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Mussie Y. Habteselassie Crop and Soil Sciences UGA Griffin Campus

THE SOIL MICROBIOLOGY PROGRAM. P & T Presentation 2013 SPRING FACULTY MEETING, MACON, GA. Mussie Y. Habteselassie Crop and Soil Sciences UGA Griffin Campus. INTRODUCTION. 70% research & 30% teaching appointment Outline: Research Program (sample projects) Teaching Responsibilities.

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Mussie Y. Habteselassie Crop and Soil Sciences UGA Griffin Campus

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  1. THE SOIL MICROBIOLOGY PROGRAM P & T Presentation 2013 SPRING FACULTY MEETING, MACON, GA Mussie Y. Habteselassie Crop and Soil Sciences UGA Griffin Campus

  2. INTRODUCTION • 70% research & 30% teaching appointment • Outline: • Research Program (sample projects) • Teaching Responsibilities

  3. RESEARCH PROGRAM • Environmental Soil Microbiology Program (ESM) I. The Ecology Of Human And Animal Pathogens In Soils • II. Environmental Services Of Soil Microbial Community • III. Microbial Water Quality http://www.soilmicrobiology.griffin.uga.edu/index.html

  4. Survival Transmission to produce I. Ecology Of Human And Animal Pathogens In Soils Ecology of pathogens in soils • Use of model microorganisms • Lux/GFP marked E. coli O157:H7/Salmonella spp • Antibiotic resistant E. coli/Salmonella spp

  5. Current Projects • 1. Salmonella And Norovirus Survival In Organic and Conventional Soils • 2. The Role Of Microbial Diversity And Activity In The Suppression Of Salmonella Persistence In Soils • 3. Soil Organic Matter Accumulation On Gloves During Lettuce Harvest and Its Effect On Pathogen Persistence: Co-PI On $338,414 Grant From UC Davis.

  6. Results so far….

  7. II. Environmental Services of Soil Microorganisms N & C cycling Soil microbes & their environmental services Pollutant remediation • Approach • Molecular microbiology – targeting functional genes • Stable isotope techniques – process characterization

  8. Current Projects • 4. N Cycling Under Contrasting Agricultural Management Systems • Organic vs conventional farming systems • USDA-AFRI Microbial Communities Program. Habteselassie, M.Y. (Co-PI):$499,894 • Closely collaborates with Miguel Fig. Simplified Internal Soil N Cycle

  9. Results so far….

  10. Current Projects… • 5. The Dynamics of Ammonia Oxidizers In Pasture Lands Under Long-term Poultry Litter Application • Eatonton and Watkinsville long term field plots • In collaboration with Miguel Cabrera

  11. Results so far…. • Changes in soil N cycling organisms following repeated poultry litter application Ammonia Oxidizing Bacteria Ammonia Oxidizing Archaea Control Plots Treatment Plots – Litter @ different rates Treatment Plots – Litter @ different rates Control Plots

  12. Current Projects… • 6. Volatile Organic Compounds (VOC) Metabolizing Bacteria In Indoor Plants In collaboration with S. Pennisi and S. Kays - Horticulture

  13. South Korea: huge interest in phytoremediation

  14. Results so far….

  15. III. Microbial Water Quality Sources Emphasis Survival in contaminated water Food safety link – use of contaminated water for irrigation

  16. Current Project • 7. Impacts of On-site Wastewater Treatment Systems (OWTS) On Water Quality and Quantity In Streams Of Urbanizing Watersheds of Metro-Atlanta Area • Supported by $567,000 NIFA Grant: M. Habteselassie, J. Clarke, D. Radcliffe, Q. Huang, M. Risse, E. Bauske, J. Mullen

  17. Study Site

  18. Results so far… 2012:  Habteselassie, M.Y. Radcliffe, D., Clarke, J.,… Evaluation of the impact of on-site wastewater treatment systems on water quality in urbanizing watersheds. In Annual Meetings Abstracts. ASA, CSSA, and SSSA, Madison, WI. 2012:  Habteselassie, M.Y. Radcliffe, D., Clarke, J.,… Watershed-scale impacts of on-site wastewater treatment systems on water quality and quantity: Results for Water Quality Indicators. In Land Grant/See Grant National Water Conference, Portland, OR. 2012:  Radcliffe, D., Clarke, J., Habteselassie, M.Y.,… Watershed-scale impacts of on-site wastewater treatment systems on water quality and quantity: Results for nitrogen and base-flow yield. In Land Grant/See Grant National Water Conference, Portland, OR.

  19. Results so far…

  20. TEACHING

  21. …TEACHING Environmental Resources Science Major @ the Griffin Campus 43%

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