Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9.
Mycologia. 2004 Sep-Oct;96(5):1136-42.
Details of the development of endoconidia were basically the same in Endoconidioma populi and Phaeotheca fissurella. In both species, endoconidiogenesis involved (i) subdivision of conidiogenous mother cells by septation to form two to several daughter cells; (ii) accumulation of an electron-dense material between the daughter and mother cell walls; and (iii) separation of the daughter cells by septum schizolysis, accompanied by the dissolution of mother cell wall. Conidiomata of E. populi were unique in having a closed peridium and a locule filled with conidiogenous mother cells and, therefore, we proposed the new term, cleistopycnidium (pl. -a), for this structure. In the cleistopycnidium of E. populi, endoconidiation usually began in the core of the locule and spread outward. Release of endoconidia was by the degeneration of peridial cell walls.
内分生孢子的发育细节在内生毛壳菌和拟裂褶菌中基本相同。在这两个种中,内分生孢子发生包括:(i)通过隔膜将产孢母细胞细分,形成两个到多个子细胞;(ii)在子细胞和母细胞壁之间积累电子致密物质;(iii)通过隔膜的裂解法使子细胞分离,同时母细胞壁溶解。内生毛壳菌的分生孢子器具有独特的封闭的壁和充满产孢母细胞的腔室,因此,我们提出了新术语,闭囊壳(复数 -a),用于此结构。在内生毛壳菌的闭囊壳中,内分生孢子通常从腔室的核心开始形成并向外扩散。内分生孢子的释放是通过壁的退化来完成的。