关键词: 建泽泻, 川泽泻, 有效积温, 抗氧化酶, 功效物质

Abstract: The variation range and distribution pattern of effective accumulated temperature in the field growth period were analyzed based on the meteorological data of Jian Zexie (Alisma orientale) and Chuan Zexie (A. plantago-aquatica) in Jian’ou, Fujian Province and Pengshan, Sichuan Province in recent 40 years. We simulated the changes of effective accumulated temperature in two genuine producing areas, and compared the effects of effective accumulated temperature on the activities of antioxidant enzymes and the accumulation of functional substances in Jian Zexie and Chuan Zexie. The results showed that: (1) The effective accumulated temperature range of Jian Zexie and Chuan Zexie were 1044–1340 ℃·d and 602–962 ℃·d, respectively, and there were significant differences in the effective accumulated temperature required at different growth stages; (2) Under the condition of effective accumulated temperature in genuine producing areas, Jian Zexie and Chuan Zexie were more resistant to oxidation and had higher alisol B 23-acetate content in tubers, and the rapid accumulation period appeared on the 105–120 d, while the accumulation of 23-acetyl alisol C in two types of Jian Zexie and Chuan Zexie was opposite, and the content of 23-acetyl alisol C in genuine producing areas was low. These results showed that the effective accumulated temperature could significantly affect the antioxidant capacity and the accumulation of functional substances of Jian Zexie and Chuan Zexie. This study provided a theoretical basis for investigating the genuine causes of Jian Zexie and Chuan Zexie and standardized cultivation and management.

Key words: Jian Zexie, Chuan Zexie, effective accumulated temperature, antioxidant enzyme, functional substance