Cytological Evidence of the Association of a Geminivirus with the Tomato Yellow Leaf Curl Disease in Tunisia

Abstract

Abstract Samples of tomato plants from Tunisia naturally or artificially infected with the yellow leaf curl disease were examined in thin sections with the electron microscope. Cytological changes were compared with those previously observed in similarly affected tomato plants from Israel. Evidence was obtained that also in Tunisia a non‐mechanically transmissible geminivirus is associated with the disease.