Dr. Mostafa Elshahed

EPSCoR Research Focus: 
Microbial Conversion
Associate Professor
Microbiology and Molecular Genetics
Oklahoma State University
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B.S. | Pharmaceutical Science | Cairo University, Egypt | 1993
Ph.D. | Microbiology | University of Oklahoma | 2001
Research Interests: 

Cellulosic Bioenergy Research at the Microbial Ecology and Environmental Genomics Laboratory

Dr. Elshahed and his colleagues are focusing their biofuel research in the following areas:

  • Discovering the diversity, ecophysiology, and metabolic capabilities o f novel microorganisms
  • Study of the bacterial diversity in soil habitats, with special emphasis on the rare members of the community (members of the rare soil biosphere), and utilization of various phylogenetic and statistical approaches to identify, quantify, and describe the observed patterns of bacterial diversity in soil
  • Investigating the potential of anaerobic fungi in biofuel research
  • Identifying natural bacterial communities in oil and natural gas reservoirs, and exploring new approaches for the use of microorganisms to enhance oil recovery and improve oil quality

Pictured (above): The Microbial Ecology and Environmental Genomics Laboratory

Research Assistants Funded by EPSCoR: 

Dr. Noha H. Youssef | Postdoctoral fellow | noha@okstate.edu
Bryan Couger | Graduate assistant | mcouger@okstate.edu
Audra Liggenstoffer | Graduate assistant | liggens@okstate.edu

Key Publications: 

Bold items indicate OK EPSCoR-supported research

  • Sheik C.S., W.H. Beasley, M.S. Elshahed, X. Zhou, Y. Luo, and L.R. Krumholz 2011. Effect of warming and drought on grassland microbial communities. The ISME Journal. doi:10.1038/ismej.2011.32. DOI:10.1038/ismej.2011.32.
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  • Struchtemeyer C.G., J.P. Davis, and M.S. Elshahed 2011. Influence of the Drilling Mud Formulation Process on the Bacterial Communities in Thermogenic Natural Gas Wells of the Barnett Shale. Appl. Environ. Microbiol. 77: 4744-4753. 
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  • Bühring, S. I., H. M. Jonkers, T. Ertefai, M. S. Elshahed, L. R. Krumholz, and K-U Hinrichs. "Insights into the Chemotaxonomic Composition and Carbon Cycling in Phototrophic Microbial Mats in an Artesian Sulfur-rich Spring (Zodletone, Oklahoma, USA), a Possible Analogue for Ancient Microbial Mat Systems." Geobiology 9 (2011): 166-79.
  • Elshahed, M. "Microbiological Aspects of Biofuel Production: Current Status and Future Directions." Journal of Advanced Research. 1 (2010): 103-11. SciVerse. DOI: 10.1016/j.jare2010.03.001. 
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  • Heise, S. R., M. S. Elshahed, and S. E. Little. "Bacterial Diversity in Amblyomma Americanum with a Focus on Members of the Genus." Rickettsia. Journal of Medical Entomology. 47 (2010): 258-68. Ingenta Connect.  DOI: 10.1603/ME09197.
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  • Liggenstoffer, A. S., N. H. Youssef, M. B. Couger, and M. S. Elshahed. "Phylogenetic Diversity and Community Structure of Anaerobic Fungi (Phylum Neocallimastigomycota) in Ruminant and Non-ruminant Herbivores." The ISME Journal. 4 (2010): 1225-235. DOI:10.1038/ismej.2010.49. 
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  • Savage, K. N., L. R. Krumholz, L. M. Grieg, V. A. Parisi, J. M. Suflita, J. Allen, R. P. Philp, and M. S. Elshahed. "Biodegradation of Low Molecular Weight Alkanes under Mesophilic, Sulfate-reducing Conditions: Evidence, Metabolic Intermediates, and Community Patterns." FEMS Microbiology Ecology. 72 (2010): 485-95. Wiley Online Library. DOI:10.1111/j.1574-6941.2010.00866.x.
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  • Youssef, N. H., M. B. Couger, and M. S. Elshahed. "Fine-Scale Bacterial Beta Diversity within a Complex Ecosystem (Zodletone Spring, OK, USA): The Role of the Rare Biosphere." Ed. N. Ahmed. PLoS ONE 5.8 (2010): E12414. DOI:10.1371/journal.pone.0012414.
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  • Spain, A. M., L. R. Krumholz, and M. S. Elshahed. "The ISME Journal - Abundance, Composition, Diversity and Novelty of Soil Proteobacteria." Nature Publishing Group: Science Journals, Jobs, and Information. The ISME Journal, 30 Apr. 2009. DOI:10.1038/ismej.2009.43.
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  • Youssef, N. H., C. Sheik, L. R. Krumholz, F. Z. Najar, B. A. Roe, and M. S. Elshahed. "A Comparative Study of Species Richness Estimates Obtained Using Nearly Complete Fragments and Simulated Pyrosequencing-generated Fragments in 16S RRNA Gene-based Environmental Surveys -- Youssef Et Al., 10.1128/AEM.00592-09." Applied and Environmental Microbiology. PubMed Central, 26 June 2009. DOI:10.1128/AEM.00592-09.
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  • Davis, J. P., N. H. Youssef, and M. S. Elshahed. "Assessment of the Diversity, Abundance, and Ecological Distribution of Members of Candidate Division SR1 Reveals a High Level of Phylogenetic Diversity but Limited Morphotypic Diversity." Applied and Environmental Microbiology 75.12 (2009): 4139-148. PubMed Central, 24 Apr. 2009. DOI:10.1128/AEM.00137-09.
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  • Youssef, N. H., M. S. Elshahed, and M. J. McInerney. "Microbially-mediated Processes in Oil Fields: Culprits, Problems, and Opportunities." Advances in Applied Microbiology 66 (2009): 141-251. SciVerse. DOI:10.1016/S0065-2164(08)00806-X.
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  • Youssef, N. H., and M. S. Elshahed. "The ISME Journal - Diversity Rankings among Bacterial Lineages in Soil." Nature Publishing Group: Science Journals, Jobs, and Information. The ISME Journal, 6 Nov. 2008. DOI:10.1038/ismej.2008.106.
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Curriculum Vitae: