Answer:
Hyphae: Cell filaments,mostly septate
Mycelium: Mass of hyphae
Molds: mostly filamentous, Yeasts: non-filamentous,unicellular fungi
Budding yeasts divide asymmetrically.
Dimorphic fungi: yeast-like at 37°C, mold-like at 25°C.
Fungal spores are reproductive spores (unlike bacterial spores). Used to differentiate fungi.
Growth in acidic, low-moisture, high osmotic pressure environments.
The thallus (body) of a mold or fleshy fungus consists of long filaments of cells joined together; these filaments are called hyphae. Hyphae can grow to immense proportions. The hyphae of a single fungus in Oregon extend across 3.5 miles.
In most molds, the hyphae contain cross-walls called septa (singular: septum), which divide them into distinct, uninucleate (one-nucleus) cell-like units. These hyphae are called septate hyphae. In a few classes of fungi, the hyphae contain no septa and appear as long, continuous cells with many nuclei. These are called coenocytic hyphae. Even in fungi with septate hyphae, there are usually openings in the septa that make the cytoplasm of adjacent "cells" continuous; these fungi are actually coenocytic organisms, too.
Mycelium a mass of long filaments of cells that bring and intertwine, typically found in molds.
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