淡水蓝藻胶被生物学功能及其分子调控研究进展  

Advances in biological function and molecular regulation of cyanobacterial surface coats in freshwaters

作　　者：程豫然 肖艳[1] 吴兴华 李哲[1] Cheng Yuran;Xiao Yan;Wu Xinghua;Li Zhe(Key Laboratory of Reservoir Aquatic Environment,Chongqing Institute of Green and Intelligent Technology,Chinese Academy of Sciences,Chongqing 400714,P.R.China;University of Chinese Academy of Sciences,Beijing 100049,P.R.China;China Three Gorges Corporation,Beijing 100038,P.R.China)

机构地区：[1]中国科学院重庆绿色智能技术研究院,中国科学院水库水环境重点实验室,重庆400714 [2]中国科学院大学,北京100049 [3]中国长江三峡集团有限公司,北京100038

出　　处：《湖泊科学》2021年第4期1018-1030,共13页Journal of Lake Sciences

基　　金：国家自然科学基金项目(51779240,51979262,51861125204)资助.

摘　　要：胶被是蓝藻细胞外部的功能性结构,在蓝藻形态适应性策略中发挥重要作用,影响蓝藻水华发生及其优势维持.近年来,对蓝藻胶被的特性、结构组分、影响因子、及其工业应用等方面已有较为丰富且清晰的科学认识.但对胶被生物学功能及相关分子调控机制的研究却相对较少.本文对淡水蓝藻胶被的产生、生物学功能及其分子调控机制进行了综述,总结了胶被4个方面生物学功能:(1)保护屏障抵御外界胁迫;(2)参与营养物质的传递、吸收和储存:(3)参与运动迁移过程;(4)促进蓝藻聚集和水华形成;结合近年来分子生物学前沿技术的应用,本文分析蓝藻胶被合成的分子生物学研究现状;探讨蓝藻响应外界不同环境的胶被分子调控机制,并对蓝藻胶被的未来研究热点进行了展望.As a functional outermost structure surrounding cyanobacteria cells,the surface coats play an important role in morphological adaption,which further influence the dominance and persistence of cyanobacterial blooms in freshwaters.In recent years,there have been extensive studies on the characteristics,structures and components,regulating factors,and industrial applications of cyanobacterial surface coats.The biological function of cyanobacterial surface coats and their molecular regulation mechanisms have still not been clearly understood.In this paper,with the development of analytical technology,we summarized the production,biological functions and especially the molecular response mechanisms of cyanobacterial surface coats in freshwaters.We reviewed the biological functions of surface coats in the following four aspects:1) serving as a protective barrier against environmental stress,2) participating in mass transport and storage,3) motivating the movement,4) promoting the aggregation and cyanobacterial blooms in freshwaters.In addition,we analyzed current molecular biological research advances on the synthesis of cyanobacterial surface coats.We also discussed the molecular regulation mechanisms of cyanobacteria in response to external environments via surface coats.Finally,we proposed future focus on the cyanobacterial surface coats.

关 键 词：胶被 生物学功能 分子调控 蓝藻水华 

分 类 号：X52[环境科学与工程—环境工程]