Prevalence of ' Liberibacter solanacearum' Haplotypes in Potato Tubers and Psyllid Vectors in Idaho From 2012 to 2018.

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ID: 38950
2019
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Abstract
' Liberibacter solanacearum' (Lso) is an uncultured, phloem-associated bacterium causing a severe tuber disease in potato called zebra chip (ZC). Seven haplotypes of Lso have been described in different hosts, with haplotypes A and B found associated with infections in potato and tomato. In the field, Lso is transmitted by the potato psyllid (), and between 2011 and 2015, a significant change in Lso haplotype prevalence was previously reported in Idaho: from exclusively A haplotype found in tested psyllids in 2012 to mainly B haplotype found in collected psyllids in 2015. However, prevalence of Lso haplotypes in Idaho was not analyzed in potato tubers exhibiting symptoms of ZC. To fill in this knowledge gap, prevalence of Lso haplotypes was investigated in potato tubers harvested in southern Idaho between 2012 and 2018, and it was found to change from exclusively A haplotype in the 2012 season to an almost equal A and B haplotype distribution during the 2016 season. During the same period, haplotype distribution of Lso in psyllid vectors collected using yellow sticky traps also changed, but in psyllids, the shift from A haplotype of Lso to B haplotype was complete, with no A haplotype detected in 2016 to 2018. The changes in the haplotype prevalence of the Lso circulating in potato fields in southern Idaho may be, among other factors, responsible for a decrease in the ZC incidence in Idaho potato fields between an outbreak of the disease in 2012 and a very low level of ZC afterward.
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dahan2019prevalenceplant Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Dahan, Jennifer;Wenninger, Erik J;Thompson, Brandon D;Eid, Sahar;Olsen, Nora;Karasev, Alexander V;
Journal Plant disease
Year 2019
DOI
10.1094/PDIS-11-18-2113-RE
URL
Keywords Keywords not found

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