Monday, November 14, 2016, 11:00 am — John Dunn Seminar Room, Bldg. 463
The phytohormone salicylic acid (SA) plays essential roles in biotic and abiotic responses, plant development and leaf senescence. Hydroxylation is a biologically relevant chemical modification of SA. By mediating SA catabolism, it has been suggested to maintain SA homeostasis in Arabidopsis. In my talk, I will present our characterization of salicylic acid 3 or 5-hydroxylase (S3H or S5H) responsible for 2,3- or 2,5-dihydroxybenzoic acid (2,3-DHBA or 2,5-DHBA) in Arabidopsis and rice (Oryza sativa). Additionally, I will present our discovery on multiple regulations of S3H or S5H enzyme activities at transcriptional or protein level which control the SA accumulation and SA homeostasis in plant development, defense responses and leaf senescence.
Hosted by: Dr. Chang-Jun Liu
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