Jennifer Macalady
Director of the Ecology Institute; Professor of Geosciences
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210 Deike
University Park, PA 16802 - jlm80@psu.edu
- 814-865-6330
Research Summary
Microbial interactions with earth materials: soils, sediments, solutes, atmospheric gases, minerals, and rocks. Early evolution of Earth’s biosphere, including photosynthesis and sulfur cycling. Microbial ecology, environmental omics, microbial biogeography.
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Sulfur Sulfides Lakes Iron Oxidation Oxygen Population Carbon Sulfide Genome Metagenomics Sulfates Ecosystem Biofilms Cyanobacteria Nitrogen Pyrite Water Drainage Bacteria Coal Lake Microorganisms Microbiota BacteriumMost Recent Publications
Organic Stabilization of Extracellular Elemental Sulfur in a Sulfurovum-Rich Biofilm: A New Role for Extracellular Polymeric Substances?
B. Kamermans, Jennifer Macalady, J. Cosmidis, Frontiers in Microbiology
Microbial carbon, sulfur, iron, and nitrogen cycling linked to the potential remediation of a meromictic acidic pit lake
Diana Ayala-Muñoz, Jennifer L. Macalady, Javier Sánchez-España, Carmen Falagán, Estelle Couradeau, William D. Burgos, 2022, ISME Journal on p. 2666-2679
Novel Microorganisms Contribute to Biosulfidogenesis in the Deep Layer of an Acidic Pit Lake
Diana Ayala-Muñoz, William D. Burgos, Javier Sánchez-España, Carmen Falagán, Estelle Couradeau, Jennifer L. Macalady, 2022, Frontiers in Bioengineering and Biotechnology
Thousands of small, novel genes predicted in global phage genomes
Brayon J. Fremin, Ami S. Bhatt, Nikos C. Kyrpides, Aditi Sengupta, Alexander Sczyrba, Aline Maria da Silva, Alison Buchan, Amelie Gaudin, Andreas Brune, Ann M. Hirsch, Anthony Neumann, Ashley Shade, Axel Visel, Barbara Campbell, Brett Baker, Brian P. Hedlund, Byron C. Crump, Cameron Currie, Charlene Kelly, Chris Craft, Christina Hazard, Christopher Francis, Christopher W. Schadt, Colin Averill, Courtney Mobilian, Dan Buckley, Dana Hunt, Daniel Noguera, David Beck, David L. Valentine, David Walsh, Dawn Sumner, Despoina Lymperopoulou, Devaki Bhaya, Donald A. Bryant, Elise Morrison, Eoin Brodie, Erica Young, Erik Lilleskov, Eva Högfors-Rönnholm, Feng Chen, Frank Stewart, Graeme W. Nicol, Hanno Teeling, Harry R. Beller, Hebe Dionisi, Hui Ling Liao, J. Michael Beman, Jennifer Macalady, Monica Medina, 2022, Cell Reports
Organic Stabilization of Extracellular Elemental Sulfur in a Sulfurovum-Rich Biofilm: A New Role for Extracellular Polymeric Substances?
Brandi Cron, Jennifer L. Macalady, Julie Cosmidis, 2021, Frontiers in Microbiology
Functional redundancy imparts process stability to acidic Fe(II)-oxidizing microbial reactors
Diana Ayala-Muñoz, Rachel L. Simister, Sean A. Crowe, Jennifer L. Macalady, William D. Burgos, 2021, Environmental Microbiology on p. 3682-3694
Versatile cyanobacteria control the timing and extent of sulfide production in a Proterozoic analog microbial mat
Judith M. Klatt, Gonzalo V. Gomez-Saez, Steffi Meyer, Petra Pop Ristova, Pelin Yilmaz, Michael S. Granitsiotis, Jennifer L. Macalady, Gaute Lavik, Lubos Polerecky, Solveig I. Bühring, 2020, ISME Journal on p. 3024-3037
Metagenomics reveal functional redundancy and hysteresis in community assembly
D. Ayala-Muñoz, R. Simister, S. Crowe, Jennifer Macalady, W. Burgos, 2020, Environmental Microbiology
Metagenomic and metatranscriptomic study of microbial metal resistance in an acidic pit lake
Diana Ayala-Munoz, Diana Ayala-Muñoz, William D. Burgos, Javier Sánchez-España, Javier Sanchez-Espana, Estelle Couradeau, Carmen Falagán, Carmen Falagan, Jennifer L. Macalady, 2020, Microorganisms on p. 1350 (27 pages)
Microbial population structure in a stratified, acidic pit lake in the Iberian Pyrite Belt
Christen L. Grettenberger, Rebecca L. Mccauley Rench, Danielle S. Gruen, Daniel B. Mills, Colin Carney, Jamie Brainard, Hiroshi Hamasaki, Ramses Ramirez, Yumiko Watanabe, Linda A. Amaral-Zettler, Hiroshi Ohmoto, Jennifer L. Macalady, 2020, Geomicrobiology Journal on p. 623-634
Most-Cited Papers
Geochemical niches of Iron-oxidizing acidophiles in acidic coal mine drainage
Daniel S. Jones, Courtney Kohl, Christen Grettenberger, Lance N. Larson, William D. Burgos, Jennifer L. Macalady, 2015, Applied and Environmental Microbiology on p. 1242-1250
Low frequency Raman Spectroscopy for micron-scale and in vivo characterization of elemental sulfur in microbial samples
Christine Nims, Brandi Cron, Maxwell Wetherington, Jennifer Macalady, Julie Cosmidis, 2019, Scientific Reports
Metagenomic insights into S(0) precipitation in a terrestrial subsurface lithoautotrophic ecosystem
Trinity L. Hamilton, Daniel S. Jones, Irene Schaperdoth, Jennifer L. Macalady, 2014, Frontiers in Microbiology
Geochemical and temporal influences on the enrichment of acidophilic iron-oxidizing bacterial communities
Yizhi Sheng, Kyle Bibby, Christen Grettenberger, Bradley Kaley, Jennifer L. Macalady, Guangcai Wang, William D. Burgos, 2016, Applied and Environmental Microbiology on p. 3611-3621
Carbon and sulfur cycling below the chemocline in a meromictic lake and the identification of a novel taxonomic lineage in the FCB superphylum, Candidatus Aegiribacteria
Trinity L. Hamilton, Roderick J. Bovee, Sarah R. Sattin, Wiebke Mohr, William P. Gilhooly, Timothy W. Lyons, Ann Pearson, Jennifer L. Macalady, 2016, Frontiers in Microbiology
Sulfur isotope values in the sulfidic Frasassi cave system, central Italy: A case study of a chemolithotrophic S-based ecosystem
Aubrey L. Zerkle, Daniel S. Jones, James Farquhar, Jennifer L. Macalady, 2016, Geochmica et Cosmochimica Acta on p. 373-386
Calcium isotopic fractionation in microbially mediated gypsum precipitates
Khadouja Harouaka, Muammar Mansor, Jennifer L. Macalady, Matthew S. Fantle, 2016, Geochmica et Cosmochimica Acta on p. 114-131
Coupled reductive and oxidative sulfur cycling in the phototrophic plate of a meromictic lake
T. L. Hamilton, R. J. Bovee, V. Thiel, S. R. Sattin, W. Mohr, I. Schaperdoth, K. Vogl, W. P. Gilhooly, T. W. Lyons, L. P. Tomsho, S. C. Schuster, J. Overmann, D. A. Bryant, A. Pearson, J. L. Macalady, 2014, Geobiology on p. 451-468
Structure and function of natural sulphide-oxidizing microbial mats under dynamic input of light and chemical energy
Judith M. Klatt, Steffi Meyer, Stefan Häusler, Jennifer L. Macalady, Dirk De Beer, Lubos Polerecky, 2016, ISME Journal on p. 921-933
Anaerobic biodegradation of the isoprenoid biomarkers pristane and phytane
Katherine S. Dawson, Irene Schaperdoth, Katherine H. Freeman, Jennifer L. Macalady, 2013, Organic Geochemistry on p. 118-126
News Articles Featuring Jennifer Macalady
Jul 13, 2021
Macalady named Ecology Institute director
Microbe expert Jennifer Macalady replaces outgoing director Erica Smithwick, who oversaw the research unit for the past five years.
Full Article
May 13, 2020
Possible microbes in the Mariana Trench hint at life on Jupiter’s moon
During the 2012 DEEPSEA CHALLENGE expedition to the deepest part of the ocean, scientists spotted fuzzy mats that may be communities of bacteria clinging to the rocks.
Full Article
Dec 14, 2019
Dried-up slime may assist microbes survive briny waters on Mars
Slime could help microbe stowaways survive a trip to Mars– and thrive in the planet’s salty waters once they arrive. Biofilms, colonies of cells embedded in a gooey protective coating, live longer than single cells when exposed to Mars-like brines – and even longer when they are dried out first, as they would be after travelling through space.
Full Article