Effect of Simulated Acid Rain on Fatty Acid Composition and Antioxidant System in Garden Balsam(Impatiens balsamina L.)
인공산성비가 봉선화(Impatiens balsamina L.)의 지방산 구성 및 항산화 작용에 미치는 영향

Hak-Yoon Kim
2011 Korean Journal of Weed Science  
The effects of simulated acid rain (SAR) on fatty acid composition and biochemical defense responses of plant was investigated. Garden balsam (Impatiens balsamina L.) was exposed to four pH levels (5.6, 4.0, 3.0, 2.0) of SAR and placed in the growth chambers for 2 weeks. SAR drastically inhibited chlorophyll content of garden balsam. The level of H 2 O 2 was significantly increased by SAR. As pH levels decreased from 5.6 to 2.0, the ratio of unsaturated to saturated fatty acids of garden balsam
more » ... was increased. Changes of three major polyamines (putrescine, spermidine and spermine) of garden balsam leaves were observed. All of the polyamine contents were increased with SAR. Catalase activities of the plant affected by SAR were increased as the pH decreased. The results indicate that the application of SAR generates oxidative stresses from the garden balsam and retards the plant growth significantly. A biochemical protect mechanism might be activated to neutralize the oxidative stresses generated through SAR.
doi:10.5660/kjws.2011.31.2.152 fatcat:aj4i5e6cmjhupbl2q7yhlukiqu