https://scholars.lib.ntu.edu.tw/handle/123456789/301782
標題: | Peroxidase and superoxide dismutase activities in fig leaves in response to ambient air pollution in a subtropical city | 作者: | MEI - HUI LI Li, Mei-Hui |
公開日期: | 2003 | 卷: | 45 | 期: | 2 | 起(迄)頁: | 168-176 | 來源出版物: | Archives of Environmental Contamination and Toxicology | 摘要: | Urban air pollution is a serious problem in both developing and developed countries, and antioxidant enzyme activities in plants have been suggested as a useful bioindicator of air pollution. In this study, the seasonal and spatial variability of peroxidase and superoxide dismutase activities were measured in leaves of Ficus microcarpa at eight sampling sites in the Taipei metropolitan area and one background site in rural area at each month for a year. The spatial pattern of peroxidase activity in figs collected from the Taipei metropolitan area was similar to the spatial pattern of O3 concentration in the Taipei metropolitan area. The peroxidase activities of Ficus microcarpa were significantly higher at sampling sites from the outer zone of the metropolitan area than those from the inner zone of the metropolitan area in spring and summer. On the other hand, the spatial pattern of superoxide dismutase activity in fig leaves did not show significant differences between the inner and outer zones of the Taipei metropolitan area. In addition, peroxidase activities, but not superoxide dismutase activities, of Ficus microcarpa were significantly higher in sites with high traffic density than those in low traffic density sites. Even though peroxidase activities in Ficus microcarpa tended to be higher in high traffic density sites or some sites with high ozone concentration, site-specific changes of peroxidase activity in Ficus microcarpa due to O3 pollution were not clearly observed in this study. Based on these results, neither peroxidase nor superoxide dismutase in Ficus microcarpa is a sensitive bioindicator for O3 pollution, although peroxidase shows some potential to be used as a general bioindicator of air quality. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-0042367421&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/301782 |
DOI: | 10.1007/s00244-003-0154-x | SDG/關鍵字: | carbon monoxide; nitrogen oxide; ozone; peroxidase; sulfur dioxide; superoxide dismutase; air quality; atmospheric pollution; bioindicator; enzyme activity; leaf; air pollutant; air pollution; air quality; air sampling; article; car; enzyme activity; fig; motorcycle; nonhuman; particulate matter; plant leaf; priority journal; seasonal variation; Taiwan; traffic; urban area; Air Pollutants; Cities; Environmental Exposure; Ficus; Oxidants, Photochemical; Ozone; Peroxidase; Plant Leaves; Superoxide Dismutase; Ficus (angiosperm); Ficus microcarpa |
顯示於: | 地理環境資源學系 |
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