Bacterial wilt symptoms are impacted by host age and involve net downward movement of Erwinia tracheiphila in muskmelon

dc.contributor.author Liu, Q.
dc.contributor.author Beattie, Gwyn
dc.contributor.author Beattie, Gwyn
dc.contributor.author Saalau Rojas, E.
dc.contributor.author Gleason, Mark
dc.contributor.department Plant Pathology and Microbiology
dc.date 2018-09-07T21:10:02.000
dc.date.accessioned 2020-06-30T06:23:18Z
dc.date.available 2020-06-30T06:23:18Z
dc.date.copyright Mon Jan 01 00:00:00 UTC 2018
dc.date.embargo 2019-07-01
dc.date.issued 2018-07-01
dc.description.abstract <p>Cucurbit bacterial wilt, caused by Erwinia tracheiphila, is a damaging disease of cucurbit crops in the Midwest and Northeast U.S. Current management of bacterial wilt relies primarily on insecticide applications to control striped and spotted cucumber beetles (Acalymma vittatum and Diabrotica undecimpunctata howardi, respectively), which vector E. tracheiphila. Development of alternative management strategies is constrained by a lack of understanding of bacterial wilt etiology. The impact of host age on rate on symptom development and extent of bacterial movement in the xylem of muskmelon (Cucumis melo cv. Athena) was evaluated following wound inoculation of 2- to 8-week-old plants in growth chamber experiments. Wilting occurred more rapidly in plants after inoculating E. tracheiphila into 2- or 4-week-old plants than 6- or 8-week-old plants. Recovery of viable cells from stem segments revealed that vascular spread of E. tracheiphila was more extensive below than above the inoculation point. These findings provide experimental evidence that host age impacts the rate of symptom development in cucurbit bacterial wilt and that movement of the xylem-inhabiting pathogen E. tracheiphila within muskmelon plants occurs primarily in the downward direction.</p>
dc.description.comments <p>This is a manuscript of an article published as Liu, Q., G.A. Beattie, E. Saalau Rojas and M.L. Gleason. 2018. Bacterial wilt symptoms are impacted by host age and involve net downward movement of Erwinia tracheiphila in muskmelon. <em>European Journal of Plant Pathology</em> 151:803-810. doi: <a href="http://dx.doi.org/10.1007/s10658-018-%201418-7" target="_blank">10.1007/s10658-018- 1418-7</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/plantpath_pubs/258/
dc.identifier.articleid 1257
dc.identifier.contextkey 12758876
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath plantpath_pubs/258
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/57710
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/plantpath_pubs/258/2018_Beattie_BacterialWiltManuscript.pdf|||Fri Jan 14 22:59:33 UTC 2022
dc.source.uri 10.1007/s10658-018-1418-7
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agriculture
dc.subject.disciplines Plant Pathology
dc.subject.keywords Phytopathogenic bacteria
dc.subject.keywords vascular wilts
dc.subject.keywords vegetable diseases
dc.subject.keywords ontogenic resistance
dc.title Bacterial wilt symptoms are impacted by host age and involve net downward movement of Erwinia tracheiphila in muskmelon
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 3fbe9503-8da0-4141-846b-aa8aa673e2f0
relation.isOrgUnitOfPublication a26b5928-54bb-4a0b-a973-95d649d1ad83
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