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.
|Published (Last):||22 December 2007|
|PDF File Size:||8.28 Mb|
|ePub File Size:||1.38 Mb|
|Price:||Free* [*Free Regsitration Required]|
El cultivo de la papaya en Los Llanos Orientales de Colombia. A limiting factor for papaya yield worldwide is the disease caused by PRSV.
Literature cited Abdalla, O. Los resultados observados en este trabajo muestran que todas las accesiones evaluadas resultaron sensibles a anulae enfermedad bajo condiciones de campo, aunque con diferencias entre ellas.
The association of a plant virus with seeds provides a convenient means for virus survival and facilitates movement of the virus, including human intervention with harvesting and transporting seeds for subsequent cropping.
This similarities in the different CP regions led to the conclusion that the VR3 isolate black line in Fig. 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.
Possible emergence of new geminiviruses by frequent recombination. Genetic variability of Papaya ringspot virus isolates in Norte de Santander – Colombia.
Symptomatic samples of papaya leaves cv. Sequences of the coat protein gene from Brazilian isolates of Papaya ringspot virus. Studies on the molecular evolution of viruses are essential for understanding their biological characteristics, changes in virulence, geographical ranges and their emergence as new epidemics.
Genetic variability of Papaya ringspot virus isolates in Norte de Santander – Colombia
The results showed the possibility of using this viral inhibitor against PRSV because its effectiveness was comparable to that of the commercial antiviral QVI. Inhibitovir is a commercial product with viricidal action produced by Pqpaya Fitozoosanitaria S. The main objective of this macha was to evaluate pspaya effectiveness of Inhibitovir a new viral inhibitor for the field control of PRSV in papaya cv.
Retrieved from ” https: Annals of Applied Biology. III and Vwere inoculated 10 d before transplant. Assessment of Cuban papaya Carica papaya L. De cada una de las accesiones se muestrearon mensualmente todas las plantas.
This phylogenetic relationship of the PRSV isolates in Norte de Santander suggests a possible transport of plant material and viral isolates between locations and possible recombination events.
The total economic costs of such redistributive costs are unknown, but likely significant. Corpoica; Sena; Asohofrucol, Bogota.
Antiviral nutrient solution for plants. Journal of Biotecnology and BiodiversityTocantins, v. How to cite this article. Journal of General VirologyReading, v. Subsequently, non-commercial fruits were counted, following MINAG quality control specifications. Treatments II and IV and preventive controls, were applied every 15 d, among the first and fourth mo of transplantation.
Disease transmission can also occur by planting infected seedlings in fields where the virus is not present. Both pathotypes are distributed worldwide. It is composed of an analogue base 1. PRSV’s coat protein gene was inserted into highly embryogenic plant tissue by using the newly invented gene gunwhich led to the development of the transgenic linewhich was proven to be effective at controlling Hawaiian strains of PRSV.
It is an herbaceous plant with large leaves and rapid growth.
Papaya ringspot virus
The papaya crop occupies the ninth position of importance for fruit crops Tafur et al. The Plant Health Instructor. This type infects papaya and several members of the melon family Cucurbitaceae. In squash, watermelon and other cucurbits, PRSV-W causes mottling and distortion of leaves and fruit.
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.
In papaya, the leaves develop prominent mosaic and chlorosis on the leaf lamina and water-soaked, oily streaks on the petioles and upper part of the trunk Gonsalves et al. Even low levels of seed transmission for PRSV can have a great impact since the disease can spread very quickly and can play an important role in the epidemiology and control of PRSV Olarte Castillo et al.
The 1, paapya were performed to estimate the reliability of the branching patterns of the trees. Similar results with formulations containing ribavirin have been reported in virus control, by inhibiting the viral messenger RNA guanylation process that stimulates the natural defenses of plants Jean-Claude et al, The number of fruits, total weight, average fruit weight and yield were recorded.
The virus is transmitted by many species anylar aphids in a non-persistent manner Suzuki et al. Inter- and intralineage recombinants are common in natural populations of Turnip mosaic virus. Seed transmission has been observed at rates of 2 infected second generation plants out of Multiple alignment of the nucleotide and deduced amino acid sequences from two clones of each isolate were carried out using the MegAlign program.
This corroborated the idea of using this viral inhibitor as an alternative to counteract the PRSV effect along with integrated pest management IPM in sustainable agriculture.
The analysis was performed by comparing the nucleotide sequences of the region that encode the coat protein CP of nine PRSV isolates from the Villa del Rosario location and 12 isolates from the Campo Hermoso location. La papaya Carica papaya L.