Institute of Mountain Hazards and Environment, Chinese Academy of Science, Chengdu 610041, China.
Environ Toxicol. 2011 Oct;26(5):453-8. doi: 10.1002/tox.20571. Epub 2010 Mar 1.
Antioxidative enzymes (superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX)), as well as lipid peroxidation and proline were studied in moss Brachythecium piligerum Card. collected from different sites in Shanghai, China, to validate the physiological parameters as biomarkers of atmospheric heavy metal pollution. Results demonstrated that the responses of POD and CAT activities, as well as MDA and proline contents were in accordance with the heavy metal contents in mosses. That is, POD activity, MDA, and proline content were activated and CAT activity was inhibited in heavier polluted sites, indicating that POD and CAT activities, and MDA and proline contents could be used as biomarkers for biomonitoring atmospheric heavy metal pollution.
抗氧化酶（超氧化物歧化酶（SOD）、过氧化物酶（POD）、过氧化氢酶（CAT）、抗坏血酸过氧化物酶（APX））以及脂质过氧化和脯氨酸在不同地点采集的中国上海短叶金发藓（Brachythecium piligerum Card.）中进行了研究，以验证生理参数作为大气重金属污染生物标志物的有效性。结果表明，POD 和 CAT 活性以及 MDA 和脯氨酸含量的响应与苔藓中的重金属含量一致。也就是说，在污染较重的地点，POD 活性、MDA 和脯氨酸含量被激活，CAT 活性受到抑制，这表明 POD 和 CAT 活性以及 MDA 和脯氨酸含量可用作大气重金属污染生物监测的生物标志物。
