Selected Publications

Dattagupta, S., Schaperdoth, I., Montanari, A., Mariani, S., N. Kita, J. W. Valley, and Macalady, J. L. A Recently Evolved Symbiosis Between Chemoautotrophic Bacteria and a Cave-dwelling Amphipod. Submitted.

Macalady, J. L., E. H. Lyon, and L. K. Albertson. Phylogeny and population structure of veil-like microbial mats from the Frasassi cave system, Italy. (in preparation).

Macalady, J. L. , S. Dattagupta, I. Schaperdoth, G. K. Druschel, D. Eastman. 2008. Niche differentiation among sulfur-oxidizing bacterial populations in cave waters. ISME Journal 2: 590-601.
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Strapoc D., F. Picardal, C. Turich, I. Schaperdoth, J. L. Macalady, J. Lipp, Y.-S. Lin, T. Mohr, F. Schuboltz, K.-U. Hinrichs, M. Mastalerz, A. Schimmelmann. 2008. Coalbed methane-producing microbial community in the Illinois Basin. Applied and Environmental Microbiology 74(8):2424-2432.
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Ewing, S. A., McKay, C. P., Warren-Rhodes, K., Macalady, J. L. , and Amundson, R. 2008. Climate legacy and biogeochemical transformation: Isotopic trends in soil organic carbon at the arid-hyperarid transition in the Atacama Desert. JGR Biogeosciences (in press).

Jones, D. S., Lyon, E. H., and Macalady, J. L. 2008. Geomicrobiology of sulfidic cave biovermiculations. Journal of Cave and Karst Studies (in press).
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Green, E. G., Macalady, J. L. , and Banfield, J.F. 2008. Interplay between landscape position and microbial abundance impacts geochemical characteristics of soil and saprolite (in review).

Ewing, S. A., Michalski, G., Thiemens, M. H., Quinn, R. C. , Macalady, J. L., Kohl, S., Wankel, S. D. , Kendall, C., McKay, C. P., and Amundson, R. 2007. The Rainfall Limit of the Nitrogen Cycle on Earth. Global Biogeochemical Cycles, 21:GB3009, doi:10.1029/2006GB002838.
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Macalady, J. L. , D. S. Jones, and E. H. Lyon. 2007. Extremely acidic, pendulous microbial biofilms from the Frasassi cave system, Italy. Environmental Microbiology, 9(6): 1402-1414.
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Ewing, S. A., R. J. Southard, J. L. Macalady , A. S. Hartshorn and M. J. Johnson. 2006. Localization of soil microbial community fingerprints, carbon, and nitrogen in a Mojave Desert creosote bush ecosystem. Soil Science Society of America Journal 71(2):469-475.
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Macalady, J. L., Lyon, E.H., Koffman, B., Albertson, L. K., Meyer, K., Galdenzi, S. and Mariani, S. 2006. Dominant microbial populations in limestone-corroding stream biofilms, Frasassi cave system, Italy. Applied and Environmental Microbiology 72(8):5596-5609.
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Hose, L.D. and Macalady, J. L. 2006. Observations from active sulfidic karst systems: Is the present the key to understanding Guadalupe Mountain speleogenesis? New Mexico Geological Society Guidebook, 57th Field Conference, Caves and Karst of Southeastern New Mexico.
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Lyon E., Koffman B., Meyer K., Cleaveland L., Mariani S., Galdenzi S., and J. L. Macalady . 2004. Geomicrobiology of the Frasassi Caves. In Frasassi 1989-2004: Gli sviluppi nella ricerca (S. Galdenzi, ed.), pp. 152-157.

Macalady, J. L. , M. M. Vestling, D. Baumler, N. Boekelheide, C.W. Kaspar, and J. F. Banfield. 2004. Membrane monolayers in Ferroplasma spp.: a key to survival in acid. Extremophiles 8(5):411-419.
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Macalady, J. L. , and J. F. Banfield. 2003. Molecular geomicrobiology: genes and geochemical cycling [invited Frontiers review ]. Earth and Planetary Science Letters 209 (1-2): 1-17.
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A. M. Costello, A. J. Auman, J. L. Macalady , K. M. Scow, and M. E. Lidstrom. 2002. Estimation of Methanotroph Abundance in a Freshwater Lake Sediment. Environmental Microbiology 4(8): 443-450.
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Macalady, J. L. , A. M. S. McMillan, A. F. Dickens, S. C. Tyler and K. M. Scow. 2002. Population dynamics of Type I and II methanotrophic bacteria in rice soils. Environmental Microbiology 4(3):148-157.
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Macalady, J. L. , E.E. Mack, D.C. Nelson and K.M. Scow. 2000. Sediment microbial community structure and mercury methylation in mercury-polluted Clear Lake, CA. Applied and Environmental Microbiology 66 (4):1479-1488.
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Scow, K. M., E. Schwartz, M.J. Johnson and J. L. Macalady . 2000. Measurement of microbial biodiversity, In Encyclopedia of Biodiversity, Levin, S. A. (Sr. ed.), Academic Press, Inc.

Hanson, J.R., J. L. Macalady , D. Harris and K.M. Scow. 1999. Linking toluene degradation with specific microbial populations in soil. Applied and Environmental Microbiology 65 (12):5403-5408.
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Macalady, J. L. , M.E. Fuller and K.M. Scow. 1998. Effects of metam sodium fumigation on soil microbial activity and community structure. Journal of Environmental Quality 27:54-63.


Press

MicrobeWorld Radio (podcast September 8, 2008)

ASM's "Small Things Considered", In a Cavern, In a Canyon... (Jan. 2007)

report on Defining Life's Limits ACS session (Spring 2004)

"H2S Caves in Central Italy", NSS News report by Louise Hose (Dec. 2005)
[used with permission of the National Speleological Society (www.caves.org)]
Louise Hose is the former Director of the National Cave and Karst Research Institute (www. nckri.org)