Abstract
Exopolysaccharides (EPS) producing Pseudomonas aeruginosa PF23EPS+ and its mutant PF23EPS− (EPS deficient strain) taken from authors collection were monitored for salicylic acid (SA) production. Strain PF23EPS+ displayed SA production and biocontrol against phytopathogen Macrophomina phaseolina up to 500 mM NaCl. However, mutant was defective in EPS production and displayed significant reduction in SA production under non-stress conditions. The mutant neither displayed SA production nor biocontrol against phytopathogen at diverse salt concentrations, authenticating the relation of SA in antagonism. Pot and field trials were conducted in salinized soil infested with M. phaseolina taking sunflower as test crop. Results of field study were in agreement with the findings of pot study. The combination of strain PF23EPS+ and extracted SA obtained from it brought significant enhancement in plant growth parameters and reduction of disease incidence under saline conditions. The study reports the application of plant growth promoting (PGP) microbe P. aeruginosa PF23 and its metabolite (SA) for enhancing growth of sunflower crop in salinized soil infested with M. phaseolina.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
