First Detection of <i>Sclerotinia nivalis</i> on Carrot (<i>Daucus carota</i> subsp. <i>sativus</i>) in Russia and Comparative Pathogenicity of <i>Sclerotinia</i> Isolates on Carrot.

ABSTRACT: White mold of carrot is mainly caused by Sclerotinia sclerotiorum, while Sclerotinia nivalis is rarely reported. This study provides the first molecular confirmation of S. nivalis on carrot in Russia, expanding knowledge of its global distribution. rDNA-ITS sequencing (100% identity with reference strains) and phylogenetic analyses confirmed the isolate as S. nivalis. The growth, sclerotia formation, temperature response, pathogenicity, and fungicide sensitivity of four Sclerotinia strains (S. sclerotiorum from carrot, rapeseed, and soybean, and S. nivalis from carrot) were compared. S. nivalis showed slower growth, smaller but more numerous sclerotia (2-5 mm), and an optimal temperature of 15 °C, lower than S. sclerotiorum<

SUBMITTER: Medvedeva VV 

PROVIDER: S-EPMC12655907 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature