Effect of phenols and its metabolism on activity of cell wall-degrading enzymes produced by Pythium aphanidermatum
Chen Jie; Gao HongMin; Zhu YouGang; Wu YouSan
Acta Phytopathologica Sinica 26(2): 171-176
Phloroglucinol, pyrocatechol and vanillin affected growth and inhibited the activity of cell wall-degrading enzymes produced by P. aphanidermatum. Of the 3, vanillin was the most active in reducing pathogen growth. All the phenolics greatly inhibited the activity of 4 pectinases (PG, PMG, PGTE and PMTE). Vanillin was the most active against cell wall-degrading enzymes (PG, PMG and Cx). With increasing age of seedlings, peroxidase activity and lignification were enhanced.