R. Samanta

R. Samanta
R. Samanta
Life Sciences



  1. Bachelor’s Degree : B.Sc. (Botany) Hons., Kalyani University
  2. Master’s Degree : M.Sc. (Botany), Kalyani University
  3. Ph.D.: Ph.D. (Botany), Kalyani University

Professional Experience:

  • Lecturer, Department of Life Sciences, Dibrugarh University (30-04-1985 to 1994)
  • Reader, Department of Life Sciences, Dibrugarh University (From 1994 to 2003)
  • Professor, Department of Life Sciences, Dibrugarh University (Since 2003)

Areas of Interest/ Specialization:

  • Microbiology, Molecular Biology

Ph.D Scholars:

Sl. No.




(On-going /Completed)


Tarpana Bhagawati

Studies on Microbes Associated with the Roots of Shade Trees used in Tea Gardens of Undivided Dibrugarh District, Assam with Special Reference to Phosphate Solubilization



Aparupa Borgohain

Study on Diversity of Flacherie Causing Bacterial Pathogens of Muga Silkworm, Antheraea assamensis Helfer with special reference to Host Plants



Gunajit Goswami

A study on the Transcriptome profile of Bacillus megaterium during acidic stress



Bobita Payeng

Studies on the seasonal variation of microbial population and selected trace elements in tea growing soils of Jorhat district of Assam



  1. Pandey, P.K., Singh, S., Singh, A.K. and Samanta, R. (2016) Inside the plant: Bacterial endophytes and abiotic stress alleviation. Journal of Applied and Natural Science 8 (4): 1899-1904.
  2. Bhagawati, T and Samanta, R. (2015). Phosphatases of Soils and Microbes of Tea Gardens of Dibrugarh District, Assam. 5(5)19-23.
  3. Pandey, P.K., Samanta, R. and Yadav, R.N.S. (2015). Plant Beneficial Endophytic Bacteria from the Ethnomedicinal Mussaenda roxburghii (Akshap) of Eastern Himalayan Province, India. Advances in Biology.
  4. Tamuli, P. Boruah, P. and Samanta, R. (2014). Biochemical changes in agarwood tree (Aquilaria malaccensis Lamk.) during pathogenesis. 13(2).
  5. Nath, R. and Samanta, R. (2012) Soil pH, microbial population, nitrate reductase and alkaline phosphatase activities of different environment of Dibrugarh district, Assam. Advances in Applied Science Research, 3 (3):1772-1775.
  6. Devi,B., Unni,B.G.,Wann,S.B. and Samanta,R.. (2012) Immobilization of partially purified alpha amylase enzyme produced by a soil borne Bacillus sp. Advances in Applied Science Research . 3 ( 5) :2739-2744.
  7. Devi,B.,Unni,B.G.,Wann,S.B. and Samanta,R. (2012) RAPD based molecular diversity study of amylase producing bacterial strains isolated from the soil of Dibrugarh district of Assam. Bull. Life Sci.,Vol XVIII, 82-90.
  8. Devi,B.,Dowerah,P.,Unni,B.G.,Wann,S.B.,Singh,I.M. and Samanta ,R. (2012) Characterization of selected alpha-amylase producing bacterial strains isolated from soil samples of alluvial plains of Southern Brahmaputra Corridor of Assam. African Journal of Microbiology Research   5 (25) :5335-5343.
  9. Phukan,R.,Samanta,R. and Barthakur,B.K. (2011) Phosphatase activity of Aspergillus niger:A native tea rhizosphere isolate. .Sci. and Culture  77 ( 7-10) :403-405.
  10. Samanta, R. (2011) New generation sequencing methods. In Application of Bioinformatics and Biotechnology Tools in Teaching and Research. (Edited by Prof. R.N.S.Yadav) Centre for studies in Biotechnology, Dibrugarh University. pp 12-23.
  11. Samanta, R. (2010) microarray Technology – its uses in Biotechnology and Bioinformatics. In Biotechnology and Bioinformatics Tools in Teaching and Research. (Edited by Prof. R.N.S.Yadav) Centre for studies in Biotechnology, Dibrugarh University. pp 23-29.
  12. Samanta, R. (2009) Next generation DNA sequencing. In Bioinformatics-application in biological Sciences. (Edited by Prof. R.N.S.Yadav) Centre for studies in Biotechnology, Dibrugarh University. pp 12-23.
  13. Gogoi,M.,Saikia,L.R. Samanta,R. (2008) An assessment of phytodiversity of the Dibrugarh University Campus with reference to the soil characteristics .In Environmental issues in North East India:Past,Present and Challenges ahead (10th-11th May,2008)pp 61-62.
  14. Tamuli, P.,Baruah,P. and Samanta, R.(2008) Enzyme activities in agarwood (Aquillaria malaccensis Lamk.) stem under pathogenesis. Journal of Spice and Aromatic Crops .17(3):240-243 (2008)
  15. Phukan , Rakhi,Samanta,R. and Barthakur,B.K.( 2004)Survey of weed flora in the  tea plantation of North East India as alternate host of Arbuscular mycorrizal fungi . Two and a Bud 51 :40-44 (2005)
  16. Tamuli,P.,Boruah,P.and Samanta, R. (2004) Biochemical changes in agarwood tree ( Aquilaria malaccensisLamk. ) during pathogenesis. Journal of Spices and aromatic Crops, vol 13 (2) :87-91.
  17. Gohain Baruah,S andSamanta,R.(2002) Lipase activity of petroleum oil utilizing and nitrogen fixing microorganisms. Bull. Life Sci. 10 :81-90 ( ISSN 0972-5746)
  18. Samanta, R.and Gohain Baruah, S. (2001). Biocontrol of petroleum pollution by microorganisms and production of Single cell protein. In “Harnesing Science and Technology for Health for all with special reference to North East India”, 2001. pp. 110-121.
  19. Tamuli, P., Boruah, P., Nath, S. C. and Samanta, R. (2000). Fungi from Diseased agarwood tree (Aquilaria agallocha Roxb) : Two New records. Advances in Forestry Research in India. Vol. XXII, 182-187.
  20. Tamuli, P., Bourah, P., Nath, S. C., Deka Bhuyan, P. and Samanta, R. (2000). Mycofloral study on rhizosphere of Aquilaria agallocha Roxb. In : Annual technical Session of Assam Science Society of Gauhati University, 23rd Feb. 2000, pp. 196-199.
  21. Kumari, B., Samanta, R. and Bora, T. C. (2000). Formation and applications of bacterial biofilm for degradation of cypermethrin. J. Environment and Pollution 7(2), 155-159.
  22. Choudhury, M. and Samanta, R. (2000). Effect of dimethoate and endosulfon on the growth of six Rhizobiumisolated from the shade trees of tea garden. In : Proc. Annual Technical Session of Assam Science Society. pp. 156-162.
  23. Gohain Boruah, S. and Samanta, R. (1999). Nitrate reductase activity of petroleum oil utilizing and N2-fixing microorganisms. Bull Life Sci.           9, 45-54.
  24. Choudhury, M. and Samanta, R. (1998). Effect of endosulfan on alkaline and acid phosphatases activity of nitrogen fixing bacteria. National Seminar on held at Sibsagar College, (7th and 8th Nov.).
  25. Choudhury, M. and Samanta, R. (1998). Growth and alanine aminotransferase activity of Rhizobiuminhabiting in the root of Adenanthera sp of shade trees in tea garden. Bull Life Sci. 8, 47-52.
  26. Samanta, R., Nandi, A. N. and Sen, S. P. (1997). N2-fixation on the leaf surfaces of plants under different ecological conditions. Journal of Assam Science Society. 39(1), 57-64.
  27. Samanta, R.and Gohain Borua, S. (1996). Dinitrogen fixation by diesel utilizing bacteria. Bull. Life Sciences.6, 17-24.
  28. Samanta, R.(1991). Nitrogen fixation by psendomonads. Bull. Life Sciences.      1, 19-26.
  29. Samanta, R.and Pal, D. (1990). The nature of the beneficial effects of associative symbiosis between N2-fixing microorganisms and plant leaf surface : The leaching of metabolites and electrolytes from leaves and their utilization by the diazotrophs. InProc. Natt. Symp. on Plant Sciences in Nineties, Kalyani. pp. 403-415.
  30. Samanta, R., Misra, R. K., Som Choudhury, M. and Sen, S. P. (1989). Associative Symbiosis and nitrogen nutrition of jute plants : 2. The utility of N2-fixing bacteria on the leaf surface. Jute Development Journal,IX(2), 1-8.
  31. Samanta, R., Pal, D. and Sen, S. P. (1989). Production of Hydrolases by           N2-fixing Microorganisms.Biochemie and Physiologie der Pflanzen185, 75-81.
  32. Sen, S. P., Ganguly, S., Pal, D., Samanta, R., Som Choudhury, M. and Sen, M. (1989). Associative symbiosis of rice plants with heterotrophic diazotrophs. International Symposium and Workshop on “Biological Nitrogen Fixation Associated with Rice Production”. Dec. 28, 1988 to Jan. 1, 1989. Central Rice Research Institute, Cuttack, India.
  33. Samanta, R.and Sen, S. P. (1988). Nitrogen fixation by Klebsiella rubiacearum. Science and Culture54, 92-94.
  34. Samanta, R.(1988). Improvement of efficacy of associative symbiosis by mutagenic treatments. In : Biofertilizers : Potentialities and Problems (Edited by S. P. Sen and P. Palit). Pp. 227-235. Naya Prakash, Calcutta.
  35. Samanta, R., Dutta, A. K. and Sen, S. P. (1986). The utilization of leaf wax by N2-fixing microorganisms on the leaf surface. J. Agric. Sci. (Cambridge). 107, 681-685.
  36. Samanta, R.and Sen, S. P. (1986). Further observations on the utility of N2-fixing microorganisms in the phyllosphere of cereals. J. Agric. Sci. (Cambridge), 107, 673-680.
  37. Samanta, R.(1986). Biofertilizers in the phyllosphere for the nitrogen nutrition of crop plants. Seminar on “Scope and dimensions of Life Sciences”.       23-24 Sept., 1986. Dibrugarh University.
  38. Prasad, A. B., Samanta, R., Viswakarma, M. L. and Vaishampayan, A. (1986). Biological effects of a mercury fungicide on a N2-fixing blue green alga Nostoc muscorum : Isolation and preliminary characterization of Hg-resistant mutant. New Phytol102, 45-49.
  39. Sen, S. P., Maiti, T., Pal, D., Samanta, R. K., Sen, M. and Som Choudhury, M. (1985). Dinitrogen fixation in the phylloplane and its agricultural and ecological implication. In : Frontiers in applied Microbiology (K. G. Mukerji, N. C. Pathak and V. P. Singh, editors). Print House, Lucknow, Vol. 1, pp. 294-314.
  40. Pal, D., Samanta, R. K., Sengupta, B. and Sen, S. P. (1983). Nitrogen fixation in the phyllosphere of jute plants. Proc. Natl. 70th Ind. Sci. Cong. Part IV.
  41. Sengupta, B., Nandi, A. S., Samanta, R. K., Pal, D., Sengupta, D. N. and Sen, S. P. (1981). N2-fixation in the phylosphere of tropical plants : Occurrence of phyllosphere N2-fixing microorganisms in Eastern India and their utility for the growth and nitrogen nutrition of host plants. Ann. Bot48, 705-716.
  42. Sen, S. P., Sengupta, B., Samanta, R. K., Pal, D. and Sengupta, D. N. (1980). Bio-degradation, Biogeochemical cycles and the conservation of essential elements. Natl. Symp. on Biological transformation of nutrients in soils. Dec. 19-20, Calcutta.

Upcoming Events

News & Events