Danos na produção da abobrinha de moita causados pelo Papaya ringspot virus type W e Zucchini yellow mosaic virus

Pereira, Mônica Juliani Zavaglia; Sussel, A. A. B.; Silva, Ricardo Ferreira da; Kuhn, Odair José; Domingues, Fernanda; Rezende, Jorge Alberto Marques

doi:10.1590/s0100-54052007000200016

Cited by 8 publications

(15 citation statements)

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“…The other Brazilian, Chinese, and Thai isolates included in this analysis were six nucleotides longer than Cuba-PR. These differences in the sizes of the CP fragments are due to the insertion of two amino acids in the Brazilian isolates PRSV-W-1, PRSV-W-2, and PRSV-W-3, as previously reported by Inoue Nagata et al (2007), and a deletion of two amino acids in the Cuban isolate IBP-SDo (PORTAL et al 2006). These insertions and deletions in the N-terminal CP region suggest that this region is highly variable and that the gene is subject to nucleotide insertions and deletions (LIMA et al 2002).…”

Section: Resultssupporting

confidence: 80%

“…Caserta plants at 16 days after the inoculation of the Cuba-PR isolate. During plant development, the symptoms became stronger in the young leaves, causing leaf reduction and malformation ( Figure 1A and 1C), as observed by other authors in cucurbit plants infected with PRSV-W (PURCIFULL and HIEBERT , 1979 ;PEREIRA et al, 2007;FREITAS and REZENDE, 2008). In contrast, even after five repetitions of mechanical inoculation, papaya plants did not become infected.…”

Section: Resultssupporting

confidence: 73%

“…To date, more than 30 diseases caused by viruses and viroids infecting plants of the family Cucurbitaceae have been described (LOVISOLO, 1981;PROVVIDENTI, 1996;LECOQ et al, 1998). Among them, the most important are the following: Papaya ringspot virus (PRSV) -strain W (PRSV-W) and strain P (PRSV-P); Watermelon mosaic virus (WMV); Zucchini yellow mosaic virus (ZYMV); Zucchini lethal chlorosis virus (ZLCV); Cucumber mosaic virus (CMV) and Squash mosaic virus (SqMV) MOURA et al, 2001;MANGRAUTHIA et al 2010;OLARTE-CASTILLO et al 2011;PORTAL et al 2006).…”

Section: Introductionmentioning

confidence: 99%

“…The disease symptoms in pumpkin are characterized by an intense mosaic, a drastic reduction of the leaves and vegetative development and a reduction in production and fruit quality, resulting in losses of up to 100%, depending on the age at which the plants are infected and also of the spread in the areas in which it occurs. The fruits may also present deformation and changes in color (PEREIRA et al, 2007;FREITAS andREZENDE, 2008, RAHMAN et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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First report and molecular characterization of an isolate of papaya ringspot virus (PRSV-W) detected in pumpkin in Cuba

Rodríguez-Martínez¹,

Figueira²,

Duarte³

et al. 2015

Biosci. J.

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ABSTRACT:In this work, a virus isolate collected from pumpkin plants (Cucurbita pepo L.), showing severe symptoms of mosaic and leaf deformation, grown in Cuba, was analyzed using indicator plants, electron microscopy, and phylogenetic analysis. Plants of pumpkin, cv. Caserta, inoculated with this virus isolate showed mosaic, leaf distortion and blistering symptoms, whereas papaya plants were immune and did not show any symptoms. A transmission electron microscopic examination of leaf dip preparations made from infected pumpkin leaves revealed the presence of elongated and flexuous particles, approximately 780-800 x 12 nm in size. Genomic fragments containing the coat protein (CP) and HC-Pro genes, amplified by specific primers for Papaya ringspot virus, W strain (PRSV-W), showed amino acid identities of both genes higher than 94% when compared to other PRSV-W isolates from America. In the phylogenetic tree, this virus isolate has grouped with other virus isolates from America, Australia, and India and was more distant from the Asian isolates. Taken together, the analyses allow the conclusion that this virus isolate is a W strain of PRSV, detected for the first time in Cuba.

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Section: Resultssupporting

confidence: 80%

Section: Resultssupporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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First report and molecular characterization of an isolate of papaya ringspot virus (PRSV-W) detected in pumpkin in Cuba

Rodríguez-Martínez¹,

Figueira²,

Duarte³

et al. 2015

Biosci. J.

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“…Despite these results, double preimmunization still seems to be a viable alternative for controlling both viral diseases in susceptible zucchini squash cultivars, since most crops are grown in open field and not in plastic greenhouses, where symptom intensification was more pronounced. In addition, even varieties that demonstrated greater sensitivity to PRSV-W-1 infection showed a good production of marketable fruits, which probably would not occur if those plants were infected with severe PRSV-W and ZYMV strains, which might cause yield damages of 100% (Pereira et al, 2007).…”

Section: Resultsmentioning

confidence: 99%

Yield of varieties of Cucurbita pepo preimmunized with mild strains of Papaya ringspot virus - type W and Zucchini yellow mosaic virus

Bonilha¹,

Giória

Kobori

et al. 2009

Sci. agric. (Piracicaba, Braz.)

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Papaya ringspot virus -type W (PRSV-W) and Zucchini yellow mosaic virus (ZYMV) are the most prevalent viruses in cucurbit crops in Brazil and responsible for frequent yield losses. Diseases caused by these viruses are difficult to control. The objective of this work was to evaluate the effects of mild strains PRSV-W-1 and ZYMV-M on the yield of Cucurbita pepo L. cvs. Samira, Novita Plus, AF 2847, and Yasmin, under plastic greenhouse and field conditions. Plants infected with ZYMV-M and grown in a plastic greenhouse did not exhibit typical leaf symptoms or significant alterations in quantitative and qualitative fruit yield. However, when infected with PRSV-W-1, or PRSV-W-1 + ZYMV-M, the plants exhibited severe leaf mosaic symptoms and reduced fruit quality, although there were no changes in the number and mean fruit weight harvested from these plants. When these plants were infected with PRSV-W-1 and studied simultaneously in the field and plastic greenhouse, intensification of symptoms in the fruits and leaves was more pronounced under the greenhouse conditions. Quantitative yield did not change. Environmental factors seem to influence symptoms induced by PRSV-W-1.

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Comparative Epidemiology of Three Virus Diseases on Zucchini Squash

Moreira

Filho

Rezende

2014

Journal of Phytopathology

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Zucchini yellow mosaic virus (ZYMV), Papaya ringspot virus – type W (PRSV‐W) and Zucchini lethal chlorosis virus (ZLCV) cause important diseases on zucchini squash crops in Brazil. ZYMV and PRSV‐W belong to the genus Potyvirus and are transmitted by aphids, whereas ZLCV belongs to Tospovirus and is transmitted by the thrips Frankliniella zucchini. These three viruses may occur simultaneously in the field, and the epidemiology of the corresponding diseases may be determined by interactions among viruses, hosts and vectors. In this work, the progress of the diseases caused by these viruses was studied over a temporal and geographic range for three planting seasons (PS). For the lethal chlorosis (ZLCV), a monomolecular model was found to be the best fit for the data, though only during the third PS. For data collected during the first two PS, the Gompertz model was found to fit the data best. The spatial distribution of disease indicated disease aggregation at the end of the crop cycle. For the yellow mosaic (ZYMV), the model that best fit in the 1st PS was the logistic and in the 2nd and 3rd PS was monomolecular. The spatial pattern of the disease was random when the disease incidence was low but aggregated when the disease incidence was high. The common mosaic (PRSV‐W) showed the lowest incidence in all three PS. An exponential model was the best fit for data collected during all PS, and the spatial pattern of the disease was random. Interactions among the three viruses apparently did not result in changes in the epidemiology of the diseases. Removal of sources of inoculum and planting at an unfavourable time for reproduction of virus vectors are the two main measures recommended for the control of these diseases. The use of insecticide is indicated only for the control of the F. zucchini.

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Danos na produção da abobrinha de moita causados pelo Papaya ringspot virus type W e Zucchini yellow mosaic virus

Cited by 8 publications

References 1 publication

First report and molecular characterization of an isolate of papaya ringspot virus (PRSV-W) detected in pumpkin in Cuba

First report and molecular characterization of an isolate of papaya ringspot virus (PRSV-W) detected in pumpkin in Cuba

Yield of varieties of Cucurbita pepo preimmunized with mild strains of Papaya ringspot virus - type W and Zucchini yellow mosaic virus

Comparative Epidemiology of Three Virus Diseases on Zucchini Squash

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