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231225s2011 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-10-10-0703
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|a DE-627
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|a eng
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|a Smith, Jason A
|e verfasserin
|4 aut
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|a A Novel Fusarium Species Causes a Canker Disease of the Critically Endangered Conifer, Torreya taxifolia
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|c 2011
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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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 A canker disease of Florida torreya (Torreya taxifolia) has been implicated in the decline of this critically endangered species in its native range of northern Florida and southeastern Georgia. In surveys of eight Florida torreya sites, cankers were present on all dead trees and 71 to 100% of living trees, suggesting that a fungal pathogen might be the causal agent. To identify the causal agent, nuclear ribosomal internal transcribed spacer region (ITS rDNA) sequences were determined for 115 fungi isolated from cankers on 46 symptomatic trees sampled at three sites in northern Florida. BLASTn searches of the GenBank nucleotide database, using the ITS rDNA sequences as the query, indicated that a novel Fusarium species designated Fsp-1 might be the etiological agent. Molecular phylogenetic analyses of partial translation elongation factor 1-alpha (EF-1) and RNA polymerase second largest subunit (RPB2) gene sequences indicate that Fsp-1 represents a novel species representing one of the earliest divergences within the Gibberella clade of Fusarium. Results of pathogenicity experiments established that the four isolates of Fsp-1 tested could induce canker symptoms on cultivated Florida torreya in a growth chamber. Koch's postulates were completed by the recovery and identification of Fsp-1 from cankers of the inoculated plants
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|a Journal Article
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|a O'Donnell, Kerry
|e verfasserin
|4 aut
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|a Mount, Lacey L
|e verfasserin
|4 aut
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|a Shin, Keumchul
|e verfasserin
|4 aut
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|a Peacock, Kelly
|e verfasserin
|4 aut
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|a Trulock, Aaron
|e verfasserin
|4 aut
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|a Spector, Tova
|e verfasserin
|4 aut
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|a Cruse-Sanders, Jenny
|e verfasserin
|4 aut
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|a Determann, Ron
|e verfasserin
|4 aut
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|i Enthalten in
|t Plant disease
|d 1997
|g 95(2011), 6 vom: 14. Juni, Seite 633-639
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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|g volume:95
|g year:2011
|g number:6
|g day:14
|g month:06
|g pages:633-639
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|u http://dx.doi.org/10.1094/PDIS-10-10-0703
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