Netherlands Journal of Plant Pathology

, Volume 73, Issue 4, pp 121–125 | Cite as

Electron microscopic observations on haustoria isolated from cucumber leaves infected with powdery mildew

Elektronenmicroscopische waarnemingen aan haustoriën, geïsoleerd uit met echte meeldauw geïnfecteerde komkommerbladeren

  • H. M. Dekhuijzen
  • Christina van der Scheer


The fine structure of haustoria isolated from cucumber leaves infected with powdery mildew (Sphaerotheca fuliginea) was studied. Electron microscopy showed a haustorial body of 5–7 μ which contains many mitochondria and is surrounded by an electron lucent sheath of up to 4 μ in thickness. The sheath is limited by a heavily invaginated membrane of about 0.03 μ. The central body is connected with the sheath membrane by fingerlike convoluting protrusions.


Er werd elektronenmicroscopisch onderzoek verricht aan haustoriën, geïsoleerd uit komkommerbladen geïnfecteerd met echte meeldauw (Sphaerotheca fuliginea).

De haustoriën bevatten een centraal lichaam van 5 to 7 μ met veel mitochondriën dat omgeven is door een schede van maximaal 4 μ die de elektronenbundel gemakkelijk doorlaat. De schede wordt begrensd door een geïnvagineerde membraan van ongeveer 0,03 μ.

Het centrale lichaam is via kronkelend verlopende uitstulpingen verbonden met de schedemembraan.


Microscopy Electron Microscopy Plant Pathology Fine Structure Powdery Mildew 
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Copyright information

© Koninklijke Nederlandse Planteziektenkundige Vereniging 1967

Authors and Affiliations

  • H. M. Dekhuijzen
    • 1
    • 2
  • Christina van der Scheer
    • 1
    • 2
  1. 1.Institute for Organic ChemistryT.N.O.Utrecht
  2. 2.Service Institute for Technical Physics in AgricultureWageningen

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