A reverse transcription polymerase chain reaction (RT PCR) was used for detection of infectious hypodermal and haematopoietic necrosis virus (IHHNV) from the gills and subcutaneous tissue of Penaeus vannamei (10-15cm ...A reverse transcription polymerase chain reaction (RT PCR) was used for detection of infectious hypodermal and haematopoietic necrosis virus (IHHNV) from the gills and subcutaneous tissue of Penaeus vannamei (10-15cm in body size) without clinical signs. With primers 77012R and 77353F, a fragment of 356bp of IHHNV was amplified in RT PCR. The amplified product was sequenced and showed more than 98% homologue with the sequences of other IHHNV strains in Gene Bank.展开更多
多聚酶链式反应(PCR)技术是新近建立起来的分子生物学技术。利用特异性引物(Primef)引导特异性 DNA 酶进行扩增,使敏感性提高百万倍,并且快速、特异、易于自动化。因此,它对于早期诊断、传染源筛选、低含量病源感染、病源基因组监测和...多聚酶链式反应(PCR)技术是新近建立起来的分子生物学技术。利用特异性引物(Primef)引导特异性 DNA 酶进行扩增,使敏感性提高百万倍,并且快速、特异、易于自动化。因此,它对于早期诊断、传染源筛选、低含量病源感染、病源基因组监测和高效克隆化等将有突出贡献。本文对其方法、原理、特征及在感染性疾病中的应用现状和前景作一综述。展开更多
文摘A reverse transcription polymerase chain reaction (RT PCR) was used for detection of infectious hypodermal and haematopoietic necrosis virus (IHHNV) from the gills and subcutaneous tissue of Penaeus vannamei (10-15cm in body size) without clinical signs. With primers 77012R and 77353F, a fragment of 356bp of IHHNV was amplified in RT PCR. The amplified product was sequenced and showed more than 98% homologue with the sequences of other IHHNV strains in Gene Bank.
文摘多聚酶链式反应(PCR)技术是新近建立起来的分子生物学技术。利用特异性引物(Primef)引导特异性 DNA 酶进行扩增,使敏感性提高百万倍,并且快速、特异、易于自动化。因此,它对于早期诊断、传染源筛选、低含量病源感染、病源基因组监测和高效克隆化等将有突出贡献。本文对其方法、原理、特征及在感染性疾病中的应用现状和前景作一综述。
