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|a 10.1094/PDIS-92-6-0975A
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|a DE-627
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|a eng
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|a Baker, C A
|e verfasserin
|4 aut
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|a Bidens mottle virus and Apium virus Y Identified in Ammi majus in Florida
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|c 2008
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|a Text
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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 Ammi majus (bishop's weed), a member of the Apiaceae, is grown from seed for cut flowers in South Florida. In March 2005, plants were found to be showing virus-like symptoms including mosaic, vein clearing, and leaf rugosity (3) that rendered their flowers unmarketable. Inclusion morphology in epidermal strips from these infected plants indicated the presence of one or more potyviruses. This was confirmed by ELISA with commercially available antiserum for potyvirus identification (Agdia, Elkhart, IN). Clover yellow vein virus (ClYVV) was identified by sequencing and confirmed with specific antiserum (4). However, ClYVV was not identified in all potyvirus-infected samples from 2005, indicating the presence of one or more additional potyviruses. Bidens mottle virus (BiMoV) was subsequently identified in one of three potyvirus-infected samples by immunodiffusion tests using specific antiserum for BiMoV (Department of Plant Pathology, University of Florida), cylindrical inclusion morphology in epidermal strips, host range data, and sequencing of cloned reverse transcription (RT)-PCR products from degenerate potyvirus primers (2). Nucleotide and deduced amino acid sequences of a partial polyprotein gene sequence (GenBank Accession No. EU255631) were 95 and 98% identical, respectively, to a Florida isolate of BiMoV recently reported from tropical soda apple (1). Similar virus-like symptoms were again observed in A. majus in January 2007 and persisted through March. ELISA testing again indicated the presence of a potyvirus. However, neither ClYVV nor BiMoV were identified in the initial 2007 samples. Instead, sequence analysis of the cloned RT-PCR products amplified with degenerate potyvirus primers (2) from seven potyvirus-infected samples collected on two dates in January and one each in February and March revealed the presence of Apium virus Y (ApVY). The 3' terminal portion of the genome (GenBank Accession No. EU255632) was found to be 90 to 91% identical to ApVY sequences in GenBank at the nucleotide level. Deduced amino acid sequences of the NIb and CP regions of these RT-PCR products were 96 and 95% identical, respectively, to ApVY sequences in GenBank. One of these seven ApVY-infected samples (collected in March 2007) was determined to be coinfected with BiMoV by sequence analysis of the cloned RT-PCR products. Six clones were sequenced. Three were determined to be ApVY as indicated above. Nucleotide and deduced amino acid sequences of a partial polyprotein gene sequence from the other three clones were 95 and 97% identical, respectively, to the 2005 A. majus BiMoV isolate. Although ClYVV and BiMoV have previously been reported in other hosts in Florida, to the best of our knowledge, this is the first report of BiMoV and ApVY in A. majus anywhere and the first report of ApVY in North America. References: (1.) C. A. Baker et al. Plant Dis. 91:905, 2007. (2.) A. Gibbs and A. J. Mackenzie. J. Virol. Methods 63:9, 1997. (3.) M. S. Irey et al. (Abstr.) Phytopathology (suppl.)95:S46, 2005. (4.) M. S. Irey et al. Plant Dis. 90:380, 2006
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| 650 |
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|a Journal Article
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1 |
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|a Rosskopf, E N
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Irey, M S
|e verfasserin
|4 aut
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| 700 |
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|a Jones, L
|e verfasserin
|4 aut
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| 700 |
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|a Adkins, S
|e verfasserin
|4 aut
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| 773 |
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|t Plant disease
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|g 92(2008), 6 vom: 11. Juni, Seite 975
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|g volume:92
|g year:2008
|g number:6
|g day:11
|g month:06
|g pages:975
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|u http://dx.doi.org/10.1094/PDIS-92-6-0975A
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