Understanding the slow microbial life in the deep dark biosphere

PhD defence, Friday 16 June 2017, Snehit Satish Mhatre

2017.06.13 | Maj Thimm Carlsen

Date Fri 16 Jun
Time 13:00 14:30
Location Ny Munkegade 114-116, 8000 Aarhus C, building 1540-229
Snehit Satish Mhatre

Snehit Satish Mhatre

Survival of microorganisms in the nutrient and energy deprived conditions of deep biosphere has been a topic of interest for geomicrobiologists. During his PhD, Snehit Mhatre studied slow microbial activity in the subsurface marine sediments from recent to 10 million years in relation to the degradability of buried organic matter using a revised stereo-isomeric D:L-amino acid model. Additionally, he also showed that a protein L-isoaspartate methyltransferase gene coding for a protein involved in repairing cellular damage caused due to extreme nutrient and energy limitations is widely distributed in the deep biosphere microbial community. His work therefore opens a new avenue in exploring the possible mechanisms involved in facilitating the long-term survival of microorganisms under energy-deprived conditions.


The PhD degree was completed at the Center for Geomicrobiology, department of Bioscience, Science and Technology, Aarhus University.

This résumé was prepared by the PhD student.

Time: Friday 16 June 2017 at 13:00
Place: Building 1540, room 229, Aarhus University, Ny Munkegade 114,  8000 Aarhus C

Title of dissertation: Microbial biomass and necromass turnover times in the contrasting seafloor settings.

Members of the assessment committee:

Professor Bo Thamdrup, Department of Biology, University of Southern Denmark

Associate professor Kai Mangelsdorf, GFZ German Research Centre for Geosciences.

Senior Researcher Nils Risgaard-Petersen (chair), Department of Bioscience, Aarhus University.

Main supervisor: Professor Bente Aagaard Lomstein, Department of Bioscience, Aarhus University

Co-supervisor: Professor Bo Barker Jørgensen, Department of Bioscience, Aarhus University

Language: The PhD dissertation will be defended in English

The defense is public.

The dissertation is available for reading at the Graduate School of Science and Technology/GSST, Ny Munkegade 120, building 1520, rooms 128-134, 8000 Aarhus C.

Center for Geomicrobiology, PhD defense