create characteristic crest-like, undulate structures; vesicles
often present near the entry point
intraradical hyphae
very thin (1 - 2 um diameter), usually several threads run together
arbuscules
seem to occur only in particular developmental stages
vesicles
small (diameter approx. 7 um), vesicle-like structures usually
near the entry point
The role of hyphae structure displayed below is unclear: it might be
some type of arbuscule, but mostly it resembles the "fan-like" hyphal structures
described in the literature.
