Ultrastructure of Ceratocystis stenoceras Determined by SEM and TEM

Abstract

The ultrastructure of Ceratocystis stenoceras determined by SEM and TEM was studied. Ascocarp of C. stenoceras was round from 100 to 200 μm in diameter and was covered with mycelia, having a long slender neck from 300 to 500 μm in length. Numerous ascospores were observed on the section at the base of the ascocarp and were broad bean-like in shape from 1 to 2 μm in diameter. The wall of the ascocarp at the base was made up of two types of cells. The shape of the sympodulospores of C. stenoceras was oval and was about 2.5 μm in diameter, as that of the Sporothrix schenckii.