First report of Pepo aphid‐borne yellows virus in cucurbits in Tanzania and Mayotte

Desbiez, Cécile; Millot, Pauline; Wipf-Scheibel, Catherine; Blancard, Dominique; Chesneau, Thomas; Lecoq, Hervé

doi:10.5197/j.2044-0588.2016.033.020

Cited by 13 publications

(9 citation statements)

References 5 publications

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“…As many as 66 viruses have been reported in these crops in other parts of the world (Lecoq, 2003;King et al, 2012;Lecoq and Desbiez, 2012;Abrahamian and Abou-Jawdah 2014;Romay et al, 2014), which is much higher than the pre-selected virus species assessed under this study. For example, some strains or species of Papaya ringspot virus (PRSV), Squash mosaic virus (SqMV), Watermelon chlorotic stunt virus (WmCSV), Pepo aphid-borne yellows virus (PABYV) among others are known to infect these crops (Bananej and Vahdat 2008;Mohammed et al, 2012;Lecoq and Desbiez, 2012;Desbiez et al, 2016). Also, the methods used in the study were limited to serology using a highly stringent threshold of three times or more absorbance of the blank for a plant sample to be considered as virus infected, which might have affected the proportions of plants declared virus-infected with the viruses assayed.…”

Section: Several Viruses and Virus Diseases Infecting Cucur-bitaceousmentioning

confidence: 99%

Incidence of viruses and virus-like diseases of watermelons and pumpkins in Uganda, a hitherto none-investigated pathosystem

Masika¹,

Kisekka²,

Alicai³

et al. 2017

Afr. J. Agric. Res.

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Common impromptu observations between 2010 and 2012 of apparent virus-like disease symptoms in watermelons and pumpkins in Uganda prompted this study. However, there was no recorded evidence of virus infection in these crops anywhere in Uganda or eastern Africa as a region. Thus, 374 and 522 watermelon and pumpkin plants, respectively, growing in 13 fields were surveyed to record virus-like disease symptoms in Uganda's four districts of Mbale and Kamuli (eastern region), Mpigi and Masaka (central region) during August to November 2013, and January to March 2014. Leaf samples were also collected and tested for four viruses known to commonly infect watermelons and pumpkins worldwide. Symptom severity was assessed using a scale of 0 to 5, while virus incidence was determined by serological methods. The four viruses tested were Cucumber mosaic virus (CMV), Watermelon mosaic virus (WMV), Zucchini yellow mosaic virus (ZYMV) and Cucurbit aphid borne-yellows virus (CABYV). In both crops, there was a higher incidence of virus-like diseases in central than in eastern region (P = 0.000). All the four viruses were detected w ith CMV as the most common, followed by WMV, ZYMV, and CABYV. Differences in virus incidences between the districts were not always significant. Single CMV, dual CMV+WMV and triple CMV+WMV+ZYMV were the most common single, and multiple infections in both crops. Watermelons contained more single virus infections than mixed infections (P < 0.001), but this difference was not significant in pumpkins (P = 0.468). In all, single virus infections were significantly higher in watermelons than pumpkins (P < 0.001). This is the first study to report incidence of viruses and virus-like diseases in watermelons and pumpkins in Uganda , and in eastern Africa as a region. The importance of these results with respect to crop production and next steps in virus disease management are discussed.

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Section: Several Viruses and Virus Diseases Infecting Cucur-bitaceousmentioning

confidence: 99%

Incidence of viruses and virus-like diseases of watermelons and pumpkins in Uganda, a hitherto none-investigated pathosystem

Masika¹,

Kisekka²,

Alicai³

et al. 2017

Afr. J. Agric. Res.

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“…70% in 330 cucurbit samples collected between (Mnari-Hattab et al, 2009. The virus was has also been reported outside the Mediterranean region, especially in Iran, China, Saudi Arabia, Pakistan, Tanzania, the USA, Czech Republic, Serbia, Korea, and India (Lemaire, 1993;Bananej et al, 2006;Xiang et al, 2008;Svoboda et al, 2011;Vučurović et al, 2011;Al-Saleh et al, 2015;Choi and Choi, 2016;Desbiez et al, 2016;Suveditha et al, 2017;Ahsan et al, 2020) (Figure 2).…”

Section: Cucumber Aphid-borne Yellows Virus (Cabyv)mentioning

confidence: 76%

Viruses of cucurbit crops: current status in the Mediterranean Region

Radouane

Ezrari

Belabess

et al. 2021

Phytopathol. Mediterr.

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Cucurbits are among the most cultivated crops, and the most economically important species are melon (Cucumis melo L.), cucumber (Cucumis sativus L.), watermelon (Citrullus lanatus Thumb.), squash (Cucurbita pepo L.), and pumpkin (Cucurbita spp.). These crops have become important income sources providing export and local consumption commodities in many Mediterranean countries. Increased area of cucurbits has led to the emergence of several viral diseases, which can have impacts on crop production and threaten agricultural sustainability. An overview of the most damaging cucurbit viruses in the Mediterranean area is provided to improve understanding of the diseases they cause and to emphasize effective disease management strategies. An updating of the geographical distribution of these viruses, the symptoms they cause and their means of transmission is also provided. Disease management methods and measures by farmers and phytosanitary authorities to address the virus outbreaks are outlined, including diagnostics, use of tolerant cultivars, and chemical and biological vector control. Mediterranean region farmers have learned many lessons from the damaging pandemics caused by cucurbit viruses, through the extensive published research, and this review provides a basis for managing future outbreaks of newly emerging virus infections.

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“…Virus diseases of cucurbits, for instance, cause rugosity on leaves and fruits thereby making them unfit for human consumption and thus completely or to some degree reducing their marketability. Cucumber mosaic virus, ZYMV and WMV are some of the viruses that cause severe symptoms on cucurbits globally (Ibaba et al, 2015;Desbiez et al, 2016). Their occurrence has been reported from many places in the world (Massumi et al, 2007;Lisa et al, 1981;Herrera-Vásquez et al, 2013;Ibaba et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

“…While there are reports of occurrence of virus diseases of cucurbits from Africa (Lapido, 1988;Ibaba et al, 2015;Desbiez et al, 2016), such information is scanty for major virus diseases of cucurbits in Tanzania. This might be attributed to too much focus on the virus diseases of cassava and sweet potato, which are considered as the main food security crops.…”

Section: Introductionmentioning

confidence: 99%

Occurrence of Cucumber mosaic virus, Zucchini yellow mosaic virus and Watermelon mosaic virus in cultivated and wild cucurbits in the coastal areas of Tanzania

Sydanmetsa¹,

Mbanzibwa²

2016

Afr. J. Agric. Res.

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Cucurbit vegetables play important role as sources of vitamins, micronutrients and income. However, their production is constrained, inter alia, by the virus diseases. Cucumber mosaic virus (CMV; Cucumovirus), Zucchini yellow mosaic virus (ZYMV; Potyvirus) and Watermelon mosaic virus (WMV; Potyvirus) are the major causal agents of devastating virus diseases of the cucurbits. Disease symptoms similar to those caused by these viruses were observed in cucurbits in the coastal lowland of Tanzania. To determine what caused these symptoms, leaf samples were collected from 223 cultivated and wild cucurbit plants and virus infections detected using Double Antibody Sandwich Enzyme-linked immunosorbent Assay (DAS-ELISA). Visual incidence of virus disease symptoms ranged from 0.0 to 90.0% but ELISA test for CMV, ZYMV and WMV revealed the range of 0 to 80%. The highest incidence of the virus infections was that of WMV (33.0%) in Cucumis sativus. The highest incidence of ZYMV and CMV were 10.4 and 13.4% in Citrullus lanatus and Cucurbita pepo, respectively. These viruses were found infecting cucurbits in single, co-and triple infections. Moreover, these viruses were also detected in the wild plants, Cucumis hystrix and Luffa aegyptiaca and in cultivated Vigna unguiculata. ZYMV was the commonest virus in wild plants. Yield losses caused by virus diseases remain undetermined for cucurbits in Tanzania but co-and triple virus infections have implication on disease severity and evolution of these viruses and may pose challenge for breeding for resistance.

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First report of Pepo aphid‐borne yellows virus in cucurbits in Tanzania and Mayotte

Cited by 13 publications

References 5 publications

Incidence of viruses and virus-like diseases of watermelons and pumpkins in Uganda, a hitherto none-investigated pathosystem

Incidence of viruses and virus-like diseases of watermelons and pumpkins in Uganda, a hitherto none-investigated pathosystem

Viruses of cucurbit crops: current status in the Mediterranean Region

Occurrence of Cucumber mosaic virus, Zucchini yellow mosaic virus and Watermelon mosaic virus in cultivated and wild cucurbits in the coastal areas of Tanzania

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