Appressorium

Appressorium

An appressorium is a flattened, hyphal "pressing" organ, from which a minute infection peg grows and enters the host, using turgor pressure capable of punching through even Mylar.

Fungi that exhibit appressorial formation include the necrotroph "Pyrenophora teres".

References

*C.J. Alexopolous, Charles W. Mims, M. Blackwell et al., "Introductory Mycology, 4th ed." (John Wiley and Sons, Hoboken NJ, 2004) ISBN 0-471-52229-5


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  • Appressorium — Der Begriff Appressorium (Plural: Appressorien) oder auch Haftscheibe wird in der Biologie für unterschiedliche Strukturen bzw. Organe benutzt, die sich dicht an andere Objekte oder Lebewesen anlegen können, insbesondere: Die an der Spitze der… …   Deutsch Wikipedia

  • appressorium — noun (plural appressoria) Etymology: New Latin, from Latin apprimere Date: 1897 the flattened thickened tip of a hyphal branch by which some parasitic fungi attach to and penetrate their host …   New Collegiate Dictionary

  • appressorium — /ap re sawr ee euhm, sohr /, n., pl. appressoria / sawr ee euh, sohr /. Mycol. a flattened and thickened tip of a hyphal branch, formed by some parasitic fungi, that facilitates penetration of the host plant. [1895 1900; < NL, equiv. to L… …   Universalium

  • appressorium — noun a bulbous formation produced by parasitic fungi that is well attached to the cuticle of the host and from where a peg shaped hypha is formed that penetrates the cuticle …   Wiktionary

  • appressorium — ap·pres·so·ri·um …   English syllables

  • appressorium — …   Useful english dictionary

  • Fungus — Fungi redirects here. You may be looking for Fungi (music) or Fungus (XM). Fungi Temporal range: Early Devonian–Recent (but see text) …   Wikipedia

  • Pyriculariose — La pyriculariose est une maladie des organes aériens du riz (feuilles, tiges et panicules). Symptômes et dégâts Les symptômes foliaires débutent par l’apparition de lésions blanchâtres qui évoluent vers des lésions nécrotiques en forme de losange …   Wikipédia en Français

  • АПРЕССОРИЙ — англ.appressorium нем.Appressorium; Haftscheibe франц.appressorium см. > …   Фитопатологический словарь-справочник

  • Pyrenophora teres — Scientific classification Kingdom: Fungi Division: Ascomycota Class: Ascomycetes …   Wikipedia

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