Citrus Viroids and Minor Citrus Viruses in Japan

Abstract

Citrus species grown in Japan are affected by several viruses and viroids, including satsuma dwarf virus, citrus vein enation virus, citrus exocortis viroid, and other citrus viroids. Recently, a comprehensive review was made on the occurrence, history, and research of the following three major citrus viruses in Japan: satsuma dwarf virus, citrus tatter leaf virus (apple stem grooving virus), and citrus tristeza virus (Iwanami 2022). As a sequel, this study reviews the occurrence, history, and research development of citrus viroids as well as minor citrus viruses in and around Japan.