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中文摘要：
通过测定藻细胞密度，研究了5种红树植物木榄、秋茄、海漆、海芒果、小花老鼠箭水提物对赤潮藻球形棕囊藻和赤潮异弯藻的化感抑制效应，探讨了高温处理对化感抑藻效应的影响。研究结果表明，红树植物干粉水提物和新鲜组织水提物对两种赤潮藻均显示出显著的化感抑制作用。第5d，红树植物干粉水提物对2种赤潮藻的抑制效果依次为：海漆〉秋茄〉小花老鼠筋〉木榄〉海芒果。新鲜组织水提物抑藻效果最强的红树植物是木榄和秋茄。秋茄和海漆水提物中的抑藻化感物质对高温相对不稳定，木榄和小花老鼠筋水提物中的抑藻化感物质对高温相对比较稳定。
英文摘要：
Water extracts from five kinds of mangrove plants Bruguiera gymnorrhiza, Kandelia candel, Excoecaria agallocha, Cerbera manghas and Acanthus ebracteatus were used to study the allelopathic effects on red-tide algae Phaeocystis globosa and Heterosigma akashiwo by measuring the cell density of treated algae. Besides, impacts of heat treatment on allelochemicals were examined. The results showed that both of dry powder and fresh tissue water extracts had significantly inhibitive effects on the two red-tide algae. On the fifth day, the inhibitive effects of dry powder water extracts on P. globosa and H. akashiwo were in the order of E. agallocha〉 K. candel〉 A. ebracteatus〉 B. gymnorrhiza〉 C. manghas. Fresh tissue water extracts of B. gymnorrhiza and K. candel had the most inhibitive effects on the two algae. Heat treatment study showed that algaecidal allelochemicals of K. candel and E. agallocha were relatively unstable, but algaecidal allelochemicals of B. gymnorrhiza and A. ebracteatus were relatively stable under high temperature condition.
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