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NLM311625118 |
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DE-627 |
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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-02-20-0399-RE
|2 doi
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|a pubmed24n1038.xml
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|a (NLM)32584157
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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 Matić, Slavica
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Alternaria Leaf Spot Caused by Alternaria Species
|b An Emerging Problem on Ornamental Plants in Italy
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|c 2020
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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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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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| 500 |
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|a Date Completed 30.07.2020
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|a Date Revised 30.07.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Serious outbreaks of Alternaria leaf spot and plant decay have recently been recorded on several ornamental plants in the Biella Province (Northern Italy). Twenty-two fungal isolates were obtained from Alternaria infected plant tissues from 13 ornamental hosts. All the isolates were identified morphologically as small-spored Alternaria species. Multilocus sequence typing, carried out by means of ITS, rpb2, tef1, endoPG, Alt a 1, and OPA10-2, assigned 19 isolates as Alternaria alternata, two isolates as belonging to the Alternaria arborescens species complex, and one isolate as an unknown Alternaria sp. Haplotype analyses of ornamental and reference A. alternata isolates from 12 countries identified 14 OPA10-2 and 11 endoPG haplotypes showing a relatively high haplotype diversity. A lack of host specialization or geographic distribution was observed. The host range of the studied A. alternata isolates expanded in cross-pathogenicity assays, and more aggressiveness was frequently observed on the experimental plants than on the host plants from which the fungal isolates were originally isolated. High disease severity, population expansion, intraspecies diversity, and increased range of experimental hosts were seen in the emergence of Alternaria disease on ornamentals. More epidemiological and molecular studies should be performed to better understand these diseases, taking into consideration factors such as seed transmission and ongoing climate changes
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| 650 |
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4 |
|a Journal Article
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| 650 |
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4 |
|a Alternaria leaf spot
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| 650 |
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4 |
|a haplotype analyses
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| 650 |
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4 |
|a molecular characterization
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| 650 |
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4 |
|a multi-locus sequence typing
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| 650 |
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4 |
|a ornamental species
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| 650 |
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4 |
|a pathogenicity assays
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| 700 |
1 |
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|a Tabone, Giulia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Garibaldi, Angelo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gullino, Maria Lodovica
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Plant disease
|d 1997
|g 104(2020), 8 vom: 01. Aug., Seite 2275-2287
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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| 773 |
1 |
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|g volume:104
|g year:2020
|g number:8
|g day:01
|g month:08
|g pages:2275-2287
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| 856 |
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|u http://dx.doi.org/10.1094/PDIS-02-20-0399-RE
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