Corner Flows Induced by Surfactant-Producing Bacteria Bacillus subtilis and Pseudomonas fluorescens

Abstract

The spread of bacteria in soil is critical in soil biogeochemical cycles, soil and groundwater contamination, and the efficiency of soil-based bioremediation projects. However, the mechanistic understanding of bacterial spreading in soil remains incomplete due to a lack of direct observations.

Distinctive Bacteria Consortium of Rhizosphere and Surface Soil from Semi-Organic Potato Cultivation in Magelang, Indonesia

“…Various species of Bacillus produce hydrolysis enzymes that can limit the growth of other microorganisms [68], prevent nitrogen loss [70,71], increase the uptake of P and K by the roots [72], and produce promoting growth phytohormone [73]. For example, strains of B subtilis, which are abundant in the environment, produce antibiotic lipopeptides, including iturin [74], surfactants [75], and fengycin [76]. Enzymes of the lipopeptide group protect Fusarium oxysporum [75], and Rosellinia necatrix in horticultural crops [78], by inducing systemic resistance in the host plant or suppressing the growth of pathogenic fungi directly [79][80][81].…”

“…For example, strains of B subtilis, which are abundant in the environment, produce antibiotic lipopeptides, including iturin [74], surfactants [75], and fengycin [76]. Enzymes of the lipopeptide group protect Fusarium oxysporum [75], and Rosellinia necatrix in horticultural crops [78], by inducing systemic resistance in the host plant or suppressing the growth of pathogenic fungi directly [79][80][81]. This shows the potential use of indigenous Bacillus as a plant regulator and biocontrol of potato pathogens.…”