Fungi Basics • Heterotrophs • Cannot perform photosynthesis • Release enzymes to absorb nutrients • Cell composition similar to animals • Reproduction: Sexual & Asexual • Classified by how they reproduce
Comparing Plants & Fungi • Plants and fungi have different traits: • Fungal cell walls are made of chitin. • Plant cell walls are made of cellulose. • Plants have chlorophyll and photosynthesize. • Fungi absorb food through hyphae. • Plants and fungi have similar traits: • Both are nonmoving. • Grow underground and aboveground. • May produce spores.
Fungi Structure • What grows underground? • Hyphae: thin strands of cells that make up the fungus body • Hyphae branch into a larger mass (mycelium) • What grows above ground? • Fruiting body: reproductive structure creates spores
Bread molds Get name due to ability to create zygospore Protective spore surrounding the zygote Spores produced inside sporangia (sporangium) Spores released into air Bread MoldFungi
Club Fungi • Mushrooms, puffballs, shelf fungi • Fruiting body looks like club • Spores produced in structures called basidia (basidium) • Spores released into air . . . . Grassy ground
Sac Fungi • Yeast • Single celled • Reproduce asexually through budding • Morels, truffles • Fruiting body resembles a sac • Spores produced in structures called Asci (ascus) • Spores released into air
Mushroom Reproduction Gills
Spores will land Fungus #1 mycelium grows underground….Fungus #2 mycelium grows underground Two fungi grow together and fuse…new mycelium created . Fruiting body sprouts . New spores released from the fruiting body . . . . . ground
Lichens • Fungus + algae or cyanobacteria • Mycelium of fungi surrounds the green organism • Grow on rocks, soil, trees • Mutualistic relationship • Algae/bacteria: obtains home to grow within; gets water • Fungus: obtains nutrients
REview Name the three major types of fungi. Which characteristic is used to classify the various types of fungi? Which fungi produce asci? Which fungi produce basidia? Which fungi produce zygospores? What is the above ground structure of a fungus called? What objects are released from the fruiting body? Label the diagram.