भा.कृ.अ.प. - भारतीय कृषि अनुसंधान संस्थान | ICAR-Indian Agricultural Research Institute

Microbiology      (20 scientists)

Dr B. Ramakrishnan


Field of Specialisation : Anaerobic Microbiology

Dr B. Ramakrishnan

Principal Scientist

M.Sc. : G B Pant University of Agriculture & Technology, Pant Nagar

Ph.D : Indian Agricultural Research Institute, New Delhi

Google Scholar

PG School, Faculty Disciplines : Microbiology

No. of Students Guided : -    M.Sc :   3 (IARI) & 18 (Utkal University & OUAT))

   Ph.D :   3 (Utkal University)

Top 10 Publications having NAAS rating 6 and above with first or corresponding author only

  1. Ramakrishnan B, Venkateswarlu K, Sethunathan N and Megharaj M (2019) Local applications but global implications: Can pesticides drive microorganisms to develop antimicrobial resistance? Science of the Total Environment 654: 177-189. (NAAS-S019; 11.59)
  2. Ramakrishnan B, Megharaj M, Venkateswarlu K, Sethunathan N, Naidu R (2011) Mixtures of Environmental Pollutants: Effects on microorganisms and their activities in soils. Reviews of Environmental Contamination and Toxicology 211: 63-120. (NAAS-R055;11.46)
  3. Ramakrishnan B, Megharaj M, Venkateswarlu K, Naidu R, Sethunathan N (2010) The impacts of environmental pollutants on microalgae and cyanobacteria. Critical Reviews in Environmental Science and Technology 40: 699-821. (NAAS-C149;11.98)
  4. Nayak P, Patel D, Ramakrishnan B*, Mishra AK, Samantaray RN (2009) Long-term application effects of chemical fertilizer and compost on soil carbon under intensive rice-rice cultivation. Nutrient Cycling in Agroecosystems 83:259-269. (NAAS-N070;8.85)
  5. Rath AK, Ramakrishnan B*, Rao VR, Sethunathan N (2005) Effects of rice-straw and phosphorus application on production and emission of methane from tropical rice soil. Journal of Plant Nutrition and Soil Science 168: 248-254. (NAAS-J426; 8.06)
  6. Ramakrishnan B, Leueders T, Dunfield PF, Conrad R, Friedrich MW (2001) Archaeal community structures in rice soils from different geographical regions before and after initiation of methane production. FEMS Microbiology Ecology 37: 175-186. (NAAS-F004;10.10)
  7. Kumaraswamy S, Ramakrishnan B*, Sethunathan N (2001) Methane production and oxidation in an anoxic rice soil as influenced by inorganic redox species. Journal of Environmental Quality 30: 2195-2201. (NAAS-J196; 8.58)
  8. Ramakrishnan B, Leueders T, Conrad R, Friedrich M (2000) Effect of soil aggregate size on methanogenesis and archaeal community structure in anoxic paddy soil. FEMS Microbiology Ecology 32: 261-270. (NAAS-F004;10.10)
  9. Kumaraswamy S, Rath, AK, Ramakrishnan B*, Sethunathan N (2000) Wetland rice soils as sources and sinks of methane: a review and prospects for research. Biology and Fertility of Soils 31: 449-461. (NAAS-B092;10.83)
  10. Rath AK, Swain B, Ramakrishnan B*, Panda D, Adhya TK, Rao VR and Sethunathan N (1999) Influence of fertilizer management and water regime on methane emission from rice fields. Agriculture, Ecosystems and Environment 76: 99-107. (NAAS-A106;9.95)

Patent / Technologies / Methodologies / System etc. (Upto Five) :

  1. Applied molecular methods to describe the diversity and functions of difficult to culture archaeal- and other microbiome members in agricultural ecosystems
  1. Documented the impact of pesticides and pollutants, though they are of miniscule quantities in soils, on microbial functions, including those of anaerobic organisms as an important component of One Health
  1. Mitigation options for methane emission from tropical rice soils and developed technologies based on the mechanistic understandings
  1. First report on the global distribution of methanogenic archaeal communities including the members of unculturable rice clusters in rice soils of different geographical origin by employing the molecular methods
  1. First report on methane production from alluvial and acid sulfate (Pokkali) soils of India

Awards / Recognitions / Fellowship (Upto Five) :

  1. BOYSCAST Fellow (DST), Max Planck Institut fr Terrestrische Mikrobiologie, Karl von Frisch Strae, D 35043, Marburg/Lahn, Germany (1999-2000)
  1. Fulbright Fellow, University of Massachusetts, Amherst, MA 01002, USA (2007)
  1. Endeavour Research Fellow, Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Adelaide, Australia (2010-11)
  1. Faculty invitee of the Office of the International Education, University of Georgia, Athens, USA (2016)
  1. Member, Expert Committee, Ministry of New & Renewable Energy, Government of India (2020)