PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 30343230-1 2019 Mesotrione, an herbicide increasingly found in aquatic systems due to its increased application frequency in corn fields, is an inhibitor of the p-hydroxyphenylpyruvate dioxygenase (HPPD), a key enzyme for plastoquinone-9, alpha-tocopherol and indirectly for carotenoid biosynthesis. Carotenoids 259-269 4-hydroxyphenylpyruvate dioxygenase 1 Zea mays 182-186