Bozoğlu, TubaAlkan, MehtapDerviş, SibelÖzer, Göksel2022-08-092022-08-092022https://www.scopus.com/record/display.uri?eid=2-s2.0-85135224482&origin=SingleRecordEmailAlert&dgcid=raven_sc_affil_en_us_email&txGid=44af6dd74d6c28ba01b8ae5d556d2ced&featureToggles=FEATURE_NEW_DOC_DETAILS_EXPORT:1,FEATURE_EXPORT_REDESIGN:0https://hdl.handle.net/20.500.12514/3137https://www.webofscience.com/wos/woscc/full-record/WOS:000834801400001?AlertId=d383397b-4355-449e-9419-70f9e0e77c15&SID=EUW1ED0C13jEGt7Yxd7bywdJHuz5dIn August 2021, jimson weed (Datura stramonium) plants growing as weeds in potato felds in Bolu province, Turkey, exhibited leaf spots with dark concentric rings. Sunken and lens-shaped lesions with a light center were also frequently observed on petioles, branches, and stems. Based on morphological characteristics and phylogenetic analysis of the transcription elongation factor 1-α, RNA polymerase second largest subunit, and glyceraldehyde-3- phosphate dehydrogenase loci, the causal agent was identifed as Alternaria crassa. The pathogen was successfully re-isolated from inoculated jimson weed plants in the pathogenicity assay, proving Koch’s postulates. Alternaria crassa caused necrotic lesions on potato plants, similar to those of early blight, confrming them as an alternative host of the pathogen. This is apparently the frst report of leaf spot caused by A. crassa on jimson weed in Turkeyen10.1007/s13314-022-00471-1info:eu-repo/semantics/openAccessJimson weed · Potato · Alternaria leaf spotArticle17114WOS:0008348014000012-s2.0-85135224482