Photolysis and Photoproduction of Acrylate in Seawater and their Impact on the Marine Organosulfur Cycle

海水中丙烯酸酯的光解和光生成及其对海洋有机硫循环的影响

基本信息

项目摘要

This project would investigate the marine chemistry of the compound acrylate. Acrylate is a mostly overlooked by-product of a very well-studied process through which a compound known as DMSP (dimethylsulfoniopropionate), a compound produced by phytoplankton, is converted to the gas dimethylsulfide (known as DMS). This process is an important part of understanding the marine cycling of sulfur, and DMS plays a role in cloud formation and climate. Thus, these aspects of the conversion of DMSP to DMS have received considerable attention. On the other hand, very little is known about acrylate concentrations, fluxes, or impacts in the oceans, even though it is produced during the conversion of DMSP to DMS. Acrylate concentrations and fluxes should at times be substantial, especially in shallow-water coral reefs or during blooms of DMSP-rich phytoplankton that are common throughout the world's oceans and often harmful or toxic. It is likely that acrylate is a reactive form of marine organic matter that significantly impacts the carbon cycle and ecology of the upper ocean. This project will foster research and educational opportunities for undergraduates and one graduate student through several avenues including field work with international collaborators, attendance at national and local meetings, mentoring, preparing for and delivering college-level lectures, and presentations made to the general public at forums such as Syracuse's Milton J. Rubenstein Museum of Science. Results will be disseminated through peer-reviewed publications, media communications, web-based data bases, and presentations at scientific meetings, public forums and in the classroom. A three-year project is proposed to study the effect of sunlight on the formation and loss of acrylate in seawater, to model these processes in the water column, and to determine if photoproduction and photolysis are important pathways in the marine acrylate cycle in a shallow-water coral reef. Four objectives are planned to carry out this research: (1) synthesize radiocarbon-labeled DMSP as a source of radiocarbon-labeled acrylate for photolysis and uptake studies; (2) conduct laboratory experiments using a solar simulator to study the photolysis and photoproduction of acrylate in water and seawater under varying conditions (e.g., pH, temperature, oxygen concentration); (3) determine temperature and wavelength-dependent quantum yields for acrylate photolysis and acrylate photoproduction in seawater using a monochromatic irradiation system; and (4) conduct a field study at the Richard Gump Research Station to determine rates of photolysis, photoproduction and microbial consumption of acrylate in a shallow-water coral reef.
这个项目将研究化合物丙烯酸酯的海洋化学。丙烯酸酯是一种被广泛忽视的副产品,它是一种由浮游植物产生的化合物DMSP(二甲基磺酰丙酸酯)转化为气体二甲基硫化物(称为DMS)的过程。这一过程是了解海洋硫循环的重要组成部分,DMS在云的形成和气候中起着重要作用。因此,将DMSP转换为DMS的这些方面受到了相当大的注意。另一方面,人们对丙烯酸酯的浓度、通量或对海洋的影响知之甚少,尽管它是在DMSP转化为DMS的过程中产生的。丙烯酸酯的浓度和通量有时应该很大,特别是在浅水珊瑚礁或富含dmsp的浮游植物大量繁殖期间,这些浮游植物在世界海洋中很常见,通常是有害的或有毒的。丙烯酸酯可能是海洋有机物的一种活性形式,对海洋上层的碳循环和生态产生重大影响。该项目将通过几个途径为本科生和一名研究生提供研究和教育机会,包括与国际合作者进行实地考察、参加国家和地方会议、指导、准备和发表大学水平的讲座,以及在雪城大学米尔顿·j·鲁宾斯坦科学博物馆等论坛上向公众发表演讲。研究结果将通过同行评议的出版物、媒体传播、基于网络的数据库以及在科学会议、公共论坛和课堂上的介绍来传播。提出了一个为期三年的项目,研究阳光对海水中丙烯酸酯的形成和损失的影响,在水柱中模拟这些过程,并确定在浅水珊瑚礁中,光产生和光分解是否是海洋丙烯酸酯循环的重要途径。本研究计划开展四个目标:(1)合成放射性碳标记的DMSP作为放射性碳标记丙烯酸酯的光解和吸收研究的来源;(2)利用太阳模拟器进行实验室实验,研究在不同条件下(例如pH值、温度、氧浓度),丙烯酸酯在水和海水中的光解和光产;(3)利用单色辐照系统测定海水中丙烯酸酯光解和丙烯酸酯光生产的温度和波长相关量子产率;(4)在Richard Gump研究站进行实地研究,以确定浅水珊瑚礁中丙烯酸酯的光解、产光和微生物消耗速率。

项目成果

期刊论文数量(5)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Spatial and diel patterns of volatile organic compounds, DMSP-derived compounds, and planktonic microorganisms around a tropical scleractinian coral colony
  • DOI:
    10.3389/fmars.2022.944141
  • 发表时间:
    2022-10-13
  • 期刊:
  • 影响因子:
    3.7
  • 作者:
    Masdeu-Navarro,Marta;Mangot,Jean-Francois;Simo,Rafel
  • 通讯作者:
    Simo,Rafel
The metabolite dimethylsulfoxonium propionate extends the marine organosulfur cycle
  • DOI:
    10.1038/s41586-018-0675-0
  • 发表时间:
    2018-10
  • 期刊:
  • 影响因子:
    64.8
  • 作者:
    Kathleen Thume;Björn Gebser;Liangfu Chen;Nils Meyer;D. Kieber;G. Pohnert
  • 通讯作者:
    Kathleen Thume;Björn Gebser;Liangfu Chen;Nils Meyer;D. Kieber;G. Pohnert
DMS emissions from the Arctic marginal ice zone
  • DOI:
    10.1525/elementa.2020.00113
  • 发表时间:
    2021-07-14
  • 期刊:
  • 影响因子:
    3.9
  • 作者:
    Gali, Marti;Lizotte, Martine;Levasseur, Maurice
  • 通讯作者:
    Levasseur, Maurice
{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

David Kieber其他文献

David Kieber的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('David Kieber', 18)}}的其他基金

Collaborative Research: Seasonal Variability in refractory dissolved organic carbon fluxes associated with primary marine aerosol emitted from the oceans
合作研究:与海洋排放的初级海洋气溶胶相关的难熔溶解有机碳通量的季节变化
  • 批准号:
    2023104
  • 财政年份:
    2020
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Standard Grant
Collaborative Research: Coupled Ocean-Atmosphere Recycling of Refractory Dissolved Organic Carbon in Seawater
合作研究:海水中难熔溶解有机碳的海洋-大气耦合回收
  • 批准号:
    1536605
  • 财政年份:
    2015
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Standard Grant
Collaborative Research: Production Fluxes and Physicochemical Properties of Nascent Marine Aerosols: Implications for the Atmosphere and Upper Ocean
合作研究:新生海洋气溶胶的生产通量和物理化学性质:对大气和上层海洋的影响
  • 批准号:
    1129896
  • 财政年份:
    2012
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Standard Grant
Collaborative Research: Activity and abundance of photoheterotrophs fueled by photochemically-produced substrates
合作研究:光化学产生的底物驱动的光异养生物的活性和丰度
  • 批准号:
    1029569
  • 财政年份:
    2011
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Continuing Grant
Collaborative Research: Ecophysiology of DMSP and related compounds and their contributions to carbon and sulfur dynamics in Phaeocystis antarctica
合作研究:DMSP 和相关化合物的生态生理学及其对南极棕囊藻碳和硫动态的贡献
  • 批准号:
    0944686
  • 财政年份:
    2010
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Continuing Grant
Production and Fate of Acrylate in Seawater
海水中丙烯酸酯的产生和归宿
  • 批准号:
    0961831
  • 财政年份:
    2010
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Standard Grant
Collaborative Research: EAGER: Design, Fabrication, and Performance Evaluation of a Marine Aerosol Generator for Shipboard Deployment
合作研究:EAGER:用于舰载部署的海洋气溶胶发生器的设计、制造和性能评估
  • 批准号:
    0948216
  • 财政年份:
    2009
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Standard Grant
Collaborative Research: Photochemical Production of Radical Oxidants and Hydroperoxides from Organic Matter and Nitrate in Sea-Salt Aerosols
合作研究:利用海盐气溶胶中的有机物和硝酸盐光化学生产自由基氧化剂和氢过氧化物
  • 批准号:
    0343199
  • 财政年份:
    2004
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Continuing Grant
Collaborative Research: Impact of Solar Radiation and Nutrients on Biogeochemical Cycling of DMSP and DMS in the Ross Sea, Antarctica
合作研究:太阳辐射和营养物对南极洲罗斯海 DMSP 和 DMS 生物地球化学循环的影响
  • 批准号:
    0230499
  • 财政年份:
    2003
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Standard Grant
Collaborative Research: Production and Dynamics of DMSP and Related Compounds in Response to Oxidative Stress in Marine Phytoplankton
合作研究:海洋浮游植物氧化应激反应中 DMSP 及相关化合物的产生和动态
  • 批准号:
    0221106
  • 财政年份:
    2002
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Standard Grant

相似海外基金

Development of high-energy, high-intensity photon beam for vector K meson photoproduction experiments
开发用于矢量 K 介子光产生实验的高能、高强度光子束
  • 批准号:
    23H01201
  • 财政年份:
    2023
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Photoproduction of radicals and their effects on carbon dynamics in tropical lakes
自由基的光产生及其对热带湖泊碳动力学的影响
  • 批准号:
    23KK0191
  • 财政年份:
    2023
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Fund for the Promotion of Joint International Research (International Collaborative Research)
Study of the origin of hadron mass via eta-prime photoproduction inside a nucleus
通过原子核内的eta素光产生研究强子质量的起源
  • 批准号:
    21H04986
  • 财政年份:
    2021
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Grant-in-Aid for Scientific Research (S)
Systemes supramoleculaires inorganiques pour la photoproduction d'hydrogene en milieu aqueux
水环境中氢光生产的无机超分子系统
  • 批准号:
    553496-2020
  • 财政年份:
    2020
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Alexander Graham Bell Canada Graduate Scholarships - Master's
Investigation of open and hidden strangeness Baryons with the BGO-OD experiment at ELSA - here: K*(0,+) photoproduction off proton and neutron
通过 ELSA 的 BGO-OD 实验研究开放和隐藏的奇异重子 - 此处:质子和中子的 K*(0, ) 光产生
  • 批准号:
    405882627
  • 财政年份:
    2019
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Research Grants
J/Psi Photoproduction off the proton and neutron with CLAS12
使用 CLAS12 进行质子和中子的 J/Psi 光生产
  • 批准号:
    2284628
  • 财政年份:
    2019
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Studentship
Analysis of pi+pi- quasi-real photoproduction with CLAS12
使用 CLAS12 分析 pi pi-准真实照片制作
  • 批准号:
    2544794
  • 财政年份:
    2018
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Studentship
Using Coherent Pion Photoproduction to Measure Neutron Distributions in Nuclei
使用相干π介子光产生测量原子核中的中子分布
  • 批准号:
    1961027
  • 财政年份:
    2017
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Studentship
Transforming our understanding of DIC Photoproduction in Oceanic Waters
改变我们对 DIC 海洋水域摄影制作的理解
  • 批准号:
    1635618
  • 财政年份:
    2016
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Standard Grant
Anti-quark structures of proton and neutron studied by the photoproduction of pi and Delta
通过 pi 和 Delta 的光生现象研究质子和中子的反夸克结构
  • 批准号:
    16K05379
  • 财政年份:
    2016
  • 资助金额:
    $ 46.34万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了