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Free Radical Research Communications Volume 19, 1993 - Issue 5
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Original Article

A Free Radical Ubiquitously Associated with Senescence in Plants: Evidence for a Quinone

N. M. Atherton Department of Chemistry, The University of Sheffield, Sheffield, S10 2TN, England
,
G. A. F. Hendry NERC Unit of Comparative Plant Ecology, Department of Animal and Plant Sciences, The University of Sheffield, Sheffield, S10 2TN, England
,
K. Möbius Institut für Molekulphysik, Freie Universität Berlin, Arnimallee 14, 1000, Berlin-33, Germany
,
M. Rohrer Institut für Molekulphysik, Freie Universität Berlin, Arnimallee 14, 1000, Berlin-33, Germany
&
J. T. Törring Institut für Molekulphysik, Freie Universität Berlin, Arnimallee 14, 1000, Berlin-33, Germany
Pages 297-301 | Received 09 Jul 1993, Published online: 07 Jul 2009
 
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Abstract

The interpretation of EPR and ENDOR measurements on an organic free radical which appears to be a universal concomitant of senescence in plants is discussed. On the basis of EPR spectra obtained at 95 GHz it is speculated that the radical is derived from a quinone.

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