Methylacidiphilum fumariolicum

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MMG425 Kelsey Sharples Keely Chandler



Domain: Bacteria

Phylum: Verrucomicrobia


Order: Methylacidiphilales

Family: Methylacidiphilaceae

Genus: Methylacidiphilum

Species: Methylacidiphilum fumariolicum

Description and Significance

Methylacidiphilum fumariolicum is an extremely acidophilic methanotrophic microbe first discovered in 2007 in volcanic pools near Naples, Italy by Huub Op den Camp and other scientists. This microbe endures very hot temperatures and mud that is extremely acidic. After studying the mudpot in which the microbe lived, it was found that M. fumariolicum is strictly dependent on the presence of rare earth metals such as lanthanides. It is theorized that lanthanides provide superior catalytic properties to a key enzyme for both methanotrophs and methylotrophs. When the bacteria’s enzyme methanol dehydrogenase was analyzed, scientist found traces of whichever rare earth element that they had added, indicating storing of the elements by the enzyme. [1]

Genome Structure

Genome Details [2] :

The genome of Methylacidiphilum fumariolicum is 2.36 Mbp in size.

GC content = 40.9%

2,283 protein encoding genes

Biosynthetic pathways and tRNAs for all 20 amino acids were present




[1] Pol, A., T. Barends, A. Dietl, A. Khadem, J. Eygensteyn, M. Jetten, and H. Op den Camp. "Rare Earth Metals Are Essential for Methanotrophic Life in Volcanic Mudpots." Environmental Microbiology (2013): N/a. Print.

[2] Khadem, A., A. Wieczorek, A. Pol, S. Vuilleumier, H. Harhangi, P. Dunfield, M. Kalyuzhnaya, J. Murrell, K. Francoijs, H. Stunnenberg, L. Stein, A. Dispirito, J. Semrau, A. Lajus, C. Medigue, M. Klotz, M. Jetten, and H. Op Den Camp. "Draft Genome Sequence of the Volcano-Inhabiting Thermoacidophilic Methanotroph Methylacidiphilum Fumariolicum Strain SolV." Journal of Bacteriology 194.14 (2012): 3729-730. Print.