| 吲哚乙酸对微拟球藻生长和脂肪酸含量的影响 |
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| 引用本文： | 焦媛媛,俞建中,潘克厚.吲哚乙酸对微拟球藻生长和脂肪酸含量的影响[J].中国海洋大学学报(自然科学版),2011,41(4):57-60. |
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| 作者姓名： | 焦媛媛 俞建中 潘克厚 |
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| 作者单位： | 中国海洋大学应用微藻生物学研究室,山东青岛,266003 |
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| 基金项目： | 国家科技支撑计划项目(2006BAD09A12)资助 |
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| 摘 要： | 研究不同浓度吲哚乙酸(Indole-3-Acetic Acid,IAA)对微拟球藻(Nannochloropsis oculata)生长和脂肪酸组成的影响。结果表明:在0.1 mg/L时,低于0.5 mg/L时IAA促进微拟球藻生长,但不影响叶绿素和不饱和脂肪酸合成;IAA促进生长作用最显著,最大比生长率为2.33 d-1。随浓度进一步增加,IAA促生长作用越来越小,并抑制叶绿素和不饱和脂肪酸合成;在5 mg/L时,IAA极显著抑制EPA合成。添加适当浓度IAA可促进藻细胞生长,缩短其生长周期。
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| 关 键 词： | 吲哚乙酸 微拟球藻 比生长率 光密度法 叶绿素 脂肪酸 |
Effects of Indole--3acetic Acid on the Growth and Fatty Acid Composition of Nannochloropsis oculata |
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| JIAO Yuan-Yuan,YU Jian-Zhong,PAN Ke-Hou.Effects of Indole--3acetic Acid on the Growth and Fatty Acid Composition of Nannochloropsis oculata[J].Periodical of Ocean University of China,2011,41(4):57-60. |
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| Authors: | JIAO Yuan-Yuan YU Jian-Zhong PAN Ke-Hou |
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| Institution: | JIAO Yuan-Yuan,YU Jian-Zhong,PAN Ke-Hou(Lab of Applied Microalgae Biology,Ocean University of China,Qingdao 266003,China) |
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| Abstract: | The effects of IAA(indole-3-acetic acid,IAA) on the growth and fatty acid composition of Nannochloropsis oculatawere investigated.When the concentration was lower than 0.5 mg/L,IAA pro-moted the growth ofN.oculataand did not affect the synthesis of chlorophyll and unsaturated fatty acids.The most significant promotion to the growth was observed when IAA was 0.1 mg/L.The fastest cell specific growth rate was 2.33 d-1.When the concentration was higher than 0.1 mg/L,IAA gradually attenuated its promotion to th... |
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| Keywords: | Indole-3-acetic acid(IAA) Nannochloropsis oculata specific growth rate optical density chlorophyll fatty acid |
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