Antonie van Leeuwenhoek

, Volume 46, Issue 5, pp 435–441 | Cite as

The identification of a self-inhibitor from Syncephalastrum racemosum and its effect upon sporangiospore germination

  • J. A. Hobot
  • K. Gull
Physiology and Growth


High concentrations of Syncephalastrum racemosum spores germinated less readily than low concentrations. Extensive washing of spores alleviated this inhibition of germination. Analysis of the spore washings revealed the main constituent to be nonanoic acid. Exogenously added nonanoic acid was found to mimic the self-inhibition, in that it delayed the time of germ tube emergence and increased the lag before spore swelling commenced.


Germinate Tube Emergence Germ Tube Main Constituent Nonanoic Acid 
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Copyright information

© H. Veenman en Zonen B.V. 1980

Authors and Affiliations

  • J. A. Hobot
    • 1
  • K. Gull
    • 1
  1. 1.Biological LaboratoryUniversity of KentCanterburyUK

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