Abasiofiok Mark Ibekwe

U. S. Salinity Lab, USA

The broad objectives of Dr Ibekwe’s research assignment are to (1) develop improved methodologies on detection, quantification, and characterization of pathogen survival in different environmental matrices; (2) determine inactivation/survival rates and transport characteristics of fecal coliform and pathogens from manure sources to surface or ground water; (3) determine sources of nonpoint fecal pollution to urban watershed using bacterial source tracking technology; (4) quantify important mechanisms influencing the transport and retention of pathogenic microorganisms in subsurface environments; (5) adapt and improve numerical models for simulating the environmental transport and fate of pathogenic microorganisms, and (6) use models to explore implications of various pathogen transport mechanisms and fate in heterogeneous systems, to develop best management practices, and to assess risk of contamination of food and water resources. Since pathogens are part of the total microbial community composition, soil microbial communities are analyzed by innovative microbiological methods including new molecular ecological methods for analysis of community DNA extracted from soil, feces, compost, manure, wastewater, irrigation water, rhizosphere, etc using denaturing gradient gel electrophoresis (DGGE), terminal restriction fragment length polymorphism (T-RFLP), cloning and sequencing, pyrosequencing, and bioinformatics analysis of DNA sequences

Biography Updated on 17 November 2011

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