Effects of High Temperature and Air Humidity Stress on Antioxidant System and Antioxidant Activity Differences of Hot Pepper Varieties

doi:10.7668/hbnxb.2008.01.018

Abstract

Abstract: The experiment was carried out in climate chambers to investigate the effectsof high temperature and air hu2midity on reduced glutathione(GSH)content,ascorbic acid(AsA)content,carotenoid content,flavonoid content and antiox2idative enzyme activities in ten hot pepper varieties leaves under both normal and high temperature and air humidity condi2tions during seedling stage. The results indicated that contents of AsA and activities of POD,APXincreased,and contents ofGSH,CAR and activities of DHAR,SOD decreased under high temperature and air humidity stress. There was no regularityof the contents of flavonoid under high temperature and air humidity stress.According to the every index’s the relative val2ue,and then the methodsof subordinate function was used in evaluation for antioxidant activity differencesof hot pepper va2rieties,and the antioxidant activity followed the sequence:I> C>W>D >J > H> F > G> E> K.

Key words: High temperature and air humidity, Hot pepper, Antioxidant system, Antioxidant activity

CLC Number:

S641.3

XU Xiao-wan, CAO Bi-hao, CHEN Guo-ju, CHEN Qing-hua, LEI Jian-jun. Effects of High Temperature and Air Humidity Stress on Antioxidant System and Antioxidant Activity Differences of Hot Pepper Varieties[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(1): 81-86. doi: 10.7668/hbnxb.2008.01.018.

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