2003
DOI: 10.1590/s0103-90162003000400014
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Abstract: The Passion fruit woodiness virus (PWV) is the most important virus affecting passion fruit (Passiflora edulis f. flavicarpa Deg.) crops in Brazil. The main purpose of this work was to select mild strains of PWV and to evaluate their protective effect against a severe strain of the virus. Three mild strains were selected from outstanding plants found in orchards severely affected by the virus (F-101, F-102 and F-103) and three others were obtained from blisters formed in passion fruit vine leaves showing mosai… Show more

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Cited by 25 publications
(19 citation statements)
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References 8 publications
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“…The evaluation of the protection was accomplished by the visual observation of plants exhibiting typical virus symptoms (mosaic, leaf deformation and leaf blisters) and by determining the disease´s incidence (test plants with symptoms/total) in each treatment 30 and 60 days after the inoculation. When necessary, the indirect DAS-ELISA test was carried out, as described previously (Bertacini et al, 1998;Novaes and Rezende, 2003) to prove that the symptomless plants were not infected by CABMV. The treatments that received mushroom extracts were compared individually with the control by Independence χ 2 test (P<0.05).…”
Section: Plants and Pathogenmentioning
confidence: 99%
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“…The evaluation of the protection was accomplished by the visual observation of plants exhibiting typical virus symptoms (mosaic, leaf deformation and leaf blisters) and by determining the disease´s incidence (test plants with symptoms/total) in each treatment 30 and 60 days after the inoculation. When necessary, the indirect DAS-ELISA test was carried out, as described previously (Bertacini et al, 1998;Novaes and Rezende, 2003) to prove that the symptomless plants were not infected by CABMV. The treatments that received mushroom extracts were compared individually with the control by Independence χ 2 test (P<0.05).…”
Section: Plants and Pathogenmentioning
confidence: 99%
“…As a semi-perennial culture, established in the field for a few years, the crossprotection of the passion fruit plants could contribute to the reduction of the damages caused by the virus. However, so far, this action has not been effective in Brazil (Novaes and Rezende, 2003). Thus, other control measures should be found in an attempt to reduce the virus damage.…”
Section: Introductionmentioning
confidence: 99%
“…Pre-immunization strategies, as used in Australia by Simmonds (1959), did not protect passion fruit plants in Brazil against CABMV (Novaes and Rezende, 2003). Currently, tests are being made with transformed plants resistant to CABMV (Alfenas et al, 2005;Trevisan, 2005).…”
Section: Introductionmentioning
confidence: 99%
“…O plantio de novos pomares próximos a pomares abandonados ou antigos, que podem servir como fonte de inóculo, e a dificuldade de controle dos vetores, podem ser considerados os fatores principais para a disseminação da doença. Além disso, nenhuma fonte de resistência ou tolerância à infecção pelo vírus tem sido encontrada no germoplasma de maracujá azedo cultivado e a pré-imunização, com isolados do PWV, não proporcionou proteção contra estirpes mais virulentas REZENDE, 2003). Uma alternativa para a eliminação do CABMV em maracujazeiro é a utilização da microenxertia a partir ápices caulinares de plantas infectadas, enxertados em epicótilo e hipocótilo de plantas sadias.…”
Section: Avaliaram a Resistência De Dezesseis Espécies Deunclassified