domain bacteria domain archaea domain eukarya common ancestor kingdom: fungi domain eukarya

14
Domain Bacteria Domain Archaea Domain Eukarya Common ancestor Kingdom: Fungi Domain Eukarya

Upload: adolfo-niman

Post on 15-Dec-2015

253 views

Category:

Documents


0 download

TRANSCRIPT

DomainBacteria

DomainArchaea

DomainEukarya

Common ancestor

Kingdom: Fungi

Domain Eukarya

General characteristics Classification criteria

eukaryotes heterotrophs

feed by absorption mostly multicellular

except unicellular yeasts cell wall

chitin rigid polysaccharide

sexual & asexual reproduction

Fungal Structure Fungal body

mycelium thread-like cells hyphae

Cells multiple nuclei

Cell wall chitin

just like crab shells

Internal structure Eukaryotic cells

long, thread-like cells filamentous

incomplete divisions between cells septum

multiple nuclei

septum

chitin cell wall

nucleipore

plant cell

fungal hypha

plant cellmembrane

plantcell wall

Modes of Nutrition Heterotrophic

secrete digestive enzymes feed by absorption

predators paralyzing prey

parasites feeding on living creatures

decomposer breakdown dead remains

Fungal Diversity

Chytridiomycota

Zygomycota

Basidiomycota

Ascomycota

Fungi

Ecological Roles Decomposers

recycle nutrients

Symbiotic Relationships lichen

fungi + algae pioneer species in

ecosystems makes soil from bare rock

mycorrhizae fungi + plants enables plants to absorb more water

Mycorrhizae Critical role in plant growth

extends water absorption of roots

withoutmycorrhizae

withmycorrhizae

EctomycorrhizaEndomycorrhiza

Reproduction Asexual

budding in yeast

Sexual spores

spread by wind joining of + & – haploid spores

haploidspores

hypha

(n)haploid

(2n)diploid

mating strain

mating strain

FUSION ofgametangia

sporangium

spores

MEIOSIS

Zygomycete (Bread Mold) Life Cycle

Basidiomycete Life Cycle

FUSION ofhyphae

fruiting body

spores

gills linedwith basidia

basidium

zygote(n)haploid

(n + n)dikaryotic

strain

strain

2n (diploid)

Fairy Rings

The FIRST Antibiotics

Any Questions??