Identificaciones de mesentsev

A water sample was taken from a puddle. The sample had been in room temperature storage until assayed after 1 day.

400x In a rain puddle.
Discoidal amoeba. It moved with the hyaline zone at the front. It did not show any formation of pseudopodia.

From a water sample collected from a partially frozen puddle around a tree in a park. The sample was enriched with an oat and yeast infusion and observed 1 day after collection.

From a water sample collected from a partially frozen puddle around a tree in a park. The sample was enriched with an oat and yeast infusion and observed a week after collection.

From a water sample collected from a partially frozen puddle around a tree in a park. The sample was enriched with an oat and yeast infusion and observed a week after collection.