AddressIcon School of Food Science and TechnologyDahlia


phone_icon_by_cemagraphics +609-668 4988

grey_new_seo2-17-256 Plant pathogenic fungi and plant disease diagnosis


2015 Ph.D University of Hertfordshire (Microbiology)

2007 M.Sc Universiti Sains Malaysia (Plant Pathology)

2004 BSc. (Hons) Universiti Sains Malaysia Applied Biology (Agrobiology)


Dahlia is a plant pathologist with expertise in the area of fungal pathology and plant disease control. She is a lecturer in the School of Food Science and Technology within the Crop Science Subject Group. Dahlia’s teaching specialisms include plant pathology, crop protection and organic farming. She had developed her interest in plant diseases when she pursued her MSc by doing research on Fusarium species focusing on the tropical plant diseases. In 2011, she continued her study and developed more understanding of plant disease management by joining the CEP group (Crop and Environmental Protection Group) from University of Hertfordshire. She had spending most of her time in the autumn and summer at the field in Rothamsted Research, Harpenden and several other field sites in the UK which she found those experience provide an ideal opportunity to integrate her research into undergraduate teaching. Now, she actives with silicon group to understand silicon and biotic stress in suppressing plant diseases. She also enjoys being in the island especially Chagar Hutang, Redang island where she dedicates herself in helping the turtle research work as her part of conservation contribution. Her interest of Fusarium expands by looking at the infection of this soil-borne fungus on the turtle eggs that may threaten the precious endangered species of turtle in Malaysia. Dahlia is a member of the Malaysian Society for Microbiology (MSM), British Society of Plant Pathology (BSPP), The International Society for Silicon in Agriculture and Related Disciplines (ISSAG) and International Sea Turtle Society (ISTS). Dahlia is passionate about microbiology and she welcome any enquiries from external organizations, NGOs, schools especially in giving talks or seminars on her plant pathology work or turtle!

Research  Interests

My research focus on plant disease diagnosis and etiology, pathogen identification, pathogenicity and disease control management with special reference to Fusarium, Colletotrichum, Aspergillus and Leptosphaeria species.

Selected Publications

Ngadin, A.A., Geri C., Shepley, M., Nurul Faziha, I. and Mohamed Sidique, S.N. (2018). Importance of Soil Microbes for Vulnerable Rafflesia tuan-mudae Becc. (Rafflesiaceae) in Gunung Gading National Park, Sarawak, Malaysia. 70(2): 157-160. [Mnj]

G.K. Mitrousia, Y.J. Huang, A. Qi, S.N.M. Sidique and B.D.L. Fitt. (2018). Effectiveness of Rlm7 resistance against Leptosphaeria maculans (phomastem canker) in UK winter oilseed rape cultivars. Plant Pathology,

Huang Y.J., Mitrousia G.K., Sidique S.N.M., Qi A., Fitt B.D.L. (2018). Combining R gene and quantitative resistance increases effectiveness of cultivar resistance against Leptosphaeria maculans in Brassica napus in different environments. PLoS ONE 13(5): e0197752.

Siti Nordahliawate Mohamed Sidique, Nurul Farizah Azuddin and Juanita Joseph. (2017). First Report of Fusarium Species at Nesting Sites of Endangered Sea Turtles in Terengganu and Melaka, Malaysia. Malaysian Applied Biology, 46(3): 195–205. (mabjournal)

Suhaizan Lob, Mohammad Nurazri Mohd Aris, Siti Nordahliawate Mohamed Sidique, Nurul Faziha Ibrahim and Xiaolei Jin. (2017). Growth Development and Natural Infection Incidence of Tobacco Mosaic Virus (TMV) on Silicon-Treated Chilli (Capsicum annuum L.) Cultivated in Commercial Soil. Malaysian Applied Biology, 46(3): 221–226. (mabjournal)

Nur Azlin, A., Shuhada, Z., Najwa, J., Xiaolei Jin and Siti Nordahliawate M. Sidique. (2017). Soluble Silicon (Si) as Potential Treatment of Post Harvest Decay Caused by Fusarium proliferatum. Malaysian Applied Biology, 46(3): 233–238. (mabjournal)

Nur Ain Izzati, M.Z., Mohd Aizat, Z., Siti Nordahliawate, M.S. and Mat Rasid, I. (2014). Morphological and Genetic Variabilities of Fusarium Species Isolated from Kenaf, Malaysian Applied Biology, 43(1): 13-21.

Aiming Qi, Yong-Ju Huang, Martin Malcolm-Brown, Siti Nordahliawate M. Sidique and Bruce D.L. Fitt. (2014). Predicting timing of release of ascospores of Leptosphaeria spp. to improve control of phoma stem canker on oilseed rape in the UK. Aspects of Applied Biology, 125: 109-116

Siti Nordahliawate M Sidique, Yong-Ju Huang, Avice M Hall and Bruce D L Fitt. (2012). Maturation of Leptosphaeria maculans and L. biglobosa pseudothecia and first appearance of phoma leaf spots on winter oilseed rape. Aspects of Applied Biology, 117: 209-215 (Abstract)

Siti Nordahliawate Mohamed Sidique, Nur Ain Izzati Mohd Zainudin, Nur Azlin Azhari and Baharuddin Salleh. (2012) Diversity of Fusarium species isolated from soil cultivated with cucurbits within East Coast, Peninsular Malaysia.Pertanika Journal of Tropical Agricultural and Sciences, 35 (2): 381-386. (PDF)

Mohd Zainudin Nur Ain Izzati, Abd Razak Azmi, Mohamed Sidique Siti Nordahliawate and Johari Norazlina. (2011). Contribution to the Knowledge of Diversity of Fusarium Associated with Maize in Malaysia.Plant Protection Science, 47 (1): 20-24. (Abstract)

Nur Ain Izzati Mohd Zainudin, Siti Nordahliawate Mohamed Sidique, Nor Azlina Johari, Darnetty, Azmi Abd. Razak and Baharuddin Salleh. (2011). Isolation and Identification of Fusarium Species Associated with Fusarium Ear Rot Disease of Corn, Pertanika J. Trop. Agric. Sci., 34 (2): 325-330. (PDF)

Nur Ain Izzati, M.Z., Siti Nordahliawate, M.S., NorAzliza, I. and Salleh, B. (2009). Distribution and Diversity of Fusarium Species Associated with Grasses in Ten States throughout Peninsular Malaysia, Biotropia, Vol 16(2): 55-64. (Article)

Azmi, A. R., Nur Ain Izzati, M. Z., Siti Nordahliawate, M. S., Nor Azliza, I., Nik Mohd Izham, M. N. and Salleh, B. (2009). Sheath Brown Rot Disease of Rice Caused by Pseudomonas fuscovaginae in the Peninsular Malaysia.Journal of Plant Protection Research, 49(3): 256-261.

Nur Ain Izzati, M. Z., Nor Azliza, I, Nik Mohd Izham, M. N., Azmi, A. R., Siti Nordahliawate, M. S. and Salleh, B. (2009). Nitrate Non-utilizing Mutants and Vegetative Compatibility Groups of Fusarium proliferatum and F. sacchari Isolated from Rice in the Peninsular Malaysia and Kalimantan, Indonesia. Journal of Plant Protection Research, 49(2): 229-235. (Article)

Nur Ain Izzati, M. Z., Siti Nordahliawate, M. S., and Salleh, B. (2008). Genetic diversity of Fusarium fujikuroi isolated from bakanae disease of rice on the basis of vegetative compatibility.Journal of Tropical Agricultural and Sciences, 31(2): 271-278. (Article)

Nur Ain Izzati, M. Z., Siti Nordahliawate, M. S., and Salleh, B. (2008). Fusarium verticillioides from Rice in Malaysia and Indonesia: Morphological Characteristics, Nitrate Nonutilizing Mutants and Vegetative Compatibility Groups.Science Putra, 16(1): 10-20.

Siti Nordahliawate, M.S., Nur Ain Izzati, M.Z., Azmi, A.R., and Salleh, B. (2008). Distribution, Morphological Characterization and Pathogenicity of Fusarium sacchari Associated with PokkahBoeng Disease of Sugarcane in Peninsular Malaysia. Journal of Tropical Agricultural and Sciences, 31(2): 279-286. (Article)


Siti Nordahliawate Mohamed Sidique, Andrew A. Ngadin, Nurul Faziha Ibrahim and Juanita Joseph. 2016. Fusarium species associated with infected sea turtle eggs in Chagar Hutang, Redang Island. The 6th Annual International Conference (AIC 2016), 4-6 October 2016, Universitas Syiah Kuala, Banda Acheh, Indonesia.

Nur Azlin Azhari, Siti Nordahliawate Mohamed Sidique and Nur Ain Izzati Mohd Zainuddin. (2013). Virulence assay of Fusarium species associated with Fusarium fruit rot disease in watermelon, Fundamental Science Congress 2013, 20/08/2013 – 21/08/2013.

M.S. Siti Nordahliawate, K.R.N. Reddy, S.B. Nurdijati and B. Salleh. (2010). Potential of aqueous medicinal plant extracts on reduction of aflatoxin B1 and citrinin contamination in food grains., Proceeding of the International Mycotoxin Conference MycoRed 2010, Penang Malaysia., 01/12/2010 – 04/12/2010, Park Royal Hotel, Penang.

Roshita Ibrahim, Siti Nordahliawate Mohd Sidique and Nik Aisyah Nik Muhammad. (2010). Effect of Palm Oil Mill Sludge Cake (POMSC) enriched BRIS soils on the postharvest quality of pumpkin (Cucurbita maxima L.), Proceeding of the 11th Symposium for the Malaysian Society of Applied Biology,, 13/06/2010 – 15/06/2010, Grand Riverview Hotel, Kelantan.

Siti Nordahliawate M.S., NurAzlin, A., Nur Ain Izzati, M.Z. and Baharuddin, S. (2010). Study on Fusarium Fruit Rot Disease Severity in Cucurbits caused by Fusarium solani., Proceeding of the 11th Symposium for the Malaysian Society of Applied Biology, 13/06/2010 – 15/06/2010, Grand Riverview Hotel, Kelantan.


Title: “Mikrofungi di Kawasan Persarangan Penyu” p.26


Martin Chaillot

Interns from France

(April – August 2017)

Relations between environmental factors and unhatched green turtle eggs (Chelonia mydas) caused by Fusarium species.



Nur Izzah Akmal Bt Ramley

Interns from Malaysia (February – May 2017) Understanding silicon uptake on melon plant growth and development by root application and foliar spraying.


Kathryn Baker Hegarty


Interns from USA (October 2017 – now) Assessment of unhatched turtle eggs of green turtle (Chelonia mydas) caused by Fusarium species at Chagar Hutang, Redang island to confirm of risky nesting areas.