We are interested in the distribution, diversity and activity of bacteria that either use or impact trace gases in the atmosphere, including methane, hydrogen and carbon monoxide among others. These gases have profound effects on atmospheric chemistry and radiative forcing and act in concert with carbon dioxide to contribute to global climate change. Our work ranges from studies of laboratory cultures to understand controls of metabolism to field studies to understand distribution and activity. We use a wide range of approaches to address basic questions, and have developed a battery of "molecular" tools to complement more traditional cultivation and field assays.
Our work includes an emphasis on volcanic systems, e.g., Kilauea volcano, Hawai'i, which facilitates analysis of broader questions, e.g., what determines the patterns of microbial colonization and succession on recent volcanic deposits during succession does diversity increase through random or order assemblages of phylogenetically distinct organisms; what is more important, diversity at higher phylogenetic orders (e.g., phyla within a domain) or at lower orders (e.g., within a phylum)
King, G.M. 2003. Molecular and culture-based analyses of aerobic carbon monoxide oxidizer diversity. Appl. Environ. Microbiol. 69:7257-7265.
Dunfield, K. and G.M. King. 2004. Molecular analysis of carbon monoxide-oxidizing bacteria associated with recent Hawaiian volcanic deposits. Appl. Environ. Microbiol. 70:4242-4248.
Nanba, K., G.M. King and K. Dunfield. 2004. Analysis of the distribution and diversity of lithotrophic bacterial populations on recent Hawaiian volcanic deposits. Appl. Environ. Microbiol. 70:2245-2253.
Tolli, J. and G.M. King. 2005. Llithotrophic community structures in agroecosystem and unmanaged pine forest soils based on analyses of the large subunit of form I ribulose-1,5-bisphosphate carboxylase/oxygenase. Appl. Environ. Microbiol. 71:8411-8418.
King, G.M. 2006. Ecophysiology of microbial respiration. pp. 18-35. In, P. del Giorgio and P.J. leB. Williams. Aquatic respiration. Oxford University Press, Oxford.
E.L. Teuten, G.M. King and C.R. Reddy. 2006. Natural 14C in Saccoglossus bromophenolosus compared to surrounding sediments. Mar. Ecol. Prog. Ser. 324:167-172.
Weidong, Z., C.F. Weber, C.L. Zhang, C.S. Romanek, G.M. King, G. Mills, T. Sokolova, J. Wiegel. 2006. Thermalkalibacillus uzonensis gen. nov. sp. nov, a novel aerobic thermophilic carbon-monoxide-tolerant bacterium isolated from a hot spring in Uzon Caldera, Kamchatka Extremophiles
King, G.M. 2007. Nitrate-dependent anaerobic oxidation of carbon monoxide. FEMS Microbiol. Ecol. 59:2-9
King, G.M. 2007. Microbial consumption of carbon monoxide by salt marsh sediments. FEMS Microbiol. Ecol.
Weber, C.F. and G.M. King. 2007. Physiological, ecological and phylogenetic characterization of Stappia, a marine CO-oxidizing bacterial genus. Appl. Environ. Microbiol. 73:1266-1276.
King, G.M. and C.F. Weber. 2007. Distribution, diversity and ecology of aerobic CO-oxidizing bacteria. Nature Reviews Microbiol. 5:107-118
Nigro, L.M. and G.M. King. 2007. Disparate distributions of chemolithotrophs containing form IA or IC large sub-unit genes for ribulose-1,5-bisphosphate carboxylase/oxygenase in intertidal marine and littoral lake sediments. FEMS. Microbiol. Ecol.