title: [Isolation and characterization of an iridovirus from sick giant salamander (Andrias davidianus)].
abstract: A virus was isolated from cultured sick giant salmander (Andrias davidianus ) in a farm, Shanxi Province, China. Skin ulceration and necrosis of the distal limbs are main clinical symptoms. Virus propagated and caused CPE at 10 degrees C to 30 degrees C in BF-2, CO, CHSE, FHM cells. The optimum condition of replication was in BF-2 cells at 25 degrees C. The virus was proved to be senstive to chloroform, heat, pH3 and pH10 treatment. Viral replication was inhibited by 5-Fluoro-2-deoxyuridine (FUDR). These results indicated that the virus possessed an envelope and DNA as the genome. Electron-microscopic observation of thin-section showed numerous hexagonal viral particles measuring 130 nm to 150 nm in diameter orderly arranged in a lattice form in cytoplasm of BF-2 cells. The particles showed typical iridovirus morphology. A 413 bp fragment was amplified from the viral main capsid protein gene by PCR. The fragments was sequenced and analysed. The results showed the isolate shared more than 96% nucleotide identity with some Ranaviruses. We suggested that this virus was named as Andrias davidianus iridovirus (ADIV) tentatively.
authors.affiliation: Research Center of Aquatic Animal Diseases, Institute of Animal and Plant Quarantine, Chinese Academy of Inspection and Quarantine, Beijing 100029, China. yulinj@szciq.gov.cn
authors.forename: Yu-Lin
authors.initials: YL
authors.lastname: Jiang
authors.forename: Min
authors.initials: M
authors.lastname: Zhang
authors.forename: Hong-Li
authors.initials: HL
authors.lastname: Jing
authors.forename: Long-Ying
authors.initials: LY
authors.lastname: Gao
mesh_terms: D000818:Animals; D001483:Base Sequence; D017994:Iridovirus / Q000235:genetics / Q000302:isolation & purification*; D008969:Molecular Sequence Data; D014562:Caudata / Q000821:virology*