PRF/J: The Role of Limiting Resources in Controlling Mutualistic and Parasitic Effects of Mycorrhizae

PRF/J:限制资源在控制菌根互利和寄生效应中的作用

基本信息

  • 批准号:
    9403308
  • 负责人:
  • 金额:
    $ 6.96万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Fellowship Award
  • 财政年份:
    1994
  • 资助国家:
    美国
  • 起止时间:
    1994-06-01 至 1997-11-30
  • 项目状态:
    已结题

项目摘要

9403308 Johnson This research will ascertain what factors regulate mycorrhizal effectivity in relation to mutualistic or parasitic relationships with their host plants. To be tested is the hypothesis that enrichment of a limiting soil resource causes mycorrhizal plants to allocate less carbon to root exudates, giving a selective advantage to parasitic forms of vesicular - arbuscular mycorrhizal (VAM) fungi. Fieldwork will be conducted on 24 fertilized, irrigated, and control plots at two NSF Long Term Ecological Research (LTER) sites (Minnesota's Cedar Creek Natural History Area and Sevilleta in New Mexico). %%% VAM fungi, relatively better studied in agricultural systems, are poorly known in natural ecological communities and ecosystems despite their ubiquitousness in soils. Nevertheless even in managed agricultural settings, these fungi are still largely regarded as "black boxes" in comparison to our knowledge of other components of agroecosystems. A more thorough understanding of VAM biology and ecology is likely to lead to improved practices by ranchers and farmers with regard to successful mycorrhizal inoculation programs, while a more comprehensive appreciation of natural mycorrhizal biodiversity will undoubtedly lead to as yet unforeseen improvements in managed agricultural and forest systems. ***
9403308约翰逊 这项研究将确定哪些因素调节菌根的有效性与其宿主植物的互惠或寄生关系。 要测试的假设是,丰富的有限的土壤资源导致菌根植物分配较少的碳根分泌物,给一个选择性的优势,以寄生形式的泡状丛枝菌根(VAM)真菌。 将在两个NSF长期生态研究(LTER)地点(明尼苏达州的雪松溪自然历史区和新墨西哥州的塞维利亚)的24个施肥、灌溉和对照地块上进行实地调查。 VAM真菌在农业系统中研究相对较好,但在自然生态群落和生态系统中知之甚少,尽管它们在土壤中无处不在。 然而,即使在管理的农业环境中,与我们对农业生态系统其他组成部分的了解相比,这些真菌在很大程度上仍被视为“黑匣子”。 一个更彻底的了解VAM生物学和生态学可能会导致改进的做法,牧场主和农民方面成功的菌根接种计划,而更全面的欣赏自然菌根生物多样性无疑会导致尚未预见的改善管理农业和林业系统。 ***

项目成果

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Nancy Johnson其他文献

IS '97: model curriculum and guidelines for undergraduate degree programs in information systems
IS 97:信息系统本科学位课程示范课程和指南
  • DOI:
  • 发表时间:
    1996
  • 期刊:
  • 影响因子:
    0
  • 作者:
    G. Davis;Acm Co;J. Gorgone;J. Daniel Couger;Ais Co;David L. Feinstein;Aitp;H. Longenecker;Ais J Daniel Couger;John Werth;John C Anderson;Iaim A Milton Jenkins;Jack Baroudi;Thomas T Clark;Jon D. Clark;Pat Dickerson;Jane Finley;G. M. Kasper;P. Licker;Gary Mollere;Ibm J David;Naumann;J. Nunamaker;Rob Abbott;Ruby Tuesday;Robert M Aiken;Marvin Albin;Paulette S Alexander;Stephen L Allen;Allyson Anderson;Julius A Archibald;Timothy G. Babbitt;Lloyd W. Bartholome;Colin E Bell;G. Bergum;Louis J Berzai;Charles P. Bilbrey;James Madison;Roy A Boggs;Glenn Boswell;A. College;Bruce Bosworth;St John;Daniel Briscoe;Donald A Carpenter;Gena C Casas;Frank Cheatham;Eli Boyd Cohen;Leland M Courtney;James H. Cross II;Robert A Dager;Missouri State;R. J. Daigle;Robert H. Dependahl;David P. Doane;Richard J Dolan;Nj Dca;Marianne J D Onofrio;M. V. Doran;Paul Dorsey;Doris G Duncan;J. D. Durham;Annette Easton;K. L. Elder;Kennesaw State College;R. Ender;Kurt J Engemarm;Jane Fedorowicz;Bentley College;J. Fendrich;Ernest Ferguson;Kirk D. Fiedler;Richard T Firtko;Anne E Fleury;Raymond O. Folse;Michael Gibson;M. Granger;John P Grillo;William E Grimsley;T. Hain;J. E. Haines;David Hale;Wolpert Engineering;Douglas F Hale;Dianne Hamilton;Albert Harris;Eric Heath;John W Henry;Mark Hensel;Kerry Henson;Gerald Hershey;Thomas E Hilton;W. C. Hobart;J. Hoffer;James E Holden;C. Holsapple;Robert L Horton;Mark W Huber;Frank R. Hunsicker;West Georgia College;Robby C Jackard;Durward P Jackson;David J Jankowski;George H Jenkins;Nancy Johnson;Sharon G Johnson;Bruce W Johnston;Eleanor Jordan;M. Kahn;Vernon Kam;Yasuko Kaminuma;Bonnie Kaplan;Dick Kastory;Georgia College;Marcus E Keuerman;J. Kendall;K. Kendall;Tom Keon;William J. Kettinger;Betty Kieen;Frederick Kohun;Robert Morris College;Steve Kolars;Antonio San;Charles W College;Koop;D. Langan;Anita J Lasalle;Francis Lau;William E Leigh;R. Leitheiser;Stanley X Lewis;D. Lidtke;Diane L Lockwood;A. Lorents;Charles M Lutz;Donal T. MacVeigh;St Peter 's College;Janles Magruder;Brenda Masseth;St John 's University;Peter W C Mather;James R Marsow;Fred J Maryansld;Martha C Mccormick;W. M. Mccracken;Linda J Menard;David Miller;Rosenbluth Intemational;Diane Miller;Ken Modesitt;James E Moon;Gerald Morris;Kathleen Moser;Michael G Murphy;Michael Myers;A. College;H. Narang;Fred Newman;Peter A Ng;K. Olmosk;West Virginia;Graduate College;John Olson;Thomas R. Panko;Raymond Papp;J. Pardue;John Pessford;J. Pick;Michael M. Pickard;Stephen F Austin;John R Pickett;Georgia Southern College;W. Pinney;Carol Pollard;Leslie R Porter;Jim Prado;Oregon State;College R Leon Price;Brian J. Reithel;Ann Roberts;Mitchell College;Bettye Robinson;Bruce Rollier;Alan Russell;Jo Ruta;Dolly Samson;Bruce M. Saulnier;George Schell;Ken Schmidt;Ken Shaw;Steven John Simon;R. Skovira;Edward M Solinsld;E. Stohr;G. E. Strouse;John Talbert;Shannon Taylor;Jack Thompson;Gerald J. Tillman;Reza Torkzadeh;John Trimble;Morris Brown College;Warer A Ullrich;William O Vandongen;St. Norbert College;Murali Varanasi;J. L. Walton;Yao Fu;Wang;Steven W Wendt;Marv Wielard;Joe Wiley;Oklahoma State;Jan R Williams;Jennifer Williams;Kay Williams;Boeing Information;Support Services;G. W. Willis;Michael Wolfe;Pat Woodworth;David J Wright;Luis Zornosa;J. Couger
  • 通讯作者:
    J. Couger
It Takes a Village: A Community Partnership Model in Caring for the Homeless
举全村之力:照顾无家可归者的社区合作模式
  • DOI:
    10.1097/naq.0000000000000031
  • 发表时间:
    2014
  • 期刊:
  • 影响因子:
    0
  • 作者:
    D. Zazworsky;Nancy Johnson
  • 通讯作者:
    Nancy Johnson
Halomonas johnsoniae: review of a medically underappreciated genus of growing human importance.
约氏盐单胞菌:对医学上未被充分重视但对人类重要性日益增长的属的回顾。
Nutrition messages designed for specific audiences of working mothers
  • DOI:
    10.1016/s0022-3182(85)80018-2
  • 发表时间:
    1985-03-01
  • 期刊:
  • 影响因子:
  • 作者:
    Wilma Crumley;Hazel Fox;Kathleen Newell;Nancy Johnson
  • 通讯作者:
    Nancy Johnson
Hawthorne Effect in Hand Hygiene Compliance Rates
霍桑效应对手部卫生达标率的影响
  • DOI:
  • 发表时间:
    2016
  • 期刊:
  • 影响因子:
    0
  • 作者:
    M. Niles;Nancy Johnson
  • 通讯作者:
    Nancy Johnson

Nancy Johnson的其他文献

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{{ truncateString('Nancy Johnson', 18)}}的其他基金

URM: Life Sciences Strengthened by a Spectrum of World Views
URM:生命科学通过一系列世界观得到加强
  • 批准号:
    1041255
  • 财政年份:
    2010
  • 资助金额:
    $ 6.96万
  • 项目类别:
    Standard Grant
Collaborative research: Effects of herbivores and mycorrhizas on N-fixers across soil and climate gradients in the Serengeti
合作研究:食草动物和菌根对塞伦盖蒂土壤和气候梯度固氮剂的影响
  • 批准号:
    0842327
  • 财政年份:
    2009
  • 资助金额:
    $ 6.96万
  • 项目类别:
    Continuing Grant
UMEB: Melding Science with Traditional Ways of Knowing
UMEB:将科学与传统认知方式相融合
  • 批准号:
    0603233
  • 财政年份:
    2006
  • 资助金额:
    $ 6.96万
  • 项目类别:
    Continuing Grant
Dissertation Research: Can Enrichment of Micronutrients Help Restore Biological Soil Crusts to Desertified Landscapes?
论文研究:微量营养素的富集可以帮助恢复荒漠化景观的生物土壤结皮吗?
  • 批准号:
    0608277
  • 财政年份:
    2006
  • 资助金额:
    $ 6.96万
  • 项目类别:
    Standard Grant
Testing a Unified Hypothesis of Mycorrhizal Function
检验菌根功能的统一假设
  • 批准号:
    0316136
  • 财政年份:
    2003
  • 资助金额:
    $ 6.96万
  • 项目类别:
    Continuing Grant
UMEB: Human Impacts on Ecosystems of the Colorado Plateau
UMEB:人类对科罗拉多高原生态系统的影响
  • 批准号:
    0080156
  • 财政年份:
    2000
  • 资助金额:
    $ 6.96万
  • 项目类别:
    Standard Grant
Functioning of Grassland Mycorrhizae Under Elevated CO2 and Nitrogen
高二氧化碳和氮条件下草原菌根的功能
  • 批准号:
    9806529
  • 财政年份:
    1998
  • 资助金额:
    $ 6.96万
  • 项目类别:
    Standard Grant
Cross-Site: Collaborative Research: Mycorrhizal Responses to Nitrogen Eutrophication at Five Mesic and Semi-Arid Sites
跨站点:合作研究:五个中干旱和半干旱地区菌根对氮富营养化的反应
  • 批准号:
    9796168
  • 财政年份:
    1997
  • 资助金额:
    $ 6.96万
  • 项目类别:
    Standard Grant
Cross-Site: Collaborative Research: Mycorrhizal Responses to Nitrogen Eutrophication at Five Mesic and Semi-Arid Sites
跨站点:合作研究:五个中干旱和半干旱地区菌根对氮富营养化的反应
  • 批准号:
    9527317
  • 财政年份:
    1996
  • 资助金额:
    $ 6.96万
  • 项目类别:
    Standard Grant
Research Initiation For Minority Institution Improvement: Continuing Investigation of Generalized Index Sets
少数族裔制度改进的研究启动:广义指数集的持续调查
  • 批准号:
    7704553
  • 财政年份:
    1977
  • 资助金额:
    $ 6.96万
  • 项目类别:
    Standard Grant

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Defining the Role of Senescence in Limiting Therapeutic Efficacy of CAR T Cells
定义衰老在限制 CAR T 细胞治疗效果中的作用
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    10729505
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    2020
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职业生涯:Mn(III) 在限制 Mn(III/IV) 氧化物对 As(III) 的氧化转化中的作用
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肿瘤负荷在限制 PD-1 阻断持久重生中的作用
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