北华大学学报：自然科学版2012，Vol.13Issue(2)：163-166,4.
水杨酸对大丽花多酚氧化酶的影响
Effects of Salicylic Acid on Polyphenol Oxidase in Dahlia pinnata
任桂红 1朱梅 1孙海明 1赵桂云 1侯宇 1刘宝岩1
作者信息
- 1. 北华大学化学与生物学院,吉林吉林132033
- 折叠
摘要
Abstract
Objective To explore how to improve the disease resistance of Dahlia pinnata. Method The salicylic acid （SA） was sprayed on the Dahlia pinnata and then,the effect of SA on Poly Phenol Oxidase （PPO） activity with the change of the time and at different concentrations of SA was analyzed to provide an experimental evidence for the study on the disease resistance of Dahlia pinnata. Results The optimum pH value for this variety of Dahlia pinnata was 5.8, SA had certain effect on PPO activity, SA less than 0.05 mmol/L had no significant effect on PPO activity, PPO activity could be promoted by 1 - 2 mmol/L SA and the PPO activity could reach a peak value after 24 hours ,while 3mmol/L SA exerted significant inhibitory effect on PPO activity. After being treated respectively with above concentrations of SA, PPO activity restored gradually to the level before the treatment after 48 - 60 h. Conclusion After the treatment of Dahlia pinnata with exogenous SA, PPO activity in Dahlia pinnata could be induced within a certain range of time.关键词
大丽花/多酚氧化酶（PPO）/水杨酸（SA）Key words
Dahlia pinnata/Polyphenol Oxidase ( PPO )/Salicylic acid (SA)分类
生物学引用本文复制引用
任桂红,朱梅,孙海明,赵桂云,侯宇,刘宝岩..水杨酸对大丽花多酚氧化酶的影响[J].北华大学学报：自然科学版,2012,13(2):163-166,4.
