Heavy metal-induced physiological alterations and oxidative stress in the moss Brachythecium piligerum chad.
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.
Sun
Shou-Qin
SQ
Institute of Mountain Hazards and Environment, Chinese Academy of Science, Chengdu 610041, China. shouqinsun@imde.ac.cn
He
Ming
M
Wang
Gen-Xu
GX
Cao
Tong
T
D060387:Ascorbate Peroxidases / Q000378:metabolism; D015415:Biomarkers / Q000378:metabolism; D044002:Bryophyta / Q000187:drug effects* / Q000378:metabolism*; D002374:Catalase / Q000378:metabolism; D002681:China; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000494:pharmacology; D015227:Lipid Peroxidation; D008315:Malondialdehyde / Q000032:analysis; D019216:Metals, Heavy / Q000494:pharmacology*; D018384:Oxidative Stress; D011392:Proline / Q000032:analysis; D013482:Superoxide Dismutase / Q000378:metabolism
D015415:Biomarkers; D004785:Environmental Pollutants; D019216:Metals, Heavy; D008315:Malondialdehyde; D011392:Proline; D060387:Ascorbate Peroxidases; D002374:Catalase; D013482:Superoxide Dismutase