Features of the relationship between Tomato severe rugose begomovirus and Bemisa tabaci MEAM1 reveal that the virus is acquired during a probe lasting only one minute

Toloy, R. S.; Mituti, Tatiana; Freitas, D. M. S.; Maluta, Nathalie Kristine Prado; Silva, Talita Nicola Zocca; Lopes, João Roberto Spotti; Fereres, Alberto; Rezende, J. A. M.

doi:10.1007/s10658-017-1388-1

Cited by 16 publications

(13 citation statements)

References 27 publications

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“…In contrast, individuals of B. tabaci become viruliferous at only about 12–15 h after feeding in ToSRV‐infected plants and retain the ability to transmit the virus for longer than the reported 3 days for ToCV (e.g. Toloy et al ., ). The similarity of the spatial and temporal disseminations of golden mosaic and yellowing diseases may be due to the high frequency of insecticide spraying, which largely eliminates secondary dissemination.…”

Section: Discussionmentioning

confidence: 97%

Temporal and spatial progress of the diseases caused by the crinivirus tomato chlorosis virus and the begomovirus tomato severe rugose virus in tomatoes in Brazil

et al. 2018

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Efficient management of whitefly‐borne diseases remains a challenge due to the lack of a comprehensive understanding of their epidemiology, particularly of the diseases tomato golden mosaic and tomato yellowing. Here, by monitoring 16 plots in four commercial fields, the temporal and spatial distribution of these two diseases were studied in tomato fields in Brazil. In the experimental plots these diseases were caused by tomato severe rugose virus (ToSRV) and tomato chlorosis virus (ToCV), respectively. The incidence of each virus was similar in the plots within a field but varied greatly among fields. Plants with symptoms for both diseases were randomly distributed in three of four spatial analyses. The curves representing the progress of both diseases were similar and contained small fluctuations, indicating that the spread of both viruses was similar under field conditions. In transmission experiments of ToSRV and ToCV by Bemisia tabaci MEAM1 (former biotype B), these viruses had a similar transmission rate in single or mixed infections. It was then shown that primary and secondary spread of ToCV were not efficiently controlled by insecticide applications. Finally, in a typical monomolecular model of disease progress, simulation of the primary dissemination of ToSRV and ToCV showed that infected plants were predominantly randomly distributed. It is concluded that, although the manner of vector transmission differs between ToSRV (persistent) and ToCV (semipersistent), the main dispersal mechanisms are most probably similar for these two diseases: primary spread is the predominant mechanism, and epidemics of these diseases have been caused by several influxes of viruliferous whiteflies.

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Section: Discussionmentioning

confidence: 97%

Temporal and spatial progress of the diseases caused by the crinivirus tomato chlorosis virus and the begomovirus tomato severe rugose virus in tomatoes in Brazil

et al. 2018

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“…In the present study, the rapid increase in the incidence of the disease might be attributable to the increase in the vector population, rather than to the virus latent period in B. tabaci. The latent period of begomoviruses in the whitefly B. tabaci varies from 12 to 24 h (Toloy et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

Etiology, occurrence and epidemiology of a begomovirus disease in passionflower in the southwest of Bahia

Rodrigues

Sobrinho

Mituti

et al. 2019

Sci. agric. (Piracicaba, Braz.)

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Severe mosaic symptoms, accompanied by yellow spots, abnormally small leaves, fruit malformation and cracking, reduced plant growth, and high levels of whitefly (Bemisia tabaci MEAM1) infestation were observed in passionflower (Passiflora edulis) orchards in southwestern Bahia, Brazil. The aim of this work was to identify the species of begomovirus infecting the passionflowers, its prevalence in southwestern Bahia, and the spatial and temporal dynamics of the disease. Leaf samples from symptomatic plants collected at 57 orchards located in ten counties were evaluated by PCR for begomovirus infection. Complete nucleotide sequences of DNA-A for two isolates revealed 97 % identity with Passionfruit severe leaf distortion virus (PSLDV). The occurrence of PSLDV in 57 orchards was evaluated based on the presence of characteristic disease symptoms. Approximately 235,000 visually assessed plants exhibited symptoms characteristic of begomovirus infection. Epidemiological studies, conducted in two orchards in Dom Basílio County, showed that disease progress was relatively slow until 121 days after transplanting (DAT), but more rapid in the following 35 days, reaching 100 % infected plants by 156 DAT. The exponential model was fitted to the temporal dynamic of the disease for both areas. An aggregated pattern of diseased plants was predominant for almost all evaluations. It is possible that the primary and secondary spread of the pathogen occurred concurrently during the epidemic progression in both areas, especially late in the season. Containment measures to prevent the virus and the vector from spreading to other passionfruit producing areas in Brazil should be implemented.

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“…Tomato (Solanum lycopersicum L.) is widely cultivated in the tropical and subtropical regions of the world. Brazil is the eighth largest tomato producer worldwide, and the occurrence of phytosanitary problems is a limiting factor for its production (Toloy et al, 2018). Among the most frequent pests, the whitefly (Bemisia tabaci biotype B and B. argentifolii Bellows & Perring [Hemiptera: Aleyrodidae]) is considered as an important insect pest; it causes direct damage due to loss of the photosynthetically active area, and leads to yield losses (Desneux et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Tomato genotype resistance to whitefly mediated by allelochemicals and Mi gene

Neiva

Silva

Resende

et al. 2019

Chil. j. agric. res.

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Allelochemicals and Mi, nematode-resistant gene, are found in wild tomato species and can provide resistance to insect pests. The aim of this study was to check the resistance of tomato (Solanum lycopersicum L.) genotypes with different foliar allelochemical contents (acylsugar and/or zingiberene) associated with and not associated with the Mi gene against the whitefly (Bemisia tabaci biotype B). Fifteen tomato genotypes were tested for resistance against whitefly (

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Features of the relationship between Tomato severe rugose begomovirus and Bemisa tabaci MEAM1 reveal that the virus is acquired during a probe lasting only one minute

Cited by 16 publications

References 27 publications

Temporal and spatial progress of the diseases caused by the crinivirus tomato chlorosis virus and the begomovirus tomato severe rugose virus in tomatoes in Brazil

Temporal and spatial progress of the diseases caused by the crinivirus tomato chlorosis virus and the begomovirus tomato severe rugose virus in tomatoes in Brazil

Etiology, occurrence and epidemiology of a begomovirus disease in passionflower in the southwest of Bahia

Tomato genotype resistance to whitefly mediated by allelochemicals and Mi gene

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