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Liu Xiaohong\ Liu Qiongying\ Kuang Yanhua (The Laboratory of Biophysics, South China Agricultural University, Guangzhou\ 510642) Cai Hong (Department of CSE, The Hong Kong Polytechnic University) Peter, H. Yu (Department of ABCT, The Hong Kong Poly  
The absorption of 125 I and 3H in four aquatic plants was studied by solution cultivation. The results showed that arrowhead (Sagittaria pygmaea Miq.) was the fastest in absorbing 125 I among the four tested aquatic plants and its concentration factor for 125 I was the highest (85 79). The alligator alternanthera (Alternanthera philoxeroides) was the slowest in absorbing 125 I and its concentration factor was the lowest.However, the absorption of 3H in alligator alternanthera was the fastest among the four aquatic plants. After being absorbed by aquatic plants, the 125 I could be transfered to the shoot. In arrowhead, about 75% of 125 I remained in the root, 25% being transfered to the shoot.
【CateGory Index】: S645
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