Detection and partial sequence identification of grapevine leafroll-associated virus-1 in Egypt
Arab Journal of Biotechnology. 2007; 10 (2): 399-408
em Inglês
| IMEMR
| ID: emr-81835
ABSTRACT
Grapevine leafroll-associated virus 1 [GLRaV-1] was detected in the grapevine plants collected from different cultivated areas in Egypt and tested using different serological and molecular tools. Double-antibody sandwich ELISA [DAS-ELISA] was successfully carried out using GLRaV-1 polyclonal antibodies to detect infected plants. PCR with primers designed at the heat shock protein 70 [HSP70] gene region, a fragment of 271 bp of GLRaV-1, was used. Molecular hybridization with non-radioactive probes was used to detect the presence of virus particles. The partial sequence of HSP70 fragment from the Egyptian isolate of GLRaV-1 was performed and showed high identity [95%] with the Australian isolate of GLRaV-1 sequence. The molecular methods used for viral diagnosis showed a higher sensitivity in the detection of GLRaV-1 compared to DAS-ELISA. These procedures may serve as an alternative method for GLRaV-1 detection, due to the weak sensitivity of ELISA test to differentiate between the different isolates
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Índice:
IMEMR (Mediterrâneo Oriental)
Assunto principal:
Vírus de Plantas
/
Plantas Comestíveis
/
Ensaio de Imunoadsorção Enzimática
/
Reação em Cadeia da Polimerase
/
Clonagem Molecular
Idioma:
Inglês
Revista:
Arab J. Biotechnol.
Ano de publicação:
2007
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