I. Peer reviewed

* indicates corresponding authorship


16. Topitzhofer, E., Lucas, H.M., Carlson, E.A., Chakrabarti, P., Sagili, R.R. (2021) Collection and Identification of Pollen from Honey Bee Colonies. Journal of Visualized Experiments Accepted In Production. (IF 1.325)

15. Hopkins, B.K., Chakrabarti, P., Lucas, H.M., Sagili, R.R. and Sheppard, W.S. (2020) Impacts of different winter storage conditions on the physiology of diutinus honey bees (Apis mellifera L.). Journal of Economic Entomology Accepted In Press. (IF 1.938)


14. Chakrabarti, P.* and Sagili, R.R.* (2020) Changes in Honey Bee Head Proteome in Response to Dietary 24-Methylenecholesterol. Insects 11(11): 743. (IF 2.220)


13. Milone, J.P.#, Chakrabarti, P.*, Sagili, R.R. and Tarpy, D.R. (2020) Colony-level pesticide exposure affects honey bee (Apis mellifera L.) royal jelly production and nutritional composition. Chemosphere. DOI: (# Equal first author contributions) (IF 5.778)


12. Chakrabarti, P.*, Carlson, E.A., Lucas, H.M., Melathopoulos, A.P., Sagili, R.R.* (2020) Field rates of Sivanto™ (flupyradifurone) and Transform® (sulfoxaflor) increase oxidative stress and induce apoptosis in honey bees (Apis mellifera L.). PLoS ONE 15(5): e0233033. (IF 2.776)


11. Chakrabarti, P.*, Lucas, H.M. and Sagili, R.R. (2020) Novel Insights into Dietary Phytosterol Utilization and Its Fate in Honey Bees (Apis mellifera L.). Molecules 25: 571. DOI: 10.3390/molecules25030571 (IF 3.060)


10.  Chakrabarti, P.*, Lucas, H.M. and Sagili, R.R. (2019) Evaluating effects of a critical micronutrient (24-methylenecholesterol) on honey bee physiology. Annals of the Entomological Society of America pp. 1-7. DOI: 10.1093/aesa/saz067/5661568.


Evaluating Effects of a Critical Micronutrient (24-Methylenecholesterol) on Honey Bee Physiology

Although poor nutrition is cited as one of the crucial factors in global pollinator decline, the requirements and role of several important nutrients (especially micronutrients) in honey bees are not well understood. Micronutrients, viz. phytosterols, play a physiologically vital role in insects as precursors of important molting hormones and building blocks of cellular membranes.

9.  Hooven, L.A., Chakrabarti, P., Harper, B.J., Sagili, R.R. and Harper, S.L. (2019) Potential Risk to Pollinators from Nanotechnology-Based Pesticides. Molecules 24: 4458. DOI: 10.3390/molecules24244458.


Potential Risk to Pollinators from Nanotechnology-Based Pesticides

The decline in populations of insect pollinators is a global concern. While multiple factors are implicated, there is uncertainty surrounding the contribution of certain groups of pesticides to losses in wild and managed bees. Nanotechnology-based pesticides (NBPs) are formulations based on multiple particle sizes and types.

8. Chakrabarti, P.*, Morre, J.T., Maier, C.S. and Sagili, R.R. (2019) The Omics Approach to Bee Nutritional Landscape. Metabolomics 15, 127.


The omics approach to bee nutritional landscape

Significant annual honey bee colony losses have been reported in the USA and across the world over the past years. Malnutrition is one among several causative factors for such declines. Optimal nutrition serves as the first line of defense against multiple stressors such as parasites/pathogens and pesticides.

7. Topitzhofer, E., Lucas, H.M., Chakrabarti, P., Breece, C., Bryant, V. and Sagili, RR. (2019) Horticulture Assessment of pollen diversity available to honey bees (Hymenoptera: Apidae) in major cropping systems during pollination in the western United States. Journal of Economic Entomology 1-9. DOI: 10.1093/jee/toz168.


6. Chakrabarti, P., Sarkar, S. and Basu, P. (2019) Pesticide induced visual abnormalities in Asian honey bees (Apis cerana L.) in intensive agricultural landscapes. Chemosphere 230, 51 – 58.


5. Sagili, R.R., Metz, B.N., Lucas, H.M., Chakrabarti, P. and Breece, C.R. (2018) Honey bees consider larval nutritional status rather than genetic relatedness when selecting larvae for emergency queen rearing. Scientific Reports 8, 7679. DOI: 10.1038/s41598-018-25976-7.


Honey bees consider larval nutritional status rather than genetic relatedness when selecting larvae for emergency queen rearing

In honey bees and many other social insects, production of queens is a vital task, as colony fitness is dependent on queens. The factors considered by honey bee workers in selecting larvae to rear new queens during emergency queen rearing are poorly understood. Identifying these parameters is critical, both in an evolutionary and apicultural context.


4. Chakrabarti, P., Sarkar, S. and Basu, P. (2018) Field Populations of Wild Apis cerana Honey Bees Exhibit Increased Genetic Diversity Under Pesticide Stress Along an Agricultural Intensification Gradient in Eastern India. Journal of Insect Science 18(3): 1 – 8.



3. Smith, B.M., Chakrabarti, P., Chatterjee, A., Chatterjee, S., Dey, U.K., Dicks, L.V., Giri, B., Laha, S., Majhi, R.K. and Basu, P. (2017) Collating and validating indigenous and local knowledge to apply multiple knowledge systems to an environmental challenge: A case-study of pollinators in India. Biological Conservation 211(A), 20 – 28.


2. Chakrabarti, P., Rana, S., Bandopadhyay, S., Naik, D.G., Sarkar, S. and Basu, P. (2015) Field populations of native Indian honey bees from pesticide intensive agricultural landscape show signs of impaired olfaction. Scientific Reports 5, 12504. DOI: 10.1038/srep12504.


1. Chakrabarti, P., Rana, S., Smith, B., Sarkar, S. and Basu, P. (2015) Pesticide induced oxidative stress in laboratory and field populations of native honey bees along intensive agricultural landscapes in two Eastern Indian states. Apidologie 46(1), 107 – 129.


II. Conference proceedings and Book chapters

9. Chakrabarti, P. and Sagili, R.R. (2020) 79th Annual Pacific Northwest Insect Management Conference, Section II: Bees and Pollinators, 2020 Research Reports.

8. Chakrabarti, P.* (2019) Multifactorial Declines In Global Insect Pollinator Populations – Case Studies In Honey Bees. In: A knowledge based volume on Environmental Issues: Approaches and Practices, Syamaprasad College Publication, Kolkata. Volume 1, pp. 20-31.

7. Chakrabarti, P.* and Sagili, R.R. (2018) 78th Annual Pacific Northwest Insect Management Conference, Section II: Bees and Pollinators, 2019 Research Reports.

6. Chakrabarti, P.* and Sagili, R.R. (2018) Sterol nutritional physiology in honey bees. Proceedings of the 2018 American Bee Research Conference, Bee World, April 17th 2018.

5. Chakrabarti, P.* and Sagili, R.R. (2018) 77th Annual Pacific Northwest Insect Management Conference, Section II: Bees and Pollinators, 2018 Research Reports.

4. Chakrabarti, P*., Rana, S., Bandopadhyay, S., Naik, D.G., Sarkar, S. and Basu, P. (2018) 77th Annual Pacific Northwest Insect Management Conference, Section II: Bees and Pollinators, 2018 Research Reports.

3. Basu, P., Bhattacharya, R. and Chakrabarti, P. (2017) Pollination crises in the agro-ecosystems of the tropics: challenges and way forward. In G. Poyyamoli (Ed) Agroecology, ecosystems and sustainability in the tropics. Studera Press, New Delhi.


2. Basu, P. and Chakrabarti, P. (2015) Sub lethal effects of pesticides on pollinators with special focus on honey bees. In P.A. Sinu and K.R. Shivanna (Eds) Mutualistic interaction between flowering plants and animals. Manipal University Press, Manipal. ISBN: 978-93-82460-26-8.

1. Basu, P. and Chakrabarti, P. (2015) Pesticides and the Muted Buzz of the Bees. In Biswas, S., Mitra, M.K. and Bar, R. (Eds) Environmental impacts on health: towards a better future. Kolkata Readers Service, Kolkata. ISBN: 9789382623511.

III. Extension publications

10. Topitzhofer, E., Hedstrom, C., Chakrabarti, P., Melathopoulos, A.P., Rondon, S.I., Langelloto-Rhodaback, G.A. and Sagili, R.R. (2020) Asian Giant Hornet: A potential threat to honeybee colonies in Oregon. EM9297, published September, 2020.

9. Chakrabarti, P. (2019) Phytosterols – the understudied micronutrients in bee nutrition. The Bee Line by the Oregon State Beekeepers’ Association August 2019 issue.

8. Chakrabarti, P. (2019) Phytosterols – the understudied micronutrients in bee nutrition. WAS Journal by the Western Apicultural Society August 2019 issue.

7. Chakrabarti, P. (2019) A review of the sublethal impacts of pesticides on native Indian pollinators – case studies in honey bees. Sujalam Safalam May 8th, 2019.

6. Chakrabarti, P. (2019) OSU Pollination Podcast February 2019.

5. Chakrabarti, P. (2017) Article entitled “The Many Faces Of Conservation” in Wildlife, October 2017


4. Chakrabarti, P. (2016) Article entitled “Food security in agriculture” in Food Safety, May 2016


3. Chakrabarti, P. (2014) Article entitled “The vanishing honey bees” in – an online magazine

Link: June 2014.

2. Chakrabarti, P. (2013) Article entitled “Story of the vanishing pollinators – honey bees” in Sujalam Sufalam, Issue number 2, April – June, 2013.

1. Chakrabarti, P. (2013) Article entitled “The invisible world” in Sujalam Sufalam, edition Wildlife Conservation. Issue number 3, October – December, 2013.

IV. In review / in preparation

Stay tuned for more research updates!

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Ph.D., Zoology

Priyadashini Chakrabarti