Vallisneria spiralis Linn. could inhibit growth of M. aeruginosa, and M. aeruginosa could inhibit the growth of Vallisneria spiralis Lin only under shading conditions.

• 结果表明，苦草的存在对铜绿微囊藻的生长有明显的抑制；铜绿微囊藻对苦草生长的抑制，必须与藻对苦草的遮光作用相结合才能完成。