| Growth inhibition to three red tide microalgae by extracts of Ulva pertusa |
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| 作者姓名： | 金秋 董双林 王长云 |
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| 作者单位： | Mariculture Laboratory College of Fisheries Ocean University of China Qingdao 266003 China，Mariculture Laboratory College of Fisheries Ocean University of China Qingdao 266003 China，Institute of Marine Drug and Food Ocean University of China Qingdao 266003 China |
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| 基金项目： | This research supported by the Open Research Fund Program of Key Laboratory of Marine Drugs (Ocean University of China), the Ministry of Education of China，also by NSFC for Talented Youths (No. 397250239) and the Project under Major State Basic Research of China (No. G1999012011) |
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| 摘 要： | 1 INTRODUCTION In recent decades, red tides that induced by in- creasing eutrophication occur frequently in coastal areas worldwide. This has caused serious problems in marine environment, aquaculture industries and human health (Qi et al., 1993; Horner e…
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| 关 键 词： | 赤潮 生长抑制 微藻类 水环境 海洋污染 |
| 收稿时间： | 2004-05-31 |
| 修稿时间： | 2004-09-20 |
Growth inhibition to three red tide microalgae by extracts ofUlva pertusa |
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| Jin Qiu,Dong Shuanglin,Wang Changyun.Growth inhibition to three red tide microalgae by extracts of Ulva pertusa[J].Chinese Journal of Oceanology and Limnology,2006,24(2):147-153. |
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| Authors: | Jin Qiu Dong Shuanglin Wang Changyun |
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| Affiliation: | (1) Mariculture Laboratory: College of Fisheries, Ocean University of China, 266003 Qingdao, China;(2) Institute of Marine Drug and Food, Ocean University of China, 266003 Qingdao, China |
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| Abstract: | Growth inhibition effect of different concentration of distilled water extract and four polar organic solvent (methanol, acetone, ether and chloroform) extracts of Ulva pertusa on three typical red tide microalgae (Heterosigma akashiwo, Alexandrium tamarense and Prorocentrum micans) were inves- tigated. Liquid-liquid fractionation and HPLC analysis for methanol extract of U. pertusa were carried out. Growth of the three microalgae was significantly inhibited by the distilled water extract of U. pertusa at relatively higher concentration. However, the cells of the three microalgae did not die completely even at high concentration. Methanol extract of U. pertusa showed the highest growth inhibition on the three mi- croalgae, and all the cells of the three microalgae were killed at relatively high concentration. The other three organic solvent extracts of U. pertusa had no apparent effect on the three microalgae. The results of bioassays and HPLC analysis suggested that the inhibitory substances in U. pertusa to the microalgal growth had relatively high polarities. H. akashiwo was the most sensitive one while A. tamarense was the most tolerant one to the growth inhibitory substances. |
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| Keywords: | growth inhibition extracts Ulva pertusa Heterosigma akashiwo Alexandrium tamarense Prorocentrum micans |
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