Prof R Rengasamy

Professor & Director
Centre for Advanced Studies in Botany
University of Madras
Guindy Campus, Chennai – 600 025
Tamil Nadu, India.

E. mail : profrrengasamy@yahoo.com
Mobile: 91-9176295052
Phone: 91-44-22350401

National & International Publications:

  1. N.Anand and R.Rengasamy. Taxonomic studies on the genus Aulosira Krichner. Proc. Indian Acad. Sci. 1978. 75-81.
  2. N.Anand and R.Rengasamy. Differentiation of heterocysts and spores in Cylindrospermum. Curr. Sci. 1982. 51: 942-944.
  3. R.Rengasamy. Studies on Labophora nigrescens J. Agardh (Dictyotales). Seaweed Res. Utiln. 1985. 29-33.
  4. R.Rengasamy and M.Prema. Studies on Gelidiopsis variabilis (Grev.) Schmitz. Seaweed Res. Utiln. 1986. 9: 67-73.
  5. R.Rengasamy. Studies on Stoechospermum marginatum (C. Ag.) Kuetz. (Dictyotales, Phaeophyta) Curr. Sci. 1986. 55: 251-253.
  1. R.Rengasamy. Studies on Padina glabra Gaillard . Phykos 1986. 25: 1-5.
  1. R.Rengasamy, M. Prema, S. Govindarajan and K. Ilanchelian. Effect of antibiotics on the growth of Hypnea valentiae (Turn.) Mont. (Gigartinales, Rhodophyta). Curr. Sci. 1987. 56: 676-677.
  1. R.Rengasamy and M.Prema. Studies on regeneration of Gelidiopsis variabilis (Grev.) Schmitz and Hypnea valentiae (Turn.) Mont. (Gigartinales,Rhodophyta). Seaweed Res. Utiln. 1987. 10: 1-3.
  1. R.Rengasamy  and K.J. Sukanya. Effect of heavy metals on the growth of Hypnea valentiae (Turn.) Mont. Seaweed Res.Utiln.1988. 11: 27-30.
  1. R.Rengasamy and K. Ilanchelian. Seasonal studies on Hypnea valentiae (Turn.) Mont. (Gigartinales, Rhodophyta) at Muttukadu near Madras. Seaweed Res. Utiln. 1988. 11: 21-26.
  1. V. Vyjananthi and R.Rengasamy. A new apparatus for the determination of gel strength of phycocolloids. Curr. Sci. 1989. 58: 795-796.
  1. R.Rengasamy. Studies on a Padina tetrastromatica Hauck (Dictyotales, Phaeophyta). In: Perspective in Phycology. Prof. M.O.P. Iyengar Centenary celebration vol. Ed. V.N.Raja Rao, University of Madras. To-day and To-morrow printers and publishers, New Delhi. 1990. 285-292.  
  1. R.Hemalatha and R.Rengasamy. Studies on Hypnea alentiae (Turn.) Mont. Under laboratory conditions. In: perspective in Phycology. Prof. M.O.P. Iyengar Centenary celebration vol. Ed. V.N.Raja Rao, University of Madras. To-day and To-morrow printers and publishers, New Delhi. 1990. 349-355. (With).
  1. R.Rengasamy. Studies on Padina distromatica Hauck. Seaweed Res. Utiln. 1991. 13: 185-189.
  1. K. Velkanni and R.Rengasamy. The influence of light on the growth and pigment composition of Hypnea valentiae (Turn.) Mont. Mahasagar 1992. 25: 45-49.
  1. R.Hemalatha and R.Rengasamy. Effect of salinity on Gracilaria edulis (Gmelin) Silva. Seaweed Res. Utiln. 1992. 15: 99-104.
  1. K. Velkanni and R.Rengasamy. Effect of nitrate on growth, pigments and k-carrgeenan content of Hypnea valentiae (Turn.) Mont. Seaweed Res. Utiln. 1992. 15: 57-62.
  1. R.Hemalatha and R.Rengasamy. Effect of total irradiance on Gracilaria edulis (Gmelin) Silva. Seaweed Res. Utiln. 1992. 15: 39-44.
  1. K Manimala and R.Rengasamy. Effect of bioactive compounds of seaweed on the phytopathogen Xanthomonas oryzae. Phykos 1993. 32: 77-83.
  1. R.Hemalatha R.Rengasamy. Studies on Gracilaria edulis (Gmelin) Silva. Phykos 1993. 32: 65-75.
  1. C.Sasikumar R.Rengasamy. Role of red algae Hypnea valentiae (Gigartinales, Rhodophyta) in domestic effluent treatment at different light intensity and quality. Indian J. Mar. Sci. 1994. 23: 162-164.
  1. K. Lourdu Mariadoss and R.Rengasamy. Sutdies on seaweed extracts against phytopathogenic bacterium, Xanthomonas oryzae pv. oryzae, Mar. Res. 1995. 4: 121-126.
  1. R.Sekar, N. Thangaraju and R.Rengasamy. Effect of Seaweed liquid fertilizer of Ulva lactuca on Vigna unguiculata L. (Walp.). Phykos 1995, 34: 49-53.
  1. R.Rengasamy. Culture of Gracilaria edulis under laboratory and field conditions with special reference to growth, pigments and agar content. In: Proc. UNESCO Workshop on Coastal Aquaculture. (Ed. Q.B.Kazmi) 1996. pp. 101-106.
  1. R.Rengasamy. Seaweed culture and environment management in India In: Proc. Workshop on Coastal Aquaculture and Environmental management. (Ed.N.mohmood). Cox'z bazar, Bangladesh, University of Chittagong/UNESCO, 1995. pp. 6-9.
  1. C. Sasikumar, V.N.R.Rao and R.Rengasamy. Effect of alkali treatment of red algae Gracilaria blodegettii and Gracilaria verrucosa (Rhodophyta) on agar quality. Indian J. Mar. Sci. 1997. 26: 191-194.
  1. Sasikumar, C., Rao, V.N.R. and R. Rengasamy. The effect of environmental factors on the qualitative and quantitative characteristics of agar from the marine red alga Gracilaria verrucosa (Gracilariales, Rhodophyta). Indian J. Mar. Sci. 1999. 28: 270-273.
  1. K. Sivakumar and R. Rengasamy. Ultrastructure of the cystocarp of Hypnea valentiae (Turn.) Mont. Gigartinales, Rhodophyta. Phykos 1999. 38: 1-8
  1. R.Hemalatha and R.Rengasamy. Effect of plant growth regulators on Gracilaria edulis (Gmelin) Silva. Seaweed Res.Utiln. 1999. 21: 85-90.
  1. K.Sivakumar and R.Rengasamy. X-ray microanalysis of cell wall, plastid and floridean starch of Hypnea musciformis (Wulf.) Lamour. (Gigartinales, Rhodophyta). Seaweed Res. Utiln. 1999. 21: 49-55.
  1. K. Arun kumar and R. Rengasamy. Antibacterial activities of seaweed extracts / fractions obtained through a TLC profile against the phytopathogenic bacterium Xanthomonas oryzae pv. oryzae. Bot. Mar. 2000. 43: 417-421.
  1. K. Sivakumar and R. Rengasamy. Culture studies on the effect of nitrate on growth, pigments, kappa-carrageenan content and ultrastructure of Hypnea musciformis and H. valentiae. Seaweed Res.Utiln. 2000. 22: 67-74.
  1. K. Arun kumar and R. Rengasamy. Evaluation of Antibacterial Potential of Seaweeds Occuring along the Coast of Tamil Nadu, India against the Plant Pathogenic Bacterium Xanthomonas oryzae pv. Oryzae (Ishiyama) Dye. Botanica Marina. 2000.  43: 409-415.
  1. K. Arun kumar, K. Siva Kumar and R. Rengasamy. Fatty acids composition of Enteromorpha flexuosa (Wulf.) J. Ag. Antibacterial potential. Seaweed Res.Utiln. 2001. 23: 41-45
  1. S. Sridhar and R.Rengasamy. Effect of Seaweed Liquid Fertilizer obtained from Ulva lactuca on the biomass, pigments and protein content of Spirulina platensis. Seaweed Res.Utiln. 2002. 24: 145-149.
  1. R. Rengasamy. Biodiversity of Brown Algae. Algological Research in India. Ed. N.Anand. Publ. Bishen Singh Mahendra Pal Singh, Dehra Dun, India. 2002. 209-212.
  1. K. Kavitha and R. Rengasamy. Potential of Gracilaria verrucosa and Ulva reticulata in integrated aquaculture practice. Seaweed Res.Utiln. 2002. 24: 173-176.
  1. K.Sivakumar and R.Rengasamy. Biochemical and Ultrastructural studies on the Effect of the different light intensities on Hypnea musciformis and H. valentiae from Rameswaram coast. Phycology- Principles, Processes and Applications. Ed. A.S. Ahluvalia. Publ. Daya Publishing house, Delhi. 2003. 197-211.
  2. S. Jothi Saraswathi, B. Babu and R. Rengasamy. Seasonal studies on the alginate and its biochemical composition 1:  Sargassum  polycystum (Fucales),  Phaeophyceae. Phycological Research. 2003. 51: 240-243.
  1. R. Raja, C. Anbazhagan, Senthil Swamy, D. Lakshmi and R. Rengasamy. Nutritional studies on Dunaliella salina (Volvocales, Chlorophyta) under laboratory conditions. Seaweed Research and Utilization. 2004. 26: 127- 146.
  2. R. Raja, C. Anbazhagan, V. Ganesan and R. Rengasamy. Efficacy of Dunaliella  salina (Volvocales, Chlorophyta) in salt refinery effluent  treatment. Asian  Journal of Chemistry. 2004. 16 (2): 1081- 1088.
  3. Kulanthaiyesu Arun Kumar, Narayanan Selvapalam and Ramasamy Rengasamy. The Antibacterial compound sulphoglycerolipid 1-0 palmitoyl-3-0 (6’-sulpho-α-quinovopyranosyl) – glycerol from Sargassum wightii graville (Phaeophyceae). Bot. Mar. 2005. Vol. 48: 441-445.
  4. Rathinam Raja, Shunmugam Hema Iswaria and Ramasamy Rengasamy, Exploitation of Dunaliella for β-carotene production. Appl. Microbiol. Biotechol. 2007. Vol.74: 517-523.
  5. Sundararaju Jothisaraswathi, Bakthavachalam Babu and Ramasamy Rengasamy. Seasonal studies on alginate and its composition II: Turbinaria conoides (J.Ag.) Kiitz. (Fucales, Phaeophyceae) Jl Appl. Phycol. 2006. Vol.18: 161-166
  6. Rathinam Raja, Shunmugam Hema Iswaria, Dakshanamoorthy Balasubramanyam Ramasamy Rengasamy. PCR identification of Dunaliella salina (Volvocales Chlorophyta) and its growth characteristics. Microbiol. Res.,2007. Vol.162: 168-176.
  1. Rathinam Raja, Shunmugam Hema Iswaria, Dakshanamoorthy Balasubramanyam Ramasamy Rengasamy. Productive effect of Dunaliella salina (Volvocales Chlorophyta) against experimentally induced fibrosarcoma on wistar rats. Jl. Microbiol. Res., 2007. Vol 162: 177-184.
  1. R. Rengasamy. 2007. Uses of Marine algae. Advances in Applied Plant Sciences 150th year book publications. Ed: N. Anand.
  1. R. Raja, S. Hemaiswarya and R. Rengasamy. 2007. Exploitation of Dunaliella for B-carotene production. 2007. Appl. Microbiol. Biotechnol. 74:517-523.
  1. Chinnadurai Sreenath Kumar, Dronamraju V.L. Sarada, Thomas Paul Gidon and Ramasamy Rengasamy. 2008. Antibacterial activity of three South Indian seagrasses, Cymodocea serrulata, Halophila ovalis and Zostera capensis. World J. Microbiol. Biotech. 24; 1989-1992.
  1. N. Banu, S. Sridhar, J. Muthumary and R. Rengasamy. 2008. Algae as biological detoxificant of aflatoxin produced by Aspergillus flavus isolated from sunflower seed. Indian J. Sci. Tech. 1 : 1-7.
  1. Nagaraj. S, Sundara Pandian,SM., Karuppasamy,K., Anand, N., and                 . Rengasamy, R. 2008. Antibacterial activities and exploration of medicinal plants of Coldenia procumbens, LINN. (Seruppadai). Indian J. Appl. Microbiol.. 8 : 5-10.
  1.  Paul Gideon, T. and R. Rengasamy, 2008. Toxicological evaluation of fucoidan from Gladosiphon okamuranus. J. Med. Food. 11: 638 – 642
  1. Nagaraj, S., Sundra Pandian, S.M. , Mahendra Perumal, G., Anand, N. and R. Rengasamy, R. 2008. Pharmacognostical studies on Pedalium murex Linn. (Anai-Nerunji). Indian J. Bot. Res. 4: 223 – 232
  1. Swarna, V. Kanth, P. Ramesh kannan, T. Tamil Selvi, P. Saravanan, J. Raghava Rao, Balachandran Unni Nair and R. Rengasamy, 2008. Phytoremediation of soil using Sesuvium portulacastrum – Part I: Removal of Na+ and Cl- from tannery waste water treated soil. Jacol 104: 17-23
  1. Sreenath kumar, C. Sarada, D.V.L., and R. Rengasamy, 2008. Marine macrophytes in aquafeed formulation for Macrobrachium rosenbergii. Seaweed Res. Utiln. 30 : 189 – 197
  1. Sreenath kumar, C. Sarada, D.V.L., and R. Rengasamy, 2008. Seaweed extracts control the leaf spot disease of the medicinal plant Gymnema sylvestre. Indian J. Sci. Tech. 1: 1-5
  1. Sarada, D.V.L., C. Sreenath kumar, C. and R. Rengasamy 2008. A comparative study on the hydrography of the coast of Chennai. Indian J. Sci. Tech. 1: 1-6
  1. Sundararaj, R., S. Nagaraj, Vinodhini, S., N. Paulraj and R. Rengasamy, 2009. Phenological and histological studies in style and stigma of Solanum melongena Linn. (Brinjal). Indian J. Bot. Res. 5: 37 – 44
  1. Raja kumar, P., R. Raja, S. Selvam, and R. Rengasamy, 2009. Synthesis and antibacterial activity of some novel imidazole based dicationic quinolinophanes. Bioorganic & Medicinal Chemistry Letters 19: 3466 - 3470
  2. Ramesh kannan, P., Swarna, V.K., Chandrasekaran, B., Raghava Rao, J. Gnansekaran, C.S., and R. Rengasamy, 2009. Phytoremediation of tannery wastewater treated lands:  Part I:  Accumulation of Na+ and Cl- in Salicornia brachiata. J. Soc. Leather Tech. Chem. 93: 233 – 239 (i.f. 0.7)
  3. Ramesh kannan, P., Deepa, S., Swarna V.K., Raghava Rao, J., Gnansekaran, C.S. and R. Rengasamy, 2009. Studies on the use of Sesuvium portulacastrum – Part III:  Phytoremediation of salt contaminated soils of tannery wastewater discharged lands.  JALCA: 104: 414 - 422
  4. Rajakumar, P., Venkatesan, N., Sekar, K,, Nagaraj, S., R. Rengasamy, 2010.  Synthesis and antioxidant properties of enone core based dendrimers with carbazole as suface group. E. J. Med. Chem. 45: 1220 – 1224
  5. Vinodh, R., Elumalai, L.K., Sangeetha, D. and R. Rengasamy, 2009. Synthesis, characterization and antimicrobial activity of novel quaternized poly (Styrene ethylene butylene poly styrene). J. Biosci. Tech. 1: 45-51 
  6.  Jayapriyan, K. R., R. Rajkumar, P. Ramesh Kannan, S. Divya and R. Rengasamy, 2010. Significance of 18S rDNA specific primers in the identification of genus Dunaliella.  J. Expt. Sci. 1: 27 – 31
  7. Jayapriyan, K. R., R. Rajkumar, L. Sheeja , S. Divya and R. Rengasamy, 2010.  Optimization study in Dunaliella salina EU5891200 isolated in salt pans of Tamil Nadu, South India.  Recent Res. Sci. Tech. 2: 54 – 62
  8. Sridhar, S. and R. Rengasamy, 2010.  Significance of Seaweed Liquid Fertilizers for minimizing chemical fertilizers and improving yield of Arachis hypogea under field trial.  Recent Res. Sci. Tech. 2: 73 – 80
  9. Arunkumar,K., S.R. Sivakumar and R. Rengasamy,  2010. Review on Bioactive Potential in Seaweeds (Marine Macroalgae): A Special Emphasis on Bioactivity of Seaweeds Against Plant Pathogens. Asian J. Plant Sci. 9: 227-240.
  10. Paul Thomas, M. Rajendran, B. Pasanban and R. Rengasamy, 2010.  Cardioprotective activity of Cladosiphon okamuranus fucoidan against isoproterenol induced myocardial infarction in rats. Phytomedicine
  11. Jayapriyan, K.R., R. Rajukumar, R. Sheeja, L. Nagaraj, S. Divya and R. Rengasamy, 2010.  Discrimination between the morphological and molecular identification in the genus Dunaliella.  Int. J. Curr. Res. 8: 73 - 78
  12. Sridhar, S., and R. Rengasamy, 2010. Effect of Seaweed Liquid Fertilizer on the growth, biochemical constituents and yield of Tagetes erecta, under field trial. J. Phytol. Phytophysiol. 2: 61 - 68
  13. Arunkumar, K., S. R. Sivakumar and R. Rengasamy, 2010.   Review on bioactive potential in seaweeds (Marine Macroalgae):  A special emphasis on bioactivity of seaweeds against plant pathogens.  Asian J. Pl. Sci. 9: 227-240  
  14. Rajkumar, R., K.R. Jayappriyan, P.Ramesh Kannan and R. Rengasamy, 2010.  Optimization of culture conditions for the production of protease from Bacillus  megaterium. J. Ecobiotech. 2/4:  40-46
  15. Rajkumar, R., K. R. Jayappriyan and R. Rengasamy, 2011.  Production and characterization of a novel protease from Bacillus sp. RRMN1 under solid state fermentation.  J. Microbiol. Biotechnol. (in press)
  16. Jayappriyan, K. R., R. Rajkumar and R. Rengasamy, 2011. Unusual occurrence of non carotenogenic strains of Dunaliella bardawil and Dunaliella parva in India. J.  Basic Microbiol. 51: 1-11.
  17. Rajkumar, R. , K.R. Jayappriyan and R. Rengasamy, 2011.  Production and characterization of a novel protease from Bacillus sp. RRM1 under solid state fermentation. J. Microbiol. Biotechnol. 21: 627 - 636
  18. Sridhar, S. and R. Rengasamy, 2011.  Effect of seaweed liquid fertilizer on growth, pigment concentration and yield of Amaranthus rosburghinus and Amaranthus tricolor under field trial. Int. J. Curr. Res. 3: 131 – 134
  19. Ashokkumar, V. and R. Rengasamy, 2011. Growth and lipid production of Botryococcus braunii Kutz. Using different nitrogen sources under laboratory condition. Int. J. Curr. Res. 3: 195 - 198.

CO – ORDINATOR

  1. Refresher Course for the University and College Teachers ‘On Bioresearches and Human Welfare’ Organized by the Academic Staff College, at the CAS in Botany, Unversity of Madras. 8th -28th February 2006.
  1. Refresher Course for the University and College Teachers on ‘Impact of Biology on human welfare’, organized by the  Academic Staff College, at the CAS in Botany University of Madras. 4th – 24th Februay 2010
  2. All India Co-ordinated Project on Taxonomy of Algae, Ministry of Environment & Forests, New Delhi – Co-coordinator.   Since 2009
  3. Orientation course (Intensive training programme) organized for the Newly Recruited Government College Lecturers, Tamil Nadu State Council  for Higher Education and University Grants Commission – Academic Staff College, University of Madras, July 7 – Aug 8, 2009
  4. Orientation Programme for the Newly Recruited Teachers for Government Teachers, 2011
    5. CONFERENCE/ORIENTATION COURSE ORGANIZED:

a. National Conference on ‘Current trends in algal biodiversity and biotechnology, at CAS in Botany, University of Madras, Feb 7-8, 2008

b. Orientation course (Intensive training programme) organized for the newly recruited Government College Lecturers, Tamil Nadu State Council  for Higher Education and University Grants Commission – Academic Staff College, University of Madras, July 7 – Aug 8, 2009