BESC 204 Exam 1 with Complete Solutions Graded A+
Characteristics of Basidiomycota - Answer-- Produce a basidiospore as the sexual spore
- Produce a basidium, usually on a macroscopic basidiocarp
- Production of a well developed septate mycelium
- Production of clamp connections in some speci...
Characteristics of Basidiomycota - Answer-- Produce a basidiospore as the sexual
spore
- Produce a basidium, usually on a macroscopic basidiocarp
- Production of a well developed septate mycelium
- Production of clamp connections in some species
- Presence of Dolipore Septa in some species
- Extended Dikaryotic stage
Most Basidiomycota form their Basidiospores in/on a structure called the - Answer--
Basidiocarp
Commonalities between Basidiomycota and Ascomycota - Answer-- Compartmentalized
Mycellium
- Dikaryotic stage (Extended in Basidiomycetes)
- Specialized spore producing tissue (Hymenium)
- Production of Conidia (rare in basidiomycetes)
- Very likely derive from common ancestor
"Lower Fungi" make - Answer-- Sporangia
"Higher Fungi" make: - Answer-- Conidia
Clamp Connections in Basidiomycota - Answer-- A lateral connection between adjacent
cells of a dikaryotic hypha
- Ensures that each cell of the hypha will contain two dissimilar nuclei
Appressorium - Answer-- Atructure by which a pathogenic fungus attaches itself to a
plant
Dolipore Septum - Answer-- Barrel-shaped swelling around central pore of
Basidiomycota septa
Basidiocarp - Answer-- Fruiting structure of basidiomycota where basidiospores are
produced
Karyogamy - Answer-- Fusion of nuclei
Holomorph - Answer-- All forms or morphs of the fungus, either latent or expressed
- A fungus which consists of all sexual and asexual stages in its life cycle.
, Teleomorph - Answer-- Sexual (perfect, meiotic) form. you have to know this in order to
classify a fungi. produces meiospores
- The sexual stage in the life cycle of a fungus; also refers to a fungus that produces
both sexual and asexual spores
Thallus - Answer-- "Body" of fungi
Germ tube - Answer-- First growth from spore
Fungus Definition - Answer-- Aeukaryotic, heterotrophic organism, devoid of chlorophyll,
with chitin in cell walls, that obtains its nutrients by absorption, usually reproduces by
spores, and usually exhibits a pronounced polarization of growing cells
Anamorph - Answer-- Asexual (imperfect, mitotic) forms producing mitospores
- A stage of fungal reproduction, where cells are asexually formed by the process of
mitosis.
Basidiocarp / Variety: Agarics - Answer-- The hymenium is found on the surface of gills
Basidiocarp Variety: Polypores - Answer-- Hymenium lining pores or tubes
Gasteromycetes - Answer-- Spores no discharged at maturity, as with Ballistospores,
and therefore sometimes referred to Statismospores
- They simply fall off their basidia/sterigma at maturity into the spore mass of the Gleba
Phallimycetidae - Answer-- The "Stalked Puffballs"
- And Earthstars
- Stinkhorns - best known for the fetid odor they produce at spore maturity
Uromyces appendiculatus - Answer-- "Bean Rust"
- Micro-fabricated surfaced helped define the topographical signal inductive for initiation
of appressoria (can sense the surface)
Thigmotropism - Answer-- Surface sensing
- A growht response to touch
Mycorrhizae - Answer-- Symbiotic relationships between fungal hyphae and plant roots
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