2025 年 13 巻 4 号 p. 30-48
Roses (Rosa spp.) are among the most widely cultivated ornamental plants globally. However, there have been increasing threats from a wide range of plant viruses. These viral pathogens are taxonomically diverse and include representatives from multiple virus families, infecting roses through varied transmission pathways such as insect vectors, grafting, and propagation materials. Over 26 distinct viruses affecting rose production have been identified globally. These include rose rosette virus, apple mosaic virus, prunus necrotic ringspot virus, and rose cryptic virus 1. Infections result in a wide spectrum of symptoms, including leaf mottling, deformation, growth abnormalities, and floral disruption, which significantly reduce the aesthetic and commercial values of rose plants. Some viruses cause severe systemic effects that lead to plant decline or death, while others establish latent infections that are symptomless. Recent developments in molecular detection techniques, particularly sequencing technologies, have expanded the discovery and characterization of rose-infecting viruses, which reveal complex virus communities within single plants. Mixed infections are increasingly common and often intensify symptom severity. Despite these advances, substantial knowledge gaps regarding the biological behavior, epidemiology, and long-term management of many rose viruses. This review presents a global synthesis of the current understanding of rose-infecting viruses, including their taxonomic classification, method of transmission, geographical distribution, and symptomatic manifestations. It also discusses diagnostic challenges in virus detection, emerging threats linked to global trade, and the imperative for integrated disease management strategies.
