Detection of citrus psorosis ophiovirus in citrus cv. Navel orange in Egypt [electronic resource].

Includes references.

Citrus is one of the most important fruit crops worldwide. Most of the citrus cultivars are grown as grafted plants. Virus pathogens transmitted by grafting as well as insect vectors could cause economic problems. Among graft transmissible diseases that have been reported from Egypt as well as in the rest of the Mediterranean countries; citrus psorosis disease that is of the most serious and remain the most spread disease in Egypt (Roistacher, 1991; Sofy, 2008). In infected trees, scaly bark symptoms appears on the trunk, staining of interior wood of branch and gummy as well as shortened leaf internodes and mottling patterns on leaves (Ghazal et al., 2008; El-Dougdoug et al., 2009). Citrus psorosis virus (CPsV), the type species of the genus Ophiovirus (Vaira et al., 2005), is the putative causal agent of psorosis, a major grafttransmissible disease of citrus (Roistacher, 1993).

Summary in Arabic.

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