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Resumen de Simultaneous detection of four viruses affecting apple and pear by molecular hybridization using a polyprobe

Thor Vinícius Martins Fajardo, Osmar Nickel

  • English

    The viruses Apple stem grooving virus (ASGV), Apple chlorotic leaf spot virus (ACLSV), Apple stem pitting virus (ASPV) and Apple mosaic virus (ApMV) are common in apples and pears and main targets of detection in propagation materials. This study aimed at demonstrating the usefulness of the hybridization method with a non-radioactive probe for simultaneous detection of these four viruses. The sensitivity of this method was sufficiently high enabling the detection of ASGV, ACLSV, ASPV and ApMV in total RNA extracted from infected samples. The probe specificity was confirmed by reaction with homologous viral cDNA, individually cloned for each virus.

  • português

    Os vírus Apple stem grooving virus (ASGV), Apple chlorotic leaf spot virus (ACLSV), Apple stem pitting virus (ASPV) e Apple mosaic virus (ApMV) são comuns em macieiras e pereiras e alvos prioritários da detecção em materiais propagativos. Este trabalho objetivou demonstrar a viabilidade do método de hibridização com uma sonda não-radioativa para a detecção simultânea desses quatro vírus. A sensibilidade deste teste foi suficientemente alta para permitir a detecção do ASGV, ACLSV, ASPV e ApMV em RNA total extraído de amostras infectadas. A especificidade da sonda foi confirmada pela reação com cDNA viral homólogo, individualmente clonado, para cada vírus.


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