Secretion of Benzaldehyde and Hydrogen Cyanide by the Millipede Pachydesmus crassicutis (Wood)

  title={Secretion of Benzaldehyde and Hydrogen Cyanide by the Millipede Pachydesmus crassicutis (Wood)},
  author={Murray Sheldon Blum and Joseph Woodring},
  pages={512 - 513}
The millipede Pachydesmus crassicutis (Wood) secretes a mixture of benzaldehyde and hydrogen cyanide when it is disturbed. These compounds are secreted through paired glands located on 11 of the notal projections of adult millipedes. Experiments with the imported fire ant demonstrate that these natural products serve a defensive function. 

Benzoyl cyanide in the defensive secretion of polydesmoid millipeds

A novel cyanogenetic compound, benzoyl cyanide, was isolated from the defensive secretion of 3 polydesmoid millipeds (Pseudopolydesmus serratus, Apheloria corrugata and A. trimaculata). The secretion

Defensive secretion: biosynthesis of hydrogen cyanide and benzaldehyde from phenylalanine by a millipede

The polydesmid millipede, Oxidus gracilis, is able to convert dietary phenylalanine into benzaldehyde and hydrogen cyanide, components of its defensive secretion, and it is presumed that mandelonitrile is a precursor of HCN and benzaldehyde as has been demonstrated in plants.

Benzaldehyde: defensive secretion of a harvester ant.

Mandelonitrile in larval secretion of mountain ash sawfly,Pristiphora geniculata (Hymenoptera: Tenthredinidae)

The larval defensive secretion of the mountain ash sawfly,Pristiphora geniculata, contains seven volatile components. They include benz-aldehyde, borneol, bornyl acetate, mandelonitrile, and C14,

Benzoyl cyanide and mandelonitrile benzoate in the defensive secretions of millipedes

Analyses of the defensive secretions of 17 species of polydesmoid millipedes show that other chemicals besides HCN and benzaldehyde are liberated during cyanogenesis, providing an initial chemotaxonomic basis for distinguishing between various polydesMoid taxa.

Cyanogenesis and the role of cyanogenic compounds in insects.

The cyanogenic system comprising cyanogenic glycosides, hydroxynitriles (cyanohydrins), beta-glucosidases and nitrile lyases is widespread in the plant kingdom but also occurs in several arthropods, and their function as defensive compounds seems likely on the basis of their ability to generate HCN and their localization.


A nitriloside is a naturally occurring or synthetic compound which upon hydrolysis by a beta-glucosidase yields a molecule of a non-sugar, or aglycone, a molecule of free hydrogen cyanide, and one or

1-Octen-3-ol Together with Geosmin: New Secretion Compounds from a Polydesmid Millipede, Niponia nodulosa

Biological activity of 1-octen-3-ol suggests that this compound is involved in intraspecific communication in this millipede and may play a role as an alarm pheromone.



Observations on the mechanism of a tanning reaction in Periplaneta and Blatta

  • P. BrunetP. W. Kent
  • Biology
    Proceedings of the Royal Society of London. Series B - Biological Sciences
  • 1955
This is thought to be the first report of the isolaticfn of a β-glucoside of protocatechuic acid from natural sources and of its participation in biological processes.

Release of Hydrocyanic Acid from Crushed Tissues of all Stages in the Life-Cycle of Species of the Zygaeninae (Lepidoptera)

Release of Hydrocyanic Acid from Crushed Tissues of all Stages in the Life-Cycle of Species of the Zygaeninae (Lepidoptera)

The Exhalation of Ozone by Flowering Plants

  • J. Anders
  • Environmental Science
    The American Naturalist
  • 1884
I purpose to adduce evidence with a view of establishing a newly-discovered source in nature of this important substance, which is doubtless nature's means of ridding the authors' atmosphere of organic impurities, and disease germs.

An Introduction to the Chemistry of Plant Products

THE second edition of this standard work has been largely rewritten and considerably amplified, particularly in the chapters dealing with those sections of plant metabolism which have been undergoing

Infrared Spectra of Complex Molecules (Wiley

  • New York,
  • 1954