Managing Global Resources for a Secure Future

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

235 Speciation and Bioavailability of Nutrients and Pollutants in the Rhizosphere Oral (includes student competition)

Oral Session
SSSA Division: Soil Chemistry
Root activities and related rhizosphere processes are known to modify soil environment around roots (rhizosphere) in terms of physical, chemical, biochemical, and biological properties and processes. Thus, rhizosphere processes have a significant control on the environmental fate of chemical elements in terrestrial ecosystems, such as element accumulation or depletion, transport processes such as mass flow and diffusion, and chemical solubility, speciation, and bioavailability of both nutrients and pollutants in the rhizosphere. This session is proposed to attract presentations from on the new research results available in this important research arena.

Approved for SW 1.5 CEUs

Tuesday, October 24, 2017: 10:40 AM-12:00 PM
Marriott Tampa Waterside, Grand Ballroom I

Uttam K. Saha
10:40 AM
Introductory Remarks
10:45 AM
Root Hairs Increase Rhizosphere Extension and Carbon Input to Soil.
Maire Holz, Georg-August University of Goettingen; Mohsen Zarebanadkouki, Georg-August University of Goettingen; Yakov Kuzyakov, RUDN University; Johanna Pausch, Frau; Andrea Carminati, Universität Göttingen
11:00 AM
Arsenic Cycling in the Rice (Oryza sativa L.) Rhizosphere: Evidence for the Passive Transport of Arsenite at Lateral Root Junctions and Root Apices.
Angelia L. Seyfferth, University of Delaware; Samuel M. Webb, Stanford Synchrotron Radiation Lightsource; Jean Ross, University of Delaware
11:15 AM
Effect of Plant Invasive Species on the Composition of Soil Organic Matter.
Gurbir Singh Dhillon, University of Saskatchewan; Eric Lamb, University of Saskatchewan; Steven Siciliano, University of Saskatchewan; Derek Peak, University of Saskatchewan
11:30 AM
Climate Change Coupled with Elevated Soil Arsenic Will Decrease Rice Productivity and Grain Quality.
E. Marie Muehe, Stanford University; Tianmei Wang, Stanford University; Scott Fendorf, Stanford University
11:45 AM
Structural Configuration of Arsenate on Nano Goethite Surface Using EXAFS and DFT Calculation.
Junho Han, Seoul National University; Seoyeon Lee, Seoul National University; Hee-Myong Ro, Seoul National University
12:00 PM