Isolation and Identification of <i>Colletotrichum nymphaeae as a</i> Causal Agent of Leaf Spot on <i>Rhododendron hybridum</i> Ker Gawl and Its Effects on the Ultrastructure of Host Plants.

ABSTRACT: Rhododendron hybridum Ker Gawl, a widely cultivated horticultural species in China, is highly valued for its ornamental and medicinal properties. However, with the expansion of its cultivation, leaf spot disease has become more prevalent, significantly affecting the ornamental value of R. hybridum Ker Gawl. In this study, R. hybridum Ker Gawl from the Kunming area was selected as the experimental material. The tissue isolation method was employed in this study to isolate pathogenic strains. The biological characteristics of the pathogens were determined using the mycelial growth rate method. The pathogens' influence on the host plant's ultrastructure was investigated using transmission electron microscopy (TEM). Colletotrichum nymphaeae was identified as the pat

SUBMITTER: Sun Y 

PROVIDER: S-EPMC12112765 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature