I am a soil scientist by training and aim to do interdisciplinary research using molecular microbial ecology tools to study and characterize microbes that have important functional roles and ecological implications in our biosphere. My research in Biosphere 2 is focused on studying microbial community diversity patterns on a landscape scale and working with other researchers at the interface of microbiology, hydrology, and geochemistry. Using the LEO hillslopes as a system, my goal is to determine microbial community diversity across length, breadth, and depth of the landscape, as affected by controlled rainfall regime and geochemical weathering of the slopes. I am also studying microbial communities that potentially contribute to rock weathering and soil formation over time and space.
Soil exchange rates of COS and CO18O differ with the diversity of microbial communities and their carbonic anhydrase enzymes . Meredith, L.K., Ogée, J., Boye, K., Singer, E., Wingate, L., von Sperber, C., Sengupta, A., Whelan, M., Pang, E., Keiluweit, M., Brüggemann, N., Berry, J. A. & Welander, P.V. (2019): The ISME Journal 13: 290–300.
Particle tracer transport in a sloping soil lysimeter under periodic, steady state conditions . Wang, C., McNew, C.P., Lyon, S.W., Walter, M.T., Volkman, T.H.M., Abramson, N., Sengupta, A., Wang, Y., Meira Neto, A.A., Pangle, L., Troch, P.A., Kim, M., Harman, C., Dahlke, H.E. (2019): Journal of Hydrology 569: 61-76.
Controlled Experiments of Hillslope Coevolution at the Biosphere 2 Landscape Evolution Observatory: Toward Prediction of Coupled Hydrological, Biogeochemical, and Ecological Change . Volkmann Till H. M., Aditi Sengupta, Luke A. Pangle, Katerina Dontsova, Greg A. Barron-Gafford, Ciaran J. Harman, Guo-Yue Niu, Laura K. Meredith, Nate Abramson, Antonio A. Meira Neto, Yadi Wang, John R. Adams, David D. Breshears, Aaron Bugaj, Jon Chorover, Alejandro Cueva, Stephen B. DeLong, Matej Durcik, Ty P. A. Ferre, Edward A. Hunt, Travis E. Huxman, Minseok Kim, Raina M. Maier, Russell K. Monson, Jon D. Pelletier, Michael Pohlmann, Craig Rasmussen, Joaquin Ruiz, Scott R. Saleska, Marcel G. Schaap, Michael Sibayan, Markus Tuller, Joost L. M. van Haren, Xubin Zeng and Peter A. Troch (2018): in: Hydrology of Artificial and Controlled Experiments (eds. Jiu-Fu Liu and Wei-Zu Gu), IntechOpen, pp. 25-74.
Experimental observation of a hillslope-scale rank StorAge Selection function: Process controls on its functional form, time variability, and hysteresis . Kim, M., Volkmann, T.H.M., Abramson, N., Bugaj, A., Hunt, E., Matos, K., Meira Neto, A.A., Sengupta, A., Wang, Y., Meredith, L.K., Dontsova, K., Harman, C.J., Chorover, J., and Troch, P.A. (2018): Abstract H13N-1958 presented at 2018 AGU Fall Meeting, Washington, D.C., 10-14 Dec.
Methanotrophic bacterial diversity in two diverse soils under varying land-use practices as determined by high-throughput sequencing of the pmoA gene . Sengupta, A. and Dick, W. A. (2017): Applied Soil Ecology 119: 35-45.
Functional Predictions of Microbial Communities in Soil as Affected by Long-term Tillage Practices . Hariharan, J., Sengupta, A., Grewal, P., and Dick, W.A. (2017): Agricultural & Environmental Letters 2(1): 170031.
Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations . Sengupta, A. Wang, Y., Meira-Neto, A.A., Matos, K.A., Dontsova, K., Root, R., Neilson, J.W., Maier, R.M., Chorover, J., and Troch, P.A. (2016): Journal of Visualized Experiments 115: e54536.
A priori Considerations When Conducting High-Throughput Amplicon-Based Sequence Analysis . Sengupta, A. and Dick, W. A. (2016): Agricultural & Environmental Letters 1(1).
Bacterial Community Diversity in Soil Under two Tillage Practices as Determined by Pyrosequencing . Sengupta, A., Dick, W.A. (2015): Microb Ecology 70(3): 853–859.
Prediction of β-glucosidase and β-glucosaminidase activities, soil organic C, and amino sugar N in a diverse population of soils using near infrared reflectance spectroscopy . Dick, W.A., Thavamani, B., Conley, S., Blaisdell, R., Sengupta, A. (2012): Soil Biology and Biochemistry 56: 99-104.