Multi-Omics of Extremophilic Organisms

A special issue of Biology (ISSN 2079-7737). This special issue belongs to the section "Microbiology".

Deadline for manuscript submissions: 31 May 2024 | Viewed by 1143

Special Issue Editors

Institute of Bioprocess Science and Engineering, Department of Biotechnology, University of Natural Resources and Applied Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
Interests: process proteomics; extremophilic organisms; climate change; allergenic proteins; plant proteomics
Special Issues, Collections and Topics in MDPI journals
Institute of Microbiology and Microbial Biotechnology, Department of Biotechnology, University of Natural Resources and Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
Interests: biotechnology of extremophiles; extremophilic fungi; fungal proteomics; stress adaptation; polymer degradation by fungi; astrobiology

Special Issue Information

Dear Colleagues,

Extremophiles are fascinating organisms that inhabit environments which are intolerably hostile or even lethal for other life forms. They grow in habitats that do not appear to be suitable for life: very low to extremely high pH (0 to 12), pressures of up to 110 MPa, salt lakes, frozen water and hot volcanic niches at 122 °C, etc. Some of these organisms have shown that they are not only able to tolerate these conditions, but even require them for their survival, growth, and metabolism.

In the face of climate change and rising temperatures, increasing dryness and soil salinity, altered bioremediation and waste and pollution management, research on extremophiles exploring the biology and adaptation of these organisms to extreme conditions is of crucial importance to cope with environmental changes. The molecular uniqueness and the biotechnological potential of species from the extremes of life have also driven intense activity in genomics and multi-omics research aimed at screening for novel proteins and enzymes offering advantages over those from less-tolerant counterparts. Along with unravelling adaptive mechanisms, multi-omics (genomics, transcriptomics, proteomics, metabolomics, phenomics, etc.) of extremophiles hold the potential to contribute to the development of strategies at the gene, protein, metabolic, phenotypic etc. level, ultimately leading to biotechnological innovations.

This Special Issue welcomes submissions of original research and review manuscripts focusing on the application of multi-omics to answer questions concerning the adaptation biology of extremophiles, and to explore the molecular basis of gene and protein stability and the activity and post-translational modifications of physicochemical parameters at extreme values. The ultimate goal is to achieve a precise overview of this novel and interdisciplinary field of microbiology, providing information about the status of this emerging and promising field of research.

Dr. Gorji Marzban
Dr. Donatella Tesei
Guest Editors

Manuscript Submission Information

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  • extremophiles
  • integrative analysis
  • systems biology
  • stress biology
  • extreme environmental conditions
  • biotechnologic application

Published Papers (1 paper)

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13 pages, 7177 KiB  
Seasonality Is the Main Determinant of Microbial Diversity Associated to Snow/Ice around Concordia Station on the Antarctic Polar Plateau
Biology 2023, 12(9), 1193; - 31 Aug 2023
Viewed by 711
The French–Italian Concordia Research Station, situated on the Antarctic Polar Plateau at an elevation of 3233 m above sea level, offers a unique opportunity to study the presence and variation of microbes introduced by abiotic or biotic vectors and, consequently, appraise the amplitude [...] Read more.
The French–Italian Concordia Research Station, situated on the Antarctic Polar Plateau at an elevation of 3233 m above sea level, offers a unique opportunity to study the presence and variation of microbes introduced by abiotic or biotic vectors and, consequently, appraise the amplitude of human impact in such a pristine environment. This research built upon a previous work, which explored microbial diversity in the surface snow surrounding the Concordia Research Station. While that study successfully characterized the bacterial assemblage, detecting fungal diversity was hampered by the low DNA content. To address this knowledge gap, in the present study, we optimized the sampling by increasing ice/snow collected to leverage the final DNA yield. The V4 variable region of the 16S rDNA and Internal Transcribed Spacer (ITS1) rDNA was used to evaluate bacterial and fungal diversity. From the sequencing, we obtained 3,352,661 and 4,433,595 reads clustered in 930 and 3182 amplicon sequence variants (ASVs) for fungi and bacteria, respectively. Amplicon sequencing revealed a predominance of Basidiomycota (49%) and Ascomycota (42%) in the fungal component; Bacteroidota (65.8%) is the main representative among the bacterial phyla. Basidiomycetes are almost exclusively represented by yeast-like fungi. Our findings provide the first comprehensive overview of both fungal and bacterial diversity in the Antarctic Polar Plateau’s surface snow/ice near Concordia Station and to identify seasonality as the main driver of microbial diversity; we also detected the most sensitive microorganisms to these factors, which could serve as indicators of human impact in this pristine environment and aid in planetary protection for future exploration missions. Full article
(This article belongs to the Special Issue Multi-Omics of Extremophilic Organisms)
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