Rapid detection of Bombyx mori bidensovirus by loop-mediated isothermal amplification based lateral flow dipstick assay for field applications. 2019

Peng Lü, and Yaling He, and Feng Lin, and Ye Pan, and Qian Yu, and Zhongjian Guo, and Chengjun Li, and Huiying Wang, and Qin Yao, and Yan Fu, and Keping Chen
Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China; Guangdong Silda Pupa and Silk Inc., Shaoguan, China. Electronic address: penglu@ujs.edu.cn.

Bombyx mori bidensovirus (BmBDV), is the only bipartite single-stranded DNA (ssDNA) insect virus reported to date. BmBDV causes fatal flacherie disease in silkworm, resulting in large economic losses to sericulture. We developed a loop-mediated isothermal amplification with lateral flow dipstick (LAMP-LFD) method that can successfully and rapidly detect BmBDV DNA with a low limit of detection (5 fg, 400 copies of the BmBDV genome). The method was evaluated and improved for direct field diagnosis using silkworm faeces. In the field, the actual limit of detection was ∼50 fg (4000 copies of the BmBDV genome). The results demonstrated that, compared with traditional methods for BmBDV detection, our new LAMP-LFD method was much more rapid, sensitive and cost-effective, with less dependence on equipment, making it easier to use. The method has potential to be translated into a new diagnostic product for field applications in the sericulture industry.

UI MeSH Term Description Entries
D007304 Insect Viruses Viruses infecting insects, the largest family being BACULOVIRIDAE. Insect Virus,Virus, Insect,Viruses, Insect
D005243 Feces Excrement from the INTESTINES, containing unabsorbed solids, waste products, secretions, and BACTERIA of the DIGESTIVE SYSTEM.
D005814 Genes, Viral The functional hereditary units of VIRUSES. Viral Genes,Gene, Viral,Viral Gene
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012831 Bombyx A genus of silkworm MOTHS in the family Bombycidae of the order LEPIDOPTERA. The family contains a single species, Bombyx mori from the Greek for silkworm + mulberry tree (on which it feeds). A native of Asia, it is sometimes reared in this country. It has long been raised for its SILK and after centuries of domestication it probably does not exist in nature. It is used extensively in experimental GENETICS. (From Borror et al., An Introduction to the Study of Insects, 4th ed, p519) Bombyx mori,Silkmoths,Silkworms,Silkmoth,Silkworm,Bombyx morus,Bombyxs,mori, Bombyx
D017931 DNA Primers Short sequences (generally about 10 base pairs) of DNA that are complementary to sequences of messenger RNA and allow reverse transcriptases to start copying the adjacent sequences of mRNA. Primers are used extensively in genetic and molecular biology techniques. DNA Primer,Oligodeoxyribonucleotide Primer,Oligodeoxyribonucleotide Primers,Oligonucleotide Primer,Oligonucleotide Primers,Primer, DNA,Primer, Oligodeoxyribonucleotide,Primer, Oligonucleotide,Primers, DNA,Primers, Oligodeoxyribonucleotide,Primers, Oligonucleotide
D021141 Nucleic Acid Amplification Techniques Laboratory techniques that involve the in-vitro synthesis of many copies of DNA or RNA from one original template. DNA Amplification Technic,DNA Amplification Technique,DNA Amplification Techniques,Nucleic Acid Amplification Technic,Nucleic Acid Amplification Technique,RNA Amplification Technic,RNA Amplification Technique,RNA Amplification Techniques,Amplification Technics, Nucleic Acid,Amplification Techniques, Nucleic Acid,DNA Amplification Technics,Nucleic Acid Amplification Technics,Nucleic Acid Amplification Test,Nucleic Acid Amplification Tests,RNA Amplification Technics,Technics, Nucleic Acid Amplification,Techniques, Nucleic Acid Amplification,Amplification Technic, DNA,Amplification Technic, RNA,Amplification Technics, DNA,Amplification Technics, RNA,Amplification Technique, DNA,Amplification Technique, RNA,Amplification Techniques, DNA,Amplification Techniques, RNA,Technic, DNA Amplification,Technic, RNA Amplification,Technics, DNA Amplification,Technics, RNA Amplification,Technique, DNA Amplification,Technique, RNA Amplification,Techniques, DNA Amplification,Techniques, RNA Amplification
D025202 Molecular Diagnostic Techniques MOLECULAR BIOLOGY techniques used in the diagnosis of disease. Molecular Testing,Molecular Diagnostic Technics,Molecular Diagnostic Testing,Diagnostic Technic, Molecular,Diagnostic Technics, Molecular,Diagnostic Technique, Molecular,Diagnostic Techniques, Molecular,Diagnostic Testing, Molecular,Molecular Diagnostic Technic,Molecular Diagnostic Technique,Technic, Molecular Diagnostic,Technics, Molecular Diagnostic,Technique, Molecular Diagnostic,Techniques, Molecular Diagnostic,Testing, Molecular,Testing, Molecular Diagnostic

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