• Grow as filaments called hyphae; mass of hyphae is called mycelium
  • Some have septa (cross walls) which divide the filament into compartments containing single nucleus
  • Cell walls consist of Chitin: nitrogen-containing polysaccharide

Ecological Interaction

  • Most either parasites or decomposers: absorb breakdown products from excreted digestive enzymes

Mutualistic Arrangements

  1. Mycorrhizae: mutualistic relationships between fungi and plants
  • Fungus grows on the roots of plants → facilitate movement of water & nutrients
  • Plants provides sugar
  1. Lichens: relationship between fungi and algae
  • Fungus provides water and protection