Danos causados pelo Zucchini lethal chlorosis virus (ZLCV) sobre a produção de frutos comerciais de abobrinha de moita 'Caserta'

Giampan, José Segundo; Rezende, Jorge Alberto Marques; Piedade, Sônia Maria de Stéfano

doi:10.1590/s0100-54052009000300011

Cited by 7 publications

(5 citation statements)

References 4 publications

(3 reference statements)

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“…The results of this study, together with those reported by Yuki et al (2000), Giampan et al (2009) and Spadotti et al (2013), indicate that several species in the family Cucurbitaceae are naturally susceptible to infection with ZLCV. Thus, the current main strategy to eliminate or reduce the damage caused by ZLCV in cucurbit crops should focus mainly on the outside sources of inoculum.…”

supporting

confidence: 82%

“…Infected plants die within a short time, especially when infection occurs before flowering (Bezerra et al 1999;Rezende et al 1997). Giampan et al (2009) found that zucchini squash plants exhibiting symptoms of ZLCV infection in the field 23 days after emergence (dae) did not produce marketable fruits, which could only be harvested from plants showing symptoms from 42 dae, but with a 78.5 % reduction in production.…”

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confidence: 99%

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Identification of natural hosts of Zucchini lethal chlorosis virus

Camelo‐García

Lima

Rezende

2015

Trop. plant pathol.

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Zucchini lethal chlorosis virus (ZLCV) is a species of the genus Tospovirus, in the family Bunyaviridae, and is transmitted by thrips (Frankliniella zucchini). To date, ZLCV has only been reported in Brazil, where it causes a disease known as lethal chlorosis of zucchini squash. The aim of this study was to identify additional species susceptible to ZLCV through natural infection in the field and to provide subsidies for the establishment of management strategies for the disease. Six hundred fifty-three samples belonging to 44 plant species representing 13 families were analyzed using PTA-ELISA. ZLCV naturally infected the following species: Cucumis anguria (1/12), Datura stramonium (1/59) and Luffa aegyptiaca (1/3). This work provides evidence that the main natural hosts of this tospovirus are concentrated in the cucurbit family. Presently, the management of inoculum sources can minimize the damage caused by this tospovirus.

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confidence: 82%

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confidence: 99%

Identification of natural hosts of Zucchini lethal chlorosis virus

Camelo‐García

Lima

Rezende

2015

Trop. plant pathol.

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“…Caserta plants inoculated with PRSV-W and ZYMV, alone and together, at 5, 15 and 20 days after plant emergence in the field. For the disease caused by ZLCV, Giampan et al (2009) reported that zucchini squash plants that showed symptoms of virus infection up to 23 days after emergence in the field did not yield any fruit. Marketable fruits were first harvested only from plants that showed symptoms 42 days after emergence.…”

Section: Discussionmentioning

confidence: 99%

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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“…Marketable fruits were only harvested from plants that showed symptoms at least 42 DAE, although these plants also demonstrated a 78.5% yield loss (Giampan et al. ).…”

Section: Introductionmentioning

confidence: 99%

“…Plants exhibiting symptoms 23 days after emergence (DAE) did not produce marketable fruit. Marketable fruits were only harvested from plants that showed symptoms at least 42 DAE, although these plants also demonstrated a 78.5% yield loss (Giampan et al 2009). ZLCV, genus Tospovirus, family Bunyaviridae (Pozzer et al 1996;Bezerra et al 1999), is transmitted by the thrips Frankliniella zucchini in a circulative propagative manner (Nakahara and Monteiro 1999).…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Dynamics of Zucchini Squash Lethal Chlorosis and its Relationship with the Frankliniella zucchini Population

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Cônsoli

Barbosa

et al. 2014

Journal of Phytopathology

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Lethal chlorosis of cucurbits, caused by the tospovirus Zucchini lethal chlorosis virus (ZLCV), is an important disease in the Brazilian zucchini squash crop. The virus is transmitted by the thrips Frankliniella zucchini. Progress of the disease in time and space was studied in zucchini squash experimental fields to better understand disease epidemiology. Nine independent experiments were carried out between December 2006 and September 2010. The effects of the disease were assessed every 2–7 days, depending on the experiment. The thrips population was monitored in five of these experiments. For disease progress over time, four models (exponential, monomolecular, logistic and Gompertz) were tested. Disease progress in space analysis included both the index of dispersion and Taylor's power law. The monomolecular model was the best fit to the disease incidence data, and spatial analysis indicated aggregated diseased plants at the end of the season in most experiments. A correlation was detected between the number of collected thrips and the incidence of zucchini squash lethal chlorosis. The results indicate that the thrips population significantly contributed to the primary spread of disease incidence. We propose that disease management should focus mainly on the elimination of the source of the inoculum.

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Danos causados pelo Zucchini lethal chlorosis virus (ZLCV) sobre a produção de frutos comerciais de abobrinha de moita 'Caserta'

Cited by 7 publications

References 4 publications

Identification of natural hosts of Zucchini lethal chlorosis virus

Identification of natural hosts of Zucchini lethal chlorosis virus

Comparative Epidemiology of Three Virus Diseases on Zucchini Squash

Spatiotemporal Dynamics of Zucchini Squash Lethal Chlorosis and its Relationship with the Frankliniella zucchini Population

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