First report of peach latent mosaic viroid in Egypt on apple and pear
In Egypt, peach latent mosaic viroid (PLMVd - quarantine status under review) has been detected in apple fruit (Malus domestica cv. Golden Delicious) and pear (Pyrus communis) bark and fruit. This viroid induced canker on bark, scab and streak disease of fruit. The presence of PLMVd was detected by using RT-PCR, followed by southern and dot blot hybridization analysis of the amplified products with a PLMVd cRNA probe. It is noted that trees infected by PLMVd have sporadically been found in commercial orchards of apple and pear. This is the first report of PLMVd in Egypt, and also the first time that this viroid is detected on apple and pear.
Sources
El-Dougdoug, Kh., A. (1998) Occurrence of peach latent mosaic viroid in apple (Malus domestica). Annals of Agricultural Science (Cairo), 43(1), 21-30.
Review of Plant Pathology, 78(2), abstract 1389, p 187.