Isolation and identification of potato spindle tuber viroid in Egypt
In Egypt, potato spindle tuber viroid (EPPO A2 organism) was isolated and identified. Potato plants produced from potato tubers with spindle shape and severe growth crack and tomato showing leaf curl and severe stunting were used for the isolation. On the basis of symptomatology and host range, mode of transmission, stability properties and separation by polyacrylamide gel electrophoresis (PAGE), the samples were considered to contain an isolate of potato spindle tuber viroid.
Arab and Near East Newsletter 1991, No. 13 p. 31.