− | |Higher root lipids have been associated with increased plant uptake of organic contaminants such as polyaromatic hydrocarbons (PAHs) | + | |Higher root lipid content has been associated with increased plant uptake of organic contaminants such as polyaromatic hydrocarbons (PAHs) |
− | |Longer roots are associated with plants consuming more nutrients, although roots which reach the bottom to the media may contribute nutrient... | + | |Longer roots are associated with plants consuming more nutrients and preserving hydraulic conductivity of the filter media, although decomposition of roots that reach the bottom of the filter media bed may contribute to nutrient leaching. |