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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Papaya ringspot virus

Non-persistent viruses are transmitted quickly and easily between plants. Viral diseases represent a major phytosanitary problem, especially those transmitted by insect vectors, such as the Papaya ringspot virus PRSV Potyviridae, Potyviruswhich are considered the most economically important viral disease affecting papaya papata to its geographical distribution in almost all papaya producing regions as well as its high virulence and high yield losses Cabrera, Analyzing the mosaic structure of genes.

It is composed of an analogue base 1. En anularr momento, las accesiones de Tallo morado de Nava y Amarilla de Nava mostraron los mayores de 0. Plant DiseaseSt. Exposure to foreign strains of the virus is a serious risk, as Rainbow papayas have been shown to be susceptible to PRSV from Guam, Taiwan and Thailand. Se the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License.

Knowledge of the nucleotide sequence and genetic diversity is necessary to be able to create control strategies. Anexistence of recombination events in the coat protein was observed. Inhibidor viral; maradol roja; papaya Carica papaya L.


Yields were evaluated at 9 mo after transplanting. Papaya exhibits yellowing, leaf distortion, and severe mosaic. The Papaya ringspot virus PRSVa member of the potyvirus that is transmitted by aphids within the Potyviridae family, is the main limiting factor for papaya Carica papaya L.

Way to Rodas km 4. 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, Services on Demand Journal.

In Colombia, at the sequence level, data on PRSV are scarce, with the report of a few sequences corresponding to the helper component proteinase HC-Pro and the coat protein CP obtained in the departments of Valle del Cauca four sequences and Arauca one sequence Olarte Castillo et al. Roguingor the removal and destruction of infected plants, is a way to control the spread of PRSV. Papaya ringspot virus -P: So far in Hawaii, there has been no breakdown of the coat protein resistance encoded in transgenic strains of papaya.

Papaya ringspot virus – Wikipedia

To reinforce the mechanical inoculation, plants were reinoculated using five aphids Myzus persicae per plant, previously fed on diseased papaya plants Bau et al, ; Cruz, The Papaya ringspot virus PRSV is a very challenging virus to combat and prevents achieving a high productive potential in Carica papaya due to the lack of resistant genes in commercial papaya cultivars such as red Maradol, which originated in Cuba and extends to all America and the Caribbean. Right b plants treated with Inhibitovir showing recovery of flowering.

The average content of bases in the 21 isolates was A, These are the plant growth stages of highest infection risk by PRSV. The viral inhibitor applications made during the cycle of papaya production up to 5 mo involved a significant attenuation of symptoms and damage caused by PRSV on cv. Recombinations have been reported in PRSV in almost all of its genome with the exception of the small region that encodes the protein 6K1. Results showed an increase, with time, in the proportion of affected plants for all accessions.


In PRSV was found in home gardens but efforts were taken to prevent its spread.

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

Phylogenetic relationships between these isolates and PRSV isolates reported in majcha parts of the world were also evaluated. 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.

Research Note Viral inhibitors to control the Papaya ringspot virus on Carica papaya. The results of this study constitute a contribution to the knowledge on the genomic sequences of the region coding for the CP of PRSV virus isolates collected from symptomatic papaya papayaa in the department of Norte de Santander and also present the first analysis of the genetic diversity of this virus in Colombia.