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Research Project: Characterization and Detection of Viruses that Impact the Exchange and Curation of Plant Germplasm

Location: National Germplasm Resources Laboratory

Title: A review on streak mosaic, a misdiagnosed and emerging disease of sugarcane

Author
item DAUGROIS, JEAN - Cirad, France
item ROUMAGNAC, PHILIPPE - Cirad, France
item JULIAN, CHARLOTTE - Cirad, France
item FILLOUX, DENIS - Cirad, France
item PUTRA, LILIK - Indonesian Agency For Agricultural Research And Development
item Mollov, Dimitre
item ROTT, PHILIPPE - Cirad, France

Submitted to: Phytopathology
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 11/9/2023
Publication Date: 4/22/2024
Citation: Daugrois, J., Roumagnac, P., Julian, C., Filloux, D., Putra, L., Mollov, D.S., Rott, P. 2024. A review on streak mosaic, a misdiagnosed and emerging disease of sugarcane. Phytopathology. https://doi.org/10.1094/PHYTO-08-23-0291-RVW.
DOI: https://doi.org/10.1094/PHYTO-08-23-0291-RVW

Interpretive Summary: This article reviews the history of sugarcane mosaic disease and the distribution and diversity of sugarcane streak mosaic virus (SCSMV). We discuss the recent detection of SCSMV in Africa and its potential to threaten sugarcane production. Two incidences of SCSMV in the USA highlights the importance of germplasm quarantine protocols, and the need for additional vigilance in testing for this virus.

Technical Abstract: Sugarcane streak mosaic virus (SCSMV), now assigned to the genus Poacevirus of the Potyviridae family, was reported for the first time in 1932 in Louisiana and was believed to be strain F of sugarcane mosaic virus (SCMV) for more than six decades. SCMV-F was renamed SCSMV in 1998 after partial sequencing of its genome and phylogenetic investigations. Following the development of specific molecular diagnostic methods in the 2000s, SCSMV was recurrently found in sugarcane exhibiting streak mosaic symptoms in numerous Asian countries, but not in the Western hemisphere or in Africa. In this review, we give an overview of the current knowledge on this disease and the progression in research on SCSMV. This includes symptoms, geographical distribution and incidence, diagnosis and genetic diversity of the virus, epidemiology, as well as control. Finally, we highlight future challenges as sugarcane streak mosaic has recently been found in Africa where this disease represents a new threat to sugarcane production.