| 孔石莼和赤潮异弯藻相互作用的初步研究 |
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| 引用本文： | 蔡恒江,唐学玺.孔石莼和赤潮异弯藻相互作用的初步研究[J].大连水产学院学报,2012,27(3):255-259. |
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| 作者姓名： | 蔡恒江 唐学玺 |
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| 作者单位： | 1. 大连海洋大学 海洋科技与环境学院,辽宁 大连116023;辽宁省高校近岸海洋环境科学与技术重点实验室,辽宁 大连116023
2. 中国海洋大学 海洋生态学研究室,山东 青岛,266003 |
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| 基金项目： | 海洋公益性行业科研专项，辽宁省博士启动基金，辽宁省教育厅高校科研项目，大连海洋大学引进人才科研启动项目 |
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| 摘 要： | 选用大型海藻——孔石莼Ulvapertusa和赤潮微藻——赤潮异弯藻Heterosigmaakashiwo为试验材料，在实验室条件下研究了藻体、培养液滤液和胞内物质对生长相互作用的影响。结果表明：孔石莼和赤潮异弯藻二者之间存在克生效应，孔石莼培养液滤液和胞内物质对赤潮异弯藻生长有显著的抑制作用（P〈0．01），而赤潮异弯藻培养液滤液和胞内物质对孔石莼生长亦有显著的抑制作用（P〈O．01）。可以推测：孔石莼可能是通过分泌次生物质来抑制赤潮异弯藻的生长，而赤潮异弯藻可能是通过细胞的直接接触和分泌次生物质完成对孔石莼生长的抑制，其抑制物均存在于藻体和培养液中。
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| 关 键 词： | 孔石莼 赤潮异弯藻 生长 |
The exploration of interactions approach between sea lettuce Ulva pertusa and Heterosigma akashiwo |
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| CAI Heng-jiang
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TANG Xue-xi.The exploration of interactions approach between sea lettuce Ulva pertusa and Heterosigma akashiwo[J].Journal of Dalian Fisheries University,2012,27(3):255-259. |
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| Authors: | CAI Heng-jiang TANG Xue-xi |
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| Institution: | 1. College of Marine Science and Environment, Dalian Ocean University, Dalian 116023, China; 2. Key Laboratory of Inshore Marine Environmental Science and Technology of Liaoning Universities, Dalian 116023, China; 3. Marine Ecology Laboratory, Ocean University of China, Qingdao 266003, China) |
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| Abstract: | The interactive effects of sea lettuce Ulva pertusa, a red tide microalga Heterosigma akashiwo and their extracellular filtrate and intracellular products on the growth of the sea lettuce and microalga were studied under controlled laboratory conditions. An allelopathic effect between the sea lettuce and microalga was observed, and the extracellular filtrate and intracellular product of the sea lettuce led to inhibit the growth of the microalga. The extra- cellular filtrate and intracellular product of the microalga was found to show inhibition of the growth of sea lettuce simultaneously, indicating that the sea lettuce release extracellular products to inhibit the growth of the microalga, while direct cell-cell contact and releasing extracellular products were responsible for inhibitory effect of the mi- croalga on sea lettuce. The sea lettuce and the microalga were both found to release intracellular products into the culture medium fihrates to affect the growth each other. |
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| Keywords: | Ulva pertusa Heterosigma akashiwo growth |
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