| Abstract:Willow is one of the main species of forest trees in Xinjiang，willow leaf rust caused by Melampsora is common in Xinjiang，and has many types of pathogens.In order to explore the species diversity, host range and distribution of the pathogen of willow rust in Xinjiang, the samples from various habitats in Xinjiang were collected and the morphology and phylogeny (ITS and LSU sequence) at uredinial and telial stages were classified and identified, and the host range and distribution characteristics were discussed.The results showed that nine Melampsora species,including M.salicis-michelsonii, M.amygdalinae, M.salicis-cavaleriei，M.salicis-sinicae,M.arctica, M.iranica, M.larici-epitea, M.salicis-albae and M.salicis-argyraceae,were identified.Among the 14 infected host species under Salix, eight species,including S.argyracea, S.capusii, S.iliensis, S.metaglauca, S.michelsonii, S.serrulatifolia, S.songarica and S.tianschanica,were the new records for rust host.This study provides a theoretical basis for the diagnosis and control of fungal diversity and forest diseases in Xinjiang, and also provides a basis for the further study of fungal diversity and diagnosis and control of forest diseases in Xinjiang. |
