Dr.(Mrs).G.Rajkumar

Dr (Mrs) Gowri Rajkumar
Senior Lecturer I
B.Sc. [Hons] (Jaffna), Ph.D. (Colombo)

gowrir@univ.jfn.ac.lk
+94 21 222 9645

 

  • Completed PhD in Plant Molecular Biology from the Institute of Biochemistry Molecular Biology and Biotechnology (IBMBB), University of Colombo, Sri Lanka.

Research area – Plant Molecular Biology and Bioinformatics

  • B.Sc. Honours in Botany

Institution: University of Jaffna, Jaffna, Sri Lanka
Area: Specialization in Botany

  • Member of the Faculty Board of the Faculty of Science, University of Jaffna
  • Life member of the Jaffna Science Association, Sri Lanka
  • Life member of the University Teachers Association, University of Jaffna, Sri Lanka
  • Life member of the Jaffna University Science Teachers Association (JUSTA), University of Jaffna, Sri Lanka
  • Joint secretary, JUSTA University of Jaffna, Sri Lanka 2013/2014.
  • Secretary of Jaffna Science Association, Section A (Applied Science)– 2013/2014.
  • Student Councellor Period from 01.02.2018 – 31.01.2019 and 01.03.2020-28.02.2021
  • Academic Advisor 13-06-2017 – 13-06-2020
  • Academic Career Guidance Advisor 02-07-2021 to 01.07. 2022
  • Member of Editorial committee for Faculty Newsletter and student Handbook from 01/092020 for 3 years
  • Member Career Guidance cell
  • Member IQAC
  • Senior Treasurer: Biological society 2020-2021
  • Plant Diversity 11
  • Molecular Biology and Biotechnology
  • Molecular Genetics
  • Plant Physiology

Research papers published in National/International Journals:

  1. Rajkumar G, Weerasena J , Fernando K , Liyanage A,  Silva R. Genetic differentiation of Sri Lankan traditional rice (Oryza sativa) varieties and Wild rice species by AFLP markers. Nordic Journal of Botany. 2011; 29:2:238–243.
  2. Rajkumar G,  Weerasena J,  Fernando K. Liyanage  A. Assessment of Genetic Diversity among Sri Lankan Rice varieties by AFLP  Markers. Plant Genetic Resources: Characterization and Utilization. 2011;9:224-228.
  3. Rajkumar G , Weerasena OVDSJ , Fernando KKS , Liyanage ASU AFLP Analysis of Genetic Relationships and Diversity of  Sri Lankan Oryza sativa cultivars (Improved Varieties). Journal of Biotechnology. (2010) Doi:10.1016/j.jbiotech.2010.09.886.
  4. Rajkumar G, Silva R, Weerasena J , Kumudu K. Comparison of General Nutritional composition of wild rice rhizomatis D.A. Vaughan and the commercial variety Bg352. Tropical Plant Research. 2014:1:2:08–10
  5. Rajkumar, O. V. D. S. J. Weerasena, K. K. S. Fernando. A study of genetic diversity in Oryza rhizomatis D.A. Vaughan accessions using AFLP markers and morphological traits. Tropical Plant Research. 2015:2(1): 10–16.
  6. Gowri Rajkumar, Jagathpriya Weerasena, Rangika Silva and Kumudu Fernando. Genomic diversity of Sri Lankan new improved rice varieties revealed by AFLP markers. International Journal of Applied Sciences and Biotechnology. 2016: 4(1): 32-38.
  7. Gowri Rajkumar, Jagathpriya weerasena and Kumudu Fernando. DNA Sequencing and Bioinformatics Analysis of Clone pOr78 from the Species Specific Suppression Subtractive Hybridization Library Constructed from Endemic Wild Rice Species rhizomatis. International Journal of Applied Sciences and Biotechnology. 2017: 5(2): 133-140.
  8. Gowri Rajkumar and Bhaminy Selvakulasingam. Comparative Study of Nutrient Composition of Selected Cereal Grains Available in Jaffna, Sri Lanka. Annals of Biological Research, 2019, 10 (2): 21-24
  9. Gowri Rajkumar, Kamalini Ashokumar, Arulanantham Christy Thavaranjit. A Comparative study on plasmid isolation from strains of Enterobacter aerogenes using different optimized procedures.  Vingnanam Journal of Science, 2020. Vol.15 (2):29-32.
  10. Vinotha Sanmugarajah, Gowri Rajkumar. A Review of Anti-hyperglycemic Effects of Curry Leaf Tree (Murraya koenigii). Borneo Journal of Pharmacy Vol 5 No 2 (2022): 104-114.
  11. Gowri Rajkumar, Mihiri Rangika Jayasinghe, Vinotha Sanmugarajah. Comparative Analytical Study of Phytochemicals in Selected Anti-diabetic Medicinal Plant Seeds in Sri Lanka. Pharmaceutical Sciences and Research (PSR), 8(3), 2021, 145 – 155.
  12. G Rajkumar, HP Araghchi, S Vinotha. Comparative In Vitroantimicrobial activity of selected four medicinal plant leaves. Vingnanam Journal of Science. 17 (1), 2022.
  13. Gowri Rajkumar. Germination and Methods to break dormancy in wild rice species Oryza rhizomatis. Vingnanam Journal of ScienceVol.17 (1), 2022.
  14. F.Nisath, A.C Thavaranjit, G. Rajkumar, R.Srikaran. Microbial and Chemical Quality of Selected Dried Fish Available in a Retail Market as an Approach for Assessing Health Safety Journal of Food and Agriculture. Wayamba University. 15(1):37-52.2022.
  15. Gowri Rajkumar, Panambara Arachchilage Harini Rangana Panambara, Vinotha Sanmugarajah. Comparision of Qualitative and Quantitative Phytochemical Evaluation of Selected Leaves of Medicinal Plants. Borneo Journal of Pharmacy. Vol 5 (2): 2022.93–103.
  16. Vinotha Sanmugarajah, Gowri Rajkumar, P.A.H.R. Panambara, (2022). A Detail Review on Heart-Leaved Moonseed (Tinospora cordifolia) Medicinal Plant. Journal of Tropical Pharmacy and Chemistry; 6(2): 1-13.
  17. Gowri Rajkumar, Mihiri Rangika Jayasinghe, and Vinotha Sanmugarajah. (2023). In vitro antimicrobial evaluation between the selected anti-diabetic medicinal plant seeds in Sri Lanka. Journal of Pharmacy, 3(1), 19–26.

Research papers (full) published in National/International Conference:

  1. Mathanki Krishnamoorthy and Gowri Rajkumar Optimization of DNA extraction Protocol for herbarium specimens (2017). Asia-Pacific Multidisciplinary Research Conference. Colombo 29-30  July 2017. P37
  2. M.D.K Dissanayaka and G Rajkumar Proximate nutritional analysis of small onion varieties, Bombay onion and garlic available in Jaffna (2017).Proceedings of the 1st International Symposium on Agriculture. 6th October, Faculty of Agriculture, Eastern University of Sri Lanka. P71-75
  3. Ajeitha and R Gowri. Comparative analysis of general nutritional composition of selected rice varieties grown in Northern Province of Sri Lanka. Proceedings of the 5th Young Scientists Forum (YSF), National Science and Technology Commission. 2016: 1-4.

Abstracts presented/published in conferences/ proceedings

  1. Gowri P and Nandakumar J. 2005. Allelopathic effects of Cyperus rotundus (purple nut sedge) on early seedling growth of maize, rice, onion and tomato.  13th Annual sessions Proceedings of the Jaffna Science Association. Vol. 12, p02.
  2. Rajkumar G, Weerasena OVDSJ, Fernando KKS,   Liyanage ASU. 2009. Genetic Differentiation of Sri Lankan Rice Varieties Using Fluorescent AFLP (Amplified Fragment Length Polymorphisms) Markers. International conference on frontiers in molecular life sciences of Institute of Biochemistry Molecular Biology and Biotechnology: Page 43.
  3. Rajkumar G, Weerasena OVDSJ, Fernando KKS, Liyanage ASU. 2010. Assessment of the genetic variability among Sri Lankan rice varieties by fluorescent AFLP (Amplified Fragment Length Polymorphisms) markers. Second International Symposium on Genomic of Plant Genetic Resources, Bologna, Italy.Pp3.73:153.
  4. Rajkumar G , Weerasena OVDSJ , Fernando KKS , Liyanage ASU. 2010. AFLP Analysis of Genetic Relationships and Diversity of Sri Lankan Oryzasativa cultivars (Improved Varieties). 14th International Biotechnology Symposium and Exhibition Biotechnology for the Sustainability of Human Society. Rimini, Italy.
  5. Rajkumar G, Weerasena OVDSJ , Fernando KKS , Liyanage ASU. 2010. Assessment of the genetic diversity of Sri Lankan traditional rice varieties by fluorescent Amplified Fragment Length Polymorphisms Markers (fAFLP). International Rice Research Conference, Hanoi, Vietnam. P12:181
  6. Rajkumar G, Weerasena OVDSJ , Fernando KKS , Liyanage ASU. 2010 Utility of Biosystematics and molecular genetics in differentiation of Indigenous rice germplasm collection of Sri Lanka.  5th Asian Biotechnology and Development Conference, Kandy, Sri Lanka.
  7. Gowri Rajkumar, Jagathpriya Weerasena, Rangika Silva. 2011. Comparision of similarity coefficients for Amplified Fragment Length Polymorphism molecular markers used for cluster analysis and genetic relationship within Sri Lankan rice varieties. Proceedings of the International Statistics Conference.
  8. Gowri R, Weerasena OVDSJ, Fernando KKS. 2011. Revealing Genomic diversity of Sri Lankan traditional, improved and wild rice species. Fourth annual scientific sessions of Institute of Biochemistry Molecular Biology and Biotechnology, University of Colombo.  Page 21.
  9. Rajkumar G, Weerasena OVDSJ, Fernando KKS, Ratnasiri PW. 2012. Morphological and Molecular comparisons of rhizomatis accessions collected from different locations in Sri Lanka. Fifth annual scientific sessions of Institute of Biochemistry Molecular Biology and Biotechnology, University of Colombo.  Page 5.
  10. G Rajkumar, R.Silva, J.Weerasena, K.Fernando. 2013. Analysis of general nutritional composition of wild rice species Oryzarhizomatis. 20th Annual sessions Proceedings of the Jaffna Science Association. Vol 20. p04.
  11. Gowri Rajkumar, Jagath Weerasena, Kumudu Fernando. 2014. AFLP analysis of wild rice species available in Sri Lanka. 21st Annual sessions Proceedings of the Jaffna Science Association. Vol 20. p07.
  12. Gowri Rajkumar, Jagathpriya weerasena, Kumudu Fernando. 2014. Construction of species specific suppression subtractive hybridization library from the endemic wild rice species Oryzarhizomatisand characterization of cDNA clones. 2nd International Conference Frontiers to Molecular Life Sciences, IBMBB, University of Colombo. Page 42.
  13. Gowri Rajkumar, Jagath Weerasena, Kumudu Fernando, Yasintha Liyanage. 2014.  Assessment of viability, germination potential and dormancy breaking methods of Sri  Lankan endemic wild rice species Oryza rhizomatis. (Abstract No. IRC14-0552). 4th International Rice Conference, Bangkok, Thailand.
  14. Gowri Rajkumar, Jagathpriya weerasena, Kumudu Fernando. 2014. DNA sequencing and bioinformatics analysis of clone pOr78 from the species specific suppression subtractive hybridization library constructed from wild rice species rhizomatis. (Abstract No. IRC14-1262). 4th International Rice Conference, Bangkok, Thailand.
  15. Gowri Rajkumar and Bhaminy Selvakulasingam. 2017. Comparative analysis of general nutritional composition of selected grains grown in Northern Province of Sri Lanka. Second Asia-Pacific Multidisciplinary Research Conference. Colombo 29-30 P19
  16. Fathima Sameera Mohammed Saheem and Gowri Rajkumar. 2018. A Modified CTAB protocol for DNA extraction from edible mushrooms. Third Asia-Pacific Multidisciplinary Research Conference. Colombo, Sri Lanka. P.14
  17. Mathanki Krishnamoorthy and Gowri Rajkumar. DNA Extraction from various flowers. Third Asia-Pacific Multidisciplinary Research Conference. Colombo, Sri Lanka. P.21
  18. Mathanki Krishnamoorthy and Gowri Rajkumar. Optimization of DNA extraction from various parts of Cardiospermum helicacabum. Wayamba university International conference.p54
  19. Jayawardhana and G Rajkumar. 2020. Proximate Nutrient Composition of selected green leafy vegetables consumed in Jaffna, Sri Lanka. Proceedings of Jaffna Science Association. Vol.27.p30.
  20. Jayawardhana RPLS and Rajkumar G. Comparative and quantitative estimation of macronutrients in six different banana varieties (Musa Spp) consumed in Jaffna. Proceedings of the Physics Society University of Jaffna. Vol 01.p.04
  21. Mihiri Rangika JA, Rajkumar G, Vinotha S. 2021. Comparative analysis of phytochemicals presents in seeds of four medicinal plants used in control of diabetic mellitus. 7 th International Conference on Ayurveda, Unani, Siddha and Traditional Medicine. University of Colombo. P.61
  22. Panambara PAHR , Rajkumar G , Vinotha S , Vengadaramana A. 2021. Comparative study on the antibacterial activity of four medicinal plants leaves. 7 th International Conference on Ayurveda, Unani, Siddha and Traditional Medicine. University of Colombo.  103.
  23. JA Mihiri Rangika, G Rajkumar, S Vinotha. 2021. Comparative in vitro antimicrobial activities of selected medicinal plant seeds used in control of Diabetes mellitus. 7th International Conferenceon Dry Zone Agriculture (ICDA 2021). 3rd & 4th December 2021, p. 91.
  24. A.H.R. Panambara, G. Rajkumar and V. Sanmugarajah2021. Comparative evaluation of phytochemical constituents in leaves of four selected medicinal plants. Proceedings of the Postgraduate Institute of Science Research Congress 2021 (RESCON), Sri Lanka: 29th – 31st October 2021, p. 109.
  25. A.H.R. Panambara, G. Rajkumar and V. Shanmugarajah. 2021. Comparative evaluation of phytochemical constituents in leaves of four selected medicinal plants. Postgraduate Instituteof Science Research Congress, Sri Lanka: 29th–31st October. P.109
  26. HP Arachchi, G Rajkumar. 2022. Comparative Physicochemical evaluation of Leaves of Selected Medicinal Plants used in Traditional Medicine. International Research Conference in Sidda Medicine (3rd IRCSM).p.47
  27. A.H.R. Panambara, G.Rajkumar, V. Sanmugarajah.2022. Qualitative and quantitative phytochemical analysis of leaves and flowers of the medicinal plant Ocimum tenuiflorum L. Proceedings and Abstracts of Faculty Annual Research Session 2022 (FARS 2022), Faculty of Applied Science, University of Vavuniya, 3rd November 2022, p. 24.
  28. M. D. N. Serasinghe, G. Rajkumar and V. Sanmugarajah. 2022. Preliminary analysis of phytochemicals in different parts of Jack fruit tree (Artocarpus heterophyllus Lam) in Sri Lanka. Proceedings and Abstracts of International Conference on Applied and Pure Sciences 2022 (ICPAS 2022), Faculty of Science, University of Kelaniya, 14th October 2022, p. 26.
  29. Umeshika Supunsara Aheshani Jayathilaka, Gowri Rajkumar, Vinotha Sanmugarajah. A comparative study of screening and quantitative determination of phytochemical compounds in different parts of the antidiabetic medicinal plant Psidium guajavaL. in Sri Lanka. Proceedings of 26th Annual Technological Advances in Science, Medicine and Engineering Conference  (TASME 2022). Toronto, Canada, 22nd August 2022. p. 108.
  30. Jayasinghe M.R., Rajkumar G., Sanmugarajah V.and Thavaranjit A.C. 2022. Comparative physicochemical analysis of seeds of selected medicinal plants used in Traditional Medicine. Proceedings and Abstracts of 9th Ruhuna International Science and Technology Conference 2022 (RISTCON): 19th January 2022, p. 76.
  31. S. Aheshani Jayathilaka, G. Rajkumar, V. Sanmugarajah. 2022. comparative physicochemical analysis of different parts of medicinal plant psidium guajava l. in Jaffna district. 5th International Research Conference (TRInCo – 2022): 9th – 12th November 2022.p
  32. Serasinghe S.M.D.N., Rajkumar G. and Sanmugarajah V. 2023. Comparative antioxidant activities of different vegetative parts of Artocarpus heterophyllus Proceedings and Abstracts of 10thRuhuna International Science and Technology Conference 2022 (RISTCON): 18th January 2023, p. 61.
  • Encouragement Award: Financial Assistance by UGC under the Encouragement Award Scheme – 2014 Category: International mobility support
  • IRRC28 travel grant award: Travel and Registration grants by the scientific committee of the 3rd International Rice Congress, 2010.
  • Outstanding poster presentation award at the international conference on frontiers in molecular life sciences of Institute of Biochemistry Molecular Biology and Biotechnology in 2009.
  • MoortathambySwaminathan prize for Botany for the best performance in the Honours degree in Botany
  • Professor K. Theivendrarajah gold medal for best performance in the Honours degree in Botany

Appointments and university positions

  • Academic Advisor 13-06-2017 – 13-06-2020
  • Student Councellor Period from 01.02.2018 – 31.01.2019 and 01.03.2020- 28.02.2021
  • Joint secretary, JUSTA University of Jaffna, Sri Lanka 2013/2014.
  • Secretary of Jaffna Science Association, Section A (Applied Science) Sri Lanka – 2013/2014.
  • Member of Technical Evaluation Committee- Workshop on Curriculum Revision – Molecular Biology- 2013.
  • Member of Technical Evaluation Committee- Workshop on Curriculum Revision – Botany – 2013.