泉古菌醇与绿素在东海陆架区的分布及关系研究

Distribution and relationship between crenarchaeol and chlorin in East China Sea Continental Shelf

摘要:

[目的]研究东海陆架地区的沉积物中的泉古菌醇、绿素的分布及其相关关系。[方法]通过有机化学的方法将泉古菌醇和绿素从沉积物中萃取出来之后，利用高效液相色谱质谱连用对泉古菌醇进行定量检测，利用高效液相色谱对绿素进行定量检测。[结果]泉古菌醇和绿素在长江河口绝对量的分布在空间上呈现类似关系，并且受到陆源输入的影响较小。[结论]东海陆架区的泉古菌醇和绿素均为海洋产生，而非陆源输入，且两者呈现明显的相关关系，提示泉古菌醇具有指示历史时期东海表层初级生产力变化的潜在应用。

关键词:古菌;泉古菌醇;绿素;东海陆架区

Abstract:

[Objective] The distributions and relationships between crenarchaeol and chlorin were investigated in the continental shelf of East China Sea. [Methods] Organic chemical methods were used to extract crenarchaeol and chlorin from sediment samples. We used High Performance Liquid Chromatography/Mass Spectrometry to quantify crenarchaeol and High Performance Liquid Chromatography to quantify chlorin.[Results] We found that both crenarchaeol and chlorin were widespread in the continental shelf of East China Sea. Terrestrial inputs had little influence on either crenarchaeol or chlorin. Their absolute contents were correlated significantly (P<0.01) with each other. [Conclusion] The crenarchaeol and chlorin on the continental shelf of East China Sea both had marine origins rather than from terrestrial input. The abundances of crenachaeol and chlorin were correlated significantly, which suggested that crenarchaeol may be used as a potential index for the changes in the surface production of East China Sea during historical times.

Key words:archaea;crenarchaeol;chlorin;East China Sea continental shelf