Spitzenkörper

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Four parallel microscopic views of a growing Neurospora crassa hypha, with the Spitzenkörper clearly visible at the tip (e.g. in red at the bottom lane)

The Spitzenkörper (

vesicles and is present in growing hyphal tips, during spore germination, and where branch formation occurs. Its position in the hyphal tip correlates with the direction of hyphal growth. The Spitzenkörper is a part of the endomembrane system in fungi.[1]

The vesicles are organized around a central area that contains a dense meshwork of

microtubules extend into and often through the Spitzenkörper and within the Ascomycota Woronin bodies are found in the apical region near the Spitzenkörper.[2]

The

plasma membrane.[3]

This structure is most commonly found in Dikarya and was at first thought to only occur among them.[4][5][6][7][8] Vargas et al 1993 however were the first to find a Spitzenkörper in another clade, specifically the Allomyces (Blastocladiomycota),[5][9][6][4][7][8] then subsequently Basidiobolus ranarum – which has been placed in several different phyla – was also found to have an SPK.[4] As of 2020 these and the Blastocladiella (also in Blastocladiomycota) are the only known taxa to bear this structure.[8]

References

  1. ^
    PMID 17259546
    .
  2. PMID 15701784
    .
  3. ISBN 978-0-521-80739-5
    .
  4. ^
    S2CID 3912298
    .
  5. ^
    ISBN 978-3-642-55317-2
    .
  6. ^
    PMID 28643626
    .
  7. ^
    PMID 31021528
    .
  8. ^
    PMID 32301582
    .
  9. S2CID 207612261
    .
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