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231225s1999 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS.1999.83.4.398A
|2 doi
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|a pubmed24n0982.xml
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|a (NLM)30845599
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Ogbe, F O
|e verfasserin
|4 aut
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| 245 |
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|a First Report of East African Cassava Mosaic Begomovirus in Nigeria
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|c 1999
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 20.11.2019
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Cassava (Manihot esculenta Crantz) is an important food crop in sub-Saharan Africa. One of the major production constraints is cassava mosaic disease caused by African cassava mosaic (ACMV) and East African cassava mosaic (EACMV) begomoviruses. ACMV is widespread in its distribution, occurring throughout West and Central Africa and in some eastern and southern African countries. In contrast, EACMV has been reported to occur mainly in more easterly areas, particularly in coastal Kenya and Tanzania, Malawi, and Madagascar. In 1997, a survey was conducted in Nigeria to determine the distribution of ACMV and its strains. Samples from 225 cassava plants showing mosaic symptoms were tested with ACMV monoclonal antibodies (MAbs) in triple antibody sandwich enzyme-linked immunosorbent assay (1). Three samples reacted strongly with MAbs that could detect both ACMV and EACMV. One of them did not react with ACMV-specific MAbs while the other two reacted weakly with such MAbs. With polymerase chain reaction (2), the presence of EACMV and a mixture of EACMV and ACMV in the respective samples was confirmed. These samples were collected from two villages: Ogbena in Kwara State and Akamkpa in Cross River State. Co-infection of some cassava varieties with ACMV and EACMV leads to severe symptoms. More importantly, a strain of mosaic geminivirus known as Uganda variant arose from recombination between the two viruses (2). This report provides evidence for the presence of EACMV in West Africa. References: (1) J. E. Thomas et al. J. Gen. Virol. 67:2739, 1986. (2) X. Zhou et al. J. Gen. Virol. 78:2101, 1997
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| 650 |
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4 |
|a Journal Article
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| 700 |
1 |
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|a Atiri, G I
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Robinson, D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Winter, S
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dixon, A G O
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Quin, F M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Thottappilly, G
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Plant disease
|d 1997
|g 83(1999), 4 vom: 12. Apr., Seite 398
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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| 773 |
1 |
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|g volume:83
|g year:1999
|g number:4
|g day:12
|g month:04
|g pages:398
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|u http://dx.doi.org/10.1094/PDIS.1999.83.4.398A
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