Abstract

This review provides a wide assessment of the present state of knowledge about the potato leafroll luteovirus (PLRV), a pathogen which is seriously devastating potato crops in many parts of the world. The main biological, physical and chemical properties of this virus are described. The transmission of PLRV by aphids, which are the only transmitters of this virus under natural conditions, is characterized. Special attention is given to the control of PLRV through the use of resistant potato cultivars. Recent advances in obtaining resistant transgenic plants are outlined.

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