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231225s2016 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-05-15-0598-RE
|2 doi
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|a DE-627
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|a eng
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| 100 |
1 |
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|a Patel, Jaimin S
|e verfasserin
|4 aut
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| 245 |
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|a Characterization of Phytophthora spp. Isolated from Ornamental Plants in Florida
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| 264 |
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|c 2016
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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-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a This report investigates population structure and genetic variability of Phytophthora spp. isolated from botanically diverse plants in Florida. Internal transcribed spacer-based molecular phylogenetic analyses indicate that Phytophthora isolates recovered from ornamental plants in Florida represent a genetically diverse population and that a majority of the isolates belong to Phytophthora nicotianae (73.2%), P. palmivora (18.7%), P. tropicalis (4.9%), P. katsurae (2.4%), and P. cinnamomi (0.8%). Mating type analyses revealed that most isolates were heterothallic, consisting of both mating type A1 (25.2%) and mating type A2 (39.0%), and suggesting that they could outcross. Fungicide sensitivity assays determined that several isolates were moderate to completely insensitive to mefenoxam. In addition, several isolates were also moderately insensitive to additional fungicides with different modes of action. However, correlation analyses did not reveal occurrence of fungicide cross-resistance. These studies suggest that a genetically diverse Phytophthora population infects ornamental crops and the occurrence of mefenoxam-insensitive Phytophthora populations raises concerns about disease management in ornamentals. Mitigating fungicide resistance will require prudent management strategies, including tank mixes and rotation of chemicals with different modes of actions
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| 650 |
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|a Journal Article
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1 |
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|a Vitoreli, Anne
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Palmateer, Aaron J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a El-Sayed, Ashraf
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Norman, David J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Goss, Erica M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Brennan, Mary S
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ali, Gul Shad
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Plant disease
|d 1997
|g 100(2016), 2 vom: 08. Feb., Seite 500-509
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|g volume:100
|g year:2016
|g number:2
|g day:08
|g month:02
|g pages:500-509
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|u http://dx.doi.org/10.1094/PDIS-05-15-0598-RE
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