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董静, 李根保. 微囊藻群体形成影响因子及机理[J]. 水生生物学报, 2016, 40(2): 378-387. DOI: 10.7541/2016.50
引用本文: 董静, 李根保. 微囊藻群体形成影响因子及机理[J]. 水生生物学报, 2016, 40(2): 378-387. DOI: 10.7541/2016.50
DONG Jing, LI Gen-Bao. INFLUENCING FACTORS AND MECHANISMS ON COLONY FORMATION OF MICROCYSTIS: A REVIEW[J]. ACTA HYDROBIOLOGICA SINICA, 2016, 40(2): 378-387. DOI: 10.7541/2016.50
Citation: DONG Jing, LI Gen-Bao. INFLUENCING FACTORS AND MECHANISMS ON COLONY FORMATION OF MICROCYSTIS: A REVIEW[J]. ACTA HYDROBIOLOGICA SINICA, 2016, 40(2): 378-387. DOI: 10.7541/2016.50

微囊藻群体形成影响因子及机理

INFLUENCING FACTORS AND MECHANISMS ON COLONY FORMATION OF MICROCYSTIS: A REVIEW

  • 摘要: 富营养化导致的湖泊、水库蓝藻水华带来了一系列环境和生态问题。微囊藻群体形成,在水体表面的聚集是形成水华的重要策略之一。微囊藻群体形成有效抵御了草食性动物摄食、病毒、细菌的侵害,耐受不良环境因子(紫外辐射、高光强、重金属等)能力显著增强。文章探讨了野外微囊藻群体占优势的机制并综述了影响微囊藻群体形成的外源因子及作用机理,包括非生物因子(营养、温度、光照、重金属、微囊藻毒素、乙醛酸)、生物因子(草食性动物、细菌、鱼类、藻类)。基于现有研究,本综述还对未来研究进行展望:(1)非生物因子与生物因子协同效应对藻类形态影响研究; (2)人类活动对浮游藻类形态及动态的影响研究;(3)藻类形态对沉水植物的响应在未来淡水生态系统修复中的应用; (4)促进藻类群体形成的胞外多糖分泌在未来工业生产中的作用。

     

    Abstract: Cyanobacterial blooms in lakes and reservoirs caused by eutrophication coming with a series of environmental and ecological problems. Colony formation of Microcystis and aggregation at the surface of water column is one of the most important factors of forming cyanobacterial blooms. Compared with single-cell, Microcystis colonies have higher tolerance ability to adverse conditions (ultraviolet radiation, high light, heavy metal and so on) and are more re-sistance to predation, virus and bacteria, and the potential mechanisms were discussed in this review article. We also reviewed the recent findings of affecting factors on phytoplankton colony formation including abiotic factors (nutrition, temperature, light, heavy metal, microcystin, and glyoxylic acid), and biotic factors (herbivore, bacteria, fish, and algae). We also made the prospect for future researches: (1) Synergistic effects of abiotic-biotic factors on algae morphology; (2) Influences of human activities on phytoplankton morphology and community structure; (3) Applications of the responses of phytoplankton morphology to submerged plants in future aquatic ecosystems; (4) The application of exopolysaccharide secretion by algae in future industrial production.

     

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