Effects of simulated acid rain and Cd on the membrane lipid peroxidation and morphological characteristics of Hosta ventricosa

doi:10.11686/cyxb20140640

Abstract

Abstract: In order to better understand how acid rain and heavy metals work together to influence the membrane lipid peroxidation and morphological characteristics of Hosta ventricosa, in a soil culture experiment, different pH (6.5, 5.5, 4.5, 3.5 and 2.5) of acid rain and different concentrations (0, 10, 30, 50 and 100 mg/kg) of Cd were set to test how they influence morphological characteristics, lipid peroxidation and antioxidant activity of the plants. Compound pollutants had more influence on plants than with single pollutants. There was significant interaction between the acid rain and Cd. H. ventricosa showed some tolerance to low pH acid rain and low concentrations of Cd. However, acid rain combined with Cd caused a synergistic effect. The Cd influenced H. ventricosa more than acid rain, and as appeared to be a primary cause of plant damage. The CAT activity was more sensitive to Cd than SOD. Visible injury to plants was observed at 30 mg/kg of Cd and pH 3.5 of acid rain. All the indices indicated that H. ventricosa can be selected as the appropriate plant to remediate soils contaminated with Cd or affected by acid rain.

CLC Number:

Q944

WANG Cheng-cong,GAO Su-ping,HUANG Li,LIN Xiao,ZHANG Shuo,LEI Ting. Effects of simulated acid rain and Cd on the membrane lipid peroxidation and morphological characteristics of Hosta ventricosa[J]. Acta Prataculturae Sinica, 2014, 23(6): 336-341.

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