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Mostafa S. Elshahed

Assistant Professor
Oklahoma State University
Department of Microbiology and Molecular genetics
1110 S. Innovation Way
Stillwater, OK 74074


1988-1993 Cairo University, Cairo, EG: BS in Pharmaceutical Science

1996-2001 University of Oklahoma: PhD in Microbiology


Liggenstoffer AS, NH Youssef, MB Couger, and MS Elshahed* 2010. Phylogenetic diversity and community structure of anaerobic fungi (Phylum Neacallymastigales) in ruminant and non-ruminant herbivores The ISME J. (In Press)

Bühring SI, SM Sievert, HM Jonkers, T Ertefai, MS Elshahed, LR Krumholz, and K-U Hinrichs 2010. 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 (In revision).

Heise SR, MS Elshahed, TC Holbrook, and SE Little. 2010. Bacterial community in STARI-associated Amblyomma americanum, Oklahoma. Emerg Infect Dis (Submitted).

Sheik CS, WH Beasley, MS Elshahed, X Zhou, Y Luo, G Wiley, FZ Najar, S Macmil, C Qu, P Wang, BA Roe, and LR Krumholz 2010. Simulated global warming coupled to drought alters microbial communities in a tallgrass prairie (Submitted).

MS Elshahed* 2010 Microbiological aspects of biofuel production: current status and future directions. J. Adv. Res. 1:103-111.

Savage KN, LR Krumholz, LM Gieg, VA Parisi, JM Suflita, J Allen, RP Philp, and MS Elshahed* 2010. Biodegradation of low molecular weight alkanes under mesophilic, sulfate-reducing conditions: evidence, metabolic intermediates, and community patterns. FEMS Microbiol. Ecol. 72:485-495

SR Heise, MS Elshahed, and SE Little 2010. Bacterial diversity in Amblyomma americanum with a focus on members of the genus Rickettsia. J. Med. Entymol. J. Med. Entymol. 47: 258-268.

Youssef, NH, C Sheik, LR Krumholz, FZ Najar, BA Roe, and MS Elshahed 2009. A Comparative study of species richness estimates obtained using near complete fragments and simulated pyrosequencing-generated fragments in 16S rRNA gene-based environmental surveys. Appl. Environ. Microbiol. 75: 5227-5236.

Davis, JP, NH Youssef, and MS Elshahed 2009. Assessment of the diversity, abundance, and ecological distribution of candidate division SR1 reveals a high phylogenetic, but a limited morphotypic diversity. Appl. Environ. Microbiol. 75: 4139-4148.

Spain, AM, LR Krumholz, and MS Elshahed 2009. Abundance, Composition, Diversity, and Novelty of Soil Proteobacteria. The ISME J. 3: 992-1000.

Youssef NH, MS Elshahed, and MJ McInerney 2009. Microbially-mediated processes in oil fields: culprits, problems, and opportunities. Adv. Appl. Microbiol. 66:141-251.

Youssf NH, and MS Elshahed 2009. Diversity rankings among bacterial lineages in soil. The ISME Journal 3: 305-313.

Elshahed MS, NH Youssef, AM Spain, C. Sheik, FZ Najar, LO Sukharnikov, BA Roe, JP Davis, PD Schloss, VL Bailey, and LR Krumholz 2008. Novelty and uniqueness patterns of rare members of the soil biosphere. Appl. Environ. Microbiol. 74:5422-5428.

Youssef NH, and MS Elshahed 2008. Species richness in soil bacterial communities: a proposed approach to overcome sample size bias. J. Microbiol. Methods. 75:86-91.

Savage KN, LR Krumholz, A Oren and MS Elshahed 2008. Halosarcina pallida gen. nov., sp. nov., a halophilic Archaeon Isolated from Zodletone spring in southwestern Oklahoma. Int. J. Syst. Evol. Microbiol. 58:856-860.

Elshahed MS, NH Youssef, Q Luo, FZ Najar, BA Roe, TM Sisk, SI Buhring, K-U Hinrichs, and LR Krumholz 2007. Phylogenetic and metabolic diversity of Planctomycetes from anaerobic sulfide- and sulfur-rich Zodletone spring, OK. Appl. Environ. Microbiol. 73:4707-4716.

Spain AM, AD Peacock, J Istook, MS Elshahed, FZ Najar, BA Roe, DC White, and LR Krumholz 2007. Identification and isolation of a Castellaniella species important during biostimulation of an acidic nitrate- and uranium-contaminated aquifer. Appl. Environ. Microbiol. 73:4892-4904.

Savage KN, LR Krumholz, A Oren and MS Elshahed 2007. Haladaptatus paucihalophilus gen. nov., sp. nov., a halophilic archaeon isolated from a low-salt, high-sulfide spring. Int. J. Syst. Evol. Microbiol. 57:19-24.

Luo Q, LR Krumholz, F Z Najar, BA Roe, AD Peacock, DC White, and MS Elshahed 2005. Diversity of the microeukaryotic community in sulfide-rich Zodletone spring. Appl. Environ. Microbiol. 71: 6175-6184.

Elshahed MS, FZ Najar, M Aycock, C. Qu, BA Roe, and LR Krumholz 2005. Metagenomic analysis of the microbial community at Zodletone spring: Insights into the genome of novel Candidate division OD1. Appl. Environ. Microbiol. 71: 7958-7962.

Structemeyer CG, MS Elshahed, KE Duncan, and MJ McInerney 2005. Evidence for acetoclastic methanogenesis in the presence of sulfate in a gas condensate-contaminated aquifer. Appl. Environ. Microbiol. 71:5348-5355.

Senko JM, BS Campbell, JR Henricksen, MS Elshahed, TA Dewers, and LR Krumholz 2004. Barite deposition mediated by phototrophic sulfide oxidizing bacteria. Geochem. Cosmochem. Acta. 68:773-780.

Elshahed MS, KN Savage, A Ventosa, M Carmen-Gutierrez, A Oren, and LR Krumholz 2004. Haloferax sulfurifontis sp. nov., a halophilic archaeon isolated from a sulfide and sulfur-rich spring. Int. J. Syst. Evol. Microbiol. 54:2275-2279.

Elshahed MS, FZ Najar, BA Roe, A Oren, TA Dewers, and LR Krumholz 2004. Survey of archaeal diversity reveals abundance of halophilic Archaea in a low-salt, anaerobic sulfur spring. Appl. Environ. Microbiol. 70:2230-2239.

Elshahed MS, JM Senko, FZ Najar, SM Kenton, BA Roe, TA Dewers, JR Spear, and LR Krumholz 2003. Bacterial diversity and sulfur cycling in a mesophilic sulfide-rich spring. Appl. Environ. Microbiol. 69:5609-5621.

Elshahed MS, and MJ McInerney 2001. Benzoate fermentation by the anaerobic bacterium Syntrophus aciditrophicus in absence of hydrogen-utilizing microorganisms. Appl. Environ. Microbiol. 67:5520-5525.

Elshahed MS, VK Bhupathiraju, NQ Wofford, MA Nanny, and MJ McInerney 2001. Metabolism of benzoate, cyclohex-1-ene carboxylate and cyclohexane carboxylate by Syntrophus aciditrophicus strain SB in syntrophic association with H2-using microorganisms. Appl. Environ. Microbiol. 67:1728-1738.

Elshahed MS, and MJ McInerney 2001. Is interspecies hydrogen transfer needed for toluene degradation under sulfate-reducing conditions? FEMS Microbiol. Ecol. 35:163-169.

Elshahed MS, LM Gieg, MJ McInerney, and JM Suflita 2001. Signature metabolites attesting to the in situ attenuation of alkylbenzenes in anaerobic environments. Environ. Sci. and Technol. 35:682-689.

Current Funding.
2008-2010. Oklahoma Bioenergy Fund: Enhancing the Enzymatic Conversion of Oklahoma Energy Crops into Fermentable Sugars.CoPi with Dr. Andrew Mort, Rolf A. Prade, and M. Wilkins (OSU).

2008-2013. National Science Foundation. Microbial Observatories and Microbial Interactions and Processes Program. “Collaborative Research: A Genomics and Cultivation-Based Study on Novel Candidate Divisions OD1, SR1, OP11, and TM7 in a Sulfur-Rich Spring (Zodletone Spring, OK)” PI, with Dr. Caroline Beller, and Lee Krumholz as CoPi.

2008-2010. Devon Energy Corp. Microbiological study of the Barnett shale waters PI.

2009-2013. Biofuel production from lignocellulosic biomass using of members of the anaerobic fungi (Phylum Neocallimastigomycota): A dual bioprospecting and strain development strategy. PI