Fungi Flashcards
(29 cards)
Body plan of fungi
unicellular (yeast), filamentous (mold), thalloid (mushroom)
individual filaments of filamentous and thalloid fungi
hyphae
several branches forming a network in filamentous and thalloid fungi
mycelium
three types of hyphae
- septate hyphae
- coenocytic hyphae
- pseudohyphae
develop in living host tissue and causes symptoms of disease (does not kill the host)
biotroph
actively kills host cell and live in dead tissue
nectotroph
develops in living host tissue without causing any symptoms of disease
endophyte
decomposers obtaining nutrients from dead organism
saprotrophs
life cycle of fungi
haplontic
A stage in the sexual reproduction of fungi, in which the
protoplasm of two parent cells (usually from the mycelia)
fuse without the fusion of nuclei, effectively bringing two
haploid nuclei close together in the same cell.
plasmogamy
The process of fusing together two haploid cells; refers
specifically to the fusion of two nuclei.
The resulting single cell is diploid, containing two copies of
the genome.
karyogamy
fungi classification
- Basidiomycota
- Ascomycota
- Glomeromycota
- Zygomycota
- Chytridiomycota
- Mucoromycota
-chytrids
-has flagellated motile cells
-water molds found in freshwater
-unicellular
-some are parasitic while others feed on detritus
Chytridiomycota
-includes some members of Zygomycota
-most are saprobes but others are parasites and symbionts
-forms thick-walled zygospore after karyogamy
-zygospore becomes dormant for months before germinating
Mucoromycota
common bread mold
Rhizopus
fungi that are used in tempeh/also known as tempeh starters
Rhizopus oligosporus or Rhizopus oryzae
-also former members of zygomycota
-do not produce zygospores
-obligate symbionts of land plants
Glomeromycota
an obligate symbionts of land plants under Glomeromycota
Arbuscular mycorrhiza
-the largest fungal phylum
-contains ascus
-range from unicellular yeasts
Ascomycota
the sexual structure containing spores of ascomycetes
ascus
causes white nose syndrome on bats
Pseudogymnoascus destructans
-second largest group of fungi
-have bodies composed of hyphae and sexually reproduces
Basidiomycota
members of basidiomycota
basidiomycetes
basidiomycetes sexually reproduce through club-shaped cells called
basidia