Pepper veinal mottle virus in Ivory Coast

Wijs, J. J. De

doi:10.1007/bf01974234

Cited by 22 publications

(5 citation statements)

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“…PRV infection percentages were low during this period (Fig. De Wijs (1973) first recorded the species as a virus vector in Africa. Rainfall in April-May caused a sudden growth in May.…”

Section: The Influence Of the Growth Rate Of The Virus Source Plants mentioning

confidence: 88%

The correlation between the transmission of passionfruit ringspot virus and populations of flying aphids

Wijs¹,

Bos²

1974

Netherlands Journal of Plant Pathology

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The percentage of passionfruit ringspot virus infection in batches of young passionfruit seedlings exposed in the open in a plot of diseased fully grown passionfruits was significantly correlated with the number of winged Aphis spiraecola trapped in yellow watertrays during the time of exposure.Of all aphids trapped, 98 ~ were A. spiraecola, colonizing predominantly Eupatorium eonyzoides (Compositae). This plant was found colonized everywhere in the forest area of Ivory Coast, which emphasizes the importance of A. spiraeeola as a potential virus vector in this part of Africa. The numlzers of trapped A. spiraecola were positively correlated with the preceding rainfall in mm with an interval of two weeks before the assessment. The influence of a period of rainfall lasted four to six weeks.member of the potyvirus group, could be transmitted experimentally by Aphis gossypii and A. spiraecola after brief acquisition feeds (De Wijs, 1974). Therefore a field experiment was set up to find out which aphids were responsable for the spread of PRV in the field. Materials and methodsExperimental site. The experimental fields of the ORSTOM at Adiopodoum6, IvoryCoast, are situated 17 km west of Abidjan at about 50 m above sea level and surrounded to the North and East side by secondary rain forest and to the South and West side by African cultivation.The passionfruit plots. The site of the two passionfruit plots in the experimental fields of the ORSTOM can be seen on Fig. 1. Passionfruit plot No 1 consisted of three rows ' " I~ Habitations Parc meteo r--l J f 4

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“…PRV infection percentages were low during this period (Fig. De Wijs (1973) first recorded the species as a virus vector in Africa. Rainfall in April-May caused a sudden growth in May.…”

Section: The Influence Of the Growth Rate Of The Virus Source Plants mentioning

confidence: 88%

The correlation between the transmission of passionfruit ringspot virus and populations of flying aphids

Wijs¹,

Bos²

1974

Netherlands Journal of Plant Pathology

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“…PVMV, which is the most devastating pepper virus in West Africa, was first found in Ghana (Brunt & Kenten, 1971), then in Nigeria, the African country with the highest pepper production (Lana et al, 1975), and in Côte d'Ivoire on Nicotiana tabacum (De Wijs, 1973), the weed Physalis angulata and Capsicum spp. (Fauquet & Thouvenel, 1987).…”

Section: Introductionmentioning

confidence: 99%

“…In addition, symptoms may appear on leaves, stems, flowers and fruits. In Côte d'Ivoire, PVMV was shown to be transmitted in a nonpersistent and noncirculative manner by aphids of the species Aphis gossypii , Aphis spiraecola and Toxoptera citricidus (De Wijs, ). CMV has a very broad host range, including over 1000 species in more than 85 botanical families.…”

Section: Introductionmentioning

confidence: 99%

Survey of viruses infecting open‐field pepper crops in Côte d'Ivoire and diversity of Pepper veinal mottle virus and Cucumber mosaic virus

Moury

Kouabenan

et al. 2018

Plant Pathology

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The prevalence of viruses in pepper crops grown in open fields in the different agro‐ecological zones (AEZs) of Côte d'Ivoire was surveyed. Pepper veinal mottle virus (PVMV; genus Potyvirus) and Cucumber mosaic virus (CMV; genus Cucumovirus) were the most frequent viruses among those surveyed, while tobamoviruses (genus Tobamovirus) were detected at low frequency. PVMV showed a high heterogeneity across AEZs, which may be related to climatic, ecological or agronomical conditions, whereas CMV was more homogeneously distributed. The molecular diversity of CMV and PVMV were analysed from partial genome sequences. Despite the low number of CMV isolates characterized, two molecular groups were revealed, one corresponding to subgroup IA and the other to reassortants between subgroups IA and IB. RNAs 1 and 3 of the reassortants clustered with the IB subgroup of CMV isolates, whereas their RNA 2 clustered with the IA subgroup. Importantly, RNA 1 of CMV isolates of the IB subgroup has been shown to be responsible for adaptation to pepper resistance. The diversity of PVMV in the VPg‐ and coat protein‐coding regions revealed multiple clades. The central part of the VPg showed a high level of amino acid diversity and evidence of positive selection, which may be a signature of adaptation to plant recessive resistance. As a consequence, for efficient deployment of resistant pepper cultivars, it would be desirable to examine the occurrence of virulent isolates in the CMV or PVMV populations in Côte d'Ivoire and to follow their evolution as the resistance becomes more widely deployed.

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“…Pepper veinal mottle potyvirus (Brunt and Kenten, 1971) is endemic in pepper (Capsicum annuum and C. frutescens) and other solanaceous crops in several West African countries (de Wijs, 1973;Ladipo and Roberts, 1977;Walter et ai., 1980;Givord, 1982;Igwegbe and Waterworth, 1982;Alegbego, 1987;Thottapilly, 1992), also in Ethiopia (Agranovsky, 1992), Kenya and South Africa (Brunt et al, 1978). Symptomatically distinct strains from eggplant, pepper, tomato and tomato eggplant have been isolated and partially characterized (Brunt et al, 1978).…”

Section: Introductionmentioning

confidence: 99%

Serodiagnosis of Pepper Veinal Mottle Virus in West Africa using Specific Monoclonal Antibodies in DAS‐ELISA

Huguenot

Furneaux

Clare

et al. 1996

Journal of Phytopathology

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In order to develop a reliable diagnostic test for pepper veinal mottle virus (PVMV), a panel of monoclonal antibodies (mAbs), raised to a Nigerian isolate (PVMW‐Ni), was evaluated by double‐antibody sandwich enzyme‐linked immunosorbent assay (DAS‐ELISA) on infected pepper samples from seven West African countries. PVMV from different geographical locations was serologically very homogeneous and no significant epitope differences were detected even with a very sensitive double‐mAb sandwich ELISA. This ELISA format was optimized with mAb 6C12 and its application in a diagnostic test resulted in the identification of PVMV in Burkina Faso, Togo and Sénégal where it had not been previously reported.

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Pepper veinal mottle virus in Ivory Coast

Abstract: No dodder transmission was found. Serological relationship with onion yellow dwarf virus and Columbian Datura virus was established.

Cited by 22 publications

References 4 publications

The correlation between the transmission of passionfruit ringspot virus and populations of flying aphids

The correlation between the transmission of passionfruit ringspot virus and populations of flying aphids

Survey of viruses infecting open‐field pepper crops in Côte d'Ivoire and diversity of Pepper veinal mottle virus and Cucumber mosaic virus

Serodiagnosis of Pepper Veinal Mottle Virus in West Africa using Specific Monoclonal Antibodies in DAS‐ELISA

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