Infection and Fungal Development of Tubakia dryina on Sweet Gum (Liquidambar styraciflua)

Abstract

Infection and fungal development of Tubakia dryina were investigated on leaves of sweet gum using a combination of microscopic techniques. Conidia of T. dryina adhered to the leaf surface and formed septate germ tubes. Germ tubes terminated in small appressoria that formed directly over epidermal cells. Intra-and intercellular hyphae ramified extensively throughout the leaf tissue. Host cells associated with the infection site became necrotic and collapsed, resulting in macroscopic disease symptoms.

Non‐linear reduction of photosynthetic ability in oak trees infected with Tubakia koreana causing Quercus leaf blight

“…Although a variety of Tubakia species have been increasingly reported, a majority of studies have examined Tubakia dryina (Sacc.) Sutton, which is a single and broadly defined species in North America and Europe (Boroń & Grad, 2017; Kowalski, 2006; Munkvold & Neely, 1990; Park et al., 2020; Taylor & Clark, 1996). In addition, most studies have focused on the symptoms, infection, fungal development and pathogenicity of Tubakia spp., but there is no study on the physiological effects of Tubakia species infection on oaks.…”