Photosynthetic rates and antioxidant enzyme activity ofPlatanus occidentalis growing under two levels of air pollution along the streets of Seoul

Journal of Plant Biology - Tập 49 - Trang 315-319 - 2006
Su Young Woo1, Sun Mi Je1
1Department of Environmental Horticulture, University of Seoul, Seoul, Korea

Tóm tắt

We investigated the net photosynthetic rates and antioxidative enzyme activity inPlatanus occidentalis trees growing on two separate streets in Seoul, and representing different degrees of air pollution. In general, concentrations of SO2, NO2, and PM10 decreased from May to September. The photosynthetic rate was reduced significantly on the street with higher levels of pollution. Moreover, activities of two antioxidative enzymes, ascorbate peroxidase and glutathione reductase, were greater in May along the more polluted street. These data suggest thatP. occidentalis growing in highly polluted environments may increase their antioxidant enzyme activity to compensate for and to minimize the damage from this stress.

Tài liệu tham khảo

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