrol agents establish on the site, the mechanism of antagonism might be competition for nutrients, space, siderophore production [41], antibiosis [18], production of hydrolytic enzymes or other active substances.…”