| 共培养条件下强壮前沟藻与中肋骨条藻的相互作用 |
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| 引用本文： | 冀晓青,韩笑天,郑立,白洁,俞志明.共培养条件下强壮前沟藻与中肋骨条藻的相互作用[J].海洋学报,2011,33(1):146-152. |
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| 作者姓名： | 冀晓青 韩笑天 郑立 白洁 俞志明 |
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| 作者单位： | 1.中国科学院 海洋研究所 海洋生态与环境科学重点实验室, 山东 青岛 266071;中国海洋大学 环境科学与工程学院, 山东 青岛 266100 |
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| 基金项目： | 国家自然科学基金(40806053);国家基础研究规划"九七三"项目(2010CB428700);国家海洋局第二海洋研究所海洋生态系统与生物地球化学重点实验室开放研究基金资助项目(LMEB200701);国家海洋局第一海洋研究所海洋生态环境科学与工程重点实验室开放基金(MESE-2008-02) |
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| 摘 要： | 半连续条件下研究了强壮前沟藻与中肋骨条藻不同接种密度下种间的相互作用,按照以下条件:(1)1×10<'4>个/cm<'3>强壮前沟藻与1×10<'4>个/cm<'3>中肋骨条藻;(2)1×10<'4>个/cm<'3>强壮前沟藻与5×10<'4>个/cm<'3>中肋骨条藻;(3)1×10<'4>个/cm<'3>强壮前沟藻...
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| 关 键 词： | 强壮前沟藻 中肋骨条藻 半连续共培养 去藻滤液培养 化感作用 |
| 收稿时间： | 2009/11/26 0:00:00 |
Interactions between Amphidinium carterae Hulburt and Skeletonema costatum(Greville) Cleve with different densities in cultures |
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| JI Xiao-qing,HAN Xiao-tian,ZHENG Li,BAI Jie and YU Zhi-ming.Interactions between Amphidinium carterae Hulburt and Skeletonema costatum(Greville) Cleve with different densities in cultures[J].Acta Oceanologica Sinica (in Chinese),2011,33(1):146-152. |
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| Authors: | JI Xiao-qing HAN Xiao-tian ZHENG Li BAI Jie and YU Zhi-ming |
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| Institution: | Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;College of Environment Science and Engineering, Ocean University of China, Qingdao 266100, China;Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration,;Marine Ecology Research Center, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;College of Environment Science and Engineering, Ocean University of China, Qingdao 266100, China;Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China |
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| Abstract: | In order to investigate the growth interactions between each microalgae, two microalgae Amphidinium carterae Hulburt and Skeletonema costatum(Greville) Cleve were studied with different densities using semi-continuous cultures in controlled laboratory conditions (temperature, light and illuminating periodicity, etc.) and sufficient nutrition supply every day. When 1×104 cell/cm3 A. carterae and 1×104 cells/cm3 S. costatum were inoculated into the same medium, growth of A. carterae was slightly suppressed, while S. costatum was notably suppressed. Other inoculum resulted in reduced S. costatum maximum cell densities. These results were consistent with those of simultaneous assays using cell-free filtrates of mono-algal and semi-continuous cultures. That is, exposure to cell-free filtrates of A. carterae or A. carterae s-S. costatum had a inhibitory effect on S. costatum. A mathematical model was used to simulate growth and interactions of A. carterae and S. costatum in semi-continuous cultures, which indicated that A. carterae outcompeted S. costatum over time. And the inhibition exerted by A. carterae on S. costatum was about 8.2, 3.4 and 14.2 times stronger than the inhibition exerted by S. costatum on A. carterae when they were set at A. carterae and 1×104 cells/cm3 S. costatum, A. carterae and 5×104 cells/cm3 S. costatum and A. carterae and 10×104 cells/cm3 S. costatum, respectively. These results successfully demonstrate that allelopathy is involved in the growth interactions between A. carterae and S. costatum, and extracellular metabolites have been suggested to be one factor contributing to the formation and/or maintenance of dinoflagellate blooms.Cell-free filtrate cultures is one of the basic approaches on allelopathy research which noted that cell-to-cell contact is not necessary for inhibitory effects between algae. |
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| Keywords: | Amphidinium carterae Hulburt Skeletonema costatum(Greville) Cleve semi-continuous culture cell-free filtrate culture allelopathy |
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