The image shows a microscopic view of a black substance extracted from feces and stained with a reagent called KOH (potassium hydroxide), which is used to dissolve chitin and reveal fungal structures.
The sample appears to be covered by an irregular layer of brownish-black, fibrous material resembling mycelium, the vegetative part of fungi responsible for absorbing nutrients from their environment.
This fungus is likely Stilbella fimetaria, a common saprotrophic species found in soil worldwide and often associated with decaying plant matter.
The image was captured at 40x magnification using an objective lens (x40), allowing the viewer to observe the fine details of the fungal material. – AI vision