Biology of Southern rice black‐streaked dwarf virus: a novel fijivirus emerging in East Asia

Abstract

Southern rice black‐streaked dwarf virus (SRBSDV) was first reported in southern China in 2001 and causes a striking disease on rice and maize that leads to serious yield losses in several East Asian countries, such as China, Vietnam and Japan. A large research effort has been directed to understanding the virus and controlling the disease. Its geographic distribution, disease cycle via its insect vector, genome organization, relationship with host plants, and epidemiology are summarized in this review and the important role played by the vector, the white‐backed planthopper (Sogatella furcifera), is emphasized. Countermeasures to control the disease that have been developed and applied include molecular detection for precise forecasting, chemical, physical, and ecological pest management. There is widespread insecticide resistance in the vector population but it is hoped that current efforts to develop rice cultivars resistant to the virus will eventually provide effective and cost‐effective control.

Molecular Characterization of Vitellogenin and Its Receptor in Sogatella furcifera, and Their Function in Oocyte Maturation

“…Furthermore, S. furcifera is a vector of the southern rice blackstreaked dwarf virus (SRBSDV) (Zhou et al, 2008). SRBSDV causes rice plants to produce small spikes with few, or no, rice grains, thereby drastically reducing rice yields (Lv et al, 2017). It is strategic to control plant diseases by controlling disease vectors (Hu et al, 2019a).…”

Symptoms and yield loss caused by rice stripe mosaic virus

“…), rice gall dwarf virus (RGDV, transmitted in a persistent manner by N. cincticeps , N. nigropictus , Recilia dorsalis , and some other Nephotettix spp. ), rice black-streaked dwarf virus (RBSDV, transmitted in a persistent manner primarily by the planthopper, Laodelphax striatellus , U. sapporonus and Ribautodelphax albifascia ) and southern rice black-streaked dwarf virus (SRBSDV, transmitted by Sogatella furcifera in a persistent propagative manner) [3, 5, 6, 10]. Leaf tensile strength and stiffness, which mainly depend on cellulose, hemicellulose and lignin contents, are also related to hormonal changes in plants [11–13].…”

“…Rice virus diseases have the characteristics of burstiness and destructiveness, which cause intermittent disasters in eastern and southeastern Asia. For example, RSV and RBSDV transmitted by the small brown planthopper Laodelphax striatellus caused serious damage to rice production in the 1960s and 2000s [3, 10, 31–35], and RDV and RYSV transmitted by leafhoppers in the 1980s are widespread in Vietnam, China and Japan [3]. Since 2009, SRBSDV has rapidly spread and has caused serious rice losses in northern Vietnam and southern China [36].…”

Emergence of Southern Rice Black-Streaked Dwarf Virus in the Centuries-Old Chinese Yuanyang Agrosystem of Rice Landraces

“…Southern rice black-streaked dwarf virus (SRBSDV) causes the emergent rice black-streaked dwarf disease that has for the last decade been threatening rice-growing areas of northern Vietnam, southern Japan and southern, central and eastern China [1,2,3,4]. While the first report of black-streaked dwarf disease was in 2001 from a Chinese rice field in Guangdong, SRBSDV was only shown to be a novel fijivirus in 2008 [5,6].…”

“…While the first report of black-streaked dwarf disease was in 2001 from a Chinese rice field in Guangdong, SRBSDV was only shown to be a novel fijivirus in 2008 [5,6]. Symptoms of SRBSDV infections include severe stunting, darkening of leaves, and white waxy or black-streaked swellings along stem veins that can lead to 30–50% rice yield losses [1,2]. The virus is transmitted by the white-backed planthopper Sogatella furcifera , but is not seed transmissible [2].…”