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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The size of the fruit can weigh between g and 10 kg.
Two plants were selected for each plot, and the following measurements were made: These results suggest a greater evolutionary dynamic for the PRSV isolates from Campo Hermoso due to nucleotide substitutions. This grouping could be due to the closeness between these two departments. The sequences of the primers were: De cada una de las accesiones se muestrearon mensualmente todas las plantas. Netting can pqpaya be used to prevent insect vectors from spreading the virus.
Recombination analysis With the aim of making a statistical validation of the possible recombination event observed from the groupings in the phylogenetic trees, especially for isolate VR3, we analyzed the aligned sequences in a FASTA format with three different methodologies. Recombinations, such as the one found in the VR3 isolate, occur in the majority xnular RNA viruses, are of great evolutionary importance and constitute one of the greatest forces that shape the anukar genomes of plants Sztuba-Solinska et al.
For this inoculation, diseased leaves were macerated in a solution containing a 0.
Value in scale damage obtained after applications of inhibitor and wnular, healing Heal. This could improve the yields obtained in papaya cv. The similarity plot SimPlot Fig. The main conclusions are as follows. 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.
A phylogenetic analysis was conducted initially with 21 new CP sequences of PRSV from Norte de Santander, including 54 isolates reported in xnular different countries obtained from the GenBank database. Molecular characterization of two Cuban isolates of the Papaya ringspot virus by means of coat protein analysis.
Papaya ringspot virus
Development of anulaf in papaya was researched in Hawaii starting in Gutenberg Press, Tarxien, Malta. In most cases the selection for virus populations is negative although, in some instances, a diversifying selection for some plant viruses has been found Chaves-Bedoya et al. Many examples of long-distance spread and establishment of plant virus in new regions or countries can be attributed to seed-borne inoculum transported by the seed trade Wilson, The treatments were as follows: Divergence and conservation of the genomic RNAs of Taiwan and Hawaii strains of papaya ringspot potyvirus.
Hawaiian papaya production has been severely affected twice by PRSV. Papaya seedlings were planted in east to west double rows spaced at 3.
Practices and perspectives of control of Papaya ringspot virus by cross protection. Journal of General VirologyReading, v.
Inhibidor viral para el control del Virus de la mancha anular (PRSV) en Carica papaya L.
Introduction The papaya Carica papaya L. Viral plant pathogens and diseases Potyviruses. Treatments were distributed according to a random block design with five treatments and papqya replicates. On the evolution and molecular epidemiology of the potyvirus papaya ring-spot virus.
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Using “clean”, virus-free seedlings for planting is of very high importance. On the evolution and molecular epidemiology of the potyvirus Papaya ringspot virus. The virus is transmitted by many species of aphids in a non-persistent manner Suzuki et al.
Espino de Paz, A. Even low levels of seed transmission for PRSV can have a great impact since the disease can spread very quickly and can play an mabcha role in the epidemiology and control of PRSV Olarte Castillo et al. The methods of pathogen-derived resistance as cross-protection Wang and Yeh, and transgenic resistance Gonsalves, are effective only for isolates that are genetically related Tennant et al.
The applications of both antiviral products were able to attenuate the severity produced by the PRSV up to d Figure 1.