How virulent are emerging maize-infecting mastreviruses?
| العنوان: | How virulent are emerging maize-infecting mastreviruses? |
|---|---|
| المؤلفون: | Arvind Varsani, Lara Donaldson, Penelope Hartnady, Jean-Michel Lett, Pierre Lefeuvre, Darren P. Martin, Sohini Claverie, Kehinde A. Oyeniran, Adérito L. Monjane |
| المساهمون: | University of Cape Town, Institute of Infectious Disease & Molecular Medicine (IDM), Peuplements végétaux et bioagresseurs en milieu tropical (UMR PVBMT), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Université de La Réunion (UR)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Norwegian Veterinary Institute [Oslo], Arizona State University [Tempe] (ASU), School of Life Sciences (Arizona State University), Department of Integrative Biomedical Sciences [Cape Town], KAO was supported by the National Research Foundation (NRF) South Africa and The World Academy of Science (TWAS) Grant number 105461. SC, PL and J-ML were supported by the European Union (ERDF, contract GURDT I2016-1731-0006632), the Conseil Regional de La Reunion, the Agropolis Fondation (Labex Agro-Montpellier, E-SPACE project number 1504-004) and CIRAD., ANR-10-LABX-0001,AGRO,Agricultural Sciences for sustainable Development(2010) |
| المصدر: | Archives of Virology Archives of Virology, Springer Verlag, 2021, 166 (3), pp.955-959. ⟨10.1007/s00705-020-04906-x⟩ |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | endocrine system, medicine.medical_specialty, Genotype, viruses, Virulence, Pathologie végétale, Disease, Genome, Viral, Zea mays, Virus, Crop, 03 medical and health sciences, Mastrevirus, Maladie des plantes, Medical microbiology, Virology, Maize streak virus, medicine, neoplasms, Géminivirus, Phylogeny, H20 - Maladies des plantes, 030304 developmental biology, Plant Diseases, 2. Zero hunger, 0303 health sciences, Géminivirus striure du maïs, biology, 030306 microbiology, General Medicine, Sequence Analysis, DNA, biology.organism_classification, [SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/Virology, DNA, Viral |
| الوصف: | International audience; Maize streak disease (MSD) is one of the most significant biotic constraints on the production of Africa's most important cereal crop. Until recently, the only virus known to cause severe MSD was the A-strain of maize streak virus (MSV/A), a member of the genus Mastrevirus, family Geminiviridae. However, over the past decade, two other mastreviruses, MSV/C and maize streak Reunion virus (MSRV), have been repeatedly found in the absence of MSV/A in maize plants displaying severe MSD symptoms. Here, we report on infectious clones of MSV/C and MSRV and test their ability to cause severe MSD symptoms. Although cloned MSV/C and MSRV genomes could cause systemic symptomatic infections in MSD-sensitive maize genotypes, these infections yielded substantially milder symptoms than those observed in the field. The MSV/C and MSRV isolates that we have examined are therefore unlikely to cause severe MSD on their own. Furthermore, mixed infections of MSRV and MSV/C with other mild MSV strains also consistently yielded mild MSD symptoms. It is noteworthy that MSRV produces distinctive striate symptoms in maize that are similar in pattern, albeit not in severity, to those seen in the field, showing that this virus may contribute to the severe MSD symptoms seen in the field. Therefore, despite not fulfilling Koch's postulates for MSV/C and MSRV as causal agents of severe MSD, we cannot exclude the possibility that these viruses could be contributing to currently emerging maize diseases. |
| وصف الملف: | text |
| تدمد: | 1432-8798 0304-8608 |
| DOI: | 10.1007/s00705-020-04906-x⟩ |
| DOI: | 10.1007/s00705-020-04906-x.pdf |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b537bdcae416acf3cd2d43b58c3e50ff https://pubmed.ncbi.nlm.nih.gov/33502595 |
| Rights: | RESTRICTED |
| رقم الانضمام: | edsair.doi.dedup.....b537bdcae416acf3cd2d43b58c3e50ff |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14328798 03048608 |
|---|---|
| DOI: | 10.1007/s00705-020-04906-x⟩ |