Effects of cadmium on growth and physiological characteristics of Cardamine violifolia

doi:10.14088/j.cnki.issn0439-8114.2022.05.017

Abstract

Abstract: Cardamine violifolia was used as the research material, and the seedling age of 50 days was treated with cadmium chloride （CdCl²）at different concentrations （0、50、100、150、200 mg/L）. The POD activity, SOD activity, plant height, fresh weight and CAT activity were measured. The results showed that when cadmium concentration was higher than 50 mg/L,cadmium had a significant inhibitory effect on the plant height and fresh weight of Cardamine violifolia. With the increase of cadmium concentration, the chlorophyll a,chlorophyll b,chlorophyll and chlorophyll a/b of Cardamine violifolia decreased. With the increase of cadmium concentration,the activities of protective enzymes in leaves and roots of Cardamine violifolia first increased and then decreased. When the concentration of cadmium salt was 150 mg/L,the activities of protective enzymes reached the maximum. The results showed that Cardamine violifolia was a resource plant and could be used as an indicator plant for cadmium pollution in soil and water.

Key words: Cardamine violifolia, cadmium, growth and physiological characteristics, enzyme activity

CLC Number:

X173

HUANG Dong-hua, MAI Shu-hua, QIU Shu, CHEN Da-qing. Effects of cadmium on growth and physiological characteristics of Cardamine violifolia[J]. HUBEI AGRICULTURAL SCIENCES, 2022, 61(5): 87-90.

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