Rice black streaked dwarf virus

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rice plants with symptoms of Rice Black Streaked Dwarf Virus (note the dark green coloration) (click on image to enlarge it)
Author(s): William M. Brown Jr.
Source: IPM Images
rice stem with symptoms of Rice black streaked dwarf virus (note the black streaks and the waxy galls along the veins) (click on image to enlarge it)
Author(s): William M. Brown Jr.
Source: IPM Images

Rice black-streaked dwarf virus (RBSDV)

The virus causes the rice black-streaked dwarf disease in eastern Asia and sporadic, but serious outbreaks have been reported. Infected rice plants are stunted with dark green, deformed leaves containing black or waxy white galls on the underside of the leaf blades and stems. It also infects other cereals like maize or wheat. In maize it also causes outbreaks and symptoms similar to those of Maize rough dwarf virus, a closely related virus. Both viruses cause the maize rough dwarf disease.

RBSDV is transmitted by planthoppers in a circulative manner, mainly by the white-backed planthopper and the small brown planthopper.

The particles are icosahedral, doublelayered and about 75-80 nm large with 10 double-stranded RNA segments. See also the related Southern rice black-streaked dwarf virus.

For a review see Wu et al. (2020).

Vernacular names
• English: Rice black-streaked dwarf virus
• Español: virus del enanismo de rayas negras del arroz