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引用本文:彭思慧,黄淑敏,曾莹,林立洲,郑凌凌,章颖,宋立荣,束文圣,李春连,赵亮.蓝藻膦酸酯代谢及其生态意义研究进展.湖泊科学,2023,35(1):43-56. DOI:10.18307/2023.0102
Peng Sihui,Huang Shumin,Zeng Ying,Lin Lizhou,Zheng Lingling,Zhang Ying,Song Lirong,Shu Wensheng,Li Chunlian,Zhao Liang.Advances on cyanobacteria phosphonate metabolism and its ecological significance. J. Lake Sci.2023,35(1):43-56. DOI:10.18307/2023.0102
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蓝藻膦酸酯代谢及其生态意义研究进展
彭思慧1, 黄淑敏1, 曾莹1, 林立洲2,3, 郑凌凌2, 章颖4, 宋立荣2, 束文圣1, 李春连1, 赵亮1
1.华南师范大学生命科学学院, 广东省植物发育生物工程重点实验室, 广州市亚热带生物多样性与环境生物检测重点实验室, 广州 510631;2.中国科学院水生生物研究所, 淡水生态与生物技术国家重点实验室, 中国科学院藻类生物学重点实验室, 武汉 430072;3.广东省科学院微生物研究所, 华南应用微生物国家重点实验室, 广东省菌种保藏与应用重点实验室, 广州 510070;4.浙江省越崎中学, 绍兴 312050
摘要:
膦酸酯是新近发现的一类生物可利用磷,其广泛存在于水生生态系统,是水体有机磷库的重要组成,构成水体磷氧化还原循环的关键环节。随着研究的深入,越来越多的蓝藻藻株被证实参与膦酸酯的生物利用与合成,有助于阐明其适应低磷环境的机制,促进了对蓝藻磷策略与水体磷循环的全面理解,具有重要的生态学意义。与此同时,蓝藻对膦酸酯的利用性状,使得膦酸酯作为环境污染物与蓝藻磷源的双重作用开始显现,这会对水体浮游生物竞争格局的研究产生深远影响;而蓝藻的甲基膦酸代谢也被认为是水体好氧甲烷发生的来源之一。本文回顾了蓝藻膦酸酯利用与合成的研究历史,对目前蓝藻膦酸酯代谢过程生态风险与生态意义的研究进展进行了梳理,并对这一领域未来发展趋势进行了评述。
关键词:  蓝藻  蓝藻磷策略  膦酸酯生物利用  膦酸酯生物合成  好氧甲烷发生
DOI:10.18307/2023.0102
分类号:
基金项目:国家自然科学基金项目(31900090, 32270114, 3201101157)资助。
Advances on cyanobacteria phosphonate metabolism and its ecological significance
Peng Sihui1, Huang Shumin1, Zeng Ying1, Lin Lizhou2,3, Zheng Lingling2, Zhang Ying4, Song Lirong2, Shu Wensheng1, Li Chunlian1, Zhao Liang1
1.Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, P. R. China;2.State Key Laboratory of Freshwater Ecology and Biotechnology, Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Science, Wuhan 430072, P. R. China;3.Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, P. R. China;4.Yueqi High School, Zhejiang Province, Shaoxing 312050, P. R. China
Abstract:
As a group of newly identified bioavailable phosphorus sources, phosphonates are an important part of the aquatic organophosphorus pool and constitute a key component in the phosphorus redox cycle. In recent years, dozens of cyanobacterial strains have been demonstrated to participate in the utilization and biosynthesis of phosphonates, aiding in the understanding of how these strains are able to adapt to low concentrations of phosphate. The discovery of cyanobacteria phosphonate utilization promotes our knowledge of cyanobacterial phosphorus strategy and water phosphorus cycle. Intensive studies have shown the duel ecological role of phosphonates that serve both as a source of phosphorus and as a biocide for planktonics in aquatic ecosystems. They can damage the aquatic ecosystems by driving a selective decrease in phosphonate-sensitive portions with a corresponding increase in phosphonate-consuming cyanobacteria. On the other hand, cyanobacterial methylphosphonate catabolism is regarded as a promising mechanism of oxic methane production in the water. This paper reviewed the research history of cyanobacterial phosphonates utilization and biosynthesis. A summary of the research progress on the ecological risks and ecological significance of cyanobacterial phosphonates metabolism was also provided. Finally, we proposed comments on the future focus in this field.
Key words:  Cyanobacteria  cyanobacterial phosphorus strategy  phosphonate biodegradation  phosphonate biosynthesis  oxic methane production
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