Interception of Wheat mosaic virus (WMoV) in Brazil in maize seeds from the United States

Botelho, Stephanie Regina Alves; Duarte, Macária Ferreira; Barbosa, Andreza Viveiros; Lau, Douglas; Sanches, Márcio Martinello; Fernandes, Fernanda Rausch

doi:10.1590/s0100-204x2016000500034

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…In a greenhouse experiment, among 179 seedlings emerging from sweet corn seeds originated from infected plants, only 6 were tested positive for HPWMoV and showed the typical symptoms described above on maize (Nischwitz, 2020 ). In Brazil, HPWMoV has been detected by phytosanitary inspections using serological and molecular tests, in seedlings of maize emerged from seeds of two accessions imported from USA, although no information on the tested maize subspecies was provided (Alves Botelho et al, 2016 ). No experimental data are available on seed transmission for other hosts of HPWMoV.…”

Section: Pest Categorisationmentioning

confidence: 99%

“…As at 26 January 2022 there were no records of interception of HPWMoV in the Europhyt and TRACES databases. However, HPWMoV has been intercepted in Brazil in seedlings of maize emerged from seeds of two accessions imported from USA (Alves Botelho et al, 2016 ). There were no records of interception of the mite vector A. tosichella in the Europhyt and TRACES databases.…”

Section: Pest Categorisationmentioning

confidence: 99%

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Pest categorisation of High Plains wheat mosaic virus

Bragard¹,

Baptista²,

Chatzivassiliou³

et al. 2022

EFS2

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The EFSA Panel on Plant Health conducted a pest categorisation of High Plains wheat mosaic virus (HPWMoV) for the EU territory. The identity of HPWMoV, a member of the genus Emaravirus (family Fimoviridae ), is well established and reliable identification methods are available. The pathogen is not included in the EU Commission Implementing Regulation 2019/2072. HPWMoV has been reported from Argentina, Australia, Canada, Ukraine and USA, and it is not known to be present in the EU. HPWMoV infects plant species of the family Poaceae (i.e. wheat, maize and several other cultivated or wild Poaceae species). It is the causal agent of High Plains disease of wheat and maize, inducing symptoms ranging from mild to severe mosaic, chlorosis and necrosis in wheat, and chlorotic streaks in maize plants. The virus is transmitted by the wheat curl mite Aceria tosichella, which is present in the EU. HPWMoV transmission via seeds was reported to occur in sweet corn. Sweet corn seeds for sowing were identified as the most relevant pathway for entry of HPWMoV into the EU. Seeds from other hosts and viruliferous wheat curl mites were identified as entry pathways associated with uncertainties. Machinery not appropriately cleaned may move infected seeds and/or parts of cereals infested by viruliferous mites. Cultivated and wild hosts of HPWMoV are distributed across the EU. Would the pest enter and establish in the EU territory, economic impact on the production of cultivated hosts is expected. Phytosanitary measures are available to prevent entry and spread of the virus in the EU. HPWMoV fulfils the criteria that are within the remit of EFSA to assess for it to be regarded as a potential Union quarantine pest.

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Section: Pest Categorisationmentioning

confidence: 99%

Section: Pest Categorisationmentioning

confidence: 99%

Pest categorisation of High Plains wheat mosaic virus

Bragard¹,

Baptista²,

Chatzivassiliou³

et al. 2022

EFS2

View full text Add to dashboard Cite

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Emergence of emaraviruses, the eriophyoid mite-transmitted viruses in plants

Kubota

2017

Uirusu

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Members of the genus Emaravirus are plant viruses transmitted by eriophyoid mites. The emaravirus genome consists of multiple, negative-sense, single-stranded RNA segments, that have been shown to be highly divergent. Recent studies have revealed that emaraviruses are associated with long-recognized diseases of world important crops such as fig mosaic disease or sterility mosaic disease of pigeon pea. Furthermore, along with the popularization of deep sequencing technologies, new putative members of emaraviruses have been reported year by year. This paper presents an overview of agricultural damages caused by emaraviruses worldwide and characteristics of their genomic RNAs and proteins. In addition, our research project to prevent a disease of a herb crop (shiso, Perilla frutescens) caused by Perilla mosaic virus, a putative emaravirus recently identified in Japan, is outlined.

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Interception of Wheat mosaic virus (WMoV) in Brazil in maize seeds from the United States

Cited by 2 publications

References 12 publications

Pest categorisation of High Plains wheat mosaic virus

Pest categorisation of High Plains wheat mosaic virus

Emergence of emaraviruses, the eriophyoid mite-transmitted viruses in plants

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