First Report of Tomato mosaic virus Isolated From <i>Solanum macrocarpon</i> in Nigeria

Arogundade, Olawale; Aderonmu, Omolara I.; Matthew, Joshua Olumide; Ayo-John, E.-I.

doi:10.1094/pdis-05-17-0727-pdn

Cited by 9 publications

(9 citation statements)

References 2 publications

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“…However, it cannot be excluded that pepper plants harboring these resistances are susceptible to African eggplant-associated virus under different conditions. For example, an isolate of ToBRFV was able to infect pepper plants harboring L 1,3,4 at high temperatures, whereas they were otherwise resistant (5).…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, all pepper accessions harboring a tobamovirus resistance gene/allele showed local but no systemic symptoms (S2 Fig) , and tested negative by DAS-ELISA (Table 4). Therefore, it appears that each individual L 1 , L 2 , L 3 and L 4 gene/allele provided resistance to the novel tobamovirus. Overall, these results showed that resistance against the novel virus is present in both the tomato and pepper germplasm.…”

Section: Table 1 Symptomatology Of Indicator Plants Inoculated Withmentioning

confidence: 99%

“…In tomato, the Tm-1 gene, and the Tm-2 and Tm2 2 alleles, originating from wild tomato species, have been used extensively to protect against tobacco mosaic virus and tomato mosaic virus (11). In pepper, the four L genes or alleles L 1 , L 2 , L 3 and L 4 , each provide resistance to an increasing number of tobamovirus pathotypes (12). Therefore, tomato and pepper accessions harboring these resistances were tested to assess whether the novel tobamovirus poses a threat to these crops.…”

Section: Fig 1 Solanum Macrocarpon Fruit With Diffuse Chlorotic Mottlingmentioning

confidence: 99%

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African eggplant-associated virus: characterization of a novel tobamovirus identified fromSolanum macrocarponand assessment of its potential impact on tomato and pepper crops

Giesbers¹,

Roenhorst²,

Schenk³

et al. 2022

Preprint

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A novel tobamovirus was identified in a fruit ofSolanum macrocarponimported into the Netherlands in 2018. This virus was further characterized in terms of host range, pathotype and genomic properties, because many tobamoviruses have the potential to cause severe damage in important crops. In the original fruit, two different genotypes of the novel virus were present. The virus was able to infect multiple plant species from theSolanaceaefamily after mechanical inoculation, as well as a member of theApiaceaefamily. These species included economically important crops such as tomato and pepper, as well as eggplant and petunia. Both tomato and pepper germplasm were shown to harbor resistance against the novel virus. Since most commercial tomato and pepper varieties grown in European greenhouses harbor these relevant resistances, the risk of infection and subsequent impact on these crops is likely to be low in Europe. Assessment of the potential threat to eggplant, petunia, and other susceptible species needs further work. In conclusion, this study provides a first assessment of the potential phytosanitary risks of a newly discovered tobamovirus, which was tentatively named African eggplant-associated virus.

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Section: Discussionmentioning

confidence: 99%

Section: Table 1 Symptomatology Of Indicator Plants Inoculated Withmentioning

confidence: 99%

Section: Fig 1 Solanum Macrocarpon Fruit With Diffuse Chlorotic Mottlingmentioning

confidence: 99%

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African eggplant-associated virus: characterization of a novel tobamovirus identified fromSolanum macrocarponand assessment of its potential impact on tomato and pepper crops

Giesbers¹,

Roenhorst²,

Schenk³

et al. 2022

Preprint

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“…The occurrence of ToMV is more predominant in pepper than TMV even though both virus species produce similar symptoms on pepper. Typical symptoms include severe stunting of plants with chlorotic mosaic patterns on leaves and fruits [34]. Additional symptoms may vary depending on the plant age, virus strain and environmental condition.…”

Section: Tomato Mosaic Virus (Tomv)mentioning

confidence: 99%

Management of Viruses and Viral Diseases of Pepper (Capsicum spp.) in Africa

Arogundade¹,

Ajose²,

Osijo³

et al. 2020

Capsicum

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Increasing outbreaks of virus species infecting pepper (Capsicum spp.) is a major problem for growers in Africa due to a combination of factors, including expansion of pepper cultivation, abundance of insect vectors and climate change. More than 45 viruses have been identified to infect pepper crops causing economic loss in terms of reduced quality and marketable yield, sometimes up to 100%. The Pepper veinal mottle virus (PVMV), Potato virus Y (PVY) and Cucumber mosaic virus (CMV) are endemic in many countries including Uganda, Mali, Cameroon, Morocco and Nigeria. Current management options for virus infection in Capsicum spp. is by the integration of several approaches. More importantly, eradication of infected plants, cultivation of disease resistant varieties, improved cultural practices and judicious use of insecticides especially when plants are young and easily colonized by vectors. In recent years, eco-friendly control measures are needful to reduce occurrence of virus diseases in Capsicum spp.

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“…Most important begomovirus infections were reported on food crops belonging to dicotyledonous families including Euphorbiaceae (Cassava), Cucurbitaceae (gourds, squash, watermelon and melon), Malvaceae (okra and cotton), Fabaceae (cowpea, mung bean, common bean, lima bean and soybean), Convolvulaceae (potato and sweet potato) and Solanaceae (tobacco, petunia, pepper and tomato) (Inoue-Nagata et al, 2016). In Africa, the viruses reported infecting the eggplant are Tomato mosaic virus (Arogundade et al, 2018), Eggplant severe mottle virus (Ladipo et al, 1988) and the Potyviruses Potato virus X and Potato virus Y and the Tombusvirus Eggplant mottle crinkle virus (Chen et al, 2001). Regarding begomoviruses, very few studies have been carried out on eggplant.…”

Section: Introductionmentioning

confidence: 99%

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2021

JABs

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Objective: Eggplant (Solanum melongena) is one of the important vegetables in Africa and Asia. Begomoviruses are emerging plant viruses that cause significant losses. However, there is little research on begomoviruses infecting eggplant. Therefore, this study aimed at identifying begomoviruses infecting eggplant. Methodology and results: Six samples of virus-like infected eggplants were collected in Ferkessedougou in the North of Cote d'Ivoire. The molecular tests Polymerase Chain Reaction (PCR) and Rolling Circle Amplification (RCA) were performed on the samples. One sample tested positive by PCR and RCA while the five others were negative by PCR for begomoviruses. Products from both tests were sequenced to get partial sequence of begomovirus Pepper yellow vein Mali virus (PepYVMLV) from PCR and two full genome components DNA A and DNA B of PepYVMLV from RCA. The sequences were released in Genbank. Conclusion and application of findings:This study has done the molecular characterization of the complete two genome sequence components DNA A and DNA B of Pepper yellow vein Mali on eggplant. Agro-infection of eggplants with the two components could reveal actual specific symptoms which are caused by PepYVMLV on eggplant. This could help opens possibilities of engineering resistant eggplant to PepYMLV.

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First Report of Tomato mosaic virus Isolated From Solanum macrocarpon in Nigeria

Cited by 9 publications

References 2 publications

African eggplant-associated virus: characterization of a novel tobamovirus identified fromSolanum macrocarponand assessment of its potential impact on tomato and pepper crops

African eggplant-associated virus: characterization of a novel tobamovirus identified fromSolanum macrocarponand assessment of its potential impact on tomato and pepper crops

Management of Viruses and Viral Diseases of Pepper (Capsicum spp.) in Africa

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