Application of spectrophotometry to evaluate the concentration of purified White Spot Syndrome Virus
| Autor: | Qing Zhou, Feng Yang, Yi-Peng Qi |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
biology
medicine.diagnostic_test viruses White spot syndrome Reproducibility of Results Virulence Astacoidea biology.organism_classification Sensitivity and Specificity Virology Virus law.invention White spot syndrome virus 1 Microscopy Electron Transmission Spectrophotometry law Quantitative assay medicine Animals Electron microscope Pathogen |
| Zdroj: | Journal of Virological Methods. 146:288-292 |
| ISSN: | 0166-0934 |
| DOI: | 10.1016/j.jviromet.2007.07.007 |
| Popis: | White Spot Syndrome Virus (WSSV) is a highly virulent pathogen of shrimp. In previous work, a simple and efficient method has been established in our laboratory to purify intact WSSV virions from infected crayfish tissues. To perform studies of WSSV infection mechanism, pathogenesis and gene function by using this purified virion, quantitative assay for the virus becomes increasingly important. In this study, the optical density of the purified virion samples was measured at 600nm wavelength using spectrophotometer and the corresponding concentration was counted by transmission electron microscopy. The statistical results revealed a high correlation between optical density and concentration of WSSV virions (r=0.993; n=5). Finally, a conversion coefficient "f" (3.34x10(8)virions/microl) was obtained and a formula was established: C (virions/microl)=fOD(600)=3.34x10(8)xOD(600), which can be conveniently used to convert the optical density of purified WSSV preparation into the virion concentration. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect