Wednesday, 9 November 2005: 7:55 AM
Convention Center,, Ballroom F, Lower Level
273: Soil Biology and Soil N Dynamics
Sponsor:S03 Soil Biology & Biochemistry
Presiding:Ann-Marie Fortuna, NEPSWL, USDA-ARS
7:55 AM Introductory Remarks
8:00 AM273-1Does Diversity Beget Diversity? Relationships between Plant Heterozygosity, Available Soil N and Microbial Diversity. 
Jennifer A. Schweitzer, Northern Arizona University, School of Forestry Box 15018, Stephen C. Hart, Northern Arizona University, School of Forestry Box 15018, Thomas G. Whitham, Northern Arizona University, Donald Zak, University of Michigan
8:15 AM273-2New Ideas: Ectomycorrhizal Diversity and Function in Oak Woodlands. 
Caroline S. Bledsoe, University of California Davis, William R. Horwath, LAWR University of California Davis, Robert J. Zasoski, University of California-Davis, Xinhua He, University of California Davis, Melissa Morris, University of California Davis, Matt Smith, University of California Davis, Xiaomei Cheng, University of California Davis, Darlene Southworth, Southern Oregon University
8:30 AM273-3Inhibited Uptake of Soil N and Its Yield Impact for Continuous Rice Cropping in Arkansas. 
D.C. Olk, National Soil Tilth Lab., M.M. Anders, University of Arkansas
8:45 AM273-4Nitrifier Genomics: Links between Habitats and Functional Gene Diversity. 
Jeanette Norton, Utah State University, Martin G. Klotz, University of Louisville, Lisa Y. Stein, University of California, Riverside, Peter Bottomley, Oregon State University, Daniel J. Arp, Oregon State University
9:00 AM273-5Linking Nitrification and Microbial Community Dynamics of ß-Ammonia Oxidizers in Manured Soils of Contrasting Ecoregions.
Ann-Marie Fortuna, NEPSWL, USDA-ARS, C. Wayne Honeycutt, NEPSWL, USDA-ARS, Terence L. Marsh, CME, Dept. of Microbiology and Molecular Genetics, MI State Univ.
9:15 AM Break
9:30 AM273-6Nitrogen Processes of Soil Prokaryotic Communities at the Scale of Aggregate Fractions and Individual Microaggregates in Response to Tillage. 
Javier Izquierdo, University of Massachusetts, Amherst, Klaus Nüsslein, University of Massachusetts, Amherst
9:45 AM273-7Soil C and N in Patchy Landscapes of the Negev and Chihuahuan Deserts.
Thomas Thompson, University of Arizona, Thomas B. Wilson, University of Arizona, Eli Zaady, Jacob Blaustein Institute for Desert Research, Huancheng Pang, Soils and Fertilizers Institute, Dean A. Martens, USDA-ARS Southwest Watershed Research Center
10:00 AM273-8Earlier timing of plant detrital inputs increases soil microbial C availability and gross N transformation rates in a semiarid ecosystem. 
Toby Hooker, Utah State University - Department of Biology and the Ecology Center, John Stark, Utah State University - Department of Biology and the Ecology Center
10:15 AM273-9Field Studies of the Population Ecology of Ammonia Oxidizing Bacteria. 
Timothy R. Cavagnaro, Land, Air and Water Resources, Louise E. Jackson, Land, Air and Water Resources, Kate M. Scow, Land, Air and Water Resources, Krassimira R. Hristova, Land, Air and Water Resources
10:30 AM273-10Critique of Soil Nitrogen Tests Based on Amino Sugar Concentrations.
Laurence G. Greenfield, University of Canterbury
10:45 AM Adjourn

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