This photomicrograph reveals some of the ultrastructural morphology exhibited by the fungal organism, Exserohilum rostratum. In this particular view you'll note the ellipsoid-shaped conidia were sprouting from atop filamentous hyphae. The conidial cells are contained within sacs instead of being sequestered in septate confined spaces, which is known as being distoseptate, and the proximal end of each conidia, i.e., the end that is attached to the conidiophore, gives rise to a protuberant and truncated hilum. For a another, wider view of these structures see PHIL 15144.
November 20, 2012
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