Survey of aphid population in a yellow passion fruit crop and its relationship on the spread Cowpea aphid-borne mosaic virus in a subtropical region of Brazil

Garcêz, Renata Maia; Chaves, Alexandre Levi Rodrigues; Eiras, Marcelo; Meletti, Laura Maria Molina; Filho, Joaquim Adelino de Azevedo; Silva, Leonardo Assis da; Colariccio, Addolorata

doi:10.1186/s40064-015-1263-5

Cited by 24 publications

(16 citation statements)

References 29 publications

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“…This result coincides with the results reported for the ANCOVA analysis, where annual vector pressure index per shoot was found to be a significant co‐variable. This finding agrees with that obtained by Garcêz et al (2015) on Cowpea aphid‐borne mosaic virus (CABMV, Potyvirus) on passion fruit in Brazil. These authors observed that the low abundance and diversity of aphid species did not affect CABMV epidemiology negatively, but described that the presence of efficient vectors such as Aphis fabae and A. gossypii was crucial in the spread of CABMV in passion fruit orchards.…”

Section: Discussionsupporting

confidence: 92%

Statistical model for Plum pox virus prediction in Prunus nursery blocks using vector and virus incidence data in four different European ecological areas

Vidal

Zagrai²,

Malinowski

et al. 2020

Annals of Applied Biology

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Plum pox virus (PPV) is the causal agent of sharka, the most devastating virus disease of Prunus species. PPV is transmitted by vegetative propagation, particularly by grafting, as well as by aphid species in a nonpersistent manner. The objective of this paper was to evaluate the prevalence and diversity of PPV‐vector aphid species in representative European areas of prunus cultivation. Four experimental nursery plots were established in Skierniewice (Poland), Liria (Spain), Plovdiv (Bulgaria) and Bistrita (Romania). Aphid population was weekly monitored using the sticky shoot method in spring and/or autumn in each nursery plot. Furthermore, we estimated the relative efficiency factor for the main PPV‐vector aphid species using bibliographic and reference data. Aphid diversity in each nursery plot was assessed using the Shannon index and the number of estimated aphid species was calculated by the rarefaction method. The highest diversity of aphid species population was reported in Plovdiv in spring while the lowest diversity was found in Liria in spring. A cluster analysis based on Morisita–Horn similarity index was performed to study the differences in species composition between the four nursery plots and seasons. Aphid population was clearly grouped by location and season. Results showed Aphis spiraecola and Hyalopterus pruni complex were typically spring aphid species, while Anoecia corni and Rhopalosiphum padi dominated autumn catch. Regarding PPV‐vector aphid species present in nursery plots, A. spiraecola was the most prevalent PPV‐vector aphid species in Liria and in Bistrita, showing a high relative efficiency factor of PPV transmission (0.91). Consequently, A. spiraecola should be considered a key actor in the spread of PPV in these regions. Hyalopterus pruni complex was the most prevalent PPV‐vector aphid species in Skierniewice and Plovdiv, showing a very low relative efficiency factor of PPV transmission (0.09). Therefore, the role of H. pruni complex in spread of PPV in these regions can be considered negligible. Furthermore, we statistically demonstrated that the presence of specific PPV‐vector aphid species is associated with the spread of the disease, whereas the biodiversity of aphid species population does not affect the spread of PPV. Finally, the advantages of the use of vector pressure index in the management of sharka disease are discussed.

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Section: Discussionsupporting

confidence: 92%

Statistical model for Plum pox virus prediction in Prunus nursery blocks using vector and virus incidence data in four different European ecological areas

Vidal

Zagrai²,

Malinowski

et al. 2020

Annals of Applied Biology

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“…Management alternatives that are often recommended to reduce the damage caused by CABMV in passion flower include the use of healthy seedlings produced in certified nurseries, the use of seedlings of at least 100–120 cm in height to establish new orchards, the elimination of old and/or infected passion fruit plants before a new planting, disinfection of pruning tools to prevent mechanical transmission of the virus and planting in isolated locations away from known virus sources of inoculum, whenever possible (Fischer & Rezende, ; Cerqueira‐Silva et al , ; Garcêz et al , ). However, these recommendations are not completely effective, and even when they are partially applied, passion flower orchards are renewed annually because of the high rates of infection of plants with CABMV (Cerqueira‐Silva et al , ).…”

Section: Introductionmentioning

confidence: 99%

Long‐lasting systematic roguing for effective management of CABMV in passion flower orchards through maintenance of separated plants

Spadotti¹,

Favara²,

Novaes³

et al. 2019

Plant Pathology

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In Brazil, passion flower is grown across almost the entire country. The predominant disease of the passion flower crop is passion fruit woodiness, caused by the potyvirus cowpea aphid‐borne mosaic virus (CABMV), and transmitted by aphids in a nonpersistent manner. The disease reduces the useful life of the orchard from 36 months to approximately 18 months. Up to now, there has not been an efficient method for disease management. The aim of this work was to evaluate the efficiency of systematic roguing of diseased plants through weekly inspections, for disease management in the field. The latent and incubation periods of CABMV in passion flower vines were determined in order to optimize roguing efficiency. Passion fruit plants inoculated with CABMV started to act as sources of inoculum from 3 days after inoculation (DAI), and the symptoms were expressed, on average, at 8 DAI. Five field experiments, conducted in the states of São Paulo and Bahia, Brazil, demonstrated that systematic roguing of diseased plants was significantly efficient for managing passion fruit woodiness disease. In order to facilitate identification and subsequent removal of the infected plants, they need to be grown separately. This cultural practice can be recommended for managing passion fruit woodiness disease, provided it is applied on a regional scale by all passion fruit growers. The development of some pilot plantings for the application of roguing in a passion flower‐producing region is recommended to validate the use of this technique for managing passion fruit woodiness disease.

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“…Fruit hardening virus, caused by the Cowpea aphid-borne mosaic virus (CABMV) is a species of the genus Potyvirus (Cerqueira- Silva et al, 2014;Rodrigues et al, 2015). It is transmitted by aphids, grafting and mechanically by means of buffered leaf extract and occurs in the main producing areas of Brazil (SILVA et al, 2012;GARCÊZ et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Resistance to Cowpea aphid-borne mosaic virus in in vitro germinated genotypes of Passiflora setacea

et al. 2018

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Passion fruit (Passiflora edulis) is a fruit species of great relevance for Brazilian economy. However, it is highly susceptible to the Cowpea aphid-borne mosaic virus (CABMV). The species P.setacea, on the other hand, is resistant to the disease. The present study aimed to identify CABMV-resistant P. setacea genotypes for the introgression of genes into sour passion fruit genetic breeding programs. The seeds of passion fruit genotypes were germinated in vitro in MS culture medium. The seedlings were acclimatized in a growth chamber at the temperature of 27 ± 2ºC, photoperiod of 16:8 hours and 80% of relative humidity. Thirty plants of each genotype were mechanically inoculated with extract prepared from leaves collected from passion fruit plants with symptoms of CABMV for the assessment of resistance to CABMV. The severity of leaf symptoms was evaluated by means of a grading scale of visual signs. After the visual evaluation and identification of the asymptomatic genotypes of P. setacea, the PTA-ELISA test was carried out for 30 selected genotypes. According to the visual evaluation, all P. setacea genotypes were highly resistant to CABMV, while the P. edulis genotypes were highly susceptible. Out of the 30 genotypes selected, only PsRJ 4 was considered susceptible by PTA-ELISA. The other genotypes of P. setacea were considered resistant and present great potential for use in passion fruit genetic breeding programs.

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Survey of aphid population in a yellow passion fruit crop and its relationship on the spread Cowpea aphid-borne mosaic virus in a subtropical region of Brazil

Cited by 24 publications

References 29 publications

Statistical model for Plum pox virus prediction in Prunus nursery blocks using vector and virus incidence data in four different European ecological areas

Statistical model for Plum pox virus prediction in Prunus nursery blocks using vector and virus incidence data in four different European ecological areas

Long‐lasting systematic roguing for effective management of CABMV in passion flower orchards through maintenance of separated plants

Resistance to Cowpea aphid-borne mosaic virus in in vitro germinated genotypes of Passiflora setacea

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