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Prof. Sanath Hettiarachchi

Professor of Biological Sciences

sanath@as.rjt.ac.lk
+94771101501

Education

  • Ph.D. in Microbiology – Vrije Universiteit, Brussels, Belgium (1990)
  • M.Sc. in Molecular Biology – Vrije Universiteit, Brussels, Belgium (1986)
  • B.Sc (Special) in Botany – University of Kelaniya, Sri Lanka (1981)

Research Interests

  • Dairy microbiology
  • Rhizosphere microbiology
  • Mangrove ecology
  • Biological control of plant diseases

Teaching Courses

  • BOT 2204 – Plant Pathology
  • MIB 3202 – Soil Microbiology
  • MIB 4204 – Microbial Taxonomy
  • MIB 3205 – Plant- Microbe Intercations
  • MIB 3206 – Analytical Techniques in Molecular Biology
  • MIB 3208 – Environmental Microbiology

Current Researches and Projects

  • Development of farmer-friendly biofertilizer
  • Antidandruff and antiacne and other herbal base cosmetic product development
  • Development of foods fortified with Omega 3 oil from fish waste

Membership in Professional Bodies

  • Member of Institute of Biology

Administrative Responsibilities

  • Deputy Proctor, Faculty of Applied Sciences, Rajarata University of Sri Lanka, From No., 2019 to date
  • Director, Internal Quality Assurance Unit, Rajarata University of Sri Lanka, From Jan., 2016 to April, 2018
  • Senior Student Counselor, Rajarata University of Sri Lanka, from 2013 to 2017
  • Head, Department of Botany, Faculty of Science, University of Ruhuna. from 01.09.2006 – 31.03.2009
  • Dean, Faculty of Science, University of Ruhuna. From March 1998 to July 1998.
  • Deputy Senior Student Counselor, University of Ruhuna. 2005/ 2006.
  • Course Coordinator, Faculty of Science, University of Ruhuna. 2001 to December 2011
  • Warden (Male), University of Ruhuna. from January 2000 to August 2001
  • Joint Secretary, Ruhuna University Science Teachers’ Association. 1992 to 1993 and 1994 to 1997

Involvements in Academic Reviewing, Writing, Editor

  • Editor in Chief : Rajarata Univetsity Journsal
  • Reviewer: Quality Assurance and Accreditation Council/ UGC from 2004 to date.
  • Reviewer: Acceleration Higher Education Expansion and Development (AHEAD) Project funded by World Bank from 2018 to date.
  • Reviewer: Higher Education for Twenty First Century (HETC) Project funded by World Bank from 2011 to 2013.
  • Reviewer: Improving Relevance and Quality of Undergraduate Education (IRQUE) project funded by World Bank from 2003 to 2009.
  • Development of curriculum in Microbiology, Molecular Biology and Biotechnology and Genetics at various levels (General degree, Special Degree, Postgraduate).
  • Editor-In-Chief, Proceedings of the Science Symposium, Faculty of Science, University of Ruhuna. 2003 and 2004
  • Editor, Proceedings of the Science Symposium, Faculty of Science, University of Ruhuna. 2005
  • Editor, Proceedings of Academic Sessions, University of Ruhuna 2003 and 2005

Publications

Publications in Journals

a) International/ Regional

  • Dissanayaka DMSK, Sammani AMP, Wijayaratne LKW,Rajapakse RHS, Hettiarachchi S and  Morrison III WR 2020. Effects of aggregation pheromone concentration and distance on the trapping of Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae) adults. Journal of Stored Products Research. 88 (2020) 101657.
  • Wasana WP and Hettiarachi S 2017. Differentiation of Pectobacterium carotovorum isolates from selected crops grown in different geographical areas of Sri Lanka and determination of their host range. Paper Proceeding of the Second Asia-Pacific Conference on Multidisciplinary Research, 29 – 30 July 2017, Colombo, Sri Lanka 93-98 pp.
  • Weerasinghe WPCG, Hettiarachi S and Jayarathne MPK. 2017. Factors affecting the quality of raw milk: Effect of time taken for transportation and practices at field level in small farms in Sri Lanka. Journal of Food and Dairy Technology. 5(1): 9-15.
  • Perera, K and Hettiarachi, S. 2016. Study on quality assurance and accreditation in general education in Sri Lanka. National Education Commission of Sri Lanka Research Series (014) No. 04 7 pp.
  • Deng S, Huang Y, He H, Tan F, Ni X, Jayatissa LP, Hettiarachi S, Shi S. 2009. Genetic diversity of Aegiceras corniculatum (Myrsinaceae) revealed by amplified fragment length polymorphism (AFLP). Aquatic Botany. 90: 275-281.
  • Jayatissa LP, Hettiarachi S and Dahdouh-Guebas F. 2006. An attempt to recover economic losses from decadal changes in two lagoon systems of Sri Lanka through a newly patented mangrove product. Environment, Development and Sustainability. 8:585-595.
  • Dahdouh-Guebas F, Hettiarachi S, Lo Seen D, Batelaan O, Sooriyarachchi, S, Jayatissa LP and Koedam N. 2005. Transitions in ancient inland freshwater resource management in Sri Lanka affect biota and human populations in and around coastal lagoons. Current Biology. 15: 579-586.
  • De Silva MPKSK and Hettiarachi S. 2002. An investigation of maternal origin of morphometrically defined Tilapia species established in Sri Lanka. Tropical Agric. Research and Extension. 4(1): 24-28.
  • Jayatissa LP, Guero MC, Hettiarachi S and Koedam N. 2002. Changes in vegetation cover and socio-economic transitions in a coastal lagoon (Kalametiya, Sri Lanka), as observed by teledetection and ground truthing, can be attributed to an upstream irrigation scheme. Environment, Development and Sustainability. 4(2): 167-183.
  • Verheyden A, Dahdouh-Guebas F, Thomaes K, De Genst W, Hettiarachi S and Koedam N. 2002. High Resolution vegetation data for mangrove research as obtained from aerial photography. Environment, Development and Sustainability. 4(2): 113-133.
  • Abeysinghe PD, Ludwig L, De Greef B, Koedam N and Hettiarachi S. 2000. Genetic and geographic variation of the mangrove tree Bruguiera in Sri Lanka. Aquatic Botany. 67: 131-141.
  • Dahdouh-Guebas F, Verheyden A, De Genst W, Hettiarachi S and Koedam N. 2000. Four decade vegetation dynamics in Sri Lankan mangroves as detected from sequential aerial photography: A case study in Galle. Bulletin of Marine Science 67(2): 741-759.
  • Abeysinghe PD, Triest L, Greef BD, Koedam N and Hettiarachi S. 1999. Genetic differentiation between Bruguiera gymnorhiza and B. sexangula in Sri Lanka. Hydrobiologia. 413: 11-16.
  • Hettiarachi S and Penninckx MJ. 1990. On the distribution of soil and rhizosphere actinomycetes in a poplar plantation. Symbiosis 6: 203-206.
  • Hettiarachi S, Gunasekara SA and BalasooriyaI. 1983. Leaf spot diseases of water hyacinth in Sri Lanka. Journal of Aquatic Plant Management. 21: 61-65.
  • Balsooriya I, Gunasekara SA, Hettiarachi S and Gunasekara IJ. 1983. Biology of water hyacinth: Fungi associated with water hyacinth in Sri Lanka. Paper presented at Internat. Symp. Water hyacinth. 7-12 Feb., 1983. Regional Research Laboratory Hyderabad, India.

b) National

  • Wasana WP, Kuruppuarachchi, KAPP, Yapa, PN and Hettiarachi, S. 2019. Antibacterial activity of selected spices against Pectobacterium carotovorum isolated from some vegetables in Sri Lanka. Journal of Science of University of Kelaniya, Sri Lanka, 10: 35-46.
  • Babu AGC, Ramanayake, RMTNN and Hettiarachi S. 2011. Characterization and virulence of Xanthomonas campestris pv campestris isolates from cruciferaceae crops in the Nuwara Eliya Disrtict of Sri Lanka. Annals of the Sri Lanka Department of Agriculture, 13: 1-11.
  • De Silva MPKSK, Liyanage NPP and Hettiarachi S. 2006. Intra-species morphological plasticity in three Puntius species in Sri Lanka. Ruhuna Science Journal. (a publication of Faculty of Science, University of Ruhuna, Sri Lanka. 1:82-95.
  • Jayatissa LP and Hettiarachi S. 2006. Nature’s protection against nature’s fury: a post tsunami assessment of non-mangrove plants as elements to build a green belt against tsunami. Ruhuna Science Journal. (a publication of Faculty of Science, University of Ruhuna, Sri Lanka) 1:96-103.
  • De Silva MPKSK, Hettiarachi S and Mather PB. 2005. Genetic structure of Oreochromis populations of selected reservoirs of Sri Lanka: a molecular approach. Proceedings of Third Science Symposium, Faculty of Science, University of Ruhuna, Sri Lanka. pp 58-68.
  • Jayatissa LP, Lo Seen D, Hettiarachi S and Senanayake G. 2005. Nature’s protection against nature’s fury: a post tsunami assessment of the importance of mangroves as a natural barrier against the wrath of the sea. Proceedings of Third Science Symposium, Faculty of Science, University of Ruhuna, Sri Lanka. pp 01-10.
  • Hettiarachi S and Jayatissa LP. 2004. Changes of the mangrove cover of Rekawa lagoon, Sri Lanka, over a 38 year period: mitigating the significance of a surface increase. Proceedings of the Second Science Symposium, Faculty of Science, University of Ruhuna, Sri Lanka. pp 49-60.

Abstracts Published

a) International/ Regional

  • Dissanayake, DMDC, Divisekera, DMWD and Hettiarachi, S. 2019. Investigation of antibacterial activity of Moringa oleifera and assessing as a potential ingredient, to increase the shelf-life of minimally processed Alternanthera sessilis (Mukunuwenna). Proceedings of Rajarata University International Conference, 6-7 Nov., 2019. 214 p.
  • Kulathunga, NU and Hettiarachi S. 2019. Antifungal activity of plant extracts against dandruff causing yeasts. Proceedings of Rajarata University International Conference, 6-7 Nov., 2019. 114 p.
  • Samarakoon, CS, Hettiarachi, S and Nagahawaththa, M. 2019. Control of fungal contamination in plant tissue culture using synthetic and natural antifungal agents. Proceedings of Rajarata University International Conference, 6-7 Nov., 2019. 228 p.
  • Wanninayaka, KT and Hettiarachi, S. 2019. Effect of root wash on Panicum maximum on the growth and development of selected crop plants. Proceedings of Rajarata University International Conference, 6-7 Nov., 2019. 233 p.
  • Weerasinghe WPCG, Hettiarachi S and Jayarathna MPK 2018. Effect of thermoduric bacteria on shelflife of milk and improvement of pasteurization process. Abstract Book. 11th International Research Conference, 13th -0 14th September, 2018. General Sir John Kotalawala Defence University. 52 p.
  • Chandrasekara PWIM and Hettiarachi S. 2017. Effect of IAA producing rhizosphere bacteria on growth and seedling vigor of host and non-host plants. Proceedings of the International Forestry and Environment Symposium 2017 of the Department of Forestry and Environmental Science, University of Sri Jayewardenepura, Sri Lanka. vol 22.
  • Gangathilaka KMSM, Chandrasekara PWIM and Hettiarachi S. 2017. The effect of Indole Acetic Acid producing rhizosphere bacteria isolated from forest soil on the seedling vigor, growth of host and non-host plants and host nutrition level of crops grown in different soils. Proceedings of the International Forestry and Environment Symposium 2017 of the Department of Forestry and Environmental Science, University of Sri Jayewardenepura, Sri Lanka. 22:109 p.
  • Weerasinghe WPCG, Hettiarachi S and Jayarathna MPK 2017. Isolation of bacteriophages from starter cultures of yoghurt in Milco dairy factory and formulation of a phage resistant starter culture. Abstract Book, International Conference of Food Quality, Safety and Security 2017, University of Sri jayawardenapura, Sri Lanka, 4-5 Oct. 2017. pp. 08
  • Dahdouh-Guebas F, Jayatissa LP, Hettiarachi S, Bosire JO, Kairo JG and Koedam N. 2012. Meeting on Mangrove ecology, functioning and Management (MMM3): more than two decades of insight on mangrove research in Kenya, Sri Lanka and beyond, in: Dahdouh-Guebas, F. et al. (Ed.) (2012). Proceedings of the International Conference ‘Meeting on Mangrove ecology, functioning and Management – MMM3’, Galle, Sri Lanka, 2-6 July 2012. VLIZ Special Publication, 57: pp. 24-25
  • Rans G, Jayatissa LP, Hettiarachi S, Koedam N and Dahdouh-Guebas F. 2012. Investigation of possible bioshields to protect vulnerable sections of the Sri Lankan coast. Proceedings of the International Conference ‘Meeting on Mangrove ecology, functioning and Management – MMM3’, Galle, Sri Lanka, 2-6 July 2012. VLIZ Special Publication, 57: pp. 148.
  • Ransara GBM, Kodikara KAS, Jayatissa LP, Hettiarachi S, Vinobaba P, Koedam N and Dahdouh-Guebas F. 2012. Evaluating the local use of mangroves as source firewood in Sri Lanka, In: Dahdouh-Guebas, F. et al. (Ed.) (2012). Proceedings of the International Conference ‘Meeting on Mangrove ecology, functioning and Management – MMM3’, Galle, Sri Lanka, 2-6 July 2012. VLIZ Special Publication, 57: pp. 149
  • Dahdouh-Guebas F, Jayatissa LP, Hettiarachi S, Bosire JO, Kairo JG, and Koedam N. 2012. Meeting on Mangrove ecology, functioning and Management (MMM3): more than two decades of insight on mangrove research in Kenya, Sri Lanka and beyond. Proceedings of the International Conference ‘Meeting on Mangrove ecology, functioning and Management – MMM3’, Galle, Sri Lanka, 2-6 July 2012. VLIZ Special Publication, 57: pp. 24-25.
  • Rans G, Jayatissa LP, Hettiarachi S, Koedam N and Dahdouh-Guebas F. 2011. Investigating efficiency of greenbelts for the protection of Sri Lanka’s coasts against ocean wave surges. VLIZ Young Scientists’ Day, Brugge, Belgium 25 February 2011: book of abstracts. VLIZ Special Publication, 48: pp. 69.
  • Hettiarachi S and Hettiarachchi PL. 2010. Propagation of threatened mangroves and mangrove associates. The national Conference on Identification of Knowledge Gaps for Sustainable Management of Mangrove Ecosystems in Sri Lanka. Green Dyke Project, University of Ruhuna, Matara, Sri Lanka. 4th- 6th June, 2010. 2-3pp.
  • Jaytissa LP and Hettiarachi S. 2007. Are all the mangroves equally important in mitigating the impact of tsunami? International Conference on Coastal Zone Environment and Sustainable Development: Vulnerability, Adaptation and Beyond. 12-14 February, 2007. School of Environmental Sciences, JawaharlalNehruUniversity, New Delhi. 71 p.
  • Dahdouh-Guebas F, Hettiarachchi S, Sooriyarachchi S, Lo Seen D, Batelaan O, Jayatissa LP and Koedam N. 2005. Cryptic ecological degradation in Sri Lankan lagoons: loss of species, loss of function, loss of human lives. 3rd GBIF Science Symposium on ‘Tropical Biodiversity: Science, Data, Conservation’, 18-19 April, Brussels, Belgium.
  • Jayatissa LP, Hettiarachi S and Lo Seen D. 2004. Possible recovery from economic loss induced by decadal changes in two lagoons ecosystems of Sri Lanka, through a patented mangrove product. International conference on biogeochemistry of estuaries–Mangroves and the coastal zone management. ENVIS Centre in Biogeochemistry, JawaharlalNehruUniversity, India.14 p.
  • Abeysignghe PD, Ludwig T, De Greef B, Koedam N and Hettiarachi S. 1998. Genetic Diversity within and among populations of the mangrove tree Bruguiera in Sri Lanka. European Scientific Meeting on Ecological Genetics, Isolation by Distance. 2-3 Feb., 1998. Katholieke Universiteit Leuven, Belgium. 13 p.
  • Dahdouh-Guebas F, Verheyden A, Hettiarachi S and Koedam N. 1997. Natural regeneration of mangroves in a distributed site in Sri Lanka-a case study in Galle. Symposium on mangrove ecosystems: Biodiversity, functioning restoration and management, Toulouse, France.
  • Koedam N, Dahdouh-Guebas F, De Bondt R, Thomaes K, Kairo JC, Hettiarachi S and Van Speybroeck D. 1997. Mangrove vegetation dyanamics: How to look into the past? Abstracts, International Seminar on Mangroves. 25-27 March, 1997. AndhraUniversity, Waltair, India. 68 p.
  • Koedam N, Ladavid G, Dahdouh-Guebas F, Matthijs S, Hettiarachi S and Van Spebroeck D. 1997. Can soil redox state in mangrove explain mangrove vegetation structure? Abstracts, International Seminar on Mangroves. 25-27 March, 1997. AndhraUniversity, Waltair, India. 22 p.
  • Verheyden A, Dahdouh-Guebas F, Thomaes K, Hettiarachi S and Koedam N. 1997. Vegetation dyanamics in Sri Lanka mangroves as detected from aerial photography. Symposium on mangrove ecosystems: Biodiversity, functioning restoration and management, Toulouse, France.
  • Cornelis P, Hettiarachi S, Muunga X, Muyanga S, Thys M and Koedam N. 1990. Disease suppression by Pseudomonas in Cicer-Fusarium system. (Abstract) Physiologia Plantarum. 79: A102.
  • Hettiarachi S and Penninckx MJ. 1990. Soil and rhizosphere associated microflora of a poplar plantation. Symposium on Stress- and Development Physiology, WFP-NFWO. Vrije Universiteit Brussel, Belgium. 35 p.
  • Hettiarachi S and Penninckx MJ 1989. A study of soil and rhizosphere associated microflora of a poplar plantation. 35th Meeting of the Societe Francaise de Phytopa-thologie- Rhizosphere. 28th-29th September, 1989, Montpellier, France. 68 p.
  • Woitchik A-F, Hettiarachi S and Penninckx MJ. 1989. Nitrogen fixing bacteria of the rhizosphere of poplars. (Abstract) Internat. Conf. Fast Growing Trees. 8-12 Oct., 1989. PhillipsUniversity, Marburg. 278-279 pp.

b) National

  • Dilrukshi MKCB , Hettiarachi S and Edirisinghe EMRKB 2017. Determination of in vitro antimicrobial activity of selected marine sponges found in Sri lanka. 10th International Research Conference, General Sir John Kotelawala Defence University, 3rd – 4th 2017. 29 p
  • Dayarathna PHSA and Hettiarachi S. 2014. Screening of curd samples from Sri Lanka for quality and assessing strains of lactic acid bacteria for formulationg a standard curd starter culture. Proceedings on 2nd International Symposium on Driving Research Towards Economy: Oppertunities and Challenges, Nov. 13-14, 2014. 51 p.
  • Buddhika UAV, Gunasekare MTK, Hettiarachi S, Ranatunga MAB and Hemamali KKUG. 2009. Preliminary study of the segregating pattern of anthocyanin pigmentation as a marker to facilitate tea breeding. Sixth Sessions of University of Ruhuna. A1-03 p.
  • Bandara MMNDM, Hettiarachi S, Premakumara GAS, Ranasighe P andAbeysinghe S. 2009. Molecular identification of yeast starins in three different “Arishta”. Sixth Sessions of University of Ruhuna. A1-04 p.
  • Hettiarachchci PL, Dharmadasa R, Premakumara GAS, Hettiarachi S and Perera AMMS. 2007. A preliminary study on the taxonomic status of Munronia pinnata (Wall.) heob. (Meliaceae) in Sri Lanka. 27th Annual Sessions of Institute of Biology, Sri Lanka.
  • Jayatissa LP, Hettiarachi S and Samarakoon SP. 2005. Did maritime vegetation protect lives and properties in Sri Lankan coasts against Tsunami? Workshop on impact of the Tsunami and post-tsunami recovery in the southern region of Sri Lanka, 26.04.2005, University of Ruhuna, Sri Lanka, 21 p.
  • Hettiarachi S, Sooriyaarchchi S, Lo Seen D, Sumanawathie SL and Jayatissa LP. 2003. Attributing the changes of the mangrove cover at Kalametiya to increased freshwater inflow over a few decades. 59th Annual Session of the Sri Lanka Association of Advancement of Science, 9th-13th December 2003. 153 p.
  • Hettiarachi S, Sooriyaarchchi S, Jayatissa LP and Lo Seen D. 2003. Upstream irrigation schemes as possible sources for changes of the mangrove cover of Kahandamodara, Kalametiya and Rekawa lagoons of southern Sri Lanka. 59th Annual Session of the Sri Lanka Association of Advancement of Science, 9th-3th December 2003. 154 p.
  • Samayawardena LA, Hettiarachi S, Jayatissa LP and Bogahawatte CNL. 2003. Habitats characteristics are key factors that determine faunal group dynamics in Rekawa mangrove ecosystem and its environs: A study from Rekawa, Sri Lanka. International conference on conservation of wetlands. Conflict or compromise. 17th & 18th January, 2003, University of Moratuwa.
  • Abeysinghe PD, Nilanthi R, Hettiarachi S, Jayatissa LP and Dahdouh-Guebas F. 2002. Morphological and molecular characterization of a distinct Rhizophora individual from Chilaw lagoon in Sri Lanka. 58th Annual Session of the Sri Lanka Association of Advancement of Science, 2nd-07th December 2002. 184 p.
  • Hettiarachchi PL, Premathilake PAGW and Hettiarachi S. 2002. Vegetative propagation of Scyphiphora hydrophyllaceae Gaertn F. for conservation. Forestry and Environment Symposium 2002, Sri Lanka. 10-11 p.
  • Hettiarachchi PL, Premathilake PAGW, Hettiarachi S and Jayatissa LP. 2002. Vegetative propagation of Lumnitzera littorea (Jack) Voigt. by stem cuttings, girdle cuttings and air layering. 58th Annual Session of the Sri Lanka Association of Advancement of Science, 2nd-07th December 2002. 54 p.
  • Hettiarachi S, Jayatissa LP and Lo Seen D. 2002. Does the increase of the mangrove cover of Rekawa lagoon accompany economic value of resource? 58thAnnual Session of the Sri Lanka Association of Advancement of Science, 02nd -07th December 2002. 183 p.
  • Hettiarachi S, Singappuli MS, Jayatissa LP and Silva EIL. 2002. Primary producti-vity of sea-grasses in Rekawa, an estuarine lagoon. 58th Annual Session of the Sri Lanka Association of Advancement of Science, 2nd-07th December 2002. 186 p.
  • Jayatisaa LP Singappuli MS Silva EIL and Hettiarachi S. 2002. Species composition, distribution and biomass of sea-grasses in Rekawa lagoon. 58th Annual Session of the Sri Lanka Association of Advancement of Science, 2nd-07th December 2002. 185 p.
  • Hettiarachi S, Gunawardana RM and Koedam N. 1998. The sensitivity of three chilli (Capsicum annum L.) varieties to two major nursery killers. 54th Annual Sessions of Sri Lanka Association of Advancement of Science, Dec., 1998.189-190 pp.
  • Hettiarachi S and Gunaratne DN. 1997a. Isolation of a new Rhizoctonia solani causing chilli die-back and evaluation of its virulence. 53rd Annual Sessions of the Sri Lanka Association of Advancement of Science, 8th-12th December 1997. 272 p.
  • Hettiarachi S and Gunaratne DN. 1997b. Management of die-back disease of Chilli (Capsicum annuum L.) with rhizozphere bacteria. 53rd Annual Sessions of the Sri Lanka Association of Advancement of Science, 8th-12th December 1997. 274 p.
  • Hettiarachi S, Gunawardana RM and Koedam N. 1997a. Control of major nursery pathogens of chilli (Capsicum annuum L.) with rhozosphere bacteria. 53rd Annual Sessions of the Sri Lanka Association of Advancement of Science, 8th-12th December 1997. 273 p.
  • Hettiarachi S, Gunawardana RM and Koedam N. 1997b. Suppression of major nursery killers of chilli (Capsicum annum L.) with rizosphere bacteria. 53rd Annual Sessions of the Sri Lanka Association of Advancement of Science, 8th-12th December 1997. 270 p.
  • Hettiarachi S, Gunawardana RM and Koedam N. 1997c. The effects of rhizosphere bacteria on seed germination and root and shoot length of seedlings of chilli cultivars. 53rd Annual Sessions of the Sri Lanka Association of Advancement of Science, 8th-12th December, 1997. 271 p.
  • Hettiarachi S, Jayatissa LP and Hemamali KKGU. 1997. Use of RAPD analysis for genetic variability of Nypa fruticans in Sri Lanka. 53rd Annual Sessions of the Sri Lanka Association of Advancement of Science, 8th-12th December, 1997. 221 p.
  • Hettiarachi S, Abeywickrama S and Pathirana R 1996a. Possible mechanisms of action of two antagonists in in vitro suppression of sesame damping-off pathogen – Rhizoctonia solani. 52nd Annual Sessions of Sri Lanka Association of Advancement of Science. 138 p.
  • Hettiarachi S, Abeywickrama S and Pathirana R. 1996b. Rhizosphere microflora of Sesamum indicum L. in relation to variety and plant age. 52nd Annual Sessions of Sri Lanka Association of Advancement of Science. 139 p.
  • Hettiarachi S and Gunaratne DN. 1996. A comparison of pathogenecity of two chilli anthracnose pathogens. 52nd Annual Sessions of Sri Lanka Association of Advancement of Science. 148 p.
  • Hettiarachi S and Gunawardana RM. 1996a. Biological control of minor pathogens of chilli (Capsicum annuum L.). 52nd Annual Sessions of Sri Lanka Association of Advancement of Science. 136 p.32
  • Hettiarachi S and Gunawardana RM. 1996b. Two pathogenic Pseudomonas fluorescens strains acting together causing chilli wilt. 52nd Annual Sessions of Sri Lanka Association of Advancement of Science. 137 p.

Posters Presented at Scientific Meetings

  • Wickramasinghe, W.A.A.D.L, Mubiana, V.K., Blust, R., Hettiarachi, S., and Jayatissa, L. P. (2009). Comparative study of primary productivity of marine macro algae from Sri Lanka: any possible link to metal pollution? Proceedings of the symposium on African Botany in Brussles. Universite Libre de Bruxelles / Vrije Universiteit Brussels. 27th March, 2009. p112
  • Abeysinghe PD, Triest L, De Greef B, Koedam N and Hettiarachi S. 1998. Genetic diversity within and among populations of the mangrove tree Bruguiera in Sri Lanka. European scientific meeting on ecological genetics: isolation by distance 2-3 Feb., 1998. Katholieke Universiteit Leuven, Belgium.
  • Verheyden A, Dahdouh-Guebas F, Thomaes K, Hettiarachi S and Koedam N. 1997. Vegetation dyanamics in Sri Lanka mangroves as detected from aerial photography. Symposium on mangrove ecosystems: Biodiversity, functioning restoration and management, Toulouse, France.
  • Dahdouh-Guebas F, Verheyden A, Hettiarachi S and Koedam N. 1997. Natural regeneration of mangroves in a distributed site in Sri Lanka-a case study in Galle. Symposium on mangrove ecosystems: Biodiversity, functioning restoration and management, Toulouse, France.

Chapters in Books

  • Dayarathna PHSA and Hettiarachi S. 2017. Microbial inoculation of soil for improving crop yield: a reality? In: Gloria Scientiam – Golden Jubilee Commemorative Volume, MJS Wijerathne and WU. Chandrasekara (eds.), 11-29 pp.
  • Hettiarachi S and Hettiarachchi PL. 2014. Biotechnologies for Increasing Antioxidant Production from Plants. In: NK Dubey (ed.) Plants as a Source of Natural Antioxidants. CAB International Press, UK. 156-168 pp.
  • Hettiarachi S. and Hettiarachchi PL. 2011. Botanicals in Biocontrol and Applicability of Bioprocessing for their Production. In: M-T Liong (ed) Bioprocess Sciences and Technology. Nova Science Publishers (New York, USA). 359-380 pp.
  • Hettiarachi S. 2010. Biotechnology: A Tool for Natural Product Synthesis. In: NK. Dubey (ed) Natural products in plant pest management. CAB International Press, UK. 263-279 pp.
  • හෙට්ටිආරච්චි එස්, කොඩිකාර එස්, ජයතිස්ස එල්. පී. 2010 කඩොලාන සහ කරදිය වගුරු ශාක. එල්. පී. ජයතිස්ස (සංස්කාරක ) ප්‍රජා මූලික වෙරළ සම්පත් කළමණාකරණය සඳහා පුහුණුකරුවන්ගේ අත්පොත, සේවා ලංකා පදනම. ශ්‍රී ලංකාව. පිටු 28-41.