Abstract
Two strains of rice-associated pseudomonads Pseudomonas fluorescens 7-14 and P. putida V14i caused an induced systemic resistance (ISR) in three cultivars of rice. ISR response coincided with increased levels of salicylic acid and biological suppression (25%) of rice blast disease. When the strains of the bacteria with lacZY molecular marker tracking system were applied to rice seeds as a seed-coat, they persisted on rice roots for entire duration of the crop (110 days) but migrated to the rice shoot only up to 14 to 16 days. Bacteria applied as a root-dip did not migrate to aerial parts of the rice plant. Bacteria infiltrated into the rice stem survived for 20 days after the treatment and were not detected on the surface of the stem. It is suggested that the ISR triggered by these bacteria which were spatially separated from the rice blast pathogen, is an important mechanism for the biological suppression of rice blast.
Sign-in/Register to access full text options 
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.
