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|a 10.1094/PDIS-11-22-2557-RE
|2 doi
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|a eng
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| 100 |
1 |
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|a Gordon, Michael I
|e verfasserin
|4 aut
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| 245 |
1 |
0 |
|a Transmission and Management of Pathogenic Agrobacterium tumefaciens and Rhodococcus fascians in Select Ornamentals
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| 264 |
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1 |
|c 2024
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| 336 |
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|a Text
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|a Date Completed 02.02.2024
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|a Date Revised 02.02.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Pathogenic Agrobacterium tumefaciens and Rhodococcus fascians are phytobacteria that induce crown gall and leafy gall disease, respectively, resulting in undesirable growth abnormalities. When present in nurseries, plants infected by either bacterium are destroyed, resulting in substantial losses for growers, especially those producing plants valued for their ornamental attributes. There are many unanswered questions regarding pathogen transmission on tools used to take cuttings for propagation and whether products used for bacterial disease control are effective. We investigated the ability to transmit pathogenic A. tumefaciens and R. fascians on secateurs and the efficacy of registered control products against both bacteria in vitro and in vivo. Experimental plants used were Rosa × hybrida, Leucanthemum × superbum, and Chrysanthemum × grandiflorum for A. tumefaciens and Petunia × hybrida and Oenothera 'Siskiyou' with R. fascians. In separate experiments, we found secateurs could convey both bacteria in numbers sufficient to initiate disease in a host-dependent manner and that bacteria could be recovered from secateurs after a single cut through an infected stem. In in vivo assays, none of six products tested against A. tumefaciens prevented crown gall disease, although several products appeared promising in in vitro trials. Likewise, four compounds trialed against R. fascians failed to prevent disease. Sanitation and clean planting material remain the primary means of disease management
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| 650 |
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4 |
|a Journal Article
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| 650 |
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4 |
|a Agrobacterium tumefaciens
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| 650 |
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4 |
|a Rhodococcus fascians
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| 650 |
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4 |
|a crown gall
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| 650 |
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4 |
|a disease management
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| 650 |
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4 |
|a leafy gall
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| 650 |
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4 |
|a plant bacterial diseases
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| 650 |
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4 |
|a plant disease control
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| 650 |
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4 |
|a transmission
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| 700 |
1 |
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|a Thomas, William J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Putnam, Melodie L
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Plant disease
|d 1997
|g 108(2024), 1 vom: 01. Jan., Seite 50-61
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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| 773 |
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|g volume:108
|g year:2024
|g number:1
|g day:01
|g month:01
|g pages:50-61
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| 856 |
4 |
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|u http://dx.doi.org/10.1094/PDIS-11-22-2557-RE
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