Ocorrência do vírus Rice stripe necrosis virus em lavouras de arroz do Rio Grande do Sul

Maciel, João Leodato Nunes; Moraes, Marcelo Gravina de; Almança, Marcus André Kurtz; Matsumura, Aida Terezinha Santos; Falcade, Johannes Humbertus

doi:10.1590/s0100-41582006000200018

Cited by 12 publications

(7 citation statements)

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“…An active dispersion of the soil-borne vector seems difficult to have occurred in the case of the introduction of Rice stripe necrosis virus (RSNV) in Brazil too. RSNV was first reported in Colombia in 1991 [60] and the second report in South America was in Rio Grande do Sul State in 2001 [61]. Despite the long interval, no more occurrences of RNSV between these two distant points were reported.…”

Section: Studies Casesmentioning

confidence: 99%

The Role of Natural and Human-Mediated Pathways for Invasive Agricultural Pests: A Historical Analysis of Cases from Brazil

Lopes-da-Silva¹,

Sanches²,

Stancioli³

et al. 2014

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Information about the geographic distribution of agricultural pests is the basis for all pest-related agricultural and environmental protection policies. However, often the pest's records are incomplete and uncertain. Even with limitations, the pest records are needed for any country to organize a system for agriculture protection and to mobilize surveillance efforts. The first point is to identify the imminence of biological invasions, which can be accomplished through the collection of data on pest distribution. The basic information to evaluate the predictability of an invasion is geographic distribution and the identification of pathway types associated with the potential invader. Thus, the level of the risk of introduction is assessed more objectively. In this article, cases of introduction of pests were analyzed from published reports in Brazil in terms of their geographic distribution at the time of their introduction. Taking into consideration the country's extensive terrestrial borders, this study attempts to elucidate the role played by different pathways in each bioinvasion. This analysis recognized the limitations of the historical method and underlying uncertainties of each invasion event. Human-mediated pathways were the main source of agricultural pest invasions in Brazil and the country was more a disperser than a receptor of exotic agricultural pests and diseases in South America. A new geographical hotspot (Northern South America and Caribbean Region) for possible invasions was identified.

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Section: Studies Casesmentioning

confidence: 99%

The Role of Natural and Human-Mediated Pathways for Invasive Agricultural Pests: A Historical Analysis of Cases from Brazil

Lopes-da-Silva¹,

Sanches²,

Stancioli³

et al. 2014

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“…In this study the vector was detected only in white oat and rye, possibly because of some failure in the sampling process, since the infection by the virus suggests the presence of the vector. In Brazil, P. graminis had already been detected in wheat, barley, triticale, and rice roots (Dalbosco et al 2002a;Maciel et al 2006). P. graminis is also reported to infect several other important species cultivated around the world, such as rye, sorghum (Sorghum bicolor (L.) Moench), millet (Pennisetum glaucum), corn (Zea mays L.) including wheat, triticale, and rice (Adams and Jacquier 1994;Legréve et al 2000).…”

Section: Discussionmentioning

confidence: 99%

Management of wheat stripe mosaic virus by crop rotation

et al. 2020

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Soil-borne wheat mosaic disease (SBWMD) caused by wheat stripe mosaic virus (WhSMV) is one of the most important viral diseases of wheat in Brazil. Farmers have used crop rotation (CR) successfully to reduce the incidence of many diseases in wheat. CR can contribute along with genetic resistance in the management of SBWMD. The objective of this study was to evaluate the effect of CR in SBWMD incidence and wheat yield as compared with wheat monoculture (W). During 2017 and 2018 growth seasons, in a long-term experiment, W and three CR: W1white oats-wheat; W2vetch-white oats-wheat; and W3black oatsbarley-black oats-wheat were evaluated using three wheat cultivars: BRS Parrudo (resistant), BRS Reponte (moderately resistant) and BRS Guamirim (susceptible). The rainiest season (2018) was more favorable to the development of the disease. In this year, CR W2 and W3 significantly decreased SBWMD incidence by 90% compared to wheat monoculture. Also, grain yield (GY) differences between CR were higher in the rainiest season. GY increases up to 58% (BRS Reponte), 81% (BRS Guamirim) and 106% (BRS Parrudo) in W2 and W3. The use of plant species that are non-hosts of WhSMV may be one of the main factors that contribute to the reduction of SBWMD levels.

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“…Since then, this virus was nearly undetected in the fields in Africa. 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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Ocorrência do vírus Rice stripe necrosis virus em lavouras de arroz do Rio Grande do Sul

Abstract: Ocurrence of Rice stripe necrosis virus in rice crops from Rio Grande do Sul, BrazilA viral disease in rice (Orysa sativa), caused by Rice stripe necrosis virus (RSNV), is reported for the first time in Rio Grande do Sul, Brazil.

Cited by 12 publications

References 0 publications

The Role of Natural and Human-Mediated Pathways for Invasive Agricultural Pests: A Historical Analysis of Cases from Brazil

The Role of Natural and Human-Mediated Pathways for Invasive Agricultural Pests: A Historical Analysis of Cases from Brazil

Management of wheat stripe mosaic virus by crop rotation

A Review of Vector-Borne Rice Viruses

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