Abstract
Hutching and Jones (1981), in a scan ning electron microscopic study on
conidial adhesion and germination in aquatic hyphomycetes, reported that theic
conidia initiallyace physically held to a solid substrate and then adhesivestructurce
ere formed. These structures may be simple as in the case of Articulospora
terraciadia Ingold, or more elaborate appresoria in the case of Tefraciadium
marchalianum de Wildeman.
They also reported that an extracellular sheath is produced by the
conidium prior to germination, and conidia on germination produce hyphae
which are enveloped in an extracellular polysaccharide sheath, This sheath
may aid in attachment of the hyphae to the substrate. Appresoria, according
to their findings, may be formed on the hyphae jn particular species.
