Prof. Pamoda Bhasini Ratnaweera
Professor
Ph.D. in Natural Products Chemistry (Colombo, collaborated with University of British Columbia, Vancouver, Canada)
B.Sc.Hons. (First Class) in Zoology (Colombo)
Email :pamoda@uwu.ac.lk / pamoda.b@gmail.com
Phone : +94 55 222 6676
Uthpala S. Deshapriya, D.L. Senal Dinuka, Pamoda B. Ratnaweera, Chinthaka N. Ratnaweera (2021). In silico study for prediction of novel bioactivities of the endophytic fungal alkaloid, mycoleptodiscin B for human targets. Journal of Molecular Graphics and Modelling 102: 107767. https://doi.org/10.1016/j.jmgm.2020.107767
Pamoda B. Ratnaweera, J.M. Nisansala M. Jayasundara, H.H.M. Suseema D. Herath, David E. Williams, Sasini U. Rajapaksha, K.M.D.W. Prabath Nishantha, E. Dilip de Silva and Raymond J. Andersen (2020). Antifeedant, contact toxicity and oviposition deterrent effects of phyllostine acetate and phyllostine isolated from the endophytic fungus Diaporthe miriciae against Plutella xylostella larvae. Pest Management Science 76:1541-1548. https://doi.org/10.1002/ps.5673
Rukshana Mohamad-Ramshan, Pamoda B. Ratnaweera, David E. Williams, E. Dilip de Silva, Raymond J. Andersen (2019). Stable isotope feeding studies reveal a steroid 5(67) abeo ring contraction biogenesis for the antibiotic solanioic acid produced by cultures of the fungus Rhizoctonia solani. The Journal of Antibiotics 72: 246-251. https://doi.org/10.1038/s41429-018-0137-9
Pamoda B. Ratnaweera, R. Chandula Walgama, Kinkini U. Jayasundera, Suseema D. Herath, S. Abira, David E. Williams, Raymond J. Andersen, E. D. de Silva (2018). Antibacterial activities of endophytic fungi isolated from six Sri Lankan plants of the family Cyperaceae. Bangladesh Journal of Pharmacology 13: 264-272. https://doi.org/10.3329/bjp.v13i3.36716
David E. Williams, Niranjan W. Gunasekara, Pamoda B. Ratnaweera, Zehua Zheng, Samantha Ellis, Sarah Dada, Brian O. Patrick, Ravi L.C. Wijesundera, Chandrika m. Nanayakkara, Wilfred A. Jefferies, E. Dilip de Silva, Raymond J. Andersen (2018). Serpulanines A to C, N-Oxidized Tyrosine derivatives isolated from the Sri Lankan fungus Serpula sp.: Structure elucidation, synthesis and histone deacetylase inhibition. Journal of Natural Products 81, 78-84. DOI:https://dx.doi.org/10.1021/acs.jnatprod.7b00680
Ryan M. Centko, Pamoda B. Ratnaweera, Christina Tysoe, Stephen G. Withers, E. Dilip de Silva, Raymond J. Andersen (2017). Alpha-glucosidase and alpha-amylase inhibiting thiodiketopiperazines from the endophytic fungus Setosphaeria rostrata isolated from the medicinal plant Costus speciosus in Sri Lanka. Phytochemistry Letters 22:76-80. https://dx.doi.org/10.1016/j.phytol.2017.09.004
Yasara de Mel, Sashini Perera, Pamoda B. Ratnaweera, Chanika D. Jayasinghe (2017). Novel insights of toxicological evaluation of herbal medicine: Human based toxicological assays. Asian Journal of Pharmacy and Pharmacology 3(2): 41-49.
Ranga K. Dissanyaka, Pamoda B. Ratnaweera, David E. Williams, C. Dilrukshi de Silva, Ravi L. C. Wijesundera, Raymond J. Andersen, E. Dilip de Silva (2016). Antimicrobial activities of endophytic fungi of the Sri Lankan aquatic plant Nymphaea nouchali and chaetoglobosin A and C, produced by the endophytic fungus Chaetomium globosum. Mycology: An International Journal of Fungal Biology 7(1):1-8. https://dx.doi.org/10.1080/21501203.2015.1136708
Pamoda B. Ratnaweera, David E. Williams, E. Dilip de Silva and Raymond J. Andersen (2016). Antibacterial metabolites from the Sri Lankan demosponge derived fungus Aspergillus flavipes. Current Science 3(9):1473-1479. https://www.jstor.org/stable/24909158
Ranga K. Dissanayake, Pamoda B. Ratnaweera, David E. Williams, C. Dilrukshi Wijayarathne, Ravi L. C. Wijesundera, Raymond J. Andersen, E. Dilip de Silva (2016). Antimicrobial activities of mycoleptodiscin B isolated from endophytic fungus Mycoleptodiscus sp. of Calamus thwaitesii Becc. Journal of Applied Pharmaceutical Science 6(1):1-6. DOI: https://dx.doi.org/10.7324/JAPS.2016.600101
Pamoda B. Ratnaweera, E. Dilip de Silva, Ravi L. C. Wijesundera and Raymond J. Andersen (2016). Antimicrobial constituents of Hypocrea virens an endophyte of the mangrove-associate plant Premna serratifolia L. Journal of National Science Foundation, Sri Lanka 44(1):43-51. DOI: https://dx.doi.org/10.4038/jnsfsr.v44i1.7980
Pamoda B. Ratnaweera, David E. Williams, Brian O. Patrick, E. Dilip de Silva and Raymond J. Andersen (2015). Solanioic acid, an antibacterial degraded steroid produced in culture by the fungus Rhizoctonia solani isolated from tubers of the medicinal plant Cyperus rotundus. Organic Letters 17:2074-2077.DOI: https://dx.doi.org/10.1021/acs.orglett.5b00596
Pamoda B. Ratnaweera, E. Dilip de Silva, David E. Williams, Raymond J. Andersen (2015). Antimicrobial activities of endophytic fungi obtained from the arid zone invasive plant Opuntia dillenii and the isolation of equisetin, from endophytic Fusarium sp. BMC Complementary and Alternative Medicine 15:220. DOI: https://dx.doi.org/10.1186/s12906-015-0722-4
Pamoda B. Ratnaweera, David E. Williams, E. Dilip de Silva, Ravi L. C. Wijesundera, Doralyn D. Dalisay and Raymond J. Andersen (2014). Helvolic acid, an antibacterial nortriterpenoid from a fungal endophyte, Xylaria sp. of orchid Anoectochilus setaceus endemic to Sri Lanka. Mycology: An International Journal of Fungal Biology 5(1): 23-28. https://dx.doi.org/10.1080/21501203.2014.892905
Mark S. Harvey, Pamoda B. Ratnweera, Preethi V. Udagama and Mayuri R. Wijesighe (2012). A new species of the pseudoscorpion genus Megachernes (Pseudoscorpiones: Chernetidae) associated with a threatened Sri Lankan rainforest rodent, with a review of host associations of Megachernes. Journal of Natural History 46:2519-2535.https://dx.doi.org/10.1080/00222933.2012.707251
Pamoda B. Ratnaweera, Mayuri R. Wijesinghe and Preethi V. Udagama-Randeniya (2010). Parasitic associations of a threatened, endemic rainforest rodent Mus mayori pococki (Sri Lanka spiny rat). Journal of Threatened Taxa 2(6): 901-907.
Pamoda B. Ratnaweera and Mayuri R. Wijesinghe (2009). Effect of food quality and availability on rainforest rodents of Sri Lanka. Journal of Threatened Taxa 1(12): 581-588.
Pamoda B. Ratnaweera, E. Dilip de Silva (2017). Endophytic fungi: A remarkable source of biologically active secondary metabolites. In: Maheshwari D., Annapurna K. (eds) Endophytes: Crop productivity and protection. Sustainable development and biodiversity, Vol 16. Chapter 9, p.191-212, Springer, Cham.
Title of the invention: A method for isolating phyllostine acetate and analogs from the fungus Diaporthe miriciae, its compositions, and its applications for the control of the agricultural insect pest Plutella xylostella.
Inventors: P.B. Ratnaweera, J.M.N.M. Jayasundara, H.H.M.S.D. Herath, D.E. Williams, S.U. Rajapaksha, K.M.D.W.P. Nishantha, E.D. de Silva, R.J. Andersen
Patent No. 21424
Date of filing: 04/11/2020
Title of the invention: A novel method for isolating Mycoleptodiscin B from an endophytic fungus Mycoleptodiscus sp. isolated from leaves of Calamus thwaitesii and its application against human pathogenic bacteria.
Inventors: D.M.R.K Dissanayake, P.B. Ratnaweera, D.E. Williams, C.D. Wijerathna, R.L.C. Wijesundera, R.J. Andersen, E.D de Silva
Patent No. 18931
Date of filing: 15/08/2016
Title of the invention: A method for isolating Solanioic acid from the fungus Rhizoctonia solani, its compositions and its antibacterial activity against pathogenic bacteria.
Inventors: P.B. Ratnaweera, D.E. Williams, R.J. Andersen, E.D de Silva, B.O. Patrick
Patent No. 18450
Date of filing: 01/10/2015
K. H. T. P. Kumarasinghe, T. Pavalakantharasa, J. M. N. M. Jayasundara, P. B. Ratnaweera (2020) Antibacterial cytochalasin B from endophytic Curvularia lunata isolated from Cyperus iria of Sri Lanka. Proceedings of the 1st International Conference on Frontiers in Chemical Technology. 20-22 July, 2020, Colombo, Sri Lanka, 23p.
H. P. Sandeepani, P. B. Ratnaweera (2020) Antibacterial activity of entomopathogenic fungi isolated from Vespa affinis and Apis dorsata in Sri Lanka (2020) Proceedings of the 1st International Conference on Frontiers in Chemical Technology. 20-22 July, 2020, Colombo, Sri Lanka, 29p.
D. P. H. Madhushika, J. M. N. M. Jayasundara, P. B. Ratnaweera, D. E. Williams, E. D. de Silva, R. J. Andersen (2020) Antibacterial activities of peptaibols, trichocellin A-I and B-II, isolated from the endophytic fungus Trichoderma reesei. Proceedings of the 1st International Conference on Frontiers in Chemical Technology. 20-22 July, 2020, Colombo, Sri Lanka, 30p.
D. P. H. Madhushika, J. M. N. M. Jayasundara, P. B. Ratnaweera, E. D. de Silva (2020) Antifeedant activity and contact toxicity of the two peptaibols, trichicellin A-I and B-II isolated from the endophytic fungus Trichoderma reesei. Proceeding of the International Research Conference of Uva Wellassa University, July 29-30, 2020, Badulla, Sri Lanka, 25p.
R. D. U. S. Deshapriya, D. L. S. Dinuka, C. N. Ratnaweera, P. B. Ratnaweera (2019) Activity of several endophytic fungal extracts from Sri Lanka against Staphylococcus aureus; an in-silico assessment. The 12th International Research Conference 2019, General Sir John Kotelawala Defense University, Colombo, Sri Lanka, 211p.
National Level
Member of the Jury for ‘Sahasak Nimavum 2021’ National Online Invention and Innovation Competition conducted by the Sri Lanka Inventors Commission (SLIC)
Chief Examiner of G.C. E. Advanced Level (A/L) Biology paper marking (2020)
Vice President, Council of the Institute of Biology, Sri Lanka (Sep 2020 to Sep 2022)
Secretary, Council of the Institute of Biology, Sri Lanka (Sep 2017-Sep 2020)
Council Member of the Institute of Biology, Sri Lanka (Sep 2015- to Sep 2022)
Managing Editor, Sri Lankan Journal of Biology (SLJB) (From its inception in 2016-2022)
Institutional Coordinator of the ‘Asian symposium on medicinal plants, spices and other natural products XVI (ASOMPS XVI)’ on 12-14 December 2018 at BMICH
University Coordinator for the Inter-University Biology Quiz Competition 2018 & 2020, by the Institute of Biology, Sri Lanka
Organizing committee member and University coordinator of the Biology Challenge 2020 organized by the Institute of Biology, Sri Lanka
Center Coordinator-Inter University Chemistry Quiz Competition & Chemistry Olympiad 2018-2019 organized by the Institute of Chemistry, Ceylon.
Visiting Research Scientist, Department of Chemistry, University of British Columbia, Vancouver, Canada (2012-2016). Prof. Raymond Andersen Group-Marine natural products research laboratory and Prof. Katherine Ryan Group-Biosynthetic enzyme laboratory
University Level
Member of the University Curriculum Development Committee July 2023-to date
Member of the Examination Manual Preparation Committee 2023
Chairperson, Board of Study/Life Sciences, Faculty of Applied Sciences, Uva Wellassa University. August 2020 to-date.
Chairperson, Faculty Higher Degrees Committee, Faculty of Applied Sciences, Uva Wellassa University. August 2019-August 2021
Secretary, Higher Degrees Committee, Faculty of Applied Sciences, Uva Wellassa University. August 2018- August 2019
Chairperson, Housing Committee of Uva Wellassa University, Badulla. March 2019-February 2021
Coordinator of the proposed BSc. external degree programme, Department of Science and Technology, Faculty of Applied Sciences, Uva Wellassa University.
Coordinator of the proposed BSc ‘Biorprocess Engineering’ degree programme, Department of Science and Technology, Faculty of Applied Sciences, Uva Wellassa University.
Activity Coordinator (Activity 03) of the AHEAD Faculty Development Project of 120 Million, Uva Wellassa University from 2019-2022
Student Counsellor (Utilities and Logistical Support) from 01st October 2016- 30th September 2017
Academic representative for Centre for Gender Equity/Equality 01st November 2016- 31st October 2017
Member of the working committee of University Industry Coordination Cell 07th October 2016-06th October 2017.
Track/Theme Coordinator of the ‘Bioprocess Track’ International Research Symposium of Uva Wellassa University (IRSUWU) 2016-2018 (for 3 consecutive years)
Memberships
Awards
