Figure 1From: Accumulation of phenanthrene by roots of intact wheat (Triticum acstivnmL.) seedlings: passive or active uptake?Time course of phenanthrene uptake by roots of wheat seedlings through 36 h. Roots were incubated in Hoagland nutrient solution (pH 5.5) containing 5.62 μM phenanthrene at 25°C. Data points represent mean and SD values of triplicates. Error bars do not extend outside all data points. fr wt, Fresh weight.Back to article page