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|a 10.1094/PDIS-05-23-0837-RE
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|a eng
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| 100 |
1 |
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|a Sadhukhan, Shreya
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Influence of Co-occurring Weakly Pathogenic Bacterial Species on Bacterial Spot Disease Dynamics on Tomato
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|c 2024
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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 Mixed infections caused by multiple pathogenic and weakly pathogenic strains inhabiting the same host plants are common in nature and may modify pathogen dynamics. However, traditional plant pathogen studies have mostly focused on the binary interaction between a single host and a single pathogen. In this study, we have looked beyond this binary interaction and evaluated the impact of coinfection on disease dynamics on tomato using the bacterial spot pathogen Xanthomonas perforans (Xp), the co-occurring weakly pathogenic strain of X. arboricola (Xa), and the co-occurring potential weak pathogenic strain of Pseudomonas capsici (Pc). Time-series coinfection experiments monitoring disease severity and within-host population dynamics revealed higher disease severity in coinfection by three species compared with infection by Xp alone. However, coinfection by dual species, Xp and Pc, or Xa resulted in lower disease severity compared with Xp alone. Thus, coinfection outcomes depend on interacting species. Weak pathogens could exploit Xp to colonize the host plant as indicated by their higher populations in coinfection. However, Xp population dynamics were dependent on the coinfecting partner. While resource competition might be a possible explanation for lower Xp population in dual coinfection, interaction of Pc with the host was found to influence Xp population. Interestingly, Xp population was higher in the presence of three-species interaction compared with Xp and Xa coinfection, suggesting potential modulation of cooperative interactions among Xp and Xa in three-species coinfection rather than competitive interactions. Humidity played a significant role in population dynamics of the three species. Overall, this study highlighted the importance of coinfection dynamics in studying plant disease outbreaks
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|a Journal Article
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|a etiology
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| 650 |
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|a pathogen diversity
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| 650 |
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|a prokaryotes
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| 700 |
1 |
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|a Jacques, Marie-Agnes
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| 700 |
1 |
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|a Potnis, Neha
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant disease
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|g 108(2024), 1 vom: 15. Jan., Seite 190-199
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|g volume:108
|g year:2024
|g number:1
|g day:15
|g month:01
|g pages:190-199
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|u http://dx.doi.org/10.1094/PDIS-05-23-0837-RE
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