Slime Molds are analogous to a true fungus

These eukaryotes organisms are characterized by the presence, as a stage in their life cycle, of an ameboid multinucleate mass of cytoplasm call a plasmodium. The plasmodium of a slime mold is analogous to the mycelium of a true fungus. Both are coenocytes. In the latter, cytoplasmic flow is confined to the branching network of chitinous tubes, whereas in the former the cytoplasm can flow in all directions. This flow causes the plasmodium to migrate in the direction of its food source, frequently bacteria. In response to a chemical signal, 3’, 5’-cyclic AMP, the plasmodium, which reaches macroscopic size, differentiates into a stalked body that can produce individual motile cells. These cells, flagellated or ameboid, initiate a new round in life cycle of the slime mold. The cycle frequently is initiated by sexual fusion of single cells.
The growth of slime molds depends upon nutrients provided by bacterial or, in some cases, plant cells. Reproduction of slime molds via plasmodia can depend upon intercellular recognition and fusion of cells from the same species.