I am a biogeochemist, enthusiast fascinated by the microbial diversity and their interaction, participation in various biogeochemical cycles, in various evolution of life and biodiversity on Earth. This led me to pursue a Master's in Microbiology. A continued interest in microbial functional diversity and role in environmental chemistry led me down the PhD lane. My doctoral dissertation work was based on studying the role of arsenite oxidizing bacterial assemblages in arsenic contaminated aquifers and to understand how the sedimentary organic matter that leaches into the aquifers during recharge, shapes those indigenous microbial populations.
The primary focus of my research is on:
Applying various approaches to study the diversity and microbial process in a niche by characterizing multiple functional genes. Culture dependent method to study microbial metabolism.
2) Groundwater characterization and remediation
Trace metal contamination, aquatic biomarkers, biotransformation and mobilization in aquifers.
3) Geochemical control on microbial processes
Soil organic matter quality and lability in aquatic environments.
Geochemical proxies to trace natural and/or human-induced changes.
4) Microbial stress physiology
Biodiversity and survival of microorganisms in extreme environments.
Multiple proxies (e.g. PLFA) to study effect of environmental stress.
- Doctor of Philosophy (PhD) - Biogeochemistry; IISER Kolkata & Linköping University, Sweden; (2010-16)
- Master of Science (M.Sc.), Microbiology, University of Burdwan; (2007-09)
- Bachelor of Science (B.Sc. with Honors) Microbiology, University of Burdwan; (2004-07)
(1) Chikkanna, A., Mehan, L., Sarath P. K. & Ghosh, D*. (2019). Arsenic Exposures, Poisoning, and Threat to Human Health: Arsenic Affecting Human Health. In P. Papadopoulou, C. Marouli, & A. Misseyanni (Eds.), Environmental Exposures and Human Health Challenges (pp. 86-105). Hershey, PA: IGI Global. doi:10.4018/978-1-5225-7635-8.ch004 (Online version)
(2) Ghosh D*, Routh J. (2018) Translocation of Arsenic in Food Chain: A case study from villages in Gangetic basin, India. In: Environmental Arsenic in a Changing World, Y. Zhu, H. Guo, P. Bhattacharya, A. Ahmed, J. Bundschuh, R. Naidu (Eds). Proceedings of the Seventh International Congress on Arsenic in the Environment (As2018), Beijing, China. CRC Press. (Online version).
(3) Chikkanna A, Ghosh D*, Kishore A. (2018). Expression and characterization of a potential exopolysaccharide from a newly isolated halophilic thermotolerant bacteria Halomonas nitroreducens strain WB1. PeerJ, 6:e4684, DOI: 10.7717/peerj.4684. (Online version) (IF 2.353)
(4) Ghosh D, Bhadury P, Routh J. (2018) Coping with arsenic stress: Adaptations of arsenite oxidizing bacterial membrane lipids to increasing arsenic levels. MicrobiologyOpen, e594. DOI:10.1002/mbo3.594. (Online Version) (IF 2.7)
(5) Ghosh D, Bhadury P. (2018) Microbial Cycling of Arsenic in the Aquifers of Bengal Delta Plains (BDP). In: Advances in Soil Microbiology: Recent Trends and Future Prospects, (Eds: Adhya, T.K., Lal, B., Mohapatra, B., Paul, D., Das, S.), Springer Singapore, pp 91-108. DOI: 10.1007/978-981-10-6178-3_5 (Online version)
(6) Chikkanna, A., Ghosh, D*. (2018). Microbial Mineral Dissolution and Environmental Disasters: Microbes and Their Mineral Interactions. In Pankaj, & A. Sharma (Eds.), Microbial Biotechnology in Environmental Monitoring and Cleanup (pp. 125-151). Hershey, PA: IGI Global. DOI:10.4018/978-1-5225-3126-5.ch008 (Online version)
(7) Ghosh D*, Routh J, Bhadury P. (2017) Sub-surface biogeochemical characteristics and its effect on arsenic cycling in the Holocene grey sand aquifers of the Lower Bengal Basin. Frontiers in Environmental Science, 5:82; DOI: 10.3389/fenvs.2017.00082. (PDF) (Online version) (CiteScore 3.14)
(8) Ghosh D (2016) Distribution and Biogeochemical Cycling of Arsenic In Grey and Brown Sand Aquifers in the Bengal Delta Plains (India) Linköpings universitet, Institutionen för tema, Tema Miljöförändring. Linköpings universitet, Filosofiska fakulteten. URN: urn:nbn:se:liu:diva-126598; (Online version)
(9) Ghosh D, Routh J, Bhadury P. (2016) Characterization of lipid biomarkers and trace elements in Holocene arsenic contaminated aquifers of the Bengal Delta Plains, India. Arsenic Research and Global Sustainability: Proceedings of the Sixth International Congress on Arsenic in the Environment (As2016), Stockholm, Sweden. CRC Press. Chapter 57, pp 125-126. (Online version)
(10) Ghosh D, Routh J, Därio M, Bhadury P. (2015) Elemental and biomarker characteristics in a Pleistocene aquifer vulnerable to arsenic contamination in the Bengal Delta Plain, India. Applied Geochemistry, 61:87-98; DOI: 10.1016/j.apgeochem.2015.05.007. (PDF) (Online version) (IF 2.894)
(11) Ghosh D, Routh J, Bhadury P. (2015) Characterization and microbial utilization of dissolved lipid organic fraction in arsenic impacted aquifers (India). Journal of Hydrology, 527:221-233; DOI:10.1016/j.jhydrol.2015.04.051. (PDF) (Online version) (IF 4.405)
(12) Shrivastava A*, Ghosh D*, Dash A, Bose S. (2015) Arsenic Contamination in Soil and Sediment in India: Sources, Effects, and Remediation.Current Pollution Report; 1:35-46. DOI:10.1007/s40726-015-0004-2. *Equal contribution (PDF) (Online version) (IF 3.762)
(13) Ghosh D, Bhadury P, Routh J. (2014) Diversity of arsenite oxidizing bacterial communities in arsenic-rich deltaic aquifers in West Bengal, India. Frontiers in Microbiology, 5:602. DOI:10.3389/fmicb.2014.00602.(One of the most viewed and downloaded articles of 2015) (PDF) (Online version) (IF 4.259)
- Chikanna A, Ghosh D. (2019) Role of microbial exopolysaccharide in binding and removal of toxic heavy metals and coliforms from contaminated groundwater: bioremediation approach. AOGS Meeting-2019, Singapore.
- Donselaar R, Kumar S, Ghosh D, Burgers F, Ghosh A. (2019) The arsenic-pollution problem: Volumetrics and mobilization processes of geogenic arsenic in Holocene clay-plug sediment. International Meeting of Sedimentology-2019, Rome.
- Ghosh, D, Routh, J. (2018). Translocation of arsenic in food chain: a case study from villages in Gangetic basin, India. 7th International conference on Arsenic in the Environment, As2018, Beijing, China.
- Ghosh D, Mukherjee S., Kishore A, Chikanna A. (2017) Characterization of high Exopolysaccharide produced by a halophilic thermotolerant bacteria Halomonas nitroreducens strain WB1. Goldschmidt Conference-2017, Paris.
- Ghosh D, Donselaar ME, Routh J (2017) Role of organic carbon of oxbow lakes in making aquifers vulnerable to arsenic mobilization. IMOG 2017, Florence.
- Ghosh D. (2016) Organic geochemistry shaping microbial community structure and diversity. Science of the Future (SOF), Kazan, Russia.
- Ghosh D, Routh J, Därio M, Bhadury P. (2015) Distribution and characterization of lipid biomarkers and trace metals in an Arsenic contaminated Holocene aquifer of Bengal Delta Plains, India. IMOG 2015, Prague.
- Ghosh D, Routh J, Därio M, Bhadury P. (2014) Distribution and characterization of lipid biomarkers and trace metals in an Arsenic contaminated Pleistocene aquifer in West Bengal, India. GSA Annual Meeting 2014, Vancouver.
- Ghosh D, Routh J, Bhadury P. (2014) Dissolved organic carbon impact microbial arsenic cycling in aquifers of West Bengal (India). GSA Annual Meeting 2014, Vancouver.
- Ghosh D, Bhadury P, Routh J. (2012) Detection of Arsenite oxidizing microbial communities in the Arsenic contaminated deep-water aquifers of Bengal Delta Plain (BDP). 34th International Geological Congress (IGC) Brisbane, Australia.
- Ghosh D, Bhadury P, Routh J. (2012) Diversity and temporal changes in arsenite oxidation by indigenous bacteria population in Bengal Delta Plain Aquifers (West Bengal, India). Frontiers in modern biology FIMB-2012, IISER Kolkata.
- Ghosh D, Bhadury P, Routh J. (2011) Arsenite oxidation by indigenous bacteria in Bengal Delta Plain Aquifers (West Bengal, India). Goldschmidt Conference-2011, Prague, p. 912.