Plant Physiol. Drug Metab Dispos
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Plant Physiology 71:434-436 (1983)
© 1983 American Society of Plant Biologists

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Gas Chromatography-Mass Spectroscopy Identification of 1-Aminocyclopropane-1-carboxylic Acid in Compressionwood Vascular Cambium of Pinus contorta Dougl. 1

Rodney A. Savidge2, Gerard M. C. Mutumba3, James K. Heald and Philip F. Wareing

Department of Botany and Microbiology, University College of Wales, Aberystwyth, Dyfed SY23 3DA United Kingdom

Following cation and anion exchange chromatography, 1-aminocyclopropane-1-carboxylic acid (ACC) was converted to the 2,4-dinitrophenyl derivative and then purified by high-performance liquid chromatography (HPLC). After three HPLC steps, endogenous ACC was identified by GCMS in the vascular cambium on the lower side of Pinus contorta Dougl. ssp. latifolia branches in association with compressionwood differentiation, but ACC was not detected in the opposite wood cambial region on the upper sides of the same branches.

The possibility that ACC and ethylene have physiological roles in cambial activity and compressionwood tracheid differentiation is discussed.

2 To whom correspondence and reprint requests should be directed. Present address: Division of Biological Sciences, National Research Council Canada, Ottawa, Canada K1A OR6.

3 Present address: 77 Herongate Road, Wanstead E12, London, United Kingdom.

1 Supported by the National Environment Research Council, United Kingdom.




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Copyright © 1983 by the American Society of Plant Biologists