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  • 中国科技核心期刊
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Volume 34 Issue 1
Jan.  2015
Article Contents

Citation:

Carbon stable isotopic fractionation associated with biosynthesis of fatty acids by marine microalgae under the stress of oil spills

  • Received Date: 2014-05-27
    Accepted Date: 2014-07-03
  • In order to realize the effects of oil spill on marine microalgae growth, we studied the carbon stable isotope composition (13C) of Chaetoceros gracilis under the stress of different content of water accommodated fraction (WAF) of No.180 fuel oil. The result shows that the rate of fatty acid synthesis are affected by different degree of the stress of WAF in the process of microalgae growth, especially there are approximately linear relationships between the 13C values of unsaturated fatty acids (16:1 and 18:4) and WAF, which may result from the kinetic stable isotope fractionation effect. Therefore parts of unsaturated fatty acids such as 16:1 may be used as an alternative biomarker for estimating the pollution degree of oil spills.
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  • [1] 白志鹏,张利文,朱 坦,等.稳定同位素在环境科学研究中的应用进展[J].同位素,2007,20(1):57-64.[6]曹福亮,王欢利,郁万文,等.高等植物脂肪酸去饱和酶及编码基因研究进展[J].南京林业大学学报(自然科学版),2012,36(2):125-132.[7]曾硕士,江黎明,元冬娟.脂肪酸去饱和酶的研究进展[J].生命科学,2008,20(5):816-820.[8]陈 刚,肖 慧,唐学玺.3种海洋赤潮微藻蛋白质和核酸合成动态对芘胁迫的响应[J].海洋环境科学,2008,27(4):320-322.[9]王修林,杨茹君,祝陈坚.石油烃污染物存在下旋链角毛藻生长的粒度效应初步研究[J].中国海洋大学学报,2004,34(5):849-853.[10]张 蕾,王修林,韩秀荣,等.石油烃污染物对海洋浮游植物生长的影响实验与模型[J].青岛海洋大学学报,2002,32(5):804-810.[11]王 悠,唐学玺,李永祺,等.低浓度蒽对两种海洋微藻生长的兴奋效应[J].应用生态学报,2002,13(3):343-346.[12]张聿柏.石油烃对海洋微藻的毒性效应及其机理研究[D].青岛:中国海洋大学,2013.
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Carbon stable isotopic fractionation associated with biosynthesis of fatty acids by marine microalgae under the stress of oil spills

  • 1. College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China;
  • 2. Environmental Information Institute, Dalian Maritime University, Dalian 116026, China

Abstract: In order to realize the effects of oil spill on marine microalgae growth, we studied the carbon stable isotope composition (13C) of Chaetoceros gracilis under the stress of different content of water accommodated fraction (WAF) of No.180 fuel oil. The result shows that the rate of fatty acid synthesis are affected by different degree of the stress of WAF in the process of microalgae growth, especially there are approximately linear relationships between the 13C values of unsaturated fatty acids (16:1 and 18:4) and WAF, which may result from the kinetic stable isotope fractionation effect. Therefore parts of unsaturated fatty acids such as 16:1 may be used as an alternative biomarker for estimating the pollution degree of oil spills.

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