药用植物浸提液抑制蛋白核小球藻生长的化感效应  

The allelopathic and inhibitive effects of extracts from medicinal plants on the growth of Chlorella pyrenoidosa

作　　者：柴民伟[1] 石福臣[1] 马妍[1] 马俊改[1] 

机构地区：[1]南开大学生命科学学院,天津300071

出　　处：《生态学报》2010年第18期4960-4966,共7页Acta Ecologica Sinica

基　　金：高等学校博士学科点专项科研基金(20050055041)

摘　　要：研究了11种药用植物浸提液对水华藻种蛋白核小球藻的影响,结果显示:黄连、重楼、贯众、防己4种药用植物的浸提液均有抑藻效应。当药用植物浸提液的相对浓度为1g/L处理时,其半抑制效应时间LT50的排序为:防己<重楼<黄连<贯众。进一步研究防己的相对浓度梯度抑藻效应,结果表明:在相对浓度为2g/L时,实验3d后的藻细胞几乎全部死亡;防己的抑藻效应受贮藏时间和贮藏温度的影响不显著。在所研究的药用植物中,防己的抑藻效果最好,在抑藻方面有较大应用前景,其它3种药用植物对轻度藻类爆发的控制也有潜在应用价值。Extracts of 11 medicinal plants were used to test the inhibitive effects on the growth of Chlorella pyrenoidosa.The study results show that the extracts of Coptis chinensis,Paris quadrifolia,Dryopteris setosa,and Stephania tetrandra had inhibitive effects on the growth of Chlorella pyrenoidosa.When the relative concentration of the extracts was at 1g/L,the range of the median lethal times LT50 was in the following order：Stephania tetrandra Paris quadrifolia Coptis chinensis Dryopteris setosa.In the experiment,the algal response to the relative concentration gradient was tested,all the algae died after 3 days when the relative concentration of Stephania tetrandra was at the level of 2g/L.The study results also indicate that the effects of inhibition were not changed markedly by the storage time and storage temperature.Stephania tetrandra showed the greatest inhibition on the growth of the algal species among the medical plants studied.Thus,Stephania tetrandra has the great potential in inhibiting algal outbreak.The other three medical plants tested in the study also showed moderate inhibitive impact on the algal growth,indicating that they are also valuable in control and management of algal populations.

关 键 词：药用植物 蛋白核小球藻 化感作用 

分 类 号：X173[环境科学与工程—环境科学]