Effects of Soil Acidification on Antioxidants and Antioxidative Enzymes in Garden Balsam (Impatiens balsamina L.)

To investigate the effects of soil acidification on the level of antioxidants and antioxidative enzyme activity of plants, seedlings of garden balsam (Impatiens balsamina L.) was transplanted into the soils acidified with H₂SO₄ solutions (pH 5.4, 4.7, 4.0, 3.6). The concentrations of Ca, Mg, K, Al,...

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Bibliographic Details
Published inKorean Journal of Weed Science Vol. 27; no. 1
Main Authors Kim, J.B. (Keimyung University, Daegu, Republic of Korea), Kim, H.Y. (Keimyung University, Daegu, Republic of Korea), E-mail: hykim@kmu.ac.kr
Format Journal Article
LanguageKorean
Published 01.03.2007
Subjects
ANTIOXIDANTES
ANTIOXIDANTS
antioxidative enzymes
ANTIOXYDANT
garden balsam
soil acidification
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Summary:To investigate the effects of soil acidification on the level of antioxidants and antioxidative enzyme activity of plants, seedlings of garden balsam (Impatiens balsamina L.) was transplanted into the soils acidified with H₂SO₄ solutions (pH 5.4, 4.7, 4.0, 3.6). The concentrations of Ca, Mg, K, Al, and Mn in the acidified soils were increased with increasing amount of H+ added to the soil. The level of malondialdehyde was significantly increased by soil acidification. As the pH levels decreased from 5.4 to 3.6, the contents of dehydroascorbate and oxidized glutathione of the plant were significantly increased. The antioxidative enzyme activities of the plant affected by soil acidification were increased as the pH decreased. The results indicate that garden balsam may receive oxidative stresses by soil acidification and that a biochemical protective mechanism might be activated to nullify the oxidative stresses generated through soil acidification.
Bibliography:H60
2008002716
ISSN:0253-7468