黄渤海海草共附生微生物驱动的硫循环通量及耦合转化机制
结题报告
批准号:
92051119
项目类别:
重大研究计划
资助金额:
81.0 万元
负责人:
胡晓珂
学科分类:
海洋生态学与环境科学
结题年份:
2023
批准年份:
2020
项目状态:
已结题
项目参与者:
胡晓珂
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中文摘要
海草床是典型的近海生态系统之一,具有丰富的生产力和极高的生态服务价值。海草床退化已成为全球性问题,我国海草床退化尤为严重。高浓度硫化物对海草的毒性是引起海草床退化的重要原因之一。本项目提出“富营养化环境下,海草共附生微生物驱动的硫循环关键过程可改善海草床生态系统,进而缓解海草床退化”这一科学假说。本项目拟在黄渤海海草床区域开展以下创新性研究:1)阐明与海草共附生并参与硫循环的微生物群落结构、代谢方式及其与生境中硫元素的互作机制及调控关系;2)揭示引起海草床退化的硫化物阈值,构建微生物驱动的硫通量模型;3)筛选鉴定关键功能微生物,揭示其在驱动海草床生境中硫元素循环的耦合机制。本项目将系统研究海草床体系中由微生物驱动的硫循环转化过程和调控机制,解析海草床退化因素,为保护和修复海草床生态系统提供理论基础。
英文摘要
The seagrass bed is one of the typical coastal ecosystems with rich productivity and high ecological service value. The recession of seagrass bed is a serious problem, especially in China. The toxicity from high sulfur concentrations to seagrass is one of the most important reasons for causing the recession of seagrass bed. We hypothesize that the key processes of sulfur cycles driven by symbiotic and epiphytic microorganisms of seagrass in a eutrophic environment can improve the ecosystem of the seagrass bed and thus alleviate the recession of seagrass bed. This project is intended to carry out the following innovative researches in the seagrass areas of the Yellow Sea and Bohai Sea: 1) to analyze the community structure and metabolism of symbiotic and epiphytic microorganisms of seagrass, and to reveal the mechanism of their interactions and regulatory relationships with sulfur in the seagrass bed; 2) to estimate the threshold of sulfur content causing the recession of seagrass bed, and to build the model of sulfur flux driven by microorganisms; 3) to cultivate key microorganisms, and to reveal the coupling mechanism of sulfur cycle in the seagrass bed. The purpose of this project is to systematically study the sulfur cycle transformation process and regulatory mechanism driven by microorganisms in the seagrass bed system, analyze the factors of seagrass bed degradation, and provide a theoretical basis for the protection and restoration of seagrass bed ecosystem.
期刊论文列表
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专利列表
DOI:10.3390/jmse9111304
发表时间:2021-11-01
期刊:JOURNAL OF MARINE SCIENCE AND ENGINEERING
影响因子:2.9
作者:Liu, Pengyuan;Zhang, Haikun;Hu, Xiaoke
通讯作者:Hu, Xiaoke
DOI:10.13343/j.cnki.wsxb.20200618
发表时间:2021
期刊:微生物学报
影响因子:--
作者:孙延瑜;宋增磊;刘鹏远;张海坤;胡晓珂
通讯作者:胡晓珂
DOI:10.1016/j.jece.2022.107428
发表时间:2022-02
期刊:Journal of Environmental Chemical Engineering
影响因子:7.7
作者:Caixia Wang;Haikun Zhang;Pengyuan Liu;Defang Li;Qiusheng Zheng;Xiaoke Hu
通讯作者:Caixia Wang;Haikun Zhang;Pengyuan Liu;Defang Li;Qiusheng Zheng;Xiaoke Hu
DOI:10.1002/ece3.8939
发表时间:2022-05
期刊:Ecology and evolution
影响因子:2.6
作者:
通讯作者:
DOI:10.3389/fmars.2023.1245288
发表时间:2023-11-28
期刊:FRONTIERS IN MARINE SCIENCE
影响因子:3.7
作者:Liu,Pengyuan;Zou,Songbao;Hu,Xiaoke
通讯作者:Hu,Xiaoke
恶臭假单胞菌Pseudomonas putida F1石油烃降解细胞工厂的构建与应用
群体感应信号分子对不动杆菌降解石油烃的调控机制
海洋兼性厌氧石油烃降解菌的降解特性及其在环境中的行为特征
国内基金
海外基金