First report of <i>Tomato brown rugose fruit virus</i> in tomato in Argentina

Obregon, Veronica Gabriela; Ibañez, J.M.; Lattar, T. E.; Juszczak, Samantha; Groth‐Helms, Deborah

doi:10.1002/ndr2.12203

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…Despite this loss of fitness in susceptible tomato plants, the ability of ToBRFV to overcome resistance has enabled it to out-compete TMV and ToMV because host populations have become dominated by plants carrying Tm-2 2 (Section 1). This competitiveness in plant populations protected against TMV and ToMV, combined with its high infectivity, has helped ToBRFV spread via the world's trading networks to almost all tomato-growing regions, with the present exception, at least currently, of Australia [47,48].…”

Section: Why We Need Rapidly Deployable Approaches To Counter the Eme...mentioning

confidence: 99%

Engineered Resistance to Tobamoviruses

Carr

2024

Viruses

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Tobacco mosaic virus (TMV) was the first virus to be studied in detail and, for many years, TMV and other tobamoviruses, particularly tomato mosaic virus (ToMV) and tobamoviruses infecting pepper (Capsicum spp.), were serious crop pathogens. By the end of the twentieth and for the first decade of the twenty-first century, tobamoviruses were under some degree of control due to introgression of resistance genes into commercial tomato and pepper lines. However, tobamoviruses remained important models for molecular biology, biotechnology and bio-nanotechnology. Recently, tobamoviruses have again become serious crop pathogens due to the advent of tomato brown rugose fruit virus, which overcomes tomato resistance against TMV and ToMV, and the slow but apparently inexorable worldwide spread of cucumber green mottle mosaic virus, which threatens all cucurbit crops. This review discusses a range of mainly molecular biology-based approaches for protecting crops against tobamoviruses. These include cross-protection (using mild tobamovirus strains to ‘immunize’ plants against severe strains), expressing viral gene products in transgenic plants to inhibit the viral infection cycle, inducing RNA silencing against tobamoviruses by expressing virus-derived RNA sequences in planta or by direct application of double-stranded RNA molecules to non-engineered plants, gene editing of host susceptibility factors, and the transfer and optimization of natural resistance genes.

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Section: Why We Need Rapidly Deployable Approaches To Counter the Eme...mentioning

confidence: 99%

Engineered Resistance to Tobamoviruses

Carr

2024

Viruses

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“…This emerging tobamovirus was first discovered to infect tomatoes in Jordan and Israel in 2014–2015 [ 3 , 4 ]. Since then, disease outbreaks caused by ToBRFV have been reported in at least 25 countries in five continents, including Asia [ 5 , 6 , 7 , 8 , 9 , 10 ], Africa [ 11 ], Europe [ 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ], North America [ 23 , 24 , 25 , 26 , 27 ], and South America [ 28 ]. A handful of other countries also reported outbreaks through the European and Mediterranean Plant Protection Organization [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Tomato Germplasm against Tomato Brown Rugose Fruit Virus and Identification of Resistance in Solanum pimpinellifolium

Jaiswal,

Chanda,

Gilliard

et al. 2024

Plants

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The tomato is one of the most important vegetable crops grown worldwide. Tomato brown rugose fruit virus (ToBRFV), a seed-borne tobamovirus, poses a serious threat to tomato production due to its ability to break the resistant genes (Tm-1, Tm-2, Tm-22) in tomatoes. The objective of this work was to identify new resistant source(s) of tomato germplasm against ToBRFV. To achieve this aim, a total of 476 accessions from 12 Solanum species were tested with the ToBRFV US isolate for their resistance and susceptibility. As a result, a total of 44 asymptomatic accessions were identified as resistant/tolerant, including thirty-one accessions of S. pimpinellifolium, one accession of S. corneliomulleri, four accessions of S. habrochaites, three accessions of S. peruvianum, and five accessions of S. subsection lycopersicon hybrid. Further analyses using serological tests identified four highly resistant S. pimpinellifolium lines, PI 390713, PI 390714, PI 390716, and PI 390717. The inheritance of resistance in the selected lines was verified in the next generation and confirmed using RT-qPCR. To our knowledge, this is a first report of high resistance to ToBRFV in S. pimpinellifolium. These new genetic resources will expand the genetic pool available for breeders to develop new resistant cultivars of tomato against ToBRFV.

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“…Tomato brown rugose fruit virus (ToBRFV) is a relatively new member in the genus Tobamovirus, family Virgaviridae. Since its first discovery in the Middle East during the 2014-2015 growing season [3,4], the virus has been reported in approximately 40 countries [5,6], including Asia [7][8][9][10], Europe [11][12][13][14][15][16][17][18][19][20][21][22], North America [23][24][25][26], South America [27], Africa [28], and Oceania [29]. The distribution of the virus is likely far greater than the official reports, given that tomato and pepper seeds exported from Australia, Thailand, India, Japan, Peru, Ethiopia, Lithuania, and Slovakia were also found to be contaminated [6,30].…”

Section: Introductionmentioning

confidence: 99%

Tomato Brown Rugose Fruit Virus Is Transmissible through a Greenhouse Hydroponic System but May Be Inactivated by Cold Plasma Ozone Treatment

Zhou,

Gilliard,

Ling

2024

Horticulturae

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Tomato brown rugose fruit virus (ToBRFV) is an emerging tobamovirus infecting tomatoes and peppers, resulting in a pandemic in recent years. In addition to its abilities of being seed-borne, transmitted mechanically and overcoming current resistance, we speculated other factors may also contribute to such catastrophic effect on tomato production in a hydroponic greenhouse. The objective of this study was to evaluate whether ToBRFV can be transmissible through recirculating hydroponic systems and, more importantly, search for an effective approach to contain its spread. We not only detected ToBRFV in the runoff water samples collected from three greenhouses but also determined the virus’ infectivity through a bioassay. We then conducted a water treatment using cold plasma ozone to assess its efficacy in inactivating ToBRFV. The results showed that, with a high concentration of ToBRFV (inoculum in 1:100 dilution), a prolonged exposure (72 min) to two higher ozone concentrations (0.6 mg/L and 1.0 mg/L) achieved partial effects. With a medium virus concentration (inoculum in 1:1000 dilution), an exposure to ozone for 48 min was sufficient to completely suppress the virus’ infectivity. However, with a low virus concentration (inoculum in 1:10,000 dilution), the virus was completely inactivated even with just a short ozone exposure (24 min). Future work will need to confirm the efficacy of the ozone treatment against ToBRFV as well as its impact on tomato plants in a hydroponic greenhouse.

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First report of Tomato brown rugose fruit virus in tomato in Argentina

Cited by 5 publications

References 8 publications

Engineered Resistance to Tobamoviruses

Engineered Resistance to Tobamoviruses

Evaluation of Tomato Germplasm against Tomato Brown Rugose Fruit Virus and Identification of Resistance in Solanum pimpinellifolium

Tomato Brown Rugose Fruit Virus Is Transmissible through a Greenhouse Hydroponic System but May Be Inactivated by Cold Plasma Ozone Treatment

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