Pathogen identification of dry rot of purple yam
XU Yuanliu
HUANG Lei
LIU Min
YANG Jiawei
BAI Qingrong
YANG Chao
Abstract：To clarify the taxonomic status of the pathogen causing dry rot of purple yam in Xingyi city,Guizhou province in 2023,15 strains with the same cultural characteristics were obtained by tissue isolation and single spore purification.The representative strain SY2-2 was confirmed as pathogen of the disease by Koch's test.Based on morphological charac-teristics and ITS and RPB2 sequence analysis,a phylogenetic tree was constructed.Penicillium sclerotigenum was identi-fied as the pathogen causing the dry rot of purple yam.The results lay a theoretical foundation for the scientific control of dry rot of purple yam in Guizhou province.
Keywords：Purple yamDry rotPenicillium sclerotigenumPathogen identification
Publication Date：2025-02-04
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 129-133 )