DISSERTATION RESEARCH:Quantifying Changes in Lignin Chemistry During Photodegradation Versus Biotic Decomposition Using 2D NMR Spectroscopy
论文研究:使用 2D NMR 光谱量化光降解与生物分解过程中木质素化学的变化
基本信息
- 批准号:1406501
- 负责人:
- 金额:$ 1.95万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2014
- 资助国家:美国
- 起止时间:2014-07-01 至 2015-09-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Lignin is the second most abundant compound synthesized by plants, comprising approximately 15-40% of terrestrial biomass. Decomposition of lignin, therefore, is an important process influencing carbon storage and sequestration in terrestrial ecosystems. Microbial decomposition of lignin is slow, most likely because only a small group of microorganisms have the capacity to comsume these complex biological materials. Recent studies, however, suggest that lignin can be degraded by exposure to solar radiation (or photodegradation), which is purely a physical process. The role of photodegradation in lignin decomposition, and how this process interacts with microbial decomposition, are not well understood. The primary goal of this project is to examine how photodegradation and microbial decomposition processes combine to determine lignin chemical composition and decomposition. In this project, a novel approach using two dimensional nuclear magnetic (2D NMR) resonance spectroscopy will be used to examine the chemical composition of lignin at a molecular level, providing a clearer picture of the structure of lignin, deepening our understanding of how it is processed in the soil.The proposed study is important to society because of its relevance to our understanding of the carbon cycle, since the dynamics of lignin decomposition have a strong influence on carbon storage in soils in most ecosystems. Results of this research will contribute to a better understanding of lignin degradation, which is critical to unlocking decomposition processes more broadly. This study will also impact a broad audience by providing training and education opportunities for a graduate student researcher and an undergraduate student directly supported by this funding. It will also provide opportunities for undergraduates or senior high school students to develop related independent projects through ongoing K-12 outreach activities and links to the McNair Scholars Program at the University of California, Santa Barbara.
木质素是植物合成的第二丰富的化合物,约占陆地生物量的15%-40%。因此,木质素的分解是影响陆地生态系统碳储存和固存的重要过程。微生物分解木质素的速度很慢,很可能是因为只有一小部分微生物有能力消耗这些复杂的生物材料。然而,最近的研究表明,木质素可以通过暴露在太阳辐射(或光降解)下降解,这纯粹是一个物理过程。光降解在木质素分解中的作用,以及这一过程如何与微生物分解相互作用,还不是很清楚。这个项目的主要目标是研究光降解和微生物分解过程如何结合来确定木质素的化学成分和分解。在这个项目中,将使用一种新的方法,使用二维核磁共振(2D核磁共振)光谱在分子水平上检测木质素的化学组成,提供更清晰的木质素结构图像,加深我们对其在土壤中的处理方式的理解。由于木质素分解的动力学对大多数生态系统中土壤的碳储量有很大的影响,因此该研究对社会具有重要意义,因为它与我们对碳循环的理解有关。这项研究的结果将有助于更好地理解木质素降解,这对更广泛地揭示分解过程至关重要。这项研究还将通过为一名研究生研究员和一名由这笔资金直接支持的本科生提供培训和教育机会,影响广泛的受众。它还将通过正在进行的K-12外展活动以及与加州大学圣巴巴拉分校麦克奈尔学者计划的链接,为本科生或高中生提供发展相关独立项目的机会。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
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 }}
Jennifer King其他文献
1725: Toxicity and efficacy of SABR for central lung tumours: a single institution experience
1725年:SABR对中央肺肿瘤的毒性和功效:单一机构经验
- DOI:
10.1016/s0167-8140(24)02069-3 - 发表时间:
2024-05-01 - 期刊:
- 影响因子:5.300
- 作者:
Bailey Smith;Rachael Wooder;Kathryn Banfill;Claire Barker;Neil Bayman;Clara Chan;Joanna Coote;Corinne Faivre-Finn;Margaret Harris;Paul Hoey;Jennifer King;Laura Pemberton;Hamid Sheikh;Okezie Ucheikonne;Philip Whitehurst;David Woolf - 通讯作者:
David Woolf
128 - Implementing heart-sparing radiotherapy for lung cancer
128 - 肺癌保心脏放疗的实施
- DOI:
10.1016/s0169-5002(23)00555-x - 发表时间:
2023-04-01 - 期刊:
- 影响因子:4.400
- 作者:
Tom Marchant;Gareth Price;Alan McWilliam;Marcel Van Herk;Joe Wood;Catherine Harris;Jennifer King;Kathryn Banfill;Corinne Faivre-Finn - 通讯作者:
Corinne Faivre-Finn
Improving Throughput of Joint and Spine Patients From Phase I: A Rapid Improvement Event
- DOI:
10.1016/j.jopan.2016.04.047 - 发表时间:
2016-08-01 - 期刊:
- 影响因子:
- 作者:
Jennifer King;Michelle Lusby;Mary Perzanowski;Jenica Polk;Tracie Ackermann;Michelle Seanger;June Brouse;Kimberly England;Jennifer Grover - 通讯作者:
Jennifer Grover
Development and clinical feasibility testing of the Pain Treatment Planning Questionnaire
疼痛治疗计划问卷的开发和临床可行性测试
- DOI:
10.17225/jhp00155 - 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
Susan M. Tupper;J. Nilson;Jennifer King;P. Downe;N. Hodgson;T. Schlosser;K. Brose - 通讯作者:
K. Brose
Science Outreach Using Social Media: Oceanography from the Lab to the Public
使用社交媒体进行科学推广:从实验室到公众的海洋学
- DOI:
- 发表时间:
2018 - 期刊:
- 影响因子:2.8
- 作者:
A. Meyer;A. Pavlov;A. Rösel;J. Negrel;P. Itkin;L. Cohen;Jennifer King;S. Gerland;S. Hudson;L. de Steur;P. Dodd;L. Crews;Marius Bratrein;M. Granskog;Nick Cobbing - 通讯作者:
Nick Cobbing
Jennifer King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('Jennifer King', 18)}}的其他基金
Photodegradation of Plant Litter in Grassland Ecosystems: A Mechanism for Uncoupling C and N Biogeochemistry
草原生态系统中植物凋落物的光降解:C 和 N 生物地球化学解偶联的机制
- 批准号:
0935984 - 财政年份:2008
- 资助金额:
$ 1.95万 - 项目类别:
Continuing Grant
Photodegradation of Plant Litter in Grassland Ecosystems: A Mechanism for Uncoupling C and N Biogeochemistry
草原生态系统中植物凋落物的光降解:C 和 N 生物地球化学解偶联的机制
- 批准号:
0542935 - 财政年份:2006
- 资助金额:
$ 1.95万 - 项目类别:
Continuing Grant
DISSERTATION RESEARCH: Photodegradation as an Abiotic Mechanism in the Decomposition of Surface Litter
论文研究:光降解作为地表垃圾分解的非生物机制
- 批准号:
0608169 - 财政年份:2006
- 资助金额:
$ 1.95万 - 项目类别:
Standard Grant
相似国自然基金
Research on Quantum Field Theory without a Lagrangian Description
- 批准号:24ZR1403900
- 批准年份:2024
- 资助金额:0.0 万元
- 项目类别:省市级项目
Cell Research
- 批准号:31224802
- 批准年份:2012
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research
- 批准号:31024804
- 批准年份:2010
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research (细胞研究)
- 批准号:30824808
- 批准年份:2008
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Research on the Rapid Growth Mechanism of KDP Crystal
- 批准号:10774081
- 批准年份:2007
- 资助金额:45.0 万元
- 项目类别:面上项目
相似海外基金
Doctoral Dissertation Research: Quantifying behavior, nutrition, and energy balance in an ‘energetically frugal’ primate
博士论文研究:量化“精力节俭”灵长类动物的行为、营养和能量平衡
- 批准号:
2216551 - 财政年份:2022
- 资助金额:
$ 1.95万 - 项目类别:
Standard Grant
Doctoral Dissertation Research: Another piece of the Arctic carbon puzzle: quantifying emissions from Arctic lakes in drier regions
博士论文研究:北极碳难题的另一部分:量化干旱地区北极湖泊的排放
- 批准号:
2113908 - 财政年份:2021
- 资助金额:
$ 1.95万 - 项目类别:
Standard Grant
Doctoral Dissertation Research: Quantifying the Costs of Human Reproduction using the 'Epigenetic Clock'
博士论文研究:使用“表观遗传时钟”量化人类生殖成本
- 批准号:
1751912 - 财政年份:2018
- 资助金额:
$ 1.95万 - 项目类别:
Standard Grant
Doctoral Dissertation Research: The Development of a Framework for Quantifying Hydrologic Surface Connectivity of a Coastal River-Floodplain System
博士论文研究:量化沿海河流-洪泛区系统水文表面连通性框架的开发
- 批准号:
1657739 - 财政年份:2017
- 资助金额:
$ 1.95万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: Quantifying Rapid Adaptation in an Aquatic Invasive Algal Species.
论文研究:量化水生入侵藻类的快速适应。
- 批准号:
1701691 - 财政年份:2017
- 资助金额:
$ 1.95万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: Quantifying the Strength of Spatial Coexistence Mechanisms in Experimental Metacommunities
论文研究:量化实验元社区中空间共存机制的强度
- 批准号:
1601349 - 财政年份:2016
- 资助金额:
$ 1.95万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: Quantifying the tempo of genome theft in polyploid, female-only Ambystoma salamanders
论文研究:量化多倍体、雌性钝口蝾螈基因组盗窃的速度
- 批准号:
1600655 - 财政年份:2016
- 资助金额:
$ 1.95万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: Quantifying Nitrogen Limitation in the Gut Microbiota
论文研究:量化肠道微生物群中的氮限制
- 批准号:
1501495 - 财政年份:2015
- 资助金额:
$ 1.95万 - 项目类别:
Standard Grant
Doctoral Dissertation Research: Quantifying the Geomorphic Importance of Pre-Existing Fractures to Rates of Landscape Evolution
博士论文研究:量化现有裂缝的地貌对景观演化速率的重要性
- 批准号:
1303194 - 财政年份:2013
- 资助金额:
$ 1.95万 - 项目类别:
Standard Grant
Dissertation Research: Closing the nitrogen budget: Quantifying denitrification in an arid ecosystem undergoing nitrogen enrichment
论文研究:关闭氮预算:量化经历氮富集的干旱生态系统中的反硝化
- 批准号:
1309124 - 财政年份:2013
- 资助金额:
$ 1.95万 - 项目类别:
Standard Grant