Abstract
Methyl gallate (MG) strongly inhibited effect on the plant-pathogenic bacterium Ralstonia solanacearum. Observations using a scanning electron microscope showed damage by MG to the cell wall structure of the pathogen, morphological changes and plasmoptysis. The results of biochemical analysis showed that MG exhibited substantial inhibitory effects on the protein synthesis and succinate dehydrogenase (SDH) activity in the pathogen. After treatment with 20 μg/mL MG, R. solanacearum could counteract the inhibition of MG and regain its growth via stress responses such as elevated Na+K+-ATPase activity and production of a large quantity of exopolysaccharides. However, the pathogen lost its pathogenicity, which can be attributed to suppression of extracellular enzymes such as pectinase and cellulase. Moreover, MG at higher concentrations exhibited its bactericidal effect by inhibiting the respiration of bacteria which in-turn interferes their energy metabolism.
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.
