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Note: PDF reprints are provided below within the context of fair use. Please obtain copies from the publisher if appropriate.

Selected Publications

Maresca, J., Crowe, S. and Macalady, J. L. 2012. Guest Editorial: Special Issue on Anaerobic Photosynthetic Ecosystems. Geobiology 10 (3): 193-195 .

Dawson, K. S. , Strapoc, D., Huizinga, B., Lidstrom, U., Ashby, M. and Macalady, J. L. 2012. Quantitative FISH analysis of microbial consortia from a biogenic gas field in the Cook Inlet Basin, Alaska. online ahead, Applied and Environmental Microbiology doi:10.1128/AEM.07122-11

Dawson, K. S. , Freeman, K. H., and Macalady, J. L. 2012. Molecular characterization of archaeal lipids across a hypersaline gradient. online ahead , Organic Geochemistry

Dawson, K., Schaperdoth, I., Freeman, K. H. and Macalady, J. L. Anaerobic biodegradation of the branched hydrocarbon biomarker analog pristane. In review.

Kimball, B. E., Dohnalkova, A. C., Lai, B., Macalady, J. L., Kemner, K. M., and Brantley, S. L. Bacterially-mediated precipitation of jarosite: implications for copper isotope mobility. In review.

Gonzalez, B. C., Iliffe, T. M., Macalady, J. L., Schaperdoth, I., and Kakuk, B. 2011. Microbial hotspots in anchialine blue holes: initial discoveries from the Bahamas. Hydrobiologia 677:149-156.

Jones, D. S., I. Schaperdoth, T. S. Stoffer, K. Dawson, K. H. Freeman, H. Albrecht, and Macalady, J. L. 2011. Community genomic analysis of an extremely acidophilic sulfur-oxidizing biofilm. ISME Journal 6, 158-170, doi:10.1038/ismej.2011.75.

Strapoc, D., Mastalerz, M., Dawson, K. H., Macalady, J. L., Callaghan, A., Wawrik, B., and Ashby, M. 2011. Biogeochemistry of Coal Bed Methane. Annual Review of Earth and Planetary Science 39: 617-656, DOI: 10.1146/annurev-earth-040610-133343
html pdf

Meyer, K.M., Macalady, J.L. , Fulton, J.M., Kump, L.R., Schaperdoth, I., and Freeman, K.H. 2011. Carotenoid biomarkers as an imperfect reflection of the anoxygenic phototrophic community in meromictic Fayetteville Green Lake (NY). Geobiology 9:321-329.

Macalady, J. L. 2010. NASA Astrobiology Institute Directors Seminar, "Pale Pink Dot II: Microbial Signatures of Ancient Oceans". Video presentation available at http://astrobiology.nasa.gov/nai/seminars/.

Brown, J. F., Jones, D. S., Mills, D., Macalady, J. L. and Burgos, W. 2011. Role of environmental gradients and depositional facies in controlling acid mine drainage microbiology and precipitation kinetics. Applied and Environmental Microbiology 77: 545-554, doi:10.1128/AEM.01550-10.

Jones, D. S., Tobler, D., Schaperdoth, I., Galdenzi, S. Mainiero, M., and Macalady, J. L. 2010. Community structure of biofilms in the thermic, sulfidic caves of Acquasanta Terme, Italy. Applied and Environmental Microbiology 76(17): 5902-5910. doi:10.1128/AEM.00647-10.

Moore, J., Macalady, J. L., Schulz, M. S., White, A. F., and Brantley, S. L. 2010. Shifting microbial community structure across a marine terrace grassland chronosequence, Santa Cruz, California. Soil Biology and Biochemistry, 42: 21-31, doi:10.1016/j.soilbio.2009.09.015.

Dattagupta, S., Schaperdoth, I., Montanari, A., Mariani, S., N. Kita, J. W. Valley, and Macalady, J. L. 2009. A Recently Evolved Symbiosis Between Chemoautotrophic Bacteria and a Cave-dwelling Amphipod. ISME Journal 3: 935-943.
pdf (supplementary)

Macalady, J. L. , S. Dattagupta, I. Schaperdoth, D. S. Jones, G. K. Druschel, D. Eastman. 2008. Niche differentiation among sulfur-oxidizing bacterial populations in cave waters. ISME Journal 2: 590-601.

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.

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. Journal of Geophysical Research 113, G02S90, doi:10.1029/2007JG000495.

Jones, D. S., Lyon, E. H., and Macalady, J. L. 2008. Geomicrobiology of sulfidic cave biovermiculations. Journal of Cave and Karst Studies 70(2):78-93.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.


Listin Diario (Santo Domingo daily newspaper) reports the Dominican Republic Microbial Underworld expedition with a cover story

DIVER magazine (Nov. 2010) article by Jill Heinerth details current efforts to preserve Bahamas blue holes as libraries of microbial and fossil assemblages (pdf).

Spanish press on Penn State Astrobiology expedition to Rio Tinto.

National Geographic Magazine, Aug. 2010 cover story (Bahamas blue holes expedition)

NOVA/National Geographic International Blue Holes TV documentary (2010)

Press release from Max Planck Institute for Marine Microbiology (Dec. 2009)

Behind the Scenes: Caves Reveal Evolution of Ancient Microbes (Livescience.com, May 2009)

Stigobionti (2010)
Cave biology text featuring cover image (FISH micrograph) and geomicrobiology content authored by members of the Macalady Lab. The text will be distributed to schools throughout the Marche Region, Italy.

Unusual microbial ropes grow slowly in cave lake (Dec. 2008, ScienceDaily.com)

MicrobeWorld Radio (podcast September 8, 2008)

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

Snot-like microbes help carve caves (2007, LiveScience.com)

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)



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