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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1995 Oct 24;92(22):10084–10088. doi: 10.1073/pnas.92.22.10084

Pathway of terpene excretion by the appendix of Sauromatum guttatum.

H Skubatz 1, D D Kunkel 1, J M Patt 1, W N Howald 1, T G Hartman 1, B J Meeuse 1
PMCID: PMC40740  PMID: 11607584

Abstract

Electron microscopy of the cells of the thermogenic appendix of Sauromatum guttatum has revealed a fusion event between pocket-like structures of the rough endoplasmic reticulum (rER) and the plasma membrane. As a result of the fusion event, many regions of the plasma membrane have paired unit membranes (four leaflets instead of two). The fusion allows the transfer of osmiophilic material from the rER pockets to the plasma membrane, where the osmiophilic material is confined to bilayer, pocket-like structures. A clear correlation is found between the presence of the osmiophilic compound and sesquiterpenes. Prior to heat production, the rER- and plasma-membrane pockets are electron dense, and sesquiterpenes are detectable only in tissue extracts. On the day of heat production, electron-translucent pockets are subsequently found and the stored sesquiterpenes are released to the atmosphere. Three sesquiterpenes have been identified by gas chromatography-mass spectrometry as alpha-copaene and beta- and alpha-caryophyllene.

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Selected References

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  1. Bowles D. J. Endomembrane traffic and targeting in plant cells. Curr Opin Cell Biol. 1990 Aug;2(4):673–680. doi: 10.1016/0955-0674(90)90109-r. [DOI] [PubMed] [Google Scholar]
  2. Picton J. M., Steer M. W. Membrane recycling and the control of secretory activity in pollen tubes. J Cell Sci. 1983 Sep;63:303–310. doi: 10.1242/jcs.63.1.303. [DOI] [PubMed] [Google Scholar]
  3. Skubatz H., Nelson T. A., Meeuse B. J., Bendich A. J. Heat Production in the Voodoo Lily (Sauromatum guttatum) as Monitored by Infrared Thermography. Plant Physiol. 1991 Apr;95(4):1084–1088. doi: 10.1104/pp.95.4.1084. [DOI] [PMC free article] [PubMed] [Google Scholar]

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