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Analysis of sterols in selected bloom-forming algae in China
Geng, Hui-Xia1,2; Yu, Ren-Cheng1,2,3; Chen, Zhen-Fan1,2; Peng, Quan-Cai1; Yan, Tian1,3; Zhou, Ming-Jiang1
2017-06-01
发表期刊HARMFUL ALGAE
卷号66页码:29-39
文章类型Article
摘要Sterols, a group of stable lipid compounds, are often used as biomarkers in marine biogeochemical studies to indicate sources of organic matter. In this study, sterols in 13 species of major bloom-forming algae in China, which belong to Dinophyceae, Bacillariophyceae, Ulvophyceae, and Pelagophyceae, were analyzed with gas chromatography-mass spectrometry (GC-MS) to test their feasibility in representing different types of harmful algal blooms (HABs). It was found that (24Z)-stigmasta-5,24-dien-3 beta-ol (28-isofucosterol) was a major sterol component in green-tide forming macroalga Ulva prolifera. In bloom forming dinoflagellates Alexandrium spp., Prorocentrum micans and Scrippsiella trochoidea, (22-E)-4 alpha,23-dimethy1-5 alpha-ergost-22-en-3 beta-ol (dinosterol) was detected in addition to cholest-5-en-3 beta-ol (cholesterol), (22E)-ergosta-5,22-dien-3 beta-ol, (22E)-stigmasta-5,22-dien-3 beta-ol and other minor sterol components. In brown-tide forming pelagophyte Aureococcus anophagefferens, (24E)-24-propylcholesta-5,24dien-3 beta-ol ((24E)-24-propylidenecholesterol) and (24Z)-24-propylcholesta-5,24-dien-3 beta-ol ((24Z)-24-propylidenecholesterol) were detected together with cholesterol, (22E)-stigmasta-5,22-dien-3 beta-ol, stigmast-5-en-3 beta-ol and campest-5-en-3 beta-ol. Among the selected bloom-forming diatoms, Chaetoceros sp. and Pseudo-nitzschia spp. only produced cholesterol, while Cylindrotheca closterium produced solely (22E)-ergosta-5,22-dien-3 beta-ol. Sterol content in four bloom-forming algal species correlates well with their biomass or abundance. It's proposed that 28-isofucosterol could serve as a promising biomarker for green algae in green-tide studies. Dinosterol and (24Z)-24-propylidenecholesterol can be used as potential biomarkers to represent bloom-forming dinoflagellates and pelagophytes, while (22E)-ergosta-5,22-dien-3 beta-ol is not a good indicator for diatoms. (C) 2017 Elsevier B.V. All rights reserved.
关键词Biomarker Sterol Harmful Algal Blooms
DOI10.1016/j.hal.2017.04.008
收录类别SCI
语种英语
WOS记录号WOS:000404303700004
引用统计
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/137143
专题海洋生态与环境科学重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
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GB/T 7714
Geng, Hui-Xia,Yu, Ren-Cheng,Chen, Zhen-Fan,et al. Analysis of sterols in selected bloom-forming algae in China[J]. HARMFUL ALGAE,2017,66:29-39.
APA Geng, Hui-Xia,Yu, Ren-Cheng,Chen, Zhen-Fan,Peng, Quan-Cai,Yan, Tian,&Zhou, Ming-Jiang.(2017).Analysis of sterols in selected bloom-forming algae in China.HARMFUL ALGAE,66,29-39.
MLA Geng, Hui-Xia,et al."Analysis of sterols in selected bloom-forming algae in China".HARMFUL ALGAE 66(2017):29-39.
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