• Brintha S, Rajesh S, Renuka R, Santhanakrishnan VP and Gnanam R.2017. Phytochemical analysis and bioactivity prediction of compounds in methanolic extracts of Curculigo orchioides Gaertn. Journal of Pharmacognosy and Phytochemistry. Vol. 6, Issue 4, Part C
  • R. Sivachandran, R. Gnanam, D. Sudhakar, J. Suresh, S. Ganesh Ram.2017. Influence of genotypes, stages of microspore, pre-treatments and media factors on induction of callus from anthers of cocoa (Theobroma cacao L.). Journal of Plantation Crops , Vol 45(3) , 162-172
  • R. Sivachandran, R. Gnanam , D. Sudhakar , J. Suresh , S. Ganesh Ram and R. Gangai Selvi.2017. Development of in vitro gynogenesis system in cocoa (Theobroma cacao L.) Chemical Science Review and Letters, Chem Sci Rev Lett , 6(24), 2169-2177
  • Veera Ranjani, G. Sreemol, Raveendran Muthurajan, Senthil Natesan, R. Gnanam, Rishi M. Kanna, S. Rajasekaran.2017.Proteomic Analysis of Degenerated Intervertebral Disc- identification of Biomarkers of Degenerative Disc Disease and Development of Proteome Database. Global Spine Journal.6(1)p
  • C. Partheeban, C.N. Chandrasekhar, P. Jeyakumar, R. Ravikesavan and R. Gnanam.2017. Effect of PEG Induced Drought Stress on Seed Germination and Seedling Characters of Maize (Zea mays L.) Genotypes. International Journal of Current Microbiology and Applied Sciences Volume 6(5) pp. 1095-1104
  • C. Partheeban, C.N. Chandrasekhar, P. Jeyakumar, R. Ravikesavan and R. Gnanam.2017. Early Stage Evaluation of Root Traits Associated with Drought Tolerance in Maize (Zea Mays L.) Genotypes. Chem Sci Rev Lett 2017, 6(22), 1301-1307


  • Keerthana Prabhakaran, Gnanam Ramasamy, Uma Doraisamy, Jayakanthan Mannu, K Rajamani, Jayadeepa Murugesan.2016. Polyketide natural products, acetogenins from Graviola (Annona muricata L), its biochemical, cytotoxic activity and various analyses through Computational and Bio-Programming Methods. Current Pharmaceutical Design, Volume 22(34), [5204 – 5210]


  • Pusadkar,P.P. ; Kokiladevi,E. ; Aishwarya,V ; Gnanam,R. ; Sudhakar,D. ; Balasubramanian, P.2015. Efficacy of growth hormone for callus induction in sesame (Sesamum indicum L.). Journal of Cell & Tissue Research. 2015, Vol. 15(2), p 5067-5071
  • Renuka, R.; Chandrasekar, A.; Gnanam, R.; Mohanalakshmi, M.2015.Tissue culture: a strategy to produce quality planting materials in coconut : Indian coconut journal; 2015, 57(11):23-24
  • Manigandan S, Vijayakumar RM, Uma D and Gnanam R. 2015. Preliminary phytochemical investigation, TLC and FT-IR analysis of Soursop (Anona muricata L.) leaves. The Ecoscan special issue 5: 213-222

  • R. Veera Ranjani, N. Senthil, M. Raveendran, S. Vellaikumar, R. Gnanam, M. K. Rishi and S. Rajasekaran.2014. Profiling of Metabolites from Human Intervertebral Disc through Gas Chromatography - Mass Spectrometry. Indian Journal of Science and Technology, Vol 7(8), 1228–1235
  • Ranjani R.Veera, Sreemol G., Raveendran M, Senthil N., Gnanam R, Rishi M.K., Rajasekaran S.2014. Intervertebral Disc Proteome Database in Human (TNAUPDB –Human Proteome) Current Trends in Biotechnology and Pharmacy. Vol 8(4)p. 423- 427
  • Johnson Beslin Joshi, Kondajji R Yathish, Amalraj John Joel, Kris K Kumar, Eas¬waran Kokiladevi, Loganathan Arul, Ramasamy Gnanam, Ponnusamy Balasubra¬manian, Duraialagaraja Sudhakar.2014. A high-throughput regeneration protocol for recalcitrant tropical Indian maize (Zea mays L) inbreds. Maydica ,59 p. 211-216
  • Saravanan, S. ; Srinivasan, T. ; Nagarajan, P. ; Senthil, N. ; Gnanam, R. ; Ponnuswami, V.2014. DNA fingerprinting in tomato (Lycopersicon esculentum Mill.) germplasm accessions using molecular markers .International Journal of Integrative Biology. (International Journal of Integrative Biology, 14(2):86-95

  • Jeno Paul, R. Gnanam, R. M. Jayadeepa and L. Arul. 2013. Anti-Cancer Activity on Graviola, Exciting Medicinal Plant Extract vs Various Cancer Cell Lines and a Detailed Computational Study on its Potent Anti-Cancerous Leads. Current Topics in Medicinal Chemistry. V.13:1666-1673
  • Supriyo Sen, V. Krishnasamy, S. Krishnaveni, C. Vijayalakshmi, K. Rajamani and R. Gnanam.2013. Evidence of Floral Reversion during In vitro Shoot Regeneration from Young Inflorescence of the Medicinal Geophyte Gloriosa superba L.. Plant Tissue Cult. & Biotech. 23(1): 115‐120

  • Janifer R. Xavier, Ramaswamy Gnanam, Muthiah P. Murugan, Anju Pappachan. 2012.Clonal propagation of Phyllanthus amarus: A Hepatoprotector. Pharmacognosy Magazine. Vol 8(29) , 78-82
  • Sivakumar, P. ; Rajesh, S. ; Gnanam, R. ; Manickam, A..2011. Effect of in vitro culture conditions on somaclonal variation in cowpea (Vigna unguiculata Walp.) using RAPD markers. Acta Biologica Hungarica. 62(1):34-44


  • Indramohan Singh, N. Kumaravadivel, R. Gnanam and S. Vellaikumar.2010.RP-HPLC analysis for camptothecin content in Nothapodytes nimmoniana, an endangered medicinal plant. Journal of Medicinal Plants Research Vol. 4(3), pp. 255-259, 4 February
  • P. Sivakumar, R. Gnanam, K. Ramakrishnan and A. Manickam.2010. Somatic embryogenesis and regeneration of Vigna radiata. Biologia Plantarum 54 (2): 245-251
  • Velmurugan, M.; Rajamani, K.; Paramaguru, P.; Gnanam, R.; Bapu, J. R. K.; Hemalatha, P. 2010. Impact of mutagenesis on physiological and biochemical parameters of coleus (Coleus forskohlii Briq.) Crop Research, 40(1/3):138-145
  • Hemalatha, P.; Vadivel, E.; Rajamani, K.; Gnanam, R.; Indurani, C.2010. Influence of growth regulators on cell suspension culture in Andrographis echioides (L.) Nees. South Indian Horticulture,, 58:160-162
  • Velmurugan, M.; Rajamani, K.; Paramaguru, P.; Gnanam, R.; Bapu, J. R. K. 2010.Micropropagation in medicinal coleus (Coleus forskohlii Briq.).South Indian Horticulture, 58:231-236
  • Velmurugan, M.; Rajamani, K.; Paramaguru, P.; Gnanam, R.; Bapu, J. R. K.2010. Effect of in vitro mutagenic treatments on callus culture of medicinal coleus (Coleus forskohlii Briq.) South Indian Horticulture, 58:38-41
  • Velmurugan, M.; Rajamani, K.; Paramaguru, P.; Gnanam, R.; Bapu, J. R. K.; Harisudan, C. Hemalatha, P.2010. In vitro mutation horticultural crops- A Review .Agricultural Reviews- Agricultural Research Communications Centre, India 31(1):63-67
  • Velmurugan,M. ; Rajamani,K. ; Paramaguru,P. ; Gnanam,R. ; Bapu,J.R.Kannan ; Davamani, V. ; Selvakumar, T.2010. Direct and Indirect Organogensis in Medicinal Coleus (Coleus forskohlii Briq.) - A Review: Agricultural Reviews 31(1):73-76

  • Indramohan Singh, N. Kumaravadivel, R. Gnanam, L. Arul and K. Rajamani. 2009. Factors influencing callus induction in the medicinal plant Nothapodytes nimmoniana (Grah.) Mabb Int. J. Agric. Environ & Biotech., Vol.2(No.1), 001- 10: March 2009 p.79-82
  • Ambika Binesh and Gnanam R.2009.Diosgenin Production From Callus, Suspension And Hairy Root Cultures Of Trigonella foenum-graecum. Advanced Biotech, Vol. VIII Issue 03. September.

  • S. Rajesh, S. Krishnaveni, D. Sudhakar, M.Raveendran,P. Sivakumar, R. Gnanam and A. Manickam. 2008. Agrobacterium-Mediated Transformation of indica Rice (Oryza sativa L.), IR64 with Mungbean LEA Protein Gene for Water-Stress Tolerance. American Journal of Plant Physiology 3(3): 101-110
  • Hemalatha, P.; Vadivel, E.; Rajamani, K.; Gnanam, R.2008. Studies on callus induction and in vitro production of secondary metabolite in Andrographis echioides (L.) Nees. South Indian Horticulture,56 (PART1/6):122-130
  • Hemalatha, P.; Vadivel, E.; Rajamani, K.; Gnanam, R.2008. 29. Influence of growth regulators on in vitro propagation of Andrographis echioides (L.) Nees. South Indian Horticulture,56 (PART1/6):131-138

  • D.Raghu,N.Senthil,T.Sarswathi,M.Raveendran,R.Gnanam,R.Venkatachalam,P.Shanmugasundaram and C.Mohan .2007.Morphological and simple sequence repeats (SSR) based finger printing od south Indian cassava germplasm. International Journal of Integrative Biology(IJIB),1(2):141-148
  • Ambika, K.S and R.Gnanam. 2007. Micropropagation in Gymnema sylvestre. Advanced Biotech, Vol. VI Issue 05. Novemberp.9-12
  • S.Mohammed Yaseen, Adithya, Ashwinkumar SudamKhobragade and R. Gnanam. 2007. Biomolecular analysis in Coleus forskohlii. Advanced Biotech, Vol. VI Issue 03. September, p.9-16
  • Anju pappachan, R.Gnanam and K.S.Ambika. 2007. Micropropagation in Phyllanthus amarus. Schum and Thonn. Advanced Biotech, Vol. V Issue 10 April, p.15-18

  • Priyadarshini, R.Gnanam, P.Sivakumar and Ashwinkumar. 2006. Tissue culture propagation in Stevia (Stevia rebaudiana (bertoni.)). Herbal Tech Industry, 2 :13-14

  • K. Ramakrishnan, R. Gnanam, P. Sivakumar and A. Manickam. 2005. In vitro somatic embryogenesis from cell suspension cultures of cowpea [Vigna unguiculata (L.) Walp]. Plant Cell Reports., 24: 449-461
  • K. Ramakrishnan, R. Gnanam, P. Sivakumar and A. Manickam. 2005. Developmental pattern formation of somatic embryos induced in cell suspension cultures of cowpea [Vigna unguiculata (L.) Walp]. Plant Cell Reports, 24: 501-506

  • Indumathi, K.; Kannan, M.; Jawaharlal, M.; Gnanam, R. 2004. Standardization of sterilants and explants for the in vitro propagation of Dendrobium hybrid Sonia-17. South Indian Horticulture,52(PART 1/6):232-238

  • Gnanam, R and M.Jeyapragasam. 2000. Anti oxidant defenses during heat stress in leaves of two varieties of Sorghum bicolor (L) Moench. Tropical Agricultural Research. Vol.12: p11-21
  • Gnanam,R and M.Jeyapragasam. 2000. Differential expression of chlorophyll flourescence on heat shock in Sorghum, Sorghum bicolor(L) Moench. Tropical Agricultural Research. Vol.12: 33-40

  • Gnanam.R, S.Kalaimamani and S.Sadasivam.1999. Direct Organogenesis in Vilvam (Aegle marmelos L.). Agro. India. May 99 P.16-18
  • Gnanam, R.S. Sadasivam and S.Sathiyamoorthy. 1999. Micropropagation of Banana from Rhizomic buds. Agro India. Nov. p.12-13

  • Ramaswamy, P., M.Balasubramanian, R.Gnanam and P.Rangasamy. 1990. CO.11 Avarai (Lablab purpureus var. typicus). A new short duration photo



  • Sivakumar P, Gnanam R, Kokiladevi E. 2009. Grain Legume Research, Volume 1, Tissue Culture, Biotechnology and Genetic Engineering, Bioscience Publications, India, p 177+ X, ISBN 978-81-906221-9-6


  • Sivakumar P, Gnanam R, Khawar D.Thangadurai. 2010. Grain Legume Research, Tissue Culture, Biotechnology and Genetic Engineering, Volume 2, Bioscience Publications, India, ISBN 978-81-906221-7-2.


Completed Projects Details:

S. No Project Name  Funding Agency  Date of Completion Budget
(Rs. in lakhs)
1 Micro propagation of Tamarind and pomegranate and field evaluation of banana plants 
  State Government

1998 - 2001


Endowment- Micro propagation of tamarind and pomegranate and field evaluation of micro propagated banana plants  (PI)
  State Government

2000 - 2002


Micro propagation of Paulownia and cost effective tissue culture production technology for banana   
State Government
2002 - 2004


Development of transgenic banana with increased shelf life

2003 - 2005


Development of repeatable protocols for induced androgenesis to induce gametoclonal variations for combating high priority problems in Tomato (Lycopersicon esculentum Mill).


2012 - 2016


Haploids Induction for Rapid Homozygosity to Accelerate Breeding Programs in Cocoa   Kraft foods / Mondelez International, U.K

2013 - 2018


Standardization of in vitro culture techniques through somatic embryogenesis for propagation of elite coconut cultivars   Coconut Development Board, Kochi

2014 - 2017