Ozen, Hasan CetinSavasci, ServanAsan, Hilal SurmusKizmaz, Veysi2025-02-152025-02-1520202619-9149https://doi.org/10.18016/ksutarimdoga.vi.641796https://hdl.handle.net/20.500.12514/6005KIZMAZ, Veysi/0000-0002-7864-5912; surmus asan, hilal/0000-0001-5336-974XTomato (Lycopersicon esculentum L.) is one of the most widely used products in nutrition. But this plant suffers significant loss of yield due to parasitic plant infection. Dodder (Cuscuta spss.), a flowering plant belonging to the Convolvulaceae family, is one of the most harmful parasites for tomatoes. Although some tomato varieties have developed resistance to this, Cuscuta is the most important disease that has a negative impact on tomato yield. In this study, it was investigated that how Lice tomato is affected by Cuscuta babylonica Aucher infection and whether it develops resistance to it. For this purpose, following Cuscuta infection, the amount of fatty acids, calcium (Ca2+) and some phenolic compounds in the leaves of the tomatoes were investigated. The results of the study showed that the Cuscuta infection increased the amount of 16:1, 18:0 and 18:1 fatty acids, Ca2+ and some phenolics such as chlorogenic acid, rutin, quercetin and salicylic acid which are effective in defense against pathogens.en10.18016/ksutarimdoga.vi.641796info:eu-repo/semantics/openAccessCalciumCuscuta BabylonicaFatty AcidsPhenolic CompoundsLycopersicon EsculentumArticle23614831488N/AWOS:0005922314000100