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Multi-omics analysis provides insight to the Ignicoccus hospitalis - Nanoarchaeum equitans association

Journal Article · · Biochimica et Biophysica Acta - General Subjects
 [1];  [2];  [2];  [3];  [4];  [3];  [4];  [5];  [5]
  1. Montana State Univ., Bozeman, MT (United States). Dept. of Microbiology; Montana State Univ., Bozeman, MT (United States). Dept. of Chemistry and Biochemistry
  2. Montana State Univ., Bozeman, MT (United States). Dept. of Chemistry and Biochemistry
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States). Dept. of Microbiology
  5. Montana State Univ., Bozeman, MT (United States). Dept. of Chemistry and Biochemistry; Montana State Univ., Bozeman, MT (United States). Thermal Biology Inst.
Studies of interspecies interactions are inherently difficult due to the complex mechanisms which enable these relationships. A model system for studying interspecies interactions is the marine hyperthermophiles Ignicoccus hospitalis and Nanoarchaeum equitans. Recent independently-conducted ‘omics’ analyses have generated insights into the molecular factors modulating this association. However, significant questions remain about the nature of the interactions between these archaea. We jointly analyzed multiple levels of omics datasets obtained from published, independent transcriptomics, proteomics, and metabolomics analyses. DAVID identified functionally-related groups enriched when I. hospitalis is grown alone or in co-culture with N. equitans. Enriched molecular pathways were subsequently visualized using interaction maps generated using STRING. Key findings of our multi-level omics analysis indicated that I. hospitalis provides precursors to N. equitans for energy metabolism. Analysis indicated an overall reduction in diversity of metabolic precursors in the I. hospitalis–N. equitans co-culture, which has been connected to the differential use of ribosomal subunits and was previously unnoticed. We also identified differences in precursors linked to amino acid metabolism, NADH metabolism, and carbon fixation, providing new insights into the metabolic adaptions of I. hospitalis enabling the growth of N. equitans. In conclusion, this multi-omics analysis builds upon previously identified cellular patterns while offering new insights into mechanisms that enable the I. hospitalis–N. equitans association. This study applies statistical and visualization techniques to a mixed-source omics dataset to yield a more global insight into a complex system, that was not readily discernable from separate omics studies.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Biological and Environmental Research (BER); USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Grant/Contract Number:
AC05-00OR22725; SC0006654
OSTI ID:
1400161
Alternate ID(s):
OSTI ID: 1550118
Journal Information:
Biochimica et Biophysica Acta - General Subjects, Journal Name: Biochimica et Biophysica Acta - General Subjects Journal Issue: 9 Vol. 1861; ISSN 0304-4165
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (3)

Synthetic microbial consortia for biosynthesis and biodegradation: promises and challenges journal July 2019
Deep‐sea hydrothermal vent metagenome‐assembled genomes provide insight into the phylum Nanoarchaeota journal March 2019
Single-cell genomics of co-sorted Nanoarchaeota suggests novel putative host associations and diversification of proteins involved in symbiosis journal September 2018

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