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|a 10.1094/PDIS-06-19-1153-RE
|2 doi
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|a eng
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| 100 |
1 |
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|a Ansari, Maryam
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Phenotypically and Genotypically Heterogeneous Strains of Pseudomonas syringae Associated With Alfalfa Leaf Spot Disease in Iran
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| 264 |
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|c 2019
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| 336 |
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|a Text
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|a ƒaComputermedien
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|a Date Completed 27.11.2019
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|a Date Revised 27.11.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a In this study, we provide a polyphasic characterization of 18 Pseudomonas spp. strains associated with alfalfa leaf spot symptoms in Iran. All of the strains were pathogenic on alfalfa, although the aggressiveness and symptomology varied among the strains. All strains but one were pathogenic on broad bean, cucumber, honeydew, and zucchini, whereas only a fraction of the strains were pathogenic on sugar beet, tomato, and wheat. Syringomycin biosynthesis genes (syrB1 and syrP) were detected using the corresponding PCR primers in all of the strains isolated from alfalfa. Phylogenetic analyses using the sequences of four housekeeping genes (gapA, gltA, gyrB, and rpoD) revealed that all of the strains except one (Als34) belong to phylogroup 2b of P. syringae sensu lato, whereas strain Als34 placed within phylogroup 1 close to the type strain of P. syringae pv. apii. Among the phylogroup 2b strains, nine strains were phylogenetically close to the P. syringae pv. aptata clade, whereas the remainder were scattered among P. syringae pv. atrofaciens and P. syringae pv. syringae strains. Pathogenicity and host range assays of the bacterial strains evaluated in this study on a set of taxonomically diverse plant species did not allow us to assign a "pathovar" status to the alfalfa strains. However, these results provide novel insight into the host range and phylogenetic position of the alfalfa-pathogenic members of P. syringae sensu lato, and they reveal that phenotypically and genotypically heterogeneous strains of the pathogen cause bacterial leaf spot of alfalfa
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| 650 |
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|a Journal Article
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| 650 |
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|a Medicago sativa
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| 700 |
1 |
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|a Taghavi, S Mohsen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zarei, Sadegh
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mehrb-Moghadam, Soraya
|e verfasserin
|4 aut
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| 700 |
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|a Mafakheri, Hamzeh
|e verfasserin
|4 aut
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| 700 |
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|a Hamidizade, Mozhde
|e verfasserin
|4 aut
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| 700 |
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|a Osdaghi, Ebrahim
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Plant disease
|d 1997
|g 103(2019), 12 vom: 03. Dez., Seite 3199-3208
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|x 0191-2917
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|g volume:103
|g year:2019
|g number:12
|g day:03
|g month:12
|g pages:3199-3208
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|u http://dx.doi.org/10.1094/PDIS-06-19-1153-RE
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