大型海藻龙须菜浸出组分对中肋骨条藻的化感抑制作用(英文)

Effects of Extracts from Gracilaria lemaneiform on Microalgae

研究了龙须菜乙醇浸出组分对中肋骨条藻的化感抑制作用。结果显示,浸出组分对中肋骨条藻产生明显抑制作用,且微藻的生物量迅速减少。当龙须菜浸出成分浓度为42mgL-1时,相对抑制率为50%,即半效应浓度(EC50)。龙须菜对赤潮藻产生明显的化感抑制作用,延缓了富营养化水体中赤潮藻的爆发,从而使龙须菜具有控制中肋骨条藻赤潮发生的潜在价值。

Plants interact among themselves physically, but more often by chemical means. One such chemical interaction is allelopathy and one such chemical substance is allelochemical. In the First World Congress on Allelopathy , allelopathy was defined as ＇Any process that involves secondary metabolites produced by plants, algae, bacteria and fungi that influence the growth and development of biological systems＇. Some aquatic macrophytes show allelopathy to other microalgaes, and can reduce biomass of microalgaes by releasing allelopathic compounds This present works is to study effects of G. lemaneiform and assess the potential of the seaweed G. lemaneiform.