%0 Journal Article
%A CHAI Min-Wei
%A MA Yan
%A SHI Fu-Chen*
%T Inhibitory Effect of Algae Growth and HPLC Analysis of Allelochemicals from <em>Stephania tetrandra</em>
%D 2010
%R 10.7525/j.issn.1673-5102.2010.06.024
%J Bulletin of Botanical Research
%P 758-762
%V 30
%N 6
%X Aqueous extracts of 12 kinds of medicinal plants were obtained by soak extraction, and their inhibitory effects on algae growth were studied. The results showed that: when the relative concentration was 1 g&middot;L<sup>-1</sup>, aqueous extracts of <em>Stephania tetrandra</em> had the strongest inhibitory effect on the growth of <em>Chlorella pyrenoidosa</em>, and the maximum specific growth rate was -0.28 d<sup>-1</sup>. The methanol extract of <em>S.tetrandra</em> had significant and long-lasting inhibitory effect on the growth of <em>C.pyrenoidosa</em> and the lowest effective concentration in inhibiting algae was 30 mg&middot;L<sup>-1</sup>.The identification results of HPLC showed that: the main constituents in the extracts were alkaloids such as fangchinoline and tetrandrine, etc.<em>S.tetrandra</em> had great prospect of application in controlling water bloom.
%U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2010.06.024