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5 results on '"Jennifer Macalady"'

1. Metagenome-Assembled Genomes from Appalachian Acid Mine Drainage Sites

Author

Caden Williams, Jennifer Macalady, Christen Grettenberger, and Stedman, Kenneth M

Subjects
Immunology and Microbiology (miscellaneous), Genetics, Molecular Biology
Abstract

Here, we report 7 metagenome-assembled genomes (MAGs) isolated from acid mine drainage sites in the eastern United States. Three genomes are Archaea , including two from the phylum Thermoproteota and one from Euryarchaeota . Four genomes are bacterial, with one from the phylum Candidatus Eremiobacteraeota (formerly WPS-2), one from Acidimicrobiales ( Actinobacteria ), and two from Gallionellaceae ( Proteobacteria ).

Published
2023

2. Carbonates in the Critical Zone

Author

Matthew David Covington, Jonathan B. Martin, Laura Toran, Jennifer Macalady, Natasha Sekhon, Pamela L Sullivan, Angel A Garcia, James B. Heffernan, and Wendy D. Graham

Published
2022

3. Carbonates in the Critical Zone

Author

Matthew David Covington, Jonathan B. Martin, Laura Toran, Jennifer Macalady, Pamela L Sullivan, Angel A Garcia, James B. Heffernan, and Wendy D. Graham

Published
2022

4. Thousands of small, novel genes predicted in global phage genomes

Author

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, James Stegen, James Tiedje, Janet Jansson, Jean VanderGheynst, Jeanette Norton, Jeff Dangl, Jeffrey Blanchard, Jennifer Bowen, Jennifer Macalady, Jennifer Pett-Ridge, Jeremy Rich, Jérôme P. Payet, John D. Gladden, Jonathan D. Raff, Jonathan L. Klassen, Jonathan Tarn, Josh Neufeld, Kelly Gravuer, Kirsten Hofmockel, Ko-Hsuan Chen, Konstantinos Konstantinidis, Kristen M. DeAngelis, Laila P. Partida-Martinez, Laura Meredith, Ludmila Chistoserdova, Mary Ann Moran, Matthew Scarborough, Matthew Schrenk, Matthew Sullivan, Maude David, Michelle A. O'Malley, Monica Medina, Mussie Habteselassie, Nicholas D. Ward, Nicole Pietrasiak, Olivia U. Mason, Patrick O. Sorensen, Paulina Estrada de los Santos, Petr Baldrian, R. Michael McKay, Rachel Simister, Ramunas Stepanauskas, Rebecca Neumann, Rex Malmstrom, Ricardo Cavicchioli, Robert Kelly, Roland Hatzenpichler, Roman Stocker, Rose Ann Cattolico, Ryan Ziels, Rytas Vilgalys, Sara Blumer-Schuette, Sean Crowe, Simon Roux, Steven Hallam, Steven Lindow, Susan H. Brawley, Susannah Tringe, Tanja Woyke, Thea Whitman, Thomas Bianchi, Thomas Mock, Timothy Donohue, Timothy Y. James, Udaya C. Kalluri, Ulas Karaoz, Vincent Denef, Wen-Tso Liu, William Whitman, and Yang Ouyang

Subjects
Microbiota, Bacteriophages, Genome, Viral, Genomics, Phylogeny, Article, General Biochemistry, Genetics and Molecular Biology
Abstract

Small genes (40,000 small-gene families in ~2.3 million phage genome contigs. We find that small genes in phage genomes are approximately 3-fold more prevalent than in host prokaryotic genomes. Our approach enriches for small genes that are translated in microbiomes, suggesting the small genes identified are coding. More than 9,000 families encode potentially secreted or transmembrane proteins, more than 5,000 families encode predicted anti-CRISPR proteins, and more than 500 families encode predicted antimicrobial proteins. By combining homology and genomic-neighborhood analyses, we reveal substantial novelty and diversity within phage biology, including small phage genes found in multiple host phyla, small genes encoding proteins that play essential roles in host infection, and small genes that share genomic neighborhoods and whose encoded proteins may share related functions.

Published
2022

5. Oxygenic and anoxygenic photosynthesis in a microbial mat from an anoxic and sulfidic spring

Author

Dirk, de Beer, Miriam, Weber, Arjun, Chennu, Trinity, Hamilton, Christian, Lott, Jennifer, Macalady, and Judith, M Klatt

Subjects
Chlorobi, Oxygen, Lakes, Florida, Photosynthesis, Sulfides, Cyanobacteria, Ferric Compounds, Hot Springs
Abstract

Oxygenic and anoxygenic photosynthesis were studied with microsensors in microbial mats found at 9-10 m depth in anoxic and sulfidic water in Little Salt Spring (Florida, USA). The lake sediments were covered with a 1-2 mm thick red mat dominated by filamentous Cyanobacteria, below which Green Sulfur Bacteria (GSB, Chlorobiaceae) were highly abundant. Within 4 mm inside the mats, the incident radiation was attenuated to undetectable levels. In situ microsensor data showed both oxygenic photosynthesis in the red surface layer and light-induced sulfide dynamics up to 1 cm depth. Anoxygenic photosynthesis occurred during all daylight hours, with complete sulfide depletion around midday. Oxygenic photosynthesis was limited to 4 h per day, due to sulfide inhibition in the early morning and late afternoon. Laboratory measurements on retrieved samples showed that oxygenic photosynthesis was fully but reversibly inhibited by sulfide. In patches Fe(III) alleviated the inhibition of oxygenic photosynthesis by sulfide. GSB were resistant to oxygen and showed a low affinity to sulfide. Their light response showed saturation at very low intensities.

Published
2016

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