Dr. Rathinasamy Subashkumar
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Dr. Rathinasamy Subashkumar

Associate Professor and Head
Sri Ramakrishna College of Arts and Science, India

Highest Degree
PostDoc. in Environmental Science from Lille University of Science and Technology, France

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Dr. R. Subashkumar, Associate Professor of Biotechnology at Sri Ramakrishna College of Arts and Science (Autonomous), Affiliated to Bharathiar University, Coimbatore, India. He has successfully completed a major research project entitled, “Synthesis and characterization of hydroxyapatite (Hap) by Serratiamarcescens MTCC 4822 and its efficiency on human bone implantation,” funded by UGC, New Delhi. A total of 48 papers have been published in peer reviewed journals, and four books have also been published with ISBNs. Research findings are also published as chapters in reputed books chapters in six books). He has been awarded the Best Faculty Award in Bioscience, hosted by Nehru Group of Institutions, Coimbatore, Tamil Nadu India.

Area of Interest:

Environmental Biology

Research Publications in Numbers


Selected Publications

  1. Subashkumar, R., M. Johny, G. Nandhagopal and N. Srinath, 2019. Microbial machinery based synthesis of nanoparticulate hydroxyapatite using Serratia marcescens and its characterization for human bone implant. Afr. J. Biotechnol., Vol. 19. .
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  2. Sathiyavimal, S., S. Vasantharaj, F. LewisOscar, A. Pugazhendhi and R. Subashkumar, 2019. Biosynthesis and characterization of hydroxyapatite and its composite (hydroxyapatite-gelatin-chitosan-fibrin-bone ash) for bone tissue engineering applications. Int. J. Biol. Macromol., 129: 844-852.
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  3. Natarajan, K., R. Subashkumar and J. Rathinamala, 2018. Biosynthesis and medical applications of polyhydroxybutyrate, a bioplastics from renewable resources. Int. J. Res. Anal. Rev., 5: 56-60.
  4. Chitra A., S.S. Shivekar, B. Usharani, V.R.C. Kapalamurthy, A. Sakkaravarthy, R. Subashkumar and M. Muthaiah, 2018. Prevalence of mutations in genes associated with isoniazid resistance in Mycobacterium tuberculosis isolates from re-treated smear-positive pulmonary tuberculosis patients: A meta-analysis. J. Glob Antimicrob. Resist., 14: 253-259.
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  5. Subashkumar, R., 2017. Prevalence of multiple antibiotic resistant and haemolysin producing bacteria in marketed fish samples. Kong. Res. J., 4: 94-97.
  6. Sathiyavimal, S. and R. Subashkumar, 2017. Biosynthesis, characterization and antibacterial activity of hydroxyapatite. Int J. Biosci. Nanosci., 4: 32-37.
  7. Natarajan, K., R. Subashkumar, M. Venugopal and J. Rathinamala, 2017. Biosynthesis of poly-hydroxybutyrate and distribution of phbC gene in Lactobacillus plantarum. Int. J. Adv. Res., 5: 1847-1855.
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  8. Natarajan, K. and R. Subashkumar, 2017. Incidence of multi drug resistance and diversity of TEM-1 beta lactamase in gram negative bacteria isolated from clinical and environmental sample. Int. J. Appl. Sci. Biotechnol., 5: 302-308.
  9. Gayathri, N. and R. Subashkumar, 2017. Phenotypic and genotypic characterization of Serratia marcescens from clinical and environmental sources. Int. J. Pharmacogn. Phytochem. Res., 9: 1392-1397.
  10. Gayathri, N. and R. Subashkumar, 2016. Effect of environmental factors on biofilm formation by Serratia marcescens isolates. Int. J. Rec. Adv. Multi. Res., 3: 1601-1604.
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  11. Esmaeel, Q., M. Chevalier, G. Chataigne, R. Subashkumar, P. Jacques and V. Leclere, 2016. Nonribosomal peptide synthetase with a unique iterative-alternative-optional mechanism catalyzes amonabactin synthesis in Aeromonas. Applied Microbiol. Biotechnol., 100: 8453-8463.
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  12. Venugopal, M., P. Iyappan and R. Subashkumar, 2015. In vitro propagation and antibacterial activity of Ocimum basilicum linn. Int. J. Res. Sci., 2: 23-27.
  13. Johny, M., S. Ramapriya, M. Venugopal, A. Sivaranjini and R. Subashkumar, 2015. Distribution of haemolytic thiobacilli in sewage samples. Kong. Res. J., 2: 121-124.
  14. Vignesh, R., M. Venugopal and R. Subashkumar, 2014. Preparation and standardization of biocompatible bacterial consortium for the enhanced growth of crop plants. Kongnadu Res. J., 1: 111-116.
  15. Subashkumar, R., T. Thayumanavan and P. Lakshmanaerumalsamy, 2014. RAPD and ERIC - PCR typing of virulent Aeromonas hydrophila isolated from children with acute diarrhea. J. Cell Mol. Biol., 12: 47-53.
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  16. Rajeswari, K., R. Subashkumar and K. Vijayaraman, 2014. Degradation of textile dyes by isolated Lysinibacillus sphaericus strain RSV-1 and Stenotrophomonas maltophilia strain RSV-2 and toxicity assessment of degraded product. J. Environ. Anal. Toxicol., Vol, 4 10.4172/2161-0525.1000222.
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  17. Kanimozhi, M., M. Johny, N. Gayathri and R. Subashkumar, 2014. Optimization and Production of α -Amylase from halophilic Bacillus species isolated from mangrove soil sources. J. Applied Environ. Microbiol., 2: 70-73.
  18. John, M. and R. Subashkumar, 2014. Phenotypic and genotypic discrimination of multifactorial virulent Aeromonas hydrophila in clinical and environmental samples. Eur. J. Acad. Essays, 1: 10-14.
  19. Jayarajan, D., R. Subashkumar, F. Sylviamary, S. Silvan and E. K. Elumalai, 2014. Dissemination of serum resistant multiple antibiotic resistant Acinetobacter sp. in clinical settings-a New Threat. Eur. J. Acad. Essays, 1: 51-57.
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  20. Gayathri, N., R. Parvatham, B.R. Lakshmi, M.S. Murugan and R. Subashkumar, 2014. Non-invasive genetic diagnosis of duchenne muscular dystrophy probands using salivary DNA. J. Sci. Innovative Res., 3: 552-557.
  21. Deepthi, V., B. Raksha, S. Pooja, R. Subashkumar, G. Vivekanandhan, R. Siva and S. Babu, 2014. Differential response of cultivated rice to pathogen challenge and abiotic stresses with reference to cationic peroxidase. Arch. Phytopathol. Plant Prot., 47: 1390-1399.
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  22. Subashkumar, R., M. Sureshkumar, S. Babu and T. Thayumanavan, 2013. Antibacterial effect of crude aqueous extract of Piper betle L. against pathogenic bacteria. Int. J. Res. Pharma. Biomed. Sci., 4: 42-46.
  23. Rajeswari, K., R. Subashkumar and K. Vijayaraman, 2013. Physico chemical parameters of effluents collected from tirupur textile dyeing and CETP and analysis of Heterotropic bacterial population. J. Microbiol. Biotechnol. Res., 3: 37-41.
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  24. Rajeswari, K., R. Subashkumar and K. Vijayaraman, 2013. Decolorization and degradation of textile dyes by Stenotrophomonas maltophilia RSV-2. Int. J. Environ. Bioremed. Biodegrad., 1: 60-65.
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  25. Muniandi, C., K.R. Mani, L. Premkumar and R. Subashkumar, 2013. Standardization of process for increased production of pure and potent tetanus toxin. J. Microbiol. Inf. Dis., 3: 133-140.
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  26. Muniandi, C., K.R. Mani and R. Subashkumar, 2013. Large scale recovery of tetanus toxin and toxoid from fermentation broth by microporous tangential flow filtration. Int. J. Biotechnol. Mol. Biol. Res., 4: 28-37.
  27. Jayarajan, D., R. Subashkumar, F. Sylviamary, S. Silvan and E.K. Elumalai, 2013. Prevalence of slime producing multiple antibiotic Resistant and serum susceptible Acinetobacter aumani in human sources. World J. Pharm. Pharm. Sci., 3: 1840-1854.
  28. Bawankar, R., V.C. Deepti, P. Singh, R. Subashkumar and S. Babu, 2013. Biochemical analysis and evaluation of bioactive potentials of Aloe vera phytogel extract. Phytother. Res., 27: 864-868.
  29. Babu, S., T. Thayumanavan, R. Subashkumar, S.V. Satish and G. Vivekanandhan, 2013. Increasing Peril of Pathogenic Aspergillus in indoor Air. J. Pure Appl. Microbiol., 7: 577-581.
  30. Subashkumar, R., T. Thayumanavan, G. Vivekanandhan and P. Lakshmanaperumalsamy, 2012. Etiology of childrens diarrhea in Southern India: Associated pathogens and usual isolates. Afr. J. Microbiol. Res., 6: 2808-2815.
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  31. Raksha, B., P. Singh, R. Subashkumar, G. Vivekanandhan, T. Thayumanvan and S. Babu, 2012. Comparative analysis and partial functional annotation of phytosterol desaturse gene in plants of different botanical families. Res. Plant Biol., 2: 41-49.
  32. Rajeswari, K., R. Subashkumar and K. Vijayaraman, 2011. Biodegradation of mixed textile dyes by bacterial strains isolated from dyewaste effluent. Res. J. Environ. Toxicol., 5: 97-107.
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  33. Amaresh, P., S. Babu, G. Vivekanandhan, R. Subashkumar and T. Thayumanavan, 2011. Development of a metagenomic DNA extraction procedure and PCR detection of human enteric bacteria in vegetable salad tissues. Res. Biotechnol., 2: 11-19.
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  34. Seethalakshmi, I., R. Subashkumar and P. Saminathan, 2008. Distribution of putative virulence genes in Aeromonas hydrophila and Aeromonas salmonicida isolated from marketed fish samples. J. Fish. Aquatic Sci., 3: 145-151.
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  35. Thayumanavan, T., R. Subashkumar, G. Vivekanandhan, K. Savithamani and P. Lakshmanaperumalsamy, 2007. Haemolytic and Multidrug resistant Aeromonas hydrophila Cross contamination in retail seafood outlets of Coimbatore, South India. Am. J. Food Technol., 2: 87-94.
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  36. Subashkumar, R., G. Vivekanandhan, S.S.R. Suresh, K. Natarajaseenivasan, T. Thayumanavan and P. Lakshmanaperumalsamy, 2007. Typing of Aeromonas hydrophilaof fish and human diarrhoeal origin by outer membrane proteins and lipopolysaccharides. Indian J. Microbiol., 47: 46-50.
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  37. Sasikumar, J.M., T. Thayumanavan, R. Subashkumar, K. Janardhanan and P. Lakshmanaperumalsamy, 2007. Antimicrobial activity of some ethnomedicinal plants from the Nilgiris, Tamil Nadu, India. Nat. Product Radiance, 6: 34-39.
  38. Prabhakaran, R., S.V. Renukadevi, R. Karvembu, R. Huang and J. Mautz et al., 2007. Structural and biological studies of mononuclear palladium (II) complexes containing N-substituted thiosemicarbazones. Eur. J. Med. Chem., 43: 268-273.
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  39. Subashkumar, R., T. Thayumanavan, G. Vivekanandhan and P. Lakshmanaperumalsamy, 2006. Occurrence of Aeromonas hydrophila in acute gasteroenteritis among children. Indian J. Med. Res., 123: 61-66.
  40. Subashkumar, R., T. Thayumanavan, C. Thilagavathy, G. Vivekanandhan, K. Savithamani and P. Lakshmanaperumalsamy, 2006. Typing of haemolytic and antibiotic resistant Aeromonas hydrophila isolated from raw milk of coimbatore, South India. Int. J. Dairy Sci., 1: 70-83.
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  41. Subashkumar, R., T. Thayumanavan, G. Vivekanandhan, K. Savithamani and P. Lakshmanaperumalsamy, 2006. Occurrence of multiple antibiotic resistances among children diarrhoeal isolates of Aeromonas hydrophila. Res. J. Microbiol., 2: 58-65.
  42. Seethalakshmi, I., S. Jayalakshmi, R. Subashkumar, P. Saminathan and K. Rajagopal, 2006. Occurrence of Multiple Antibiotic Resistant Aeromonas hydrophila Isolated from Marketed Fish and Shrimp Samples. Indian Applied J. Microbiol., 6: 79-87.
  43. Lakshmanaperumalsamy, P., T. Thayumanavan, R. Subashkumar, G. Vivekanandhan, K. Savithamani and M. Thangavel, 2005. Distribution and Molecular Typing of Aeromonas hydrophila Isolated from Various Sources. In: Microbial Diversity: Current Perspectives and Potential Applications, Sathyanarayana, T. and B.N. Johri (Eds.). IK International Pvt. Ltd., New Delhi, India, pp: 1025-1036.
  44. Dhanya, D., S. Tamilarasi, R. Subashkumar and P. Lakshmanaperumalsamy, 2005. Impact of dyeing industrial effluent on the ground water quality and soil microorganisms in Tirupur. Indian J. Environ. Prot., 25: 495-502.
  45. Lakshmanaperumalsamy, P., T. Thayumanavan and R. Subashkumar, 2004. Aeromonas hydrophila A Re-Emerging Pathogen. In: Marine Microbiology Facets and Opportunities, Ramaiah, N. (Ed.). National Institute of Oceanography, Goa, India, pp: 157-164.
  46. Thayumanavan, T., G. Vivekanandhan, K. Savithamani, R. Subashkumar and P. Lakshmanaperumalsamy, 2003. Incidence of haemolysin-positive and drug-resistant Aeromonas hydrophila in freshly caught finfish and prawn collected from major commercial fishes of coastal South India. FEMS Immunol. Med. Microbiol., 36: 41-45.
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