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92 Cards in this Set

  • Front
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4 ascocarp types

Cleistothecium, apothecium, perithecium, locule

Cleistothecium

Closed sheath, spherical, round asci

Apothecium

Open sheath, hymenium, no timed release, eggs in one basket

Perithicium

Stroma, surround sheath, timed release

Locule

Stroma part of fruiting body

A: yeast, B: Cleistothecium, C: Apothecium, D: Perithecium, E: Locule

Ascomycota septae

Simple porate

Telemorph

Sexual state, undergoes meiosis

Anamorph

Asexual state, undergoes mitosis

Ascocarp

Fruiting body

Biproduct of yeast

Ethanol, CO2, water

Hypertrophy

Enlargement of cells

Hyperplasia

Excessive cell reproduction

Purpose of hypertrophy and hyperplasia

Increase surface area for asci growth

Plectomycetes and orders

Ascomycota with cleistothecium


Eurotiales


Onygenales


Erysiphales

Moniliaceae vs dermatiaceae

Light spores vs dark

Ascus

Internal sac of ascomycota where sexual spores are born

Conidia

External structure where asexual spores are born

Sex state of Ascomycota

Antheridium moves up into trichogyne and then plasmogamy occurs

Heterothallic

Requires a mate

Homothallic

Able to reproduce with themselves

3 new classification subphylums

Taphrinomycotina: plant pathogens


Saccharomycotina: Yeasts


Pezizomycotina: everything else

Hemiascomycetes

Half-asscocarp, no fruiting structure

Three orders of Hemiascomycetes

Saccharomycetales: ascus arises from fusion cell


Taphrinales: ascus arises from a different cell


Protomycetales: more primitive

Asexual reproduction (yeasts)

Budding, disarticulation

Saccharomycetales

Order of hemiascomycetes, Yeasts

Taphrinales

Parasites of vascular plants

Yeast

Taphrinales

Taphrinales life cycle

Protomycetales

Most primitive hemiascomycetes, many modes of reproduction, typically fission, some are pathogens

Protomycetales

Plectomycetes orders

Eurotiales: cleistothecium, globose asci


Onygenales: gymnothecium, loosely woven wall


Erysiphales: powdery mildew, broadly clavate asci in a hymenium

Eurotiales

Penicillium

In order eurotiales, antibiotic, cheese

Penicillium conidia

Aspergillus

Aspergillus

In order Eurotiales, aflatoxin, citric acid, drugs

Onygenales

Can degrade keratin, medically important, true human pathogens

Racquet hyphae in onygenales

Ringworm and athletes foot

Onygenales

Gymnothecium

Thermal dimorphs

Change structure based on temperature

Erysiphales

Powdery mildews, hymenium, obligate parasite, haustoria

Haustoria

Branching structure into host plant cell

Haustoria

Cleistothecium of erysiphales

Cleistothecial appendages of powdery mildew

Perithecia of erysiphales

Aspergillus niger

Citric acid

Perithecium

Flask structure with apical pore and hymenial layer

Stroma

Mass of sterile tissue

Periphyses

Sterile filaments in tip of Perithecium

Paraphyses

Sterile filaments around asci in Perithecium

Ascospore dispersal

Orders of pyrenomycetes

Sphaeriales


(Xylariales, diaporthales, sordariales)


Hypocreales


Ophiostomatales

Sordariales

Order in order sphaeriales: single dark Perithecia

Xylariales

Stroma with perithecia embedded

Diaporthales

Long neck/stem

Chestnut blight

Introduced to new york from asia in 1904, caused by Cryphomectria parasitica, canker disease, diaporthales

Diaporthales

Hypocreales

Hypocreaceae: brightly colored, soft or waxy,


clavixipitaceae: stroma developed, needle like ascospores

Cordyceps

Important clavicipitaceae

Cordyceps, claviceps: ergot poisoning

Ophiostomatales

Beaked perithecia, scattered globose asci

Dutch elm disease

Ophiostomatales

Discomycetes

Apothecium, asci born exposed, ascospores forcibly discharged,

Operculate

Lid like opening in discomycetes

Orders of Discomycetes

Phacidiales: ascospores thread like


Helotiales: ascospores rounded


Pezizales: operculate asci


Tuberales: ascospores spherical and ornamented

Tar spot of maple (Rhytisma acerinum) in phacidiales

Phacidiales

Heliotales, Cup or tongue shaped,

Pezizales

Conidia rare, saprophytes, morrells, operculate,

Tuberales

Truffles, all produce ascocarps below ground, spores not discharged,

Loculoascomycetes

Stroma with embedded psuedothecia

Loculoascomycetes

Loculoascomycetes

Heliotales, blue stain

Jelly babies, hypocreales

Tuberales, truffle

Phacidiales

Morchella, pezizales

Loculoascomycetes

Venturia inequalis, apple scab

Aspergillus

Deuteromycetes

No known teleomorph, alternate classification scheme

Three classes of deuteromycetes

Blastomycetes: Yeasts


Coelomycetes: asexual spores borne on pycnidia or acervuli


Hyphomycetes: asexual spores borne not on structure

Orders of blastomycetes

Cryptococcales: busding yeast


Sporobolomycetes: form on conidia then buller drop

Ceolomycetes orders

Sphaeropsidales: pycnidia


Melanconiales: acervuli

Hyphomycetes orders

Hyphomycetales: moniliaceae and dematiaceae


Stilbellales: synnata or coremia


Tuberculariales: thin pads of sterile hyphae

Conidiogenesis forms

Blastic: comes out top


Thallic: extends then splits

How does evolution occur with mitosis

Parasexual cycle, transient diploid, mitotic crossing over, mutation