biotypes resistant to current herbicides. Consequently, new enzymes are always desired as
targets for herbicide discovery. 4-Hydroxyphenylpyruvate dioxygenase (HPPD, EC 1.13.
11.27) is an enzyme engaged in photosynthetic activity and catalyzes the transformation of 4-
hydroxyphenylpyruvic acid (HPPA) into homogentisic acid (HGA). HPPD inhibitors constitute
a promising area of discovery and development of innovative herbicides with some …