common fungal spores
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Common Fungal Spores. Estelle Levetin, PhD. Fungal Spore Characteristics. Spore size Spore shape Number of cells Attachment Scars Wall characteristics Spore color. Spore Size, Shape, and Septation. SIZE : 2 m m to 100 mm - PowerPoint PPT PresentationTRANSCRIPT
Common Fungal SporesEstelle Levetin, PhD
Fungal Spore Characteristics Spore size Spore shapeNumber of cellsAttachment ScarsWall characteristicsSpore color
Spore Size, Shape, and SeptationSIZE: 2mm to 100 mmSHAPE: Globose, elliptical, fusiform, asymmetric, lemon-shaped, barrel-shaped, curvedSEPTATION: Non-septate (one cell), single septum, transverse septa, transverse and longitudinal septa, random septa, pseudoseptate
Other CharacteristicsATTACHMENTS: Attachment scars, attachment pegsAPPENDAGESWALL CHARACTERISTICS: Smooth, granular, reticulate, spines, warts, wall thicknessCOLOR: Hyaline (colorless) to deeply pigmented
GloboseBarrel-shapedNon-septateRandom septaLemon-shapedClub-shapedTransverse septaAttachment scarsEllipticalCurvedTransverse and Longitudinal septaOrnaments: spinesAsymmetric and germ poreCylindricalPseudoseptateAppendages
Spore color
Asexual SporesAlso known as Deuteromycetes, Fungi Imperfecti (imperfect fungi), or Mitospores
Asexual SporesTypically the most abundant spores in the atmosphereConidia often formed on specialized hyphae called conidiophoresAsexual stage of ascomycetesLook for attachment scars where the spores were attached to the conidiophore
Cladosporium
Note the septumCladosporium
Several species of Cladosporium are common in the atmosphere
Note the prominent attachment scars on Cladosporium conidia
Alternaria
Alternaria
Curvularia
CurvulariaNigrosporaDrechslera
Drechslera-type sporesSeveral genera of fungi have similar cylindrical sporesDrechsleraBipolarisExserohilumHelminthosporium
Drechslera-type spores
Pithomyces
Note the colorless attachment at the base of Pithomyces spores
Epicoccum
Penicillium speciesProduce distinctive conidiophores (spore bearing structures)Spores are usually spherical to oval and form in chains
Aspergillus speciesProduce distinctive conidiophores (spore bearing structures)Spores are usually spherical to oval and form in chains
Penicillium-Aspergillus type spores
NigrosporaNigrospora CultureAir Sample
Periconia
Botrytis CladosporiumCercospora
PolythrinciumPeronospora
Oidium
Tetraploa
Torula
Stemphylium
Spegazzinia
Fusarium
Stachybotrys
Division Ascomycota
Ascospores are produced in an ascus. Eight ascospores are found in each ascus without any attachment scars
Ascospores are sometimes found in groups of eight in air samples
Leptosphaeria ascospores
Chaetomium ascospores
Pleospora ascospores
Diatrypella ascospores
Sporomiella ascospores
Venturia ascospores
Many ascospores on a rainy day
Division Basidiomycota
BasidiosporeBasidium
Ganoderma basidiospores
Other basidiospores that are easy to recognizeAgrocybe - typeCoprinus
Coprinus and Ganoderma basidiospores
Psathyrella Psathyrella velutinaRussulaStropharia
LycoperdonCalvatiaPisolithusScleroderma
Rust spores: PucciniaPuccinia uredosporesPuccinia teliospores
Smut Spores
Smut Spores
Myxomycete (slime mold) spores
Other slime mold spores
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