Manejo de epifitias del Virus de la mancha anular de la papaya utilizando barreras de Zea mays L. en Carica papaya L. []. Cabrera, D., Universidad Central. del virus de la mancha anillada del papayo (PRSV) que infecta Carica papaya L. en El virus de la mancha anular de la papaya (Papaya Ringspot Potyvirus. Epiphyte management of Papaya ringspot virus using Zea mays L. barriers in Carica papaya L. Rev. Protección Veg. [online]. , vol, n.2, pp.

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A modified bootscan algorithm for automated identification of recombinant sequences and recombination breakpoints. Retrieved from ” https: The applications of both antiviral products were able to attenuate the severity produced by the PRSV up to d Figure 1.

Papaya ringspot virus

Anupar through quarantine and geographic displacement of cropland is common and has occurred in Hawaii, the Philippines and Brazil. Control of papaya ringspot virus in papaya. These plants were assessed for the presence and intensity of ringspot symptoms, using a graduated scale of Differential protection against papaya ringspot virus isolates in coat protein gene transgenic papaya and classically cross-protected papaya.

Evaluations The severity of the damage produced by the virus was found by applying a scale degrees: Morpho agronomic evaluations Two plants were selected for each plot, and the following measurements were made: The epidemiology of PRSV-P in papaya is similar to that of other non-persistent viruses and it is transmitted directly from papaya to papaya Bateson et al.

Phylogenetic analysis The differences in the nucleotide similarity between the PRSV isolates from each location in Norte de Santander are reflected in the phylogenetic tree that groups the isolates into two different clades Fig. Papaya disease caused by viruses In: Botanically, Carica papaya L.


A phylogenetic analysis was conducted initially with 21 new CP sequences of PRSV from Norte de Santander, including 54 isolates reported in 11 different countries obtained from the GenBank database. Services on Demand Article. The preventive effect of Inhibitovir applications can attenuate and reduce disease symptoms, even in those plants that were infected prior manchz treatment.

This could improve the yields obtained in papaya cv.

Assessment of Cuban papaya (Carica papaya L.) accessions against ringspot

Hospedantes de cepas del virus de la mancha anillada de la lechosa en Venezuela. In order to implement successful vector control, frequent preventative sprays are required, which is rarely done. Services on Demand Journal.

The university was highly motivated to help save the Hawaiian papaya industry, and consequently took a leading role in pushing for commercialization of the fruit. There are two transgenic varieties of papaya, both of which were created by Dennis Gonsalves [22] and his team and were introduced for production in May 1, Commercial growers again relocated to the Hamakua coast but with only limited success.

The emission of flowers per mo was increased considerably in the treated plants up to d. The PRSV produced a reduction in the number of fruits in the untreated plants, while in the plants treated with Q VI and Inhibitovir, similar amounts of fruits were obtained without significant differences among them but with significant difference from the control performance Figure 3.

This method was employed in the development of transgenic papaya.


Papaya ringspot virus – Wikipedia

Characterising Cuban papaya accessions Carica papaya L. This is usually just a temporary avoidance of the disease, which eventually spreads to the new fields. The papaya Carica papaya L. The low proportion of nucleotide substitution between non-synonymous and synonymous sites indicates a selection for the conservation of the amino acid sequence, or negative selection Kryazhimskiy and Plotkin, Carica papaya; papaya; papaya diseases; Q VI; red Maradol; viral inhibitor. On the evolution and molecular epidemiology of the potyvirus papaya ring-spot virus.

In the first case, the aligned sequences in the FASTA format were uploaded to the remote server datamonkey http: Studies on the molecular evolution of viruses are essential for understanding their biological characteristics, changes in virulence, anualr ranges and their emergence as new epidemics.

The field application of a new antiviral formulation offers a new alternative for efficient PRSV control, which can be included in integrated pest management.

Because PRSV is a non-persistent virus and is consequently transmitted to healthy plants by aphids within a very short time period, insecticidal control is difficult and impractical. This confirmed the information reported by Anulxr Caribbean about the agronomic parameters of cv.

The virus emerged in commercial farms in and by production in Puna was impossible. However, inoculation of the mild strain also caused pathogenesis on the papaya plants.