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Front Microbiol. 2017 Oct 23;8:1974. doi: 10.3389/fmicb.2017.01974. eCollection 2017.

Microbial Community and Biochemical Dynamics of Biological Soil Crusts across a Gradient of Surface Coverage in the Central Mojave Desert.

Frontiers in microbiology

Rakesh Mogul, Parag Vaishampayan, Mina Bashir, Chris P McKay, Keith Schubert, Rosalba Bornaccorsi, Ernesto Gomez, Sneha Tharayil, Geoffrey Payton, Juliana Capra, Jessica Andaya, Leonard Bacon, Emily Bargoma, David Black, Katie Boos, Michaela Brant, Michael Chabot, Danny Chau, Jessica Cisneros, Geoff Chu, Jane Curnutt, Jessica DiMizio, Christian Engelbrecht, Caroline Gott, Raechel Harnoto, Ruben Hovanesian, Shane Johnson, Britne Lavergne, Gabriel Martinez, Paul Mans, Ernesto Morales, Alex Oei, Gary Peplow, Ryan Piaget, Nicole Ponce, Eduardo Renteria, Veronica Rodriguez, Joseph Rodriguez, Monica Santander, Khamille Sarmiento, Allison Scheppelmann, Gavin Schroter, Devan Sexton, Jenin Stephenson, Kristin Symer, Tatiane Russo-Tait, Bill Weigel, Mary B Wilhelm

Affiliations

  1. Chemistry and Biochemistry Department, California State Polytechnic University, Pomona, Pomona, CA, United States.
  2. Science Team, NASA/CSU Spaceward Bound, Pomona, CA, United States.
  3. Blue Marble Space Institute of Science, Seattle, WA, United States.
  4. Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States.
  5. Division of Endocrinology and Diabetology, Medical University of Graz, Graz, Austria.
  6. Ames Research Center, National Aeronautics and Space Administration, Mountain View, CA, United States.
  7. Department of Computer Science, Baylor University, Waco, TX, United States.
  8. SETI Institute, Mountain View, CA, United States.
  9. Department of Computer Science, California State University, San Bernardino, San Bernardino, CA, United States.
  10. College of Education, University of Texas at Austin, Austin, TX, United States.
  11. Teacher Core, NASA/CSU Spaceward Bound, Pomona, CA, United States.
  12. Orchard Academies 2B: Arts and Media, Bell, CA, United States.
  13. Foothills Middle School, Arcadia, CA, United States.
  14. Research Cohorts, NASA/CSU Spaceward Bound, Pomona, CA, United States.
  15. Maple Hill High School, Castleton-on-Hudson, NY, United States.
  16. American Academy of Innovation, Jordan, UT, United States.
  17. Center for Excellence in STEM Education, California Polytechnic State University, San Luis Obispo, CA, United States.
  18. Center for Math and Science Education, San Francisco State University, San Francisco, CA, United States.
  19. Smiley Elementary School, Redlands, CA, United States.

PMID: 29109701 PMCID: PMC5660283 DOI: 10.3389/fmicb.2017.01974

Abstract

In this study, we expand upon the biogeography of biological soil crusts (BSCs) and provide molecular insights into the microbial community and biochemical dynamics along the vertical BSC column structure, and across a transect of increasing BSC surface coverage in the central Mojave Desert, CA, United States. Next generation sequencing reveals a bacterial community profile that is distinct among BSCs in the southwestern United States. Distribution of major phyla in the BSC topsoils included Cyanobacteria (33 ± 8%), Proteobacteria (26 ± 6%), and Chloroflexi (12 ± 4%), with

Keywords: bacterial diversity; biochemistry; biological soil crusts; metals; subsurface; surface coverage; topsoil; vertical column

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