DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY
Coloured scanning electron micrograph (SEM) of Memnoniella echinata fruiting structure and spores. Memnoniella is a cellulolytic fungus very closely related to Stachybotrys. Both fungi have a worldwide distribution and are often found together in soil and plant debris. The major morphological difference between the two fungi is that the conidia (spores) are in long persistent chains (conidia are aggregated in slimy heads in Stachybotrys). Memnoniella echinata mycotoxins could have toxicity similar to that of some isolates of S. chartarum and both are considered toxic moulds. Memnoniella is a dry spore that gets carried by the wind easily and is found on many surfaces. Magnification: x500 when shortest axis printed at 25 millimetres.
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