海洋藻类中甘氨酸甜菜碱的浓度特征与影响因素综述
2021-11-26宋若晗陆长坤曲克明崔正国赵婉玉胡清静毕相东
宋若晗 陆长坤 曲克明 崔正国 赵婉玉 胡清静 毕相东



摘要 甘氨酸甜菜碱(GBT)是海洋藻类中广泛存在的一种含氮渗透调节物质,其被降解后产生的有机胺可通过海气交换进入大气中。近年研究表明,大气中有机胺可以促进新粒子生成及增长,具有潜在重要的气候效应,因此,海洋环境中有机胺的形成机制越来越受到关注。概述了海洋藻类中GBT合成及其降解为有机胺的途径,归纳了不同藻类体内GBT的浓度分布特征,探讨了影响藻类体内GBT浓度的因素,剖析了该领域待解决的科学问题,并对今后的研究工作进行了展望,以期为提高对海洋环境中有机胺来源的认识提供科学参考。
关键词 甘氨酸甜菜碱;有机胺;海洋藻类;浓度特征;影响因素
中图分类号 X 173 文献标识码 A
文章编号 0517-6611(2021)21-0019-08
doi:10.3969/j.issn.0517-6611.2021.21.006
开放科学(资源服务)标识码(OSID):
Summary of Concentration Characteristics and Influencing Factors of Glycine Betaine in Marine Algae
SONG Ruo-han LU Chang-kun QU Ke-ming 3 et al
(1.College of Fishery,Tianjin Agricultural University,Tianjin 300392; 2.Yellow Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Key Laboratory of Sustainable Development of Marine Fisheries,Ministry of Agriculture and Rural Affairs,Qingdao,Shandong 266071; 3.Laboratory for Marine Fisheries Science and Food Production Processes,Pilot National Laboratory for Marine Science and Technology (Qingdao),Qingdao,Shandong 266071)
Abstract Glycine betaine (GBT) is a nitrogen containing osmotic adjustment substance widely found in marine algae.The organic amines produced after degradation can enter the atmosphere through sea air exchange.Recent studies have shown that organic amines in the atmosphere can promote the generation and growth of new particles,and have potentially important climate effects.Therefore,the formation mechanism of organic amines in the marine environment has attracted more and more attention.This article outlined the pathways of GBT synthesis and degradation into organic amines in marine algae,summarized the distribution characteristics of GBT in different algae,discussed the factors that affect the concentration of GBT in algae,and analyzed the scientific problems to be solved in this field.The future research work is prospected,hoping to provide a scientific reference for improving the understanding of the sources of organic amines in the marine environment.
Key words Glycine betaine;Organic amines;Marine algae;Concentration characteristics; Influence factors
基金项目 国家重点研发计划(2019YFD090140 2019YFD0900500);国家自然科学基金青年基金项目(41606097);中国水产科学研究院黄海水产研究所基本科研业务费(20603022020006,2020TD12)。
作者简介 宋若晗(1996—),女,河北沧州人,硕士研究生,研究方向:海洋氮循环方面。*通信作者:胡清静,助理研究员,博士,硕士生导师,从事海洋氮循环方面研究;毕相东,教授,博士,硕士生导师,从事养殖水域生态学研究。
收稿日期 2021-06-23;修回日期 2021-07-30
经典CLAW[1]假说认为海洋浮游植物合成的二甲巯基丙酸内盐(DMSP)会被降解为二甲基硫(DMS),其在大气中继续被氧化为甲基磺酸(MSA)及硫酸等,MSA和硫酸进而核化产生新粒子或促进新粒子的增长,对全球气候变化产生重大影响。……
