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Kingdom Fungi. Fungi Structure & Basics. Hyphae: thin strands of cells that make up the fungus body Hyphae spread into a larger mass (mycelium) Fruiting body: Above-ground reproductive structure Cell wall of chitin (common to animals) Heterotrophs: hyphae release enzymes to absorb nutrients
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Kingdom Fungi
Fungi Structure & Basics • Hyphae: thin strands of cells that make up the fungus body • Hyphae spread into a larger mass (mycelium) • Fruiting body: Above-ground reproductive structure • Cell wall of chitin (common to animals) • Heterotrophs: hyphae release enzymes to absorb nutrients • Classification determined by sexual reproduction methods
Asexual Sporangia produce spores Spores can grow into new hyphae when released Sexual Hyphae from 2 organisms fuse and form a diploid zygospore Zygospore grows new hyphae when released Zygote Fungi
Haploid spores land Hyphae grow from each spore…a mat of mycelium accumulates . . Let’s zoom in…. ground
Hyphae of Fungus 1 Hyphae of Fungus 2 Hyphae of fungi grow together Diploid zygospore is created New diploid hyphae grow from the zygospore
Hyphae grow into a mat of mycelium….Sporangia grow from the mycelium Sporangia release spore . . . mycelium
Spores land Hyphae grow into a mat of mycelium to restart the cycle . . ground
Club Fungi • Basidia: club-like structure that produces sexual spores (located in gills underneath) • Hyphae of two individuals grow into mycelium • Fruiting body created • 2 nuclei fuse to create a zygote • Zygote undergoes meiosis to make spores
Spores will land Fungus #1 mycelium grows underground….Fungus #2 mycelium grows underground Two fungi grow together and fuse . Diploid fruiting body grows from the mass . Haploid spores created & released from the underside of the fruiting body . . . . . ground
Spores will land New hyphae will grow into a new mycelium Cycle repeats . . ground
Sac Fungi • Ascus: sac that contain spores during sexual reproduction • Two hyphae grow together to create fruiting body • Spores released • Ex: Yeast, morals, truffles
Spores will land Fungus #1 mycelium grows underground….Fungus #2 mycelium grows underground Two fungi grow together and fuse . Diploid fruiting body grows from the mass . Haploid spores created & released from the ascus ground
Spores will land New hyphae will grow into a new mycelium Cycle repeats . . ground
Spores will land Fungus #1 mycelium grows underground….Fungus #2 mycelium grows underground Two fungi grow together and fuse . Diploid fruiting body grows from the mass . Haploid spores created & released from the ascus ground
Spores will land Fungus #1 mycelium grows underground….Fungus #2 mycelium grows underground Two fungi grow together and fuse . Diploid fruiting body grows from the mass . Haploid spores created & released from the ascus ground
Lichens • Fungus + blue-green bacteria or green algae • Mycelium of fungi surrounds the green organism • Grow on rocks, soil, trees • Mutualistic relationship • Algae/bacteria: provides food • Fungus: benefits unclear (warmth, substrate to grow in) • Food source & help create soil