title: Photoperiod effects on hydroxyindole-O-methyltransferase activity in the pineal gland of chinook salmon (Oncorhynchus tshawytscha).
mesh_terms: D000121:Acetylserotonin O-Methyltransferase / Q000378:metabolism*; D000818:Animals; D008027:Light; D008780:Methyltransferases / Q000378:metabolism*; D010507:Periodicity; D010870:Pineal Gland / Q000201:enzymology / Q000528:radiation effects*; D011506:Proteins / Q000378:metabolism; D012474:Salmon / Q000378:metabolism*
chemical_list: D011506:Proteins; D008780:Methyltransferases; D000121:Acetylserotonin O-Methyltransferase