Phylum ascomycota orders erysiphales laboulbeniales
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Phylum Ascomycota Orders Erysiphales Laboulbeniales

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Phylum ascomycota orders erysiphales laboulbeniales

Phylum AscomycotaOrders Erysiphales & Laboulbeniales

Mycology (4032605)

Lecture 7

.. 404552003

.. 404552013

11


Phylum ascomycota orders erysiphales laboulbeniales

Pyrenomycetes

Plectomycetes (Eurotiales)

Chaetothyriales

Loculoascomycetes 1

Loculoascomycetes 2

Filamentous ascomycetes

Inoperculate discomycetes

Lecanoralean discomycetes

Operculate discomycetes

Erysiphales (powdery mildews)

Laboulbeniales

Saccharomycetales

Archiascomycetes

Basidiomycota


Erysiphales

Erysiphales

  • = Powdery Mildews

  • Biotrophs of vascular plants

    • Biotroph:

    • 21 , 437 40,000 ()


Powdery mildew symptoms

Powdery Mildew Symptoms

Photo by Claudia Nitschwitz


Phylum ascomycota orders erysiphales laboulbeniales

    • appressoria

  • haustoria

    • Haustoria

  • Overwinter

  • cleistothecia


Phylum ascomycota orders erysiphales laboulbeniales

appressorium

Plasma membrane

Penetration peg

haustorium

Host cytoplasm

Plasma membrane

Plant cell wall

fungus


Phylum ascomycota orders erysiphales laboulbeniales

  • , hyaline conidiophores superficial mycelium;

  • 1, hyaline holoblastically basipetal chains

  • 1 30,000


Phylum ascomycota orders erysiphales laboulbeniales

  • Wind-dispersed

  • , appressorium

  • haustorium


Phylum ascomycota orders erysiphales laboulbeniales

Ovulariopsis

Oidium type anamorph

Oidiopsis

Streptopodium

Fibrosin bodies

From Braun, 1987


Phylum ascomycota orders erysiphales laboulbeniales

Microsphaera alni anamorph on Vaccinium


Phylum ascomycota orders erysiphales laboulbeniales

  • Cleistothecia superficial mycelium

    • basal layer

    • Globose pyriform


Phylum ascomycota orders erysiphales laboulbeniales

/

  • asci/cleistothecium 1

  • Ascospores hyaline, 1,

  • 1-8 ascospores/ascus

  • asci/cleistothecium


Phylum ascomycota orders erysiphales laboulbeniales

  • Anamorph

  • asci/ascocarp

  • Cleistothecial

  • Mycelioid

    • Rigid

      • Spear-like

      • dichotomously


Phylum ascomycota orders erysiphales laboulbeniales

Microsphaera alni cleistothecia


Phylum ascomycota orders erysiphales laboulbeniales

Sawadea bicornis cleistothecia


Phylum ascomycota orders erysiphales laboulbeniales

Sawadea bicornis cleistothecial appendages


Blumeria

Blumeria

  • B. graminis--

  • Mycelial setae

  • Digitate haustoria

  • Several asci/ascocarp

  • conidiophore


Mycelioid

Mycelioid

  • asci/ascocarp :

    • Eryisiphe (100 spp)

      • Oidium anamorph

    • Leveillula (8 spp.)

      • mycelium

      • Oidiopsis anamorph ()

  • One ascus/ascocarp:

    • Sphaerotheca (50 spp.)

      • Oidium anamorph fibrosin bodies


Dichotomously

Dichotomously

  • 1 ascus/ascocarp:

    • Podosphaeria (12 spp.)

      • Oidium anamorph fibrosin bodies

  • asci/ascocarp :

    • Microsphaera (125 spp.)

      • Oidium anamorph

    • Sawadaea (6 spp.)

      • Oidium anamorph fibrosin bodies


Spear like phyllactinia

Spear-like --Phyllactinia

  • 24

  • ascocarp

  • ascocarp

  • OvulariopsisStreptopodium anamorphs


Phylum ascomycota orders erysiphales laboulbeniales

  • Uncinula (81 spp)

    • Oidium anamorph

    • asci/ascocarp

  • Uncinuliella

    • bristle-like ascocarp


Phylum ascomycota orders erysiphales laboulbeniales

  • Phylogeny ITS rDNA 6 ascocarp (Saenz & Taylor 1999, Can. J. Botany 77:150-168)


Phylum ascomycota orders erysiphales laboulbeniales

Ovulariopsis

Oidium type anamorph

Oidiopsis

Streptopodium

Fibrosin bodies

From Braun, 1987


Laboulbeniales

Laboulbeniales

  • 5 , 140 , > 1800

  • 4/5 , thallus


Laboulbeniales cont

Laboulbeniales (cont.)

  • , 1 arthropod

  • Roland Thaxter (1858-1932) Farlow ,

    • Laboulbeniales ( 1896-1931)


Phylum ascomycota orders erysiphales laboulbeniales

Roland Thaxter


Phylum ascomycota orders erysiphales laboulbeniales

From "Contributions towards a monograph of the Laboulbeniaceae"


Phylum ascomycota orders erysiphales laboulbeniales

Hosts of Laboulbeniales. From Meredith Blackwells web page:

http://lsb380.plbio.lsu.edu/Netscape.comp.laboul.page


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