First report of <i>Rice stripe necrosis virus</i> infecting rice in Sierra Leone

Tucker, Mary Evelyn; Celli, Marcos Giovani; Conteh, Amara; Taylor, D. R.; Hébrard, Eugénie; Poulicard, Nils

doi:10.5197/j.2044-0588.2020.041.010

Cited by 4 publications

(5 citation statements)

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“…The isolates from Mali originated from lowland rice fields in the San region, and from pluvial rice plots at Bama in Burkina Faso. Four rice samples previously collected between 2014 and 2019 from Benin (Be2) [ 4 ], Mali (M1-1 and M2-1) [ 5 ] and Sierra Leone (SL254) [ 6 ] were also used in this study. Specifically, Malian isolates have been maintained under greenhouse conditions in separate tube cultures of rice var.…”

Section: Methodsmentioning

confidence: 99%

“…For instance, the rice stripe necrosis virus (RSNV) has recently emerged in America and is re-emerging in Africa. Hence, while RSNV was initially identified in the Ivory Coast in 1983 [ 2 ] and almost undetected since then, characteristic symptoms of crinkling yellow and deformation of rice leaves were recently observed in West-African countries, including Burkina Faso [ 3 ], Benin [ 4 ], Mali [ 5 ] and Sierra Leone [ 6 ]. The incidence of disease ranges locally from 37% to 80% in these African countries.…”

Section: Introductionmentioning

confidence: 99%

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Genetic Diversity of Rice stripe necrosis virus and New Insights into Evolution of the Genus Benyvirus

Bagayoko

Celli

Romay

et al. 2021

Viruses

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The rice stripe necrosis virus (RSNV) has been reported to infect rice in several countries in Africa and South America, but limited genomic data are currently publicly available. Here, eleven RSNV genomes were entirely sequenced, including the first corpus of RSNV genomes of African isolates. The genetic variability was differently distributed along the two genomic segments. The segment RNA1, within which clusters of polymorphisms were identified, showed a higher nucleotidic variability than did the beet necrotic yellow vein virus (BNYVV) RNA1 segment. The diversity patterns of both viruses were similar in the RNA2 segment, except for an in-frame insertion of 243 nucleotides located in the RSNV tgbp1 gene. Recombination events were detected into RNA1 and RNA2 segments, in particular in the two most divergent RSNV isolates from Colombia and Sierra Leone. In contrast to BNYVV, the RSNV molecular diversity had a geographical structure with two main RSNV lineages distributed in America and in Africa. Our data on the genetic diversity of RSNV revealed unexpected differences with BNYVV suggesting a complex evolutionary history of the genus Benyvirus.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Genetic Diversity of Rice stripe necrosis virus and New Insights into Evolution of the Genus Benyvirus

Bagayoko

Celli

Romay

et al. 2021

Viruses

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“…Rice stripe necrosis virus is detected through serological tests such as plate trapped antigen -enzymelinked immunosorbent assay (PTA-ELISA) (Fauquet and Thouvenel, 1983;Maurino et al 2018;Tucker et al 2020) and conventional reverse transcription polymerase chain reaction (RT-PCR) (Lozano and…”

Section: Full Textmentioning

confidence: 99%

“…The vector's resistance structures (cystosores) can remain in the soil for decades (Kanyuka et al 2003;Tamada and Kondo 2013), and are possible sources of inoculum and dissemination through agricultural equipment, which transits from contaminated to uncontaminated areas (Morales et al 1999). There is no evidence of transmission by seeds, nematodes, or the rice mealybug (Ripersia oryzae) (Fauquet et al 1988).Rice stripe necrosis virus is detected through serological tests such as plate trapped antigen -enzymelinked immunosorbent assay (PTA-ELISA) (Fauquet and Thouvenel, 1983;Maurino et al 2018;Tucker et al 2020) and conventional reverse transcription polymerase chain reaction (RT-PCR) (Lozano and…”

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confidence: 99%

Developing a TaqMan real-time RT-PCR protocol for detecting rice stripe necrosis virus in plant material and soil

Moz,

Almeida,

Favero

et al. 2023

Preprint

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Rice is one of the main staple foodstuffs for the world's population; however, several diseases caused by phytopathogens cause yield losses in rice crop. Rice crinkle is an emerging disease in rice cultivation, caused by rice stripe necrosis virus (RSNV). RSNV is transmitted by the soil plasmodiophoromycete, Polymyxa graminis, which can remain in the soil through resistance structures for decades. The symptoms caused by the virus are often confused with other causes, making a correct diagnosis and the adoption of effective management and control measures difficult. RSNV is detected through tests such as plate trapped antigen – enzyme-linked immunosorbent assay (PTA-ELISA) and conventional reverse transcription polymerase chain reaction RT-PCR. The objective of this study was to develop a protocol for RSNV detection via real-time RT-PCR using a TaqMan probe associated with direct sample preparation methods, which has not been published to date. The RT-PCR detection protocol developed was 100–1,000 times more sensitive than conventional RT-PCR, allowing for the detection of RSNV in contaminated plant material and soil. The direct sample preparation method associated with real-time RT-PCR exhibited similar sensitivity to the nucleic acid purification methods.

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“…However, it has been episodically reported in several South and Central American countries, including Colombia, Brazil, Ecuador, Panama, and Argentina [ 34 , 56 , 57 , 58 , 59 , 60 ], causing severe epidemics and leading to up to 40% yield losses [ 60 ]. Notably, characteristic symptoms of crinkling yellow color and deformation of rice leaves were recently observed in West African countries, including Burkina Faso [ 61 ], Benin [ 62 ], Mali [ 63 ], and Sierra Leone [ 64 ], suggesting that RSNV is re-emerging in Africa.…”

Section: The Emergence and Damage Of Various Rice Viruses Worldwidementioning

confidence: 99%

A Review of Vector-Borne Rice Viruses

Wang

Liu

Lyu

et al. 2022

Viruses

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Rice (Oryza sativa L.) is one of the major staple foods for global consumption. A major roadblock to global rice production is persistent loss of crops caused by plant diseases, including rice blast, sheath blight, bacterial blight, and particularly various vector-borne rice viral diseases. Since the late 19th century, 19 species of rice viruses have been recorded in rice-producing areas worldwide and cause varying degrees of damage on the rice production. Among them, southern rice black-streaked dwarf virus (SRBSDV) and rice black-streaked dwarf virus (RBSDV) in Asia, rice yellow mottle virus (RYMV) in Africa, and rice stripe necrosis virus (RSNV) in America currently pose serious threats to rice yields. This review systematizes the emergence and damage of rice viral diseases, the symptomatology and transmission biology of rice viruses, the arm races between viruses and rice plants as well as their insect vectors, and the strategies for the prevention and control of rice viral diseases.

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First report of Rice stripe necrosis virus infecting rice in Sierra Leone

Cited by 4 publications

References 5 publications

Genetic Diversity of Rice stripe necrosis virus and New Insights into Evolution of the Genus Benyvirus

Genetic Diversity of Rice stripe necrosis virus and New Insights into Evolution of the Genus Benyvirus

Developing a TaqMan real-time RT-PCR protocol for detecting rice stripe necrosis virus in plant material and soil

A Review of Vector-Borne Rice Viruses

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