Managing Global Resources for a Secure Future

2017 Annual Meeting | Oct. 22-25 | Tampa, FL

32 Soil Enzymes: Methods of Analyses and Mechanisms Oral (includes student competition)

Oral Session
SSSA Division: Soil Chemistry
Cycling of key nutrients (C, N, P, S) in soils is strongly mediated by soil enzymes. The goal of this topical session is to showcase advances in how soil enzymes are measured, conceptualized, and incorporated to enhance our understanding of biogeochemical processes in soils. Emphasis will be given to novel methods of soil enzyme assays and interdisciplinary work drawing on approaches and perspectives from traditional biochemistry. This includes soil-specific artifacts in activity assays, distinguishing among multiple enzyme sources, characterizing enzyme kinetics, linking enzyme activity with biochemical and microbiological processes, and enzyme-specific isotope signatures in soils.

SSSA Division: Soil Biology and Biochemistry

Monday, October 23, 2017: 8:00 AM-10:25 AM
Marriott Tampa Waterside, Room 12

Andrew J. Margenot , Sanjai J. Parikh and Deb P. Jaisi
8:00 AM
Introductory Remarks
8:05 AM
Microplate Format Assay of Soil Enzymes and Method Standardization.
Shiping Deng, Oklahoma State University; Richard P. Dick, Ohio State University
8:25 AM
Methodological Recommendations for Optimizing Assays of Enzyme Activities in Soil Samples.
Andrew J. Margenot, University of Illinois Urbana-Champaign; Yuhei Nakayama, University of California, Davis; Sanjai J. Parikh, University of California-Davis
8:40 AM
Soil Enzyme Activity Assays: Protocols and Interpretations.
Richard P. Dick, Ohio State University; Nicola Lorenz, Ohio State University; Shipeng Deng, Oklahoma State University
9:00 AM
Depolymerization of Organic Matter As a Bottleneck for C Cycling.
Delphine Derrien, INRA; Julien Sainte-Marie, INRA; Matthieu Barrandon, Lorraine University; Francis Martin, INRA; Eric Gelhaye, INRA; Laurent Saint-André, INRA
9:15 AM
9:45 AM
10:25 AM