Asmat Ahmad
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View article: Modeling of Water Surface Elevation Using MIKE 21 Based on Rupat Strait Bathymetric Data
Modeling of Water Surface Elevation Using MIKE 21 Based on Rupat Strait Bathymetric Data Open
The Rupat Strait, a strategically crucial marine channel separating Sumatra Island from Rupat Island, exhibits complex hydrodynamic characteristics influenced by tidal propagation from the adjacent Malacca Strait. As a vital shipping corri…
View article: Antimicrobial resistance in a changing climate: a One Health approach for adaptation and mitigation
Antimicrobial resistance in a changing climate: a One Health approach for adaptation and mitigation Open
Background Antimicrobial resistance (AMR) and climate change are interconnected global challenges that threaten human, animal, and environmental health. The World Health Organization has identified AMR as a major public health crisis, furt…
View article: Revisiting antibiotic stewardship: veterinary contributions to combating antimicrobial resistance globally
Revisiting antibiotic stewardship: veterinary contributions to combating antimicrobial resistance globally Open
Background Antimicrobial resistance (AMR) is a critical global health threat, compromising the effectiveness of essential medicines and endangering food security, economic stability, and environmental sustainability. The widespread misuse …
View article: Bacteriophage therapy: a possible alternative therapy against antibiotic-resistant strains of Klebsiella pneumoniae
Bacteriophage therapy: a possible alternative therapy against antibiotic-resistant strains of Klebsiella pneumoniae Open
Klebsiella pneumoniae is a notorious, Gram-negative pathogen and is a leading cause of healthcare settings and community-acquired infections. This is the commensal of human microbiota and can invade and cause infections in different body p…
View article: Pemencilan dan Pencirian Spesies Vibrio Berpotensi Patogen daripada Air Balast di Pelabuhan Malaysia Terpilih
Pemencilan dan Pencirian Spesies Vibrio Berpotensi Patogen daripada Air Balast di Pelabuhan Malaysia Terpilih Open
Kemasukan Vibrio melalui air balast boleh meningkatkan populasi Vibrio sedia ada di perairan tempatan, justeru meningkatkan risiko jangkitan Vibrio pada manusia dan haiwan marin. Selain itu, ia boleh mengganggu ekosistem marin tempatan mel…
View article: Tetraalkylammonium salts (TAS) in solar energy applications – A review on in vitro and in vivo toxicity
Tetraalkylammonium salts (TAS) in solar energy applications – A review on in vitro and in vivo toxicity Open
View article: Nutrient Deficiencies Impact on the Cellular and Metabolic Responses of Saxitoxin Producing Alexandrium minutum: A Transcriptomic Perspective
Nutrient Deficiencies Impact on the Cellular and Metabolic Responses of Saxitoxin Producing Alexandrium minutum: A Transcriptomic Perspective Open
Dinoflagellate Alexandrium minutum Halim is commonly associated with harmful algal blooms (HABs) in tropical marine waters due to its saxitoxin production. However, limited information is available regarding the cellular and metabolic chan…
View article: Insights into Alexandrium minutum Nutrient Acquisition, Metabolism and Saxitoxin Biosynthesis through Comprehensive Transcriptome Survey
Insights into Alexandrium minutum Nutrient Acquisition, Metabolism and Saxitoxin Biosynthesis through Comprehensive Transcriptome Survey Open
The toxin-producing dinoflagellate Alexandrium minutum is responsible for the outbreaks of harmful algae bloom (HABs). It is a widely distributed species and is responsible for producing paralytic shellfish poisoning toxins. However, the i…
View article: PURIFICATION AND PARTIAL CHARACTERISATION OF AN ANTIFUNGAL BACTERIOCIN FROM Bacillus sp. Sh10 ASSOCIATED WITH MARINE CARPET CLAM (Paphia textile)
PURIFICATION AND PARTIAL CHARACTERISATION OF AN ANTIFUNGAL BACTERIOCIN FROM Bacillus sp. Sh10 ASSOCIATED WITH MARINE CARPET CLAM (Paphia textile) Open
This study was conducted to purify and characterize an anti- C. albicans bacteriocin produced by Bacillus sp. Sh10 isolated from marine carpet clam, Paphia textile. Extracellularly produced bacteriocin was purified by 80 % ammonium sulfate…
View article: The Role of Biofilm Formation in Antibiotic Resistance of Bacteria Isolated from Saliva of Patients with Dental Caries
The Role of Biofilm Formation in Antibiotic Resistance of Bacteria Isolated from Saliva of Patients with Dental Caries Open
Objectives: This study aim to determine the bacterial diversity, biofilm forming ability and the antimicrobial resistance of bacteria isolated from saliva of patients with dental caries conditions with the using of 16S rRNA gene sequencing…
View article: Characterization of putative pathogenic Shewanella algae isolated from ballast water
Characterization of putative pathogenic Shewanella algae isolated from ballast water Open
Background and Aim: Shewanella algae is ubiquitous in marine-associated environments and has been increasingly recognized as a significant human pathogen that can cause serious infections mainly associated with exposure to seawater and ing…
View article: Prevalence and molecular Characterization of ESBL-producing Escherichia coli in waste water samples from Pakistan
Prevalence and molecular Characterization of ESBL-producing Escherichia coli in waste water samples from Pakistan Open
View article: Penentuan Cepat Toksisitas Logam Perak Menggunakan Bioluminesen Bakteri Laut Aliivibrio fischeri, Beijerinck, 1889 (Gammaproteobacteria: Vibrionaceae)
Penentuan Cepat Toksisitas Logam Perak Menggunakan Bioluminesen Bakteri Laut Aliivibrio fischeri, Beijerinck, 1889 (Gammaproteobacteria: Vibrionaceae) Open
Rapid determination of toxicity based on changes in the bioluminescent signal of marine bacterium Aliivibrio fischeri (A. fischeri) to evaluate toxicity of Ag(I) has been successfully developed. Assessment of toxicity was designed using in…
View article: In vitro anti-biofilm activity of bacteriocin from a marine Bacillus sp. strain Sh10 against Proteus mirabilis
In vitro anti-biofilm activity of bacteriocin from a marine Bacillus sp. strain Sh10 against Proteus mirabilis Open
Background and Objectives: Biofilm formed by Proteus mirabilis strains is one of the most important medical prob- lems especially in the case of device-related urinary tract infections. This study was conducted to evaluate the bacte- rioci…
View article: Biosynthesis of Saxitoxin in Marine Dinoflagellates: An Omics Perspective
Biosynthesis of Saxitoxin in Marine Dinoflagellates: An Omics Perspective Open
Saxitoxin is an alkaloid neurotoxin originally isolated from the clam Saxidomus giganteus in 1957. This group of neurotoxins is produced by several species of freshwater cyanobacteria and marine dinoflagellates. The saxitoxin biosynthesis …
View article: Isolation, detection of virulence genes, antibiotic resistance genes, plasmid profile, and molecular typing among Vibrio parahaemolyticus isolated in Malaysian seawater from recreational beaches and fish
Isolation, detection of virulence genes, antibiotic resistance genes, plasmid profile, and molecular typing among Vibrio parahaemolyticus isolated in Malaysian seawater from recreational beaches and fish Open
Background and Aim: Despite the importance of the global emergence of Vibrio parahaemolyticus infections worldwide, there has been scanty information on its occurrence in Malaysian seawaters and fish. This study aimed to determine the occu…
View article: Rapid determination of kappa-carrageenan using a biosensor from immobilized Pseudomonas carrageenovora cells
Rapid determination of kappa-carrageenan using a biosensor from immobilized Pseudomonas carrageenovora cells Open
A potentiometric whole cell biosensor based on immobilized marine bacterium, Pseudomonas carrageenovora producing κ-carrageenase and glycosulfatase enzymes for specific and direct determination of κ-carrageenan, is described. The bacterial…
View article: Determination of enterotoxin genes in bacillus cereus from raw milk using multiplex polymerase chain reaction technique
Determination of enterotoxin genes in bacillus cereus from raw milk using multiplex polymerase chain reaction technique Open
A Gram-positive bacterium, which can usually be found in cultivating plants and soil, causing it commonly universal is regarded as Bacillus cereus. It is said that most strains present in B. cereus is specifically called the primary cause …
View article: Study of prevalence biofilm forming bacteria and broad-spectrum antibiofilm activity as anti-quorum sensing agent of streptomyces secondary metabolites on urinary catheter infections
Study of prevalence biofilm forming bacteria and broad-spectrum antibiofilm activity as anti-quorum sensing agent of streptomyces secondary metabolites on urinary catheter infections Open
Catheter-associated urinary tract infection is caused primarily by the multidrug-resistant biofilm forming bacteria of uropathogens. Theprevention and successful treatment of infections is difficult when catheters are colonized by bacteria…
View article: Influence of binary lithium salts on 49% poly(methyl methacrylate) grafted natural rubber based solid polymer electrolytes
Influence of binary lithium salts on 49% poly(methyl methacrylate) grafted natural rubber based solid polymer electrolytes Open
Effect of binary lithium salts (lithium tetrafluoroborate, LiBF4 with lithium trifluoromethanesulfonate, LiCF3SO3) and (lithium tetrafluoroborate, LiBF4 with Lithium iodide, LiI) as charge carriers in solid polymer electrolyte based 49% po…
View article: Diketopiperazine from marine bacterium Pseudoalteromonas ruthenica KLPp3
Diketopiperazine from marine bacterium Pseudoalteromonas ruthenica KLPp3 Open
Sub-minimum inhibitory concentration levels of Pseudoalteromonas ruthenica KLPp3 extract showed antibiofilm activity against Vibrio alginolyticus and Serratia marcescens. The KLPp3 crude extract was fractionated by thin layer chromatograph…
View article: Current Knowledge and Recent Advances in Marine Dinoflagellate Transcriptomic Research
Current Knowledge and Recent Advances in Marine Dinoflagellate Transcriptomic Research Open
Dinoflagellates are essential components in marine ecosystems, and they possess two dissimilar flagella to facilitate movement. Dinoflagellates are major components of marine food webs and of extreme importance in balancing the ecosystem e…
View article: RNA-Seq as an Emerging Tool for Marine Dinoflagellate Transcriptome Analysis: Process and Challenges
RNA-Seq as an Emerging Tool for Marine Dinoflagellate Transcriptome Analysis: Process and Challenges Open
Dinoflagellates are the large group of marine phytoplankton with primary studies interest regarding their symbiosis with coral reef and the abilities to form harmful algae blooms (HABs). Toxin produced by dinoflagellates during events of H…
View article: Antimicrobial resistance and Plasmid profile of Vibrio alginolyticus isolated from Malaysian seawater
Antimicrobial resistance and Plasmid profile of Vibrio alginolyticus isolated from Malaysian seawater Open
The present study was aimed to detect the presence of multiple antibiotic resistance, antibiotic resistance genes and plasmid profile of Vibrio alginolyticus isolated from seawater and sediment of different beaches in Malaysia.Forty five i…
View article: ANTIBIOTIC RESISTANCE OF STRONG BIOFILM FORMING BACTERIA ISOLATED FROM DIFFERENT ORAL SAMPLES OF PATIENTS WITH DENTAL PROBLEMS
ANTIBIOTIC RESISTANCE OF STRONG BIOFILM FORMING BACTERIA ISOLATED FROM DIFFERENT ORAL SAMPLES OF PATIENTS WITH DENTAL PROBLEMS Open
Globally, the wide use of antibiotics in human treatments, animal food supplements, and agriculture practice was the main cause of the emergence of multi antibiotics resistant strains of bacteria which led to a critical health problem.The …
View article: Detection of virulence genes, antibiotic resistance genes, plasmid profile and molecular typing among Vibrio vulnificus isolated from Malaysian seawater and sediment
Detection of virulence genes, antibiotic resistance genes, plasmid profile and molecular typing among Vibrio vulnificus isolated from Malaysian seawater and sediment Open
View article: Biofilm Formation andMultiple Antibiotic Resistance Index of Bacteria Isolates from Saliva, Teeth and Necrotic Roots Canals of Teeth of Dental Patients
Biofilm Formation andMultiple Antibiotic Resistance Index of Bacteria Isolates from Saliva, Teeth and Necrotic Roots Canals of Teeth of Dental Patients Open
Globally, antibiotic resistance among oral microbiota has constituted an increasing health challenge, and limited information regarding such resistance is available.This study was designed to isolate both aerobic and anaerobic bacteria fro…
View article: MARINE Streptomyces SP. UKMCC_PT15 PRODUCING UNDECYLPRODIGIOSIN WITH ALGICIDAL ACTIVITY
MARINE Streptomyces SP. UKMCC_PT15 PRODUCING UNDECYLPRODIGIOSIN WITH ALGICIDAL ACTIVITY Open
Marine actinomycetes are now in demand as they are capable of producing unique and novel compounds with wide biological activities. Marine Streptomyces sp. UKMCC_PT15 previously isolated from seawater collected in Pulau Tinggi, Johor was u…
View article: Loktanella spp. Gb03 as an algicidal bacterium, isolated from the culture of Dinoflagellate Gambierdiscus belizeanus
Loktanella spp. Gb03 as an algicidal bacterium, isolated from the culture of Dinoflagellate Gambierdiscus belizeanus Open
On the basis of phenotypic, phylogenetic data and genetic distinctiveness, strain Gb-03, were placed in the genus Loktanella as the type strain of species. Moreover, it has algicidal activity against seven toxic Dinoflagellate. The algicid…
View article: Partial Characterization of an Anti-<em>Candida albicans</em> Bacteriocin Produced by a Marine Strain of <em>Bacillus</em> sp., Sh10
Partial Characterization of an Anti-<em>Candida albicans</em> Bacteriocin Produced by a Marine Strain of <em>Bacillus</em> sp., Sh10 Open
The bacteriocin-producing strain Bacillus sp., Sh10, isolated from the marine environment, exhibited a broad spectrum of antimicrobial activity against different food spoilage and human pathogens, with a maximum inhibitory activit…