A
PROFILE
Laman Web Staf UPM
PROF. MADYA DR. LEONG SUI SIEN
PROFESOR MADYA
FAKULTI SAINS PERTANIAN DAN PERHUTANAN
leongsuisien@upm.edu.my
Laman Web UPM
PROFILE
leongsuisien
BM
EN

PROFESIONAL

NAMA :
(Prof. Madya Dr.) LEONG SUI SIEN
JAWATAN :
PROFESOR MADYA
PTJ :
FAKULTI SAINS PERTANIAN DAN PERHUTANAN

BIDANG PENYELIAAN
BACTERIOLOGY / ENVIRONMENTAL BIOTECHNOLOGY / MICROBIAL BIOTECHNOLOGY / MICROBIOLOGY / MOLECULAR BIOTECHNOLOGY
PENDIDIKAN
PHD IN MOLECULAR BIOLOGY (MICROBIOLOGY)
UNIVERSITI MALAYSIA SARAWAK, KUCHING, SARAWAK
Graduated : 2015
BACHELOR DEGREE OF BIOMEDICAL SCIENCE (FIRST CLASS HONOURS)
UNIVERSITI PUTRA MALAYSIA, SERDANG, SELANGOR
Graduated : 2011
PENERBITAN BUKU
PENERBITAN JOURNAL
1. Distribution and Prevalence of Chloramphenicol-Resistance Gene in Escherichia coli Isolated from Aquaculture and Other Environment.
    Journal type: Citation-Indexed - Scopus
2. Isolation and Characterization of Antibiotic Resistant Bacteria from Swiftlet Feces in Swiftlet Farm Houses in Sarawak, Malaysia.
    Journal type: Non Citation-Indexed
3. Identification and characterization of airborne bacteria inside the swiftlet houses in Sarawak, Malaysia
    Journal type: Other Abstracting / Indexing Bodies
4. Distribution patterns of Diaphorina citri Kuwayama (Hemiptera: Psyllidae) eggs, nymphs and adults in a Malaysian citrus orchard
    Journal type: Other Abstracting / Indexing Bodies
5. Microbiological and Physicochemical Water Quality Assessments of River Water in an Industrial Region of the Northwest Coast of Borneo
    Journal type: Citation-Indexed Journal - Science Citation Index (JCR)
6. Biorisk Assessment of Antibiotic Resistant Pathogenic Bacteria Isolated from Swiftlet houses in Sarawak
    Journal type: Citation-Indexed - Scopus
7. Dispersion pattern and sampling plan for Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Psyllidae) in a citrus orchard
    Journal type: Citation-Indexed - Scopus
8. Detection of Lactic Acid Bacteria (LAB) from Local Breed Chicken Gut as Probiotic Agent in Livestock
    Journal type: Other Abstracting / Indexing Bodies
9. Virulence Genes Detection among the Antibiotic Resistant Enterococcus faecalis Isolated from Bird Industry in Borneo.
    Journal type: Citation-Indexed - Scopus
10. In vivo Fecundity Evaluation of Phaleria macrocarpa Extract Supplementation in Male Adult Rats
    Journal type: Citation-Indexed - Scopus
11. Enrichment of Artemia with Synbiotic and its Effects on Growth Nutrient Utilization Survival and Gut Microbial Communities of Larval Hybrid Catfish (Clarias microstomus × Clarias gariepinus)
    Journal type: Citation-Indexed Journal - Science Citation Index (JCR)
12. Genotypic profiles of virulent genes detected among the Enterococcus faecalis, Escherichia coli, Pseudomonas aeruginosa isolated from swiftlets in Borneo
    Journal type: Citation-Indexed - Scopus
13. Incidence and spread of Huanglongbing in relation to the distribution and fluctuations of Diaphorina citri Kuwayama (Hemiptera: Psyllidae) population in a citrus orchard
    Journal type: Citation-Indexed - Scopus
14. In Vitro Bioassay of Purpureocillium lilacinum and Bacillus thuringiensis for Control of Meloidogyne incognita on Black Pepper (Piper nigrum L.) in Sarawak, Malaysia, Northern Borneo
    Journal type: Citation-Indexed Journal - Science Citation Index (JCR)
15. Plasmid-Mediated Antibiotic Resistant Escherichia coli in Sarawak Rivers and Aquaculture Farms, Northwest of Borneo.
    Journal type: Citation-Indexed Journal - Science Citation Index (JCR)
16. Effect of Horticultural Mineral Oil on Huanglongbing Transmission by Diaphorina citri Kuwayama (Hemiptera: Psyllidae) Population in a Commercial Citrus Orchard in Sarawak, Malaysia, Northern Borneo
    Journal type: Citation-Indexed Journal - Science Citation Index (JCR)
17. Prevalence of chloramphenicol-resistant gene in Escherichia coli from water sources in aquaculture farms and rivers of Kuching, Northwestern Borneo
    Journal type: Citation-Indexed - Scopus
18. Banana (Musa acuminata), Orange (Citrus reticulata), and Watermelon (Citrullus lanatus) Peels as Prebiotic
    Journal type: MYCITE
19. Integrated Pest Management Strategies for Asian Citrus Psyllid Diaphorina citri Kuwayama (Hemiptera: Psyllidae) and Huanglongbing in Citrus for Sarawak, East Malaysia, Borneo
    Journal type: Citation-Indexed Journal - Science Citation Index (JCR)
20. In vitro antimicrobial efficacy of Cassia alata (Linn.) leaves, stem, and root extracts against cellulitis causative agent Staphylococcus aureus
    Journal type: Citation-Indexed Journal - Science Citation Index (JCR)
21. Bacillus cereus: A review of “fried rice syndrome” causative agents
    Journal type: Citation-Indexed Journal - Science Citation Index (JCR)
22. CURRENT PROBIOTICS APPLICATION FOR AQUACULTURE FEED: A REVIEW
    Journal type: MYCITE
23. Enzymatic Screening and Genotypic Characterization of Thermophilic Bacteria from the Hot Springs of Sarawak, Malaysia
    Journal type: Citation-Indexed - Scopus
24. Systematic Review of Emerging Trends in Soil-Based Probiotic
    Journal type: Citation-Indexed - Scopus
25. Dataset for the near-complete hybrid genome assembly of Citrobacter werkmanii UPMLSS01 isolated from Borneo river and insights into its native antibiotic resistance repertoire
    Journal type: Citation-Indexed - Scopus
PENERBITAN
2025
Dataset for the near-complete hybrid genome assembly of Citrobacter werkmanii UPMLSS01 isolated from Borneo river and insights into its native antibiotic resistance repertoire
2025
Enrichment of Artemia with Synbiotic and its Effects on Growth Nutrient Utilization Survival and Gut Microbial Communities of Larval Hybrid Catfish (Clarias microstomus Clarias gariepinus)
2024
Systematic Review of Emerging Trends in Soil-Based Probiotic
2023
Bacillus cereus: A review of fried rice syndrome causative agents
2023
Prevalence and Diversity of Antibiotic Resistance Heterotrophic Bacteria Found Along the Bintulu Rivers, Sarawak
2023
Enzymatic Screening and Genotypic Characterization of Thermophilic Bacteria from the Hot Springs of Sarawak, Malaysia
2023
In vitro antimicrobial efficacy of Cassia alata (Linn.) leaves, stem, and root extracts against cellulitis causative agent Staphylococcus aureus
2022
Integrated Pest Management Strategies for Asian Citrus Psyllid Diaphorina citri Kuwayama (Hemiptera: Psyllidae) and Huanglongbing in Citrus for Sarawak, East Malaysia, Borneo
2022
Prevalence of chloramphenicol-resistant gene in Escherichia coli from water sources in aquaculture farms and rivers of Kuching, Northwestern Borneo
2021
In Vitro Bioassay of Purpureocillium lilacinum and Bacillus thuringiensis for Control of Meloidogyne incognita on Black Pepper (Piper nigrum L.) in Sarawak, Malaysia, Northern Borneo
2021
Effect of Horticultural Mineral Oil on Huanglongbing Transmission by Diaphorina citri Kuwayama (Hemiptera: Psyllidae) Population in a Commercial Citrus Orchard in Sarawak, Malaysia, Northern Borneo
2021
Plasmid-Mediated Antibiotic Resistant Escherichia coli in Sarawak Rivers and Aquaculture Farms, Northwest of Borneo.
2020
Incidence and spread of Huanglongbing in relation to the distribution and fluctuations of Diaphorina citri Kuwayama (Hemiptera: Psyllidae) population in a citrus orchard
2020
Logistic Regression Model for Predicting Microbial Growth and Antibiotic Resistance Occurrence in Swiftlet (Aerodramus fuciphagus) Faeces
2020
Detection of Lactic Acid Bacteria (LAB) from Local Breed Chicken Gut as Probiotic Agent in Livestock
2020
Virulence Genes Detection among the Antibiotic Resistant Enterococcus faecalis Isolated from Bird Industry in Borneo.
2020
Genotypic profiles of virulent genes detected among the Enterococcus faecalis, Escherichia coli, Pseudomonas aeruginosa isolated from swiftlets in Borneo
2019
Dispersion pattern and sampling plan for Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Psyllidae) in a citrus orchard
2019
In vivo Fecundity Evaluation of Phaleria macrocarpa Extract Supplementation in Male Adult Rats
2019
Biorisk Assessment of Antibiotic Resistant Pathogenic Bacteria Isolated from Swiftlet houses in Sarawak
2018
Microbiological and Physicochemical Water Quality Assessments of River Water in an Industrial Region of the Northwest Coast of Borneo
2018
Distribution patterns of Diaphorina citri Kuwayama (Hemiptera: Psyllidae) eggs, nymphs and adults in a Malaysian citrus orchard
2017
IMPACT OF ENVIRONMENTAL FACTORS ON MICROBIAL GROWTH IN SWIFTLET FAECES IN SARAWAK, MALAYSIA
2014
Distribution and Prevalence of Chloramphenicol-Resistance Gene in Escherichia coli Isolated from Aquaculture and Other Environment.
2013
Identification and characterization of airborne bacteria inside the swiftlet houses in Sarawak, Malaysia