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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-10-22-2484-RE
|2 doi
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|a eng
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| 100 |
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|a Subedi, Aastha
|e verfasserin
|4 aut
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|a Exploring Diversity of Bacterial Spot Associated Xanthomonas Population of Pepper in Southwest Florida
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 03.11.2023
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|a Date Revised 03.11.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Bacterial spot caused by Xanthomonas spp. is a significant disease that challenges pepper growers worldwide and is particularly severe in a hot and humid environment. Understanding the pathogen's population biology is critical for sustainable disease management. The goal of this study was to characterize the species, race, and bactericide sensitivity of bacterial spot-associated Xanthomonas collected from pepper in Florida. A survey of pepper production fields in southwest Florida between 2019 and 2021-covering two counties, eight farms, and two transplant facilities-resulted in the isolation of 542 Xanthomonas euvesicatoria and 35 Xanthomonas perforans strains. Four races were identified on pepper, of which most strains were race P1 (42%), race P6 (26%), race P3 (24%), and less common was race P4 (8%). All X. perforans strains were characterized as race P1 and showed a compatible reaction on tomato. Sixty-two and 96% of strains were sensitive to copper sulfate and streptomycin, respectively. One farm that did not use copper to manage the disease contained only copper-sensitive strains and was the only farm with race P3 strains. Strains were assayed for starch hydrolysis activity of which a third of X. euvesicatoria strains were strongly amylolytic, a characteristic not typically observed in X. euvesicatoria. All X. perforans strains produced bacteriocins against X. euvesicatoria in vitro. The Xanthomonas population causing bacterial spot on pepper in southwest Florida is diverse and dynamic; thus, regular monitoring provides pertinent information to plant breeders and growers for designing disease management strategies
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|a Journal Article
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|a Xanthomonas
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|a amylase
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|a bacterial spot
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|a bacteriocin
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|a pepper
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| 650 |
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| 650 |
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|2 NLM
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| 700 |
1 |
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|a Minsavage, Gerald V
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jones, Jeffrey B
|e verfasserin
|4 aut
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|a Goss, Erica M
|e verfasserin
|4 aut
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|a Roberts, Pamela D
|e verfasserin
|4 aut
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|i Enthalten in
|t Plant disease
|d 1997
|g 107(2023), 10 vom: 01. Okt., Seite 2978-2985
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|g volume:107
|g year:2023
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