PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 222719-5 1979 Ethylene generation was shown to be inhibited by superoxide dismutase, catalase, and scavengers of OH.. Of the cells examined, PMN generated the most ethylene from methional, exhibiting a fourfold increase during phagocytosis. ethylene 0-8 catalase Rattus norvegicus 71-79