Quoc Nguyen

Quoc Nguyen
Nong Lam University | NLU · Research Institute of Biotechnology and Environment

Ph.D

About

81
Publications
38,294
Reads
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949
Citations
Citations since 2017
58 Research Items
467 Citations
2017201820192020202120222023020406080100
2017201820192020202120222023020406080100
2017201820192020202120222023020406080100
2017201820192020202120222023020406080100
Additional affiliations
January 2016 - March 2016
Tuskegee University
Position
  • Borlaug Research Fellow
August 2014 - August 2014
University of Nottingham
Position
  • Visiting Research Fellow
February 2013 - present
Nong Lam University
Position
  • Lecturer
Description
  • Graduate Teaching : Proteomics (2013) Biotechnology in Medicine (2014)
Education
April 2005 - March 2008
Kobe University
Field of study
  • Biological and Environmental Science
April 2003 - March 2005
Kobe University
Field of study
  • Biological and Environmental Science
September 1995 - March 2000
Nong Lam University
Field of study
  • Agronomy

Publications

Publications (81)
Article
Application of powder diets may promote development of the predator Geocoris ochropterus (Fieber) when densities are low in greenhouses or fields. Development and nymphal survival ratio of G. ochropterus fed on different powder diets including silkworm pupae (A), crickets (B), silkworm pupae and sunflower seed (C) and crickets and sunflower seed (D...
Poster
Full-text available
“The First International Symposium of Nano Life Science: Nano Biotechnology, Biosensor, Computation (NanoBioCoM2023) September 17-19, 2023, ICISE, Quy Nhon, Vietnam Rencontres du Vietnam: The first International Symposium of Nano Life Science: Nano Biotechnology, Biosensor, Computation (NanoBioCoM2023) will mainly focused on basic and applied stud...
Conference Paper
Full-text available
The family Pangasiidae was recorded with 19 species in Vietnam, of which 5 species were obtained from the Saigon River basin. Fish species in the family Pangasiidae play a very essential role in the seafood export industry of Vietnam, but the classification of these fish species using a morphological approach is still difficult and confusing becaus...
Article
Being predominantly cultivated in the tropics, coconut (Cocos nucifera L.) is one of the most important palm crops in the world. Even though it provides a significant source of income for smallholder farmers in many developing countries including Vietnam, its genetic diversity is yet to be well understood. In this study, genetic diversity and genet...
Chapter
Full-text available
The genus Begomovirus comprises a diverse group of economically important plant viruses infecting several crop species such as papaya, tomato, cotton, pulses, and cucurbits. They are single-stranded DNA virus belonging to the family geminiviridae and are transmitted by whiteflies. Most of the viruses in the genus Begomovirus comprise ssDNA(+), with...
Article
Full-text available
Corynespora cassiicola is a causal agent of Corynespora leaf fall disease (CLFD) in Hevea brasiliensis. This pathogen attacks the host cells using a small-secreted glycoprotein named cassiicolin that has been demonstrated to be an important effector during the infection process of C. cassiicola. Cassiicolin-encoding genes were identified and their...
Article
Full-text available
Cassiicolin (Cas), a toxin produced by Corynespora cassiicola, is responsible for corynespora leaf fall disease in susceptible rubber trees. Currently, the molecular mechanisms of the cytotoxicity of Cas and its host selectivity have not been fully elucidated. Here, we analyzed the binding of Cas1 and Cas2 to membranes consisting of different plant...
Article
Full-text available
Hepatocellular carcinoma (HCC) is the most common primary liver malignancy and the third cause of cancer-related death worldwide. Potential microRNAs have been reported as biomarkers for early detection of HCC as well as novel molecular targets for HCC treatment. Various tissue expression profiles of miRNAs using three microarray datasets from grou...
Article
Hermetia illucens, the so-called black soldier fly (BSF), has been reported as an important insect in treating domestic and agricultural manure wastes. With the ability to live well in the environment of decomposition or waste containing a variety of substances, many types of microorganisms can be related to the intestinal microflora, helping the l...
Article
Magnaporthe oryzae is the causal agent of rice blast disease resulting in yield losses in rice-growing regions worldwide, particularly in Vietnam. Up-regulation of osa-miR7695 was observed in blast resistant rice cultivars in comparison with blast non-resistant rice cultivars. The OsNramp6 gene is a target for osa-miR7695, and considered a factor i...
Article
Full-text available
Coconut (Cocos nucifera L.) production sustains millions of smallholder farmers and their families around the globe, and also powers a thriving industry of climate-adaptive nutrition and biomaterials. Demand for high-quality planting materials has risen sharply in recent years, calling for greater understanding and potential utilization of the gene...
Preprint
Full-text available
] An alternating electric field is applied to induce swelling of thin lipid films and generation of giant unilamellar vesicles (GUVs) on an indium tin oxide (ITO)-coated glass surface. The process is, hereafter, referred to as the electroformation of GUVs. Several important parameters such as lipid manipulation, temperature, osmolarity and ionic st...
Article
Full-text available
PCR-based molecular approaches including RAPD (random amplified polymorphic DNA), ISSR (inter-simple sequence repeat), and SRAP (sequence-related amplified polymorphism) are commonly used to analyze genetic diversity. The aims of this study are to analyze genetic diversity of M. oryzae isolates using PCR-based molecular approaches such as RAPD, ISS...
Preprint
Full-text available
Cassiicolin (Cas), a toxin produced by Corynespora cassiicola , is responsible for corynespora leaf fall disease in rubber trees. Currently, the molecular mechanism of the cytotoxicity of Cas and its host selectivity have not been fully elucidated. Here, we analyzed the binding of Cas1 and Cas2 to membranes consisting of different plant lipids and...
Article
Full-text available
We investigated the influence of convenient diets on big-eyed bug Geocoris ochropterus. Development and reproduction of G. ochropterus fed on convenient diets of ant pupae Oecophylla smaragdina and silkworm pupae Bombyx mori were examined using aphids Aphis gossypii as the control diet. Results showed that Geocoris ochropterus nymphs completed deve...
Chapter
Sugarcane white leaf disease (SWLD) and grassy shoot disease (SGSD) are caused by phytoplasma transmission between plants through insect vectors and infected cane setts, resulting in severe reduction of global yield and quality. Vietnam has large areas of sugarcane cultivation, and huge losses are caused by SWLD and SGSD, which impact on the sugar...
Article
Phloem-limiting phytoplasmas are known to be causal agents of phyllody, which is recognized by the abnormal development of floral structures resulting in serious yield losses in sesame plants. Currently, identification of the various groups of phytoplasmas that cause sesame phyllody (SP) is conducted by nested PCR, RFLP, and multiplex real-time qPC...
Article
The Sugarcane white leaf (SCWL) phytoplasma from group 16SrXI is the causal agent of Sugarcane white leaf disease (SWLD) resulting in severe yield losses to the sugar industry. Although microscopy, serology based methods, dot blot DNA hybridization, and PCR have been developed as diagnostic tests, these techniques are labour intensive, costly and t...
Article
Full-text available
The present paper describes first full genome sequence of the Garlic virus D (GarV-D) from northern India with a genome size of 8425 bp long ssRNA. The infected leaves and bulbs of garlic variety Yamuna Safed (G-282) plants suspected for Garlic virus D infection were collected with the aim to identify contagion virus during March, 2018. The total R...
Article
Full-text available
Nghiên cứu này, nhằm đánh giá khả năng kiểm soát sinh học bệnh rụng lá Corynespora trên cây cao su do nấm Corynespora cassiicola gây ra bằng vi khuẩn Bacillus sp. S29 từ in vitro đến quy mô vườn ươm. Kết quả nghiên cứu cho thấy, dịch nuôi cấy vi khuẩn Bacillus sp. S29 có khả năng ức chế nấm C. cassiicola trong đĩa petri ở điều kiện in vitro và trên...
Article
Full-text available
A total of 76 Corynespora cassiicola isolates collected from 16 rubber clones in several geographic regions of Vietnam, were studied for genetic diversity by ribosomal DNA internal transcribed spacer (rDNA-ITS) sequences and sequence-related amplified polymorphism (SRAP) techniques. Results of rDNA-ITS sequence analysis indicated 2 nucleotide polym...
Article
Full-text available
Nghiên cứu được tiến hành thu thập các mẫu dưa cải (Brassica juncea Coss) tại chợ Thủ Đức – Thành phố Hồ Chí Minh, sau đó xác định hàm lượng nitrat theo ngày ủ chua bằng phương pháp so màu với Natri salixylat. Từ 10 mẫu dưa cải khác nhau được thu thập tại chợ tiến hành phân lập, tuyển chọn vi khuẩn có khả năng phân giải nitrat trên môi trường đặc t...
Article
Full-text available
The present paper describes first full genome sequence of the Garlic virus D (GarV-D) from northern India with a genome size of 8425 bp long ssRNA. The infected leaves and bulbs of garlic variety Yamuna Safed (G-282) plants suspected for GarV-D infection were collected with the aim to identify con-tagion virus during March, 2018. The total RNA was...
Article
Full-text available
Parasitoids are important biological control of crop pests. In Vietnam, Cotesia vestalis is a native wasp species that has demonstrated its applicability as a natural insect pest enemy. Many adult parasitoids require food resources such as nectar and pollen to optimize their life cycles. Potential effects of yellow cosmos (Cosmos sulphureus), shrub...
Article
Full-text available
The genus Neophyllaphis (Takahashi) (Aphididae: Neophyllaphidinae) is composed of 18 species; however, in the Americas only nine species have been reported previously. A new species, Neophyllaphis varicolor Miller & Halbert, was described in 2014 in USA. Colonies resembling those of this new species have been observed in Costa Rica on Podocarpus sp...
Article
Full-text available
Magnaporthe oryzae causes rice blast disease, which leads to devastating yield losses in Vietnam and other rice-growing countries. Recent studies indicated that 30% of rice- growing areas are affected by rice blast disease. MicroRNAs (miRNAs) are short non-coding RNAs that are related to plant development and biotic stress tolerance. Osa-miR7695 as...
Article
Full-text available
The main volatile components of leaf extracts from Lantana camara by GC-MS were identified as β–Caryophylene (29.67%), Caryophylene oxide (2.69%),α–Humulene (10.24%)and Germacrene D (1.72%). The antifeedant activity of Lantana camera essential oil was tested against Spodoptera litura and Plutella xylostella at different concentrations. Results indi...
Article
Full-text available
The rice blast fungus, Magnaporthe oryzae, is the causal agent of severe damage in worldwide rice growing area. The resistance to blast infection has been determined by the relationship between the R resistant gene of rice and avirulence gene AVR of phytopathogenic fungi based on the “gene for gene” theory. The main objective of this study was to d...
Technical Report
Full-text available
Vietnam is one of the most vulnerable countries to the impacts of climate change. It's extensive lowland coastal areas which support most of the country's agriculture and aquaculture production, is particularly susceptible to flooding and saline intrusion. The government realizes that there is an urgent need to prepare and plan for necessary respon...
Article
Full-text available
Background: Hepatocellular carcinoma (HCC) is the leading cause of cancer-related death in the world and considered as one of the most susceptible cancers in humans. The microRNA molecule, hsa-miR122, considered as a potential biological marker linked with the injury of hepatocellular tissue, is the most common microRNA in human liver cancer. Under...
Chapter
Vào những năm thập niên 1980, các nhà sinh học hầu như vẫn cho rằng genome được chia làm 2 phần là exon (có chức năng) và intron (không có chức năng). Tuy nhiên, các nghiên cứu khoa học về lĩnh vực sinh học, đặc biệt là sinh học phân tử đã mở ra nhiều khái niệm về vai trò của intron. Một trong những vai trò đó là các phần gen mã hóa cho các microRN...
Article
Full-text available
Rice blast disease caused by a filamentous fungus, Magnaporthe oryzae, has been one of the most devastating of all cereal diseases worldwide. The interaction between rice plant, Oryza sativa and rice blast fungus, Magnaporthe oryzae was activated by the interaction between protein products of rice resistant genes and fungal avirulence genes. The re...
Article
Full-text available
From 22 rice, soil and water samples collected in the field of Long An and Tien Giang provinces, we isolated and screened 87 strains of bacteria around the root zone and endophytic bacteria. Through testing the ability of plant growth stimulation, the result showed 16 strains were capable of nitrogen fixation, 13 strains were capable of phosphate s...
Article
Full-text available
In this study, 25 endophytic bacteria were isolated and purified from rhizome, stem and leaf of the elephant grass, which were tested for their biological control properties. The number of living and dead brown plant hoppers were recorded and the mortality rate was analyzed by using Abbott’s formula. The results indicated that three endophytic bact...
Article
Full-text available
Background: Hepatocellular carcinoma (HCC) is the leading cause of cancer-related death in the world and considered as one of the most susceptible cancers in humans. The microRNA molecule, hsa-miR122, considered as a potential biological marker linked with the injury of hepatocellular tissue, is the most common microRNA in human liver cancer. Unde...
Article
Full-text available
Recently, many studies have demonstrated the significant advantages of loop-mediated isothermal amplification (LAMP) based methods over serological tests and PCR for rapid detection of microbial pathogens. Here, a rapid LAMP assay was developed to detect the hepatitis B virus (HBV) from DNA, and particularly, blood samples from infected patients us...
Article
Full-text available
The mechanisms that fungi use to co-regulate subsets of genes specifically associated with morphogenic states represent a basic unsolved problem in fungal biology. Candida albicans is an important model of fungal differentiation both for rapid interconversion between yeast and hyphal growth forms and for white/opaque switching mechanisms. The Sunds...
Data
Strains and plasmids used in this study. (DOCX)
Data
Oligonucleotides and probes. (DOCX)
Data
Single cell fluorescence of strains SKD233 (HCRc) and SKD232 (HCRd). The fluorescence intensities of HCRc strain cells ranged from 30 to 60 with over 70% of cells falling in the 30–40 group. In contrast, cells from strain HCRd ranged from 60 to 160 indicating that GFP expression is derepressed in HCRd compared to HCRc cells. The region -1162 to -10...
Article
Full-text available
In order to attack plant cells, phytopathogenic fungi must secrete enzymes to break down the cell wall, which is considered the first protective layer of plants. A large number of CWDEs encoded proteins involved in plant cell wall decomposition, have been previously identified and demonstrated in the rice blast fungus, Magnaporthe oryzae but little...
Article
Full-text available
RNA silencing, the phenomenon known as RNA interference (RNAi), co-suppression or post-transcriptional gene silencing (PTGS) and quelling, has become more popular in studies of its intrinsic roles and applications in many organisms or of gene functions in a whole genomic scale. Since the discovery of RNA silencing more two decades ago, this powerfu...
Article
Full-text available
Nấm đạo ôn, Magnaporthe oryzae, là một trong những tác nhân gây thiệt hại rất lớn đến canh tác và sản xuất lúa trên thế giới. Triệu chứng của bệnh đạo ôn trên lúa ở giai đoạn đầu thường rất dễ bị nhầm lẫn với triệu chứng bệnh do các nấm khác gây ra, dẫn đến những khó khăn cho công tác phòng trừ bệnh kịp thời. Việc xác định nấm M.oryzae gây bệnh đạo...
Article
Full-text available
Để hạn chế những tác động tiêu cực mà thuốc bảo vệ thực vật có nguồn gốc hóa học mang lại thì nhiều loại thuốc bảo vệ thực vật sinh học có nguồn gốc từ thảo mộc đã ra đời. Cây hoa ngũ sắc Lantana camara L. không chỉ được biết đến như một loại dược thảo được sử dụng làm thuốc chữa bệnh, mà hiệu quả phòng trừ côn trùng gây hại trên cây trồng của loài...
Article
Full-text available
Câm lặng gen vốn có rất nhiều thuật ngữ khác nhau nhưng cùng một cơ chế phân tử như RNAi, cosuppression, câm gen sau phiên mã (PTGS – Post transcriptional Gene Silencing), quelling, đã trở nên phổ biến trong các nghiên cứu về vai trò bản chất bên trong và các ứng dụng của nó trên nhiều đối tượng hoặc các nghiên cứu về chức năng của các gen ở mức độ...
Article
Full-text available
Liên cầu lợn, Streptococcus suis, là một trong những tác nhân gây bệnh quan trọng làm ảnh hưởng lớn đến ngành chăn nuôi lợn trên thế giới và có thể lây truyền từ lợn sang người gây viêm màng não, viêm phổi, nhiễm trùng máu và dẫn đến tử vong nếu không điều trị kịp thời. Việc sử dụng các loại kháng sinh không kiểm soát chặt chẽ như hiện nay được xem...
Chapter
Full-text available
In the post-genomics era, RNAi has rapidly become a powerful reverse genetic tool for elucidating gene function in a wide range of eukaryotes including fungi. In this review, we focus on recent discoveries of RNAi-related biological phenomena in fungi and their underlying molecular mechanisms. In addition, recent advances in RNA-mediated gene silen...
Article
Full-text available
MicroRNA (miRNA) một họ các phân tử RNA không mã hoá (non-coding RNAs) có chiều dài khoảng 21 nucleotide, đóng vai trò điều hoà sau phiên mã sự biểu hiện gen ở tế bào eukaryote. Với các tính chất biểu hiện đặc trưng, đặc biệt cho nhiều loại bệnh ung thư, cùng với hai tính chất nổi bật khác, đó là tính lưu thông trong nhiều loại dịch thể và tính bền...
Article
Full-text available
The plant cell wall is always the physical barrier in which phytopathogenic fungi must overcome by producing an array of cell wall degrading enzymes (CWDEs) that allow them to invade host tissues through the degradation of cell wall components of plants. Magnaporthe oryzae is a causal agent of blast disease, one of the most devastating disease in r...
Article
Full-text available
Vietnam is a tropical country with high diversity in insect distribution along the country. Rice, vegetables, maize, and beans are grown in all the country and share almost the same pest and parasitoids although the weather range is much different among the country. Long (2011) has listed about 300 species of parasitic braconids in agricultural lan...
Article
Full-text available
Transcriptional activator, XlnR, has been known to play an important role in regulation of cell wall degrading enzymes (CWDEs) in some pathogenic fungi. Here, we used RNA silencing to simultaneously knock-down the expression of two XlnR like genes (Mg-XlnR) in the genome of rice blast fungus Magnaporthe oryzae. Using Northern analysis, various leve...
Article
Full-text available
TÓM TẮT: Yếu tố phiên mã XlnR có vai trò quan trọng trong việc kiểm soát hoạt động của các gen liên quan đến enzyme phá huỷ thành tế bào (CWDEs) của nấm bệnh. Trong nghiên cứu này chúng tôi sử dụng công cụ ức chế gen (RNA silencing) để ức chế sự biểu hiện của hai gen yếu tố phiên mã MG-XLNR của nấm đạo ôn. Phân tích bằng phương pháp Northern đã chỉ...
Conference Paper
Full-text available
NADH dehydrogenase được xem là vùng hoạt động chính của chuỗi hô hấp ti thể. Hiện tại rất ít nghiên cứu chỉ ra vai trò sinh học của các men NADH dehydrogenase trên nấm gây bệnh. Trong nghiên cứu này chúng tôi sử dụng công cụ ức chế gen (RNAi) để ức chế sự biểu hiện của ba gen liên quan đến NADH dehydrogenase của nấm đạo ôn. Phân tích bằng khuếch đạ...
Article
Full-text available
Upon infection, phytopathogenic fungi secrete an array of hydrolytic enzymes that can degrade components of the host epidermis, including waxes, the cuticle, and cell walls. Cellulases, which can hydrolyze crystalline cellulose in the plant cell wall, are among these hydrolytic enzymes. Here, we provide RNAi-based evidence to show that cellulases b...