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Nachiket Marathe

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Telefon: 90739476
Avdeling: Fremmed- og smittestoff

My current research focus is on investigating the role of the external environment, especially marine environment, in the emergence, transfer and selection of antibiotic-resistance. We study AMR in a One Health context, where human health, animal health and the environment are considered connected.  My research also focuses on marine microbial ecology, with emphasis on marine ecosystem and the effect of climate change and pollutants on the marine microbiota. I currently have  six ongoing external projects where we use variety of state-of-the-art methods like genomics, metagenomics (eDNA), functional metagenomics, proteomics, computational modelling and machine learning for our research. 

Arbeidsområde

One Health, Antimicrobial resistance (AMR),  Microbial ecology, Genomics, Antibiotic resistance, Human / animal microbiota, Clinical microbiology, Proteomics, Metagenomics,  Microbial taxonomy, Marine Ecosystem, Climate change and marine microbiota, Arctic microbiology computational modelling, Seafood safety.

Curriculum Vitae

PERSONAL DETAILS

Research Professor (1183) in “Contaminants and Biohazards” research group, Institute of Marine Research, Bergen, Norway

ORCID: https://orcid.org/0000-0003-2955-3402, Research gatehttps://www.researchgate.net/profile/Nachiket-Marathe

Date of birth: 18-09-1983  Nationality:  Indian 

EDUCATION

2009-2014       Ph.D. in Biotechnology at National Centre for Cell Science, University of Pune, India

2005-2007       Master in Microbiology at Abasaheb Garware college- University of Pune, India.

2003-2005        Bachelors in Microbiology at Abasaheb Garware college- University of Pune, India.                                

PREVIOUS POSITIONS

2018-2021       Researcher (position code 1110) in “Contaminants and Biohazards” research group, Institute of Marine Research, Bergen, Norway

2014-2018        Post-doctoral researcher at the department of infectious diseases, University of Gothenburg, Sweden.

2007-2009        Research assistant (Molecular biology unit), National Centre for Cell Science, Pune, India.

FELLOWSHIPS AND AWARDS

2004-05             Student of the year award, Abasaheb Garware college, University of Pune, India.

2009-2014        Received prestigious Council of Scientific and Industrial Research (CSIR), Government of India- fellowship for PhD. The success rate for this fellowship is < 1%.

2018                Best oral presentation award: at International conference on Microbiome Research. November 2018. Pune India. Title: Anthropogenic activities modulate environmental microbiota and antibiotic resistance.

Supervision of PhD students and Postdoc: Supervised 4 PhDs, 4 Postdocs and 9 master students till date.

PROJECT MANAGEMENT: EXTERNAL funding

2025-2029AMR-Aqua- Antimicrobial resistance (AMR) in the marine aquaculture-human interface, knowledge gaps and possible interventions: A One Health approach
Role: Project leader
Funding: Research Council of Norway (RCN/NFR).
 
2025-2026- Carbarales- Data generation on Carbapenemase-producing Enterobacterales (CPEs) in the food chain in the EU/EFTA.
Role: Project manager IMR.
Funding: European food safety authority (EFSA).
 
2025-2026Nordcide- Nordic consortium on the role of biocides in AMR.
Role: Project manager IMR.
Funding: NordForsk.
 
2024-2026BETO-Better tools for diagnostics of pathogen and AMR.
Role: Project manager at IMR.
Funding: European partnership on animal health and welfare ERC
 
2024-2027CONTRAST Contaminants of emerging concern: An integrated approach for assessing impacts on the marine Environment.
Role- Participant- task leader.
Funding: EU-Horizon ERC
 
2023-2026- Fearless- Fate and effects of perfluoroalkyl substances and their precursors and alternatives in Norwegian marine environments and seafood species.
Role: Work package leader.
Funding: Research Council of Norway (RCN/NFR).
 
2023-2024-Research mobility grant (for 3 months stay in Chile)
Role: Project leader
Funding: Research Council of Norway (RCN/NFR)
 
2021-2025Res-Marine: - Flushing into the ocean: Tracking antibiotic resistance in the marine environment- Researcher Project Young Research Talents grant recipient- Project manager / grant recipient- Research council of Norway.
Role: Project leader. 
Funding: Research Council of Norway (RCN/NFR) young research talents. 
 
2021-2024BIOCIDE - Antibacterial biocides in the water cycle - an integrated approach to assess and manage risks for antibiotic resistance development-
Role: Project manager IMR.
Funding: JPI-Aquatic pollutants joint translational call 2020.
 
2019-2023KLEB-GAP: - Klebsiella pneumoniae - a key driver in the global spread of antimicrobial resistance and a target for new approaches in diagnostics, surveillance and alternative therapeutics.
Role: Project manager at IMR. 
Funding: Trond Mohn Foundation. 
 

Research achievements: I have been able to publish my work in multidisciplinary peer-reviewed journals with a high impact and readership in the field of environmental microbiology such as The Lancet Microbe (IF 20.9), Microbiome (IF 13.8), Water Research (IF 11.5), Environmental Science & Technology (IF 10.9), Environment International (IF 10.3) and Science of The Total Environment (IF 8.2). I have a total of 58 publications, 6 preprints, two technical reports and one book chapter, 18 as 1st author and 15 as the last author, with 44 publications without my phD supervisor as a co-author. I have a total of 2917 citations and H-index of 26 and i10 index of 39 (as on 6th January 2025). I have given >20 invited scientific talks and presented >30 posters in scientific conferences. 

Publikasjoner

Vitenskapelige artikler (NVI)

2025

Identification of clinical carbapenemases, 478 novel β-lactamases and putative seven new bacterial phyla from wastewater contaminated high arctic fjord sediments

Manish Prakash Victor, Lise Øvreås, Nachiket Marathe
bioRxiv
2025

Identification of novel FosX family determinants from diverse environmental samples

Nicolas Kieffer, Maria-Elisabeth Böhm, Fanny Berglund, Nachiket Prakash Marathe, Michael R. Gillings, D. G. Joakim Larsson
Journal of Global Antimicrobial Resistance 41 p. 8-14
2024

Novel antibiotic resistance genes from the hospital effluent are disseminated into the marine environment in Norway

Vera Radisic, Manish Prakash Victor, Didrik Hjertaker Grevskott, Nachiket Marathe
medRxiv
2024

Emergence and dissemination of epidemic-causing OXA-244 carbapenemase-producing Escherichia coli ST38 through hospital sewage in Norway, 2020–2022

Didrik Hjertaker Grevskott, Vera Radisic, Franscisco Salvà-Serra, Edward R. B. Moore, Kristine Akervold, Manish Prakash Victor, Nachiket Marathe
Journal of Hospital Infection 145 p. 165-173
2024

Multidrug-resistant Enterococcus faecium strains enter the Norwegian marine environment through treated sewage

Vera Radisic, Didrik Hjertaker Grevskott, Nadja Junghardt, Lise Øvreås, Nachiket Prakash Marathe
MicrobiologyOpen 13
2024

Tigecycline-resistant Klebsiella pneumoniae strains from sewage in Norway carry heavy-metal resistance genes encoding conjugative plasmids

Vera Radisic, Franscisco Salvà-Serra, Edward RB Moore, Nachiket Marathe
Journal of Global Antimicrobial Resistance
2024

Emergence and dissemination of epidemic-causing OXA-244 carbapenemase-producing Escherichia coli ST38 through hospital sewage in Norway, 2020–2022

Didrik Hjertaker Grevskott, Vera Radisic, Franscisco Salvà-Serra, Edward R. B. Moore, Kristine Akervold, Manish Victor, Nachiket Marathe
Journal of Hospital Infection
2023

Complete sequence of a new conjugative multidrug-resistance encoding IncFII/IncFIA/IncFIB plasmid carrying NDM-6 metallo-β-lactamase from pathogenic Escherichia coli sequence type 167 isolated from sewage in Norway

Didrik Hjertaker Grevskott, Franscisco Salvà-Serra, Edward RB Moore, Nachiket Marathe
Journal of Global Antimicrobial Resistance
2023

Co-localization of clinically relevant antibiotic- and heavy metal resistance genes on plasmids in Klebsiella pneumoniae from marine bivalves

Fredrik Håkonsholm, Marit Hetland, Iren Høyland Löhr, Bjørn Tore Lunestad, Nachiket Prakash Marathe
MicrobiologyOpen 12
2023

Seawater from Bergen harbor is a reservoir of conjugative multidrug-resistance plasmids carrying genes for virulence

Nachiket Marathe, Didrik Hjertaker Grevskott, Francisco Salvà Serra, Priyank Sharad Nimje, Cecilie Smith Svanevik, Bjørn Tore Lunestad, Edward RB Moore
International Journal of Hygiene and Environmental Health 248
2023

Responses of carbapenemase-producing and non-producing carbapenem-resistant Pseudomonas aeruginosa strains to meropenem revealed by quantitative tandem mass spectrometry proteomics

Franscisco Salvà-Serra, Daniel Jaén-Luchoro, Nachiket Marathe, Ingegerd Adlerberth, Edward RB Moore, Roger Karlsson
Frontiers in Microbiology
2023

Knockout of Targeted Plasmid-Borne β-Lactamase Genes in an Extended-Spectrum-β-Lactamase-Producing Escherichia coli Strain: Impact on Resistance and Proteomic Profile

Daniel Jaén-Luchoro, Roger Karlsson, Antonio Busquets, Beatriz Piñeiro Iglesias, Nahid Karami, Nachiket Marathe, Edward RB Moore
Microbiology spectrum
2022

Long-term investigation of the ‘soft flesh’ condition in Northeast Atlantic mackerel induced by the myxosporean parasite Kudoa thyrsites (Cnidaria, Myxozoa): Temporal trends and new molecular epidemiological observations

Lucilla Giulietti, Egil Erlingsson Karlsbakk, Paolo Cipriani, Miguel Bao Dominguez, Julia Endresen Storesund, Nachiket Marathe, Arne Levsen
Fisheries Research 248
2022

Insights into the genetic diversity, antibiotic resistance and pathogenic potential of Klebsiella pneumoniae from the Norwegian marine environment using whole-genome analysis

Fredrik Håkonsholm, Marit Andrea Klokkhammer Hetland, Cecilie Smith Svanevik, Bjørn Tore Lunestad, Iren Høyland Löhr, Nachiket Prakash Marathe
International Journal of Hygiene and Environmental Health 242 p. 1-9
2022

Distribution of Kudoa thyrsites (Cnidaria, Myxozoa) myoliquefactive stages in Northeast Atlantic mackerel (Scomber scombrus) inferred from qPCR and histology

Lucilla Giulietti, Heidi Johansen Nedberg, Egil Erlingsson Karlsbakk, Nachiket Prakash Marathe, Julia Endresen Storesund, Stig Mæhle, Ingrid Uglenes Fiksdal, Dawit Berhe Ghebretnsae, Arne Levsen
Parasitology Research 121 p. 2325-2336
2022

Genome sequence of Vibrio anguillarum isolates carrying a novel class A β-lactamase VAN-1: do migratory fish transport novel resistance factors?

Priyank Sharad Nimje, Nachiket Marathe
Journal of Global Antimicrobial Resistance
2022

Novel Plasmid Carrying Mobile Colistin Resistance Gene mcr-4.3 and Mercury Resistance Genes in Shewanella baltica: Insights into Mobilization of mcr-4.3 in Shewanella Species

Nachiket Marathe, Francisco Salvà Serra, Priyank Sharad Nimje, Edward RB Moore
Microbiology spectrum 10
2022

Sewage-based surveillance shows presence of Klebsiella pneumoniae resistant against last resort antibiotics in the population in Bergen, Norway

Vera Radisic, Didrik Hjertaker Grevskott, Bjørn Tore Lunestad, Lise Øvreås, Nachiket Marathe
International Journal of Hygiene and Environmental Health 248
2021

Genomic characterization of multidrug-resistant Bacillus toyonensis strain 4HC1 isolated from marine plastic in Norway

Vera Radisic, Nachiket Marathe
Journal of Global Antimicrobial Resistance 26 p. 249-251
2021

Draft Genome Sequence of Hafnia paralvei Strain VBC_1714, Isolated from Frozen Cod Fillet Imported from Russia to Norway

Julia Endresen Storesund, Didrik Hjertaker Grevskott, Nachiket Marathe, Bjørn Tore Lunestad, Cecilie Smith Svanevik
Microbiology Resource Announcements (MRA)
2021

First report of mobile tigecycline resistance gene tet(X4)-harbouring multidrug-resistant Escherichia coli from wastewater in Norway

Nachiket Prakash Marathe, Cecilie S. Svanevik, Fatemeh Z. Ghavidel, Didrik H. Grevskott
Journal of Global Antimicrobial Resistance 27 p. 37-40
2021

Resistance profiles and diversity of β-lactamases in Escherichia coli strains isolated from city-scale sewage surveillance in Bergen, Norway mimic clinical prevalence

Didrik Hjertaker Grevskott, Fatemeh Zamanzad Ghavidel, Cecilie Smith Svanevik, Nachiket Marathe
Ecotoxicology and Environmental Safety 226
2021

Draft Genome Sequence of Multidrug-Resistant Pseudomonas protegens Strain 11HC2, Isolated from Marine Plastic Collected from the West Coast of Norway

Vera Radisic, Bjørn Tore Lunestad, Monica Sanden, Michael Bank, Nachiket Marathe
Microbiology Resource Announcements (MRA)
2021

Draft Genome Sequence of Multidrug-Resistant Pseudomonas protegens Strain 11HC2, Isolated from Marine Plastic Collected from the West Coast of Norway

Vera Radisic, Bjørn Tore Lunestad, Monica Sanden, Michael S Bank, Nachiket P Marathe
Microbiology Resource Announcements 10(2)
2020

Nanopore sequencing reveals genomic map of CTX-M-type extended-spectrum β-lactamases carried by Escherichia coli strains isolated from blue mussels (Mytilus edulis) in Norway

Didrik Hjertaker Grevskott, Francisco Salvà Serra, Edward RB Moore, Nachiket Marathe
BMC Microbiology
2020

Structural and biochemical characterization of the environmental MBLs MYO-1, ECV-1 and SHD-1

Christopher Frøhlich, Vidar Sørum, Sandra Huber, Ørjan Samuelsen, Fanny Berglund, Erik Kristiansson, Stathis D. Kotsakis, Nachiket Marathe, DG Joakim Larsson, Hanna-Kirsti Schrøder Leiros
Journal of Antimicrobial Chemotherapy 75 p. 2554-2563
2020

Vibrios from the Norwegian marine environment: Characterization of associated antibiotic resistance and virulence genes

Fredrik Håkonsholm, Bjørn Tore Lunestad, Jose Roberto Aguirre Sanchez, Jaime Martinez-Urtaza, Nachiket Marathe, Cecilie Smith Svanevik
MicrobiologyOpen 9
2020

Structural and biochemical characterization of the environmental MBLs MYO-1, ECV-1 and SHD-1

Christopher Fröhlich, Vidar Sørum, Sandra Huber, Ørjan Samuelsen, Fanny Berglund, Erik Kristiansson, Stathis D Kotsakis, Nachiket P Marathe, DG Joakim Larsson, Hanna-Kirsti S Leiros
Journal of Antimicrobial Chemotherapy 75 (9) p. 2554-2563
2020

Nanopore sequencing reveals genomic map of CTX-M-type extended-spectrum β-lactamases carried by Escherichia coli strains isolated from blue mussels (Mytilus edulis) in Norway

Didrik H Grevskott, Francisco Salvà-Serra, Edward RB Moore, Nachiket P Marathe
BMC Microbiology 20 p. 134
2020

Discovery of a novel integron-borne aminoglycoside resistance gene present in clinical pathogens by screening environmental bacterial communities

Maria-Elisabeth Böhm, Mohammad Razavi, Nachiket Marathe, Carl-Fredrik Flach, D. G. Joakim Larsson
Microbiome 8 p. 1-11
2020

Antibiotic sensitivity screening of Klebsiella spp. and Raoultella spp. isolated from marine bivalve molluscs reveal presence of CTX-M-producing K. pneumoniae

Fredrik Håkonsholm, Marit Andrea Klokkhammer Hetland, Cecilie Smith Svanevik, Arnfinn Sundsfjord, Bjørn Tore Lunestad, Nachiket Marathe
Microorganisms 8:1909 p. 1-15
2020

Marine plastics from Norwegian west coast carry potentially virulent fish pathogens and opportunistic human pathogens harboring new variants of antibiotic resistance genes

Vera Radisic, Priyank Sharad Nimje, André Marcel Bienfait, Nachiket Marathe
Microorganisms 8:1200 p. 1-13
2019

Scandinavium goeteborgense gen. nov., sp. nov., a New Member of the Family Enterobacteriaceae Isolated From a Wound Infection, Carries a Novel Quinolone Resistance Gene Variant

Nachiket Marathe, Francisco Salvà-Serra, Roger Karlsson, DG Joakim Larsson, Edward RB Moore, Liselott Svensson-Stadler, Hedvig E. Jakobsson
Frontiers in Microbiology 10
2019

Identification and reconstruction of novel antibiotic resistance genes from metagenomes

Fanny Berglund, Tobias Osterlund, Fredrik Boulund, Nachiket Marathe, D.G. Joakim Larsson, Erik Kristiansson
Microbiome 7 p. 1-14
2018

Antibiotics and common antibacterial biocides stimulate horizontal transfer of resistance at low concentrations

Jutkina J, Marathe NP, Flach C-F, Larsson DGJ
Science of the total Environment 5
2018

Functional metagenomics reveals a novel carbapenem-hydrolyzing mobile beta-lactamase from Indian river sediments contaminated with antibiotic production waste

Marathe NP, Janzon A, Kotsakis SD, Flach C-F, Razavi M, Berglund F, Kristiansson E, Larsson DGJ
Environment international 112
2018

Molecular profiling of mucosal tissue associated microbiota in patients manifesting acute exacerbations and remission stage of ulcerative colitis

Walujkar SA, Kumbhare SV, Marathe NP, Patangia DV, Lawate PS, Bharadwaj RS, Shouche YS
World Journal of Microbiology and Biotechnology 34
2017

Identification of 76 novel B1 metallo-β-lactamases through large-scale screening of genomic and metagenomic data

Berglund F, Marathe NP, Österlund T, Bengtsson-Palme J, Kotsakis S, Flach C-F, Larsson DGJ, Kristiansson E
Microbiome 5
2017

Computational discovery and functional validation of novel fluoroquinolone resistance genes in public metagenomic data sets

Boulund F, Berglund F, Flach C-F, Bengtsson-Palme J, Marathe NP, Larsson DGJ, Kristiansson E
BMC Genomics 18
2017

Untreated urban waste contaminates Indian river sediments with resistance genes to last resort antibiotics

Marathe NP, Pal C, Gaikwad SS, Jonsson V, Kristiansson E, Larsson DGJ
Water Research 124
2017

Discovery of the fourth mobile sulfonamide resistance gene

Razavi M, Marathe NP, Gillings MR, Flach C-F, Kristiansson E, Larsson DGJ
Microbiome 5
2016

Mossambicus tilapia (Oreochromis mossambicus) collected from water bodies impacted by urban waste carries extended-spectrum beta-lactamases and integron-bearing gut bacteria

Nachiket P Marathe, Swapnil S Gaikwad, Ankita A Vaishampayan, Mandar H Rasane, Yogesh S Shouche, Wasudev N Gade
Journal of biosciences 41(3) p. 341-346
2016

Limited bacterial diversity within a treatment plant receiving antibiotic-containing waste from bulk drug production

Nachiket P Marathe, Sudarshan A Shetty, Yogesh S Shouche, DG Joakim Larsson
PLoS One e0165914
2013

Seawater from Bergen harbor is a reservoir of conjugative multidrug-resistance plasmids carrying genes for virulence

Nachiket Marathe, Didrik Hjertaker Grevskott, Francisco Salvà Serra, Priyank Sharad Nimje, Cecilie Smith Svanevik, Bjørn Tore Lunestad, Brian Edward Moore
International Journal of Hygiene and Environmental Health

Annet tidsskriftbidrag

2023

Emergence of new IncHI2 multidrug-resistance plasmids carrying VIM-1 metallo-β-lactamase in Escherichia coli in Norway

Nachiket Prakash Marathe, Vera Radisic, Francisco Salvà-Serra, Edward R B Moore, Didrik Hjertaker Grevskott
Lancet Microbe

Faglige foredrag

2025

Fate and effects of perfluoroalkyl substances and their and alternatives in the marine environments

Aasim M. Ali, Camilla Kirkeli, Magnus Lindhard, Stig Valdersnes, Liv Ingeborg Rosvoll Søfteland, Bjørn Einar Grøsvik, Stepan Boitsov, Monica Sanden, Bente Merete Nilsen, Are Sæle Bruvold, Julia Endresen Storesund, Nachiket Prakash Marathe, Sylvia Frantzen, Roland Kallenborn, Christopher P. Higgins, Leiv Kristen Sydnes
2023

Klebsiella pneumoniae in the marine setting – a challenge for seafood safety?

Fredrik Håkonsholm, Arnfinn Sundsfjord, Cecilie Smith Svanevik, Bjørn Tore Lunestad, Nachiket Marathe
2022

Activity of NRL Seafood Norway

Bjørn Tore Lunestad, Nachiket Marathe
2022

Antibiotic resistance in the marine environment

Nachiket Marathe, Didrik Hjertaker Grevskott, Vera Radisic, Priyank S. Nimje, Kristine Ankervold, Francisco Salvà Serra, Fredrik Håkonsholm, Cecilie Smith Svanevik, Bjørn Tore Lunestad, Edward RB Moore
2020

Mikroplast i sjømat – Overvåking

Tanja Kögel, Stepan Boitsov, Bjørn Einar Grøsvik, Mats Brockstedt Olsen Huserbråten, Nachiket Prakash Marathe
2020

Plastforsøpling og matsikkerhet

Tanja Kögel, Nachiket Prakash Marathe
2019

New monsters from the sea? The emerging risk from human pathogenic Vibrios

Fredrik Håkonsholm, Bjørn Tore Lunestad, Julia Endresen Storesund, Nachiket Marathe, Cecilie Smith Svanevik
2019

Klebsiella update from the Institute of Marine Research

Cecilie Smith Svanevik, Fredrik Håkonsholm, Julia Endresen Storesund, Bjørn Tore Lunestad, Nachiket Marathe
2019

Characterisation of Vibrio spp. from Norway

Cecilie Smith Svanevik, Fredrik Håkonsholm, Julia Endresen Storesund, Nachiket Marathe, Bjørn Tore Lunestad

Poster

2025

Screening of PFAS in wastewater and sewage sludge from WWTPs in Bergen, Norway

Are Sæle Bruvold, Nachiket Marathe, Didrik Hjertaker Grevskott, Nawaf Al Shehri, Stig Valdersnes, Aasim Musa Mohamed Ali

Rapporter og avhandlinger

2023

Monitoring programme for veterinary control on seafood products imported to Norway from third countries - Results from 2021

Julia Endresen Storesund, Martin Wiech, Bjørn Tore Lunestad, Nachiket Prakash Marathe, Helge Torbjørn Hove
Rapport fra havforskningen
2021

Monitoring programme for veterinary control on seafood products imported to Norway from third countries – Results from 2020 - In accordance with Commission Regulation (EC) No 136/2004, Annex II, Part 1

Julia Endresen Storesund, Martin Wiech, Bjørn Tore Lunestad, Nachiket Prakash Marathe, Helge Torbjørn Hove
2020

Monitoring programme for veterinary control on seafood products imported to Norway from third countries – Results from 2019: In accordance with Commission Regulation (EC) No 136/2004, Annex II, Part 1

Helge Torbjørn Hove, Julia Endresen Storesund, Bjørn Tore Lunestad, Nachiket Marathe, Martin Wiech
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