Article
Fisheries
Arnon Pudgerd, Thanapong Kruangkum, Kallaya Sritunyalucksana, Rapeepun Vanichviriyakit, Supapong Imsonpang, Charoonroj Chotwiwatthanakun
Summary: Hemocyte reduction in fatally VPAHPND-infected prawns is caused by an acute self-destructive immune response by hematopoietic cells.
FISH & SHELLFISH IMMUNOLOGY
(2021)
Article
Polymer Science
Benedict Terkula Iber, Donald Torsabo, Che Engku Noramalina Che Engku Chik, Fachrul Wahab, Siti Rozaimah Sheikh Abdullah, Hassimi Abu Hassan, Nor Azman Kasan
Summary: The major sources of waste from aquaculture operations are fish or shellfish processing and wastewater generation. This study used a chemical method to extract chitin and chitosan from Macrobrachium rosenbergii carapace and applied them for wastewater treatment in shrimp aquaculture. The results showed that the chitosan produced had good quality and could effectively remove turbidity and salinity in the wastewater. The process conditions adopted in this study yielded chitosan of good quality, suitable as a biopolymer coagulant for aquaculture wastewater treatment.
Article
Fisheries
Fanbin Zhan, Yanan Li, Fei Shi, Zhijie Lu, Minxuan Yang, Qingqing Li, Li Lin, Zhendong Qin
Summary: This study used RNA-seq to analyze the transcriptomes of Macrobrachium rosenbergii hemocytes after Vibrio parahaemolyticus challenge. The results showed significant differential gene expression in both 6 and 12 hours after challenge, with immune-related pathways being affected. qRT-PCR confirmed the activation of immune response in M. rosenbergii after V. parahaemolyticus infection. These findings provide new insights into the immune system of M. rosenbergii and suggest a potential approach to combat bacterial infections.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Engineering, Environmental
Benedict Terkula Iber, Donald Torsabo, Che Engku Noramalina Che Engku Chik, Fachrul Wahab, Siti Rozaimah Sheikh Abdullah, Hassimi Abu Hasan, Nor Azman Kasan
Summary: In this study, dry legs of giant freshwater prawn were chemically processed into chitin and chitosan for use as coagulant in the coagulation/flocculation of real aquaculture wastewater. The optimum operating conditions of chitosan dosage, pH, and settling time for removal of turbidity and colour were established using response surface methodology. The results showed that the smooth and none porous chitosan with high solubility and degree of deacetylation exhibited great potential as a good coagulant.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Biochemistry & Molecular Biology
Quanxin Gao, Shaokui Yi, Jinping Luo, Qianqian Xing, Jiali Lv, Panhuang Wang, Cuihua Wang, Yang Li
Summary: By knocking out the FlaB gene of Vibrio anguillarum, this study found little impact on the induction of immune-related gene expression, and the mutant displayed similar flagella morphology and immune characteristics to the wild-type strain. This suggests that knockout of FlaB may promote the expression and function of other flagellin proteins.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Fisheries
Liwen Zhang, Zheling Zhang, Sunan Xu, Xiaojun Zhang, Xiaodan Liu
Summary: This study aimed to elucidate the mechanism of miRNA in the potential immune response of Macrobrachium rosenbergii to non-O1 Vibrio cholerae MSVC-GY01 infection by transcriptome sequencing. The results showed that non-O1 Vibrio cholerae affected the NOD-like receptor signaling pathway, RIG-I-like receptor signaling pathway, and Toll-like receptor signaling pathway in Macrobrachium rosenbergii, suggesting the key role of miRNA in immune responses to pattern recognition receptors.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Fisheries
Snigdha Baliarsingh, Jong Min Chung, Sonalina Sahoo, Arup Sarkar, Jyotirmaya Mohanty, Yeon Soo Han, Yong Seok Lee, Bharat Bhusan Patnaik
Summary: The study indicates that there is a significant increase in differentially expressed genes in prawns infected with Vibrio harveyi, and some genes related to prawn immune response were identified.
AQUACULTURE RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Yue Zhai, Xiangjun Meng, Li Li, Yushen Liu, Kun Xu, Chao Zhao, Juan Wang, Xiuling Song, Juan Li, Minghua Jin
Summary: This study presents a rapid and sensitive detection method for Vibrio parahaemolyticus by integrating magnetic nanobeads and quantum dots technology. The detection combines immunoseparation and immunofluorescence to achieve efficient detection of Vibrio parahaemolyticus, showing satisfactory results in real food samples.
Article
Fisheries
Xi-Lian Li, Yu-Fei Zhang, Pei-jing Shen, Yang Xu, Qiang Gao, Hai-Hua Cheng, Wen-Da Wang, Zhi-min Gu, Xue-Feng Chen
Summary: Baicalin has a protective effect against a Vibrio parahaemolyticus challenge, enhancing immune response and increasing the expression levels of antimicrobial peptides in Macrobrachium rosenbergii.
JOURNAL OF THE WORLD AQUACULTURE SOCIETY
(2021)
Article
Veterinary Sciences
Yifan Zhou, Shuwen Gu, Jie Li, Peng Ji, Yingjie Zhang, Congcong Wu, Qun Jiang, Xiaojian Gao, Xiaojun Zhang
Summary: This study sequenced the whole genome of non-O1/O139 Vibrio cholerae GXFL1-4, isolated from Macrobrachium rosenbergii, to investigate its virulence and antibiotic resistance. The results revealed a complex molecular mechanism of pathogenicity and antibiotic resistance in this strain. The findings provide important insights into the pathogenesis of non-O1/O139 V. cholerae and may contribute to the development of prevention and treatment strategies.
FRONTIERS IN VETERINARY SCIENCE
(2022)
Article
Fisheries
Jiangtao Tian, Ying Yang, Wenyue Xu, Xinglin Du, Yucong Ye, Bihong Zhu, Yizhou Huang, Yunlong Zhao, Yiming Li
Summary: In this study, the researchers investigated the effects of beta-1,3-glucan on the immune responses and gut microbiota of river prawns under Vibrio parahaemolyticus stress. They found that feeding prawns with 0.2% beta-1,3-glucan resulted in improved growth, survival, and intestinal morphology compared to the control group. The study also showed that beta-1,3-glucan enhanced enzyme activities, immune-related gene expression, and bacterial abundance in the shrimp's gut.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Biology
S. Thanigaivel, John Thomas, A. S. Vickram, K. Anbarasu, Rohini Karunakaran, Jeyanthi Palanivelu, P. S. Srikumar
Summary: The study demonstrates the biological synthesis of AgNPs by Ch. antennia against V. harveyi in M. rosenbergii, showing effective antibacterial activity. Oral administration of encapsulated AgNPs significantly improves the survival rate in vivo.
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
(2021)
Article
Multidisciplinary Sciences
Benedict Terkula Iber, Donald Torsabo, Che Engku Noramalina Che Engku Chik, Fachrul Wahab, Siti Rozaimah Sheikh Abdullah, Hassimi Abu Hassan, Nor Azman Kasan
Summary: Unless better measures are implemented to address the environmental and social impacts of waste from sea food processing industries, the 'tragedy of the commons' is inevitable. Aquaculture has been proven to be a sustainable substitute for capture fisheries, but the large amount of bio-waste generated poses challenges. However, this waste can be transformed into valuable products like chitin and chitosan with various applications.
Article
Biology
Xuedi Du, Xin Yan, Weiwei Zhang, Zhu Zhu, Wenhao Qin, Xiaojing Dong, Xiaojun Zhang
Summary: This study identified SNPs associated with slow growth syndrome in Giant freshwater prawn, and confirmed two SNPs beneficial to growth performance, which could be potentially applied in marker assisted selection in future breeding programs.
Article
Microbiology
Anusuya Debnath, Shin-Ichi Miyoshi
Summary: In this study, the role of regulatory factors TfoX, CytR, OpaR, and RpoS during natural transformation of V. parahaemolyticus was evaluated. TfoX was found to regulate natural competence via CytR in a chitin-dependent manner, while OpaR affected natural transformation through its regulation of extracellular nuclease Dns. RpoS was not required for the regulation of natural competence in V. parahaemolyticus.
BRAZILIAN JOURNAL OF MICROBIOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Sara Talebi, Souhad M. A. Daraghma, Ramesh T. Subramaniam, Subha Bhassu, Georgepeter Gnana Kumar, Vengadesh Periasamy
Article
Infectious Diseases
Denis C. Bauer, Alejandro Metke-Jimenez, Sebastian Maurer-Stroh, Suma Tiruvayipati, Laurence O. W. Wilson, Yatish Jain, Amandine Perrin, Kate Ebrill, David P. Hansen, Seshadri S. Vasan
Summary: The study highlights the importance of linking clinical outcomes to SARS-CoV-2 virus strains in understanding COVID-19. By implementing FHIR standards and using ontology-based questionnaires, data collection and analysis can be optimized. Furthermore, emphasizing detailed symptoms and medical history in clinical health data acquisition could enhance the data-driven understanding of the virus.
TRANSBOUNDARY AND EMERGING DISEASES
(2021)
Article
Biochemical Research Methods
Lavanya Malini Vythalingam, M. A. Motalib Hossain, Subha Bhassu
Summary: The study developed a rapid identification method for invasive fish species in Malaysia, successfully identifying six common alien fish species. The method is accurate, sensitive, and able to avoid false positives, with high species specificity.
MOLECULAR AND CELLULAR PROBES
(2021)
Article
Genetics & Heredity
SiouNing Aileen See, Zee Hong Goh, Yen Yew Chan, Khai En Chong, Geok Yuan Annie Tan, Subha Bhassu, Rofina Yasmin Othman
Summary: Disease outbreak is a major challenge in shrimp aquaculture industry. This study developed a DPO-based multiplex PCR system for simultaneous detection of shrimp viruses. The system showed potential for rapid and effective screening of shrimp viruses in laboratory settings.
Article
Environmental Sciences
Lavanya Malini Vythalingam, Rajeev Raghavan, Motalib Hossain, Subha Bhassu
Summary: The recent increase in alien fish species in rivers, lakes, and reservoirs in Malaysia poses a significant risk to native biodiversity. Six alien fish species in Peninsular and East Malaysia show high potential to invade a majority of protected areas, influenced by temperature and humidity. These findings will aid conservation efforts to manage and mitigate the future invasion of alien freshwater fish species in Malaysia.
AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
(2022)
Article
Multidisciplinary Sciences
Tze Chiew Christie Soo, Subha Bhassu
Summary: The study focuses on the functional importance of shrimp STAT gene in terms of differential gene expression, sequence divergence, structural differences, and associated functional differentially expressed genes under different disease infections. These findings can be utilized for shrimp health and host response diagnostic studies, and also propose the STAT gene as a candidate for future studies on enhancing shrimp innate immunity.
Article
Food Science & Technology
Tze Chiew Christie Soo, Subha Bhassu
Summary: This study examines the impact of acute hepatopancreatic necrosis disease (AHPND) on shrimp, specifically focusing on the activation of the immune response and changes in gut microbiome. The results suggest that AHPND infection leads to immune response activation and alterations in the shrimp gut microbiome. These findings have implications for shrimp health diagnosis, disease control, and food safety.
FOOD SCIENCE & NUTRITION
(2022)
Article
Fisheries
Md Lokman Ali, Md Mahamudul Hasan Mredul, Md Rabiul Islam Rubel, Shib Nath Pattadar, Subha Bhassu, Sadia Sharmin, Md Aminur Rahman, Thi Kim Ahn Tran, Md Rushna Alam
Summary: Hatchery operators often face difficulties in seawater transportation. This study tested the use of crude salt as an alternative to seawater in hatchery operations. The results showed that up to 30% replacement of seawater with crude salt is possible for giant freshwater prawn PL production at a water salinity of 12 g/L.
AQUACULTURE RESEARCH
(2022)
Article
Chemistry, Physical
S. Selambakkannu, K. A. Bakar, T. M. Ting, N. H. L. Abdullah, S. Devadas, S. Bhassu
Summary: This study focuses on the effectiveness of electron beam irradiation (EBI) treatment in inactivating various bacteria in domestic sewage sludge samples. The results indicate that irradiation energy plays a crucial role in the inactivation of targeted microorganisms, while the physico-chemical properties of the sludge samples remain intact. Furthermore, the re-growth of bacteria is effectively inhibited even after prolonged storage.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Zoology
Mohamad Harris Nasir, Subha Bhassu, Muhamad Shakirin Mispan, Sazaly Abu Bakar, Khoo Jing Jing, Hasmahzaiti Omar
Summary: This study investigated the species composition and phylogenetic relationships of rats in Malaysian oil palm plantations. Five distinct lineages were identified, with the most frequently observed species being a taxon corresponding to the Malayan house rat. This taxon was found to be an independent lineage, not closely related to other rat species.
ZOOLOGICAL SCIENCE
(2022)
Editorial Material
Microbiology
Suma Tiruvayipati, Dharjath S. Hameed, Niyaz Ahmed
Summary: The interaction between gut microbiota and their host has significant effects on the host's immune system and physiology, resulting in either homeostasis or disease. The ligand-receptor binding plays a crucial role in this interaction, and the specific ligands and receptors determine the outcome of the interaction. It is important to study the interaction between gut microbiota and their host to understand the mechanisms underlying diseases and identify potential therapeutic targets.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Multidisciplinary Sciences
Tze Chiew Christie Soo, Subha Bhassu
Summary: In recent years, shrimp aquaculture has become the major source of global shrimp production. However, shrimp production has been hindered by various shrimp diseases. This study compared the genetic factors and evolutionary divergence between two important shrimp species, Macrobrachium rosenbergii and Penaeus monodon, and successfully identified important selection forces.
Article
Multidisciplinary Sciences
Anderson F. Brito, Elizaveta Semenova, Gytis Dudas, Gabriel W. Hassler, Chaney C. Kalinich, Moritz U. G. Kraemer, Joses Ho, Houriiyah Tegally, George Githinji, Charles N. Agoti, Lucy E. Matkin, Charles Whittaker, Benjamin P. Howden, Vitali Sintchenko, Neta S. Zuckerman, Orna Mor, Heather M. Blankenship, Tulio de Oliveira, Raymond T. P. Lin, Marilda Mendonca Siqueira, Paola Cristina Resende, Ana Tereza R. Vasconcelos, Fernando R. Spilki, Renato Santana Aguiar, Ivailo Alexiev, Ivan N. Ivanov, Ivva Philipova, Christine V. F. Carrington, Nikita S. D. Sahadeo, Celine Gurry, Sebastian Maurer-Stroh, Dhamari Naidoo, Karin J. von Eije, Mark D. Perkins, Maria van Kerkhove, Sarah C. Hill, Ester C. Sabino, Oliver G. Pybus, Christopher Dye, Samir Bhatt, Seth Flaxman, Marc A. Suchard, Nathan D. Grubaugh, Guy Baele, Nuno R. Faria
Summary: Genomic sequencing plays a crucial role in tracking the spread and evolution of SARS-CoV-2, optimizing response measures and guiding vaccine development. Disparities in sequencing capacity and turnaround time between low- and middle-income countries and high-income countries highlight the need for global effort to strengthen surveillance.
NATURE COMMUNICATIONS
(2022)
Article
Biotechnology & Applied Microbiology
Siti Fatimah Mohd Taha, Subha Bhassu, Hasmahzaiti Omar, Chandramati Samudi Raju, Arutchelvan Rajamanikam, Suresh Kumar P. Govind, Saharuddin Bin Mohamad
Summary: This study utilized whole metagenomics approach to investigate the microbial structure and functional capacity of the Asian population. A comparison of the gut microbiota in Malaysia, India, China, and Thailand revealed similar taxonomic diversity, with Bacteroidetes, Firmicutes, and Actinobacteria being predominant. The multi-racial population in Malaysia, which shares similar dietary preferences, culture, and lifestyle, had a significant impact on the structure of gut microbiota. Thailand showed a distinct diversity in the gut microbiota, with Firmicutes being highly dominant. Functional analysis identified common gene families among the four countries, with Malaysia having the most unique gene families and KEGG Orthologs, primarily related to metabolic pathways and microbial metabolism.
Article
Geosciences, Multidisciplinary
Rosazlin Abdullah, Firuza Begham Mustafa, Subha Bhassu, Nur Aziaty Amirah Azhar, Benjamin Ezekiel Bwadi, Nur Syabeera Begum Nasir Ahmad, Aaronn Avit Ajeng
Summary: This study evaluated water and soil qualities for giant freshwater prawn farming site suitability using Analytic Hierarchy Process (AHP) and Geographic Information System (GIS) in Jelebu, Malaysia. Approximately 45.41% of the land was found most suitable, 28.89% moderately suitable, and 25.69% unsuitable for prawn farming. The combination of AHP and GIS can provide a better database and guide map for planners and decision-makers to make more rewarding decisions when allocating land for prawn farming.