Pygmephori sellnicki collected on a wet glass slide. Pygmephorus sellnicki . Cover slip applied. During red pepper mite infestation of the mushroom, the mass of nematodes can be seen as a waving structures on the soil. LM image, slightly polarized light.
Nematodes possess a limited number of cells and show a relatively simple anatomy.
This is why the nematode Caenorhabditis elegans became a preferred model organism among several others for molecular biological investigations. LM image, using almost completely polarized light. Note that the cuticle of the nematode is birefringent, observed as a bright surface structure . Inoculated grains prepared under sterile conditions are called spawn and used to cultivate mushrooms. A detailed view of the hyphae of Agaricus bisporus growing inside the grain.