الفهرس | Only 14 pages are availabe for public view |
Abstract Phenylalanine ammonia lyase (PAL) is a key enzyme in the SYnthesis of phenolic compounds in plants. This investigation aims to study its structure, characterization and effect of light and treatment with inhibitors on its activity. The inhibitors chosen were DCMU, streptomycine (STM) and chloramphenicol (CAP). Two plants were selected for the investigation; faba bean (Viciafaba L.) and maize (Zea mays L.). The seeds were germinated in petri- dishes and then transferred to pure sand. Light treatment started with the 4-day-old seedling stage and continued throughout the whole experimental period. Other seeds were soaked in STM or CAP for two days then grown in sand and irrigated with water under the normal light/dark cycle. For DCMU, the seeds were irrigated with the inhibitor solution starting from the fourth day till the end of experiment (14th day. |