Microbial community assembly and metabolic function during mammalian corpse decomposition

Author:

Metcalf Jessica L.12,Xu Zhenjiang Zech2,Weiss Sophie3,Lax Simon45,Van Treuren Will6,Hyde Embriette R.2,Song Se Jin12,Amir Amnon2,Larsen Peter47,Sangwan Naseer478,Haarmann Daniel9,Humphrey Greg C.2,Ackermann Gail2,Thompson Luke R.2,Lauber Christian10,Bibat Alexander11,Nicholas Catherine11,Gebert Matthew J.11,Petrosino Joseph F.12,Reed Sasha C.13,Gilbert Jack A.457814,Lynne Aaron M.9,Bucheli Sibyl R.9,Carter David O.15,Knight Rob216

Affiliation:

1. Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO 80309, USA.

2. Department of Pediatrics, University of California, San Diego, San Diego, CA 92037, USA.

3. Department of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80303, USA.

4. Department of Ecology and Evolution, University of Chicago, 1101 East 57th Street, Chicago, IL 60637, USA.

5. Institute for Genomic and Systems Biology, University of Chicago, 900 East 57th Street, Chicago, IL 606037, USA.

6. Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA.

7. Biosciences Division, Argonne National Laboratory, South Cass Avenue, Argonne, IL 60439, USA.

8. Department of Surgery, University of Chicago, A27 South Maryland Avenue, Chicago, IL 60637, USA.

9. Department of Biological Sciences, Sam Houston State University, Huntsville, TX 77340, USA.

10. Nestlé Institute of Health Sciences, École Polytechnique Fédérale Lausanne, Bâtiment H, 1015 Lausanne, Switzerland.

11. BioFrontiers Institute, University of Colorado, Boulder, CO 80303, USA.

12. Alkek Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA.

13. U.S. Geological Survey, Southwest Biological Science Center, Moab, UT 84532, USA.

14. Marine Biological Laboratory, 7 MBL St, Woods Hole, MA 02543, USA.

15. Laboratory of Forensic Taphonomy, Forensic Sciences Unit, Division of Natural Sciences and Mathematics, Chaminade University of Honolulu, Honolulu, HI 96816, USA.

16. Department of Computer Science and Engineering, University of California, San Diego, San Diego, CA 92037, USA.

Abstract

Decomposition spawns a microbial zoo The death of a large animal represents a food bonanza for microorganisms. Metcalf et al. monitored microbial activity during the decomposition of mouse and human cadavers. Regardless of soil type, season, or species, the microbial succession during decomposition was a predictable measure of time since death. An overlying corpse leaches nutrients that allow soil- and insect-associated fungi and bacteria to grow. These microorganisms are metabolic specialists that convert proteins and lipids into foul-smelling compounds such as cadaverine, putrescine, and ammonia, whose signature may persist in the soil long after a corpse has been removed. Science , this issue p. 158

Funder

National Institute of Justice

National Human Genome Research Institute

NIH

Templeton Foundation

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference29 articles.

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