首页|期刊导航|中国海洋湖沼学报（英文版）|Identification of the toxic compounds produced by Sargassum thunbergii to red tide microalgae
中国海洋湖沼学报（英文版）2012，Vol.30Issue(5)：778-785,8.
Identification of the toxic compounds produced by Sargassum thunbergii to red tide microalgae
Identification of the toxic compounds produced by Sargassum thunbergii to red tide microalgae
摘要
Abstract
The inhibitory effects of methanol extracts from the tissues of three macroalgal species on the growths of three marine red tide microalgae were assessed under laboratory conditions.Extracts of Sargassum thunbergii(Mertens ex Roth)Kuntz tissue had stronger inhibitory effects than those of either Sargassum pallidum(Turner)C.Agardh or Sargassum kjellmanianum Yendo on the growths of Heterosigrna akashiwo(Hada)Hada,Skeletonema costatum(Grey.)Grey,and Prorocentrum micans Ehrenberg.Methanol extracts of S.thunbergii were further divided into petroleum ether,ethyl acetate,butanol,and distilled water phases by liquid-liquid fractionation.The petroleum ether and ethyl acetate fractions had strong algicidal effects on the microalgae.Gas chromatography-mass spectrometry analyses of these two phases identified nine fatty acids,most of which were unsaturated fatty acids.In addition,pure compounds of four of the nine unsaturated fatty acids had effective concentrations below 5 mg/L.Therefore,unsaturated fatty acids are a component of the allelochemicals in S.thunbergii tissue.关键词
allelopathic effects/Heterosigma akashiwo/Skeletonema costatum/Prorocentrum micans/unsaturated fatty acids/gas chromatography-mass spectrometry(GC-MS)Key words
allelopathic effects/Heterosigma akashiwo/Skeletonema costatum/Prorocentrum micans/unsaturated fatty acids/gas chromatography-mass spectrometry(GC-MS)引用本文复制引用
WANG Renjun,WANG You,TANG Xuexi..Identification of the toxic compounds produced by Sargassum thunbergii to red tide microalgae[J].中国海洋湖沼学报（英文版）,2012,30(5):778-785,8.基金项目
Supported by the National Natural Science Foundation of China(No.31070458),the National Key Technology R&D Program of China(No.2010BAC68B00),the Specialized Research Program for Marine Public Welfare Industry from the State Oceanic Administration of China(Nos.200805066,200905020,201005007),the Natural Science Foundation of Shandong Province(No.2009ZRB01461),the Encouraging Foundation for Outstanding Youth Scientists of China(No.2008BS09011),and the Science and Technology Project of Institutions of Higher Education of Shandong(No.J10LC13) （No.31070458）
