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Methionine Metabolism and Ethylene Formation in Etiolated Pea Stem Sections 1

Authors
  • Norbert Schilling
  • Hans Kende
Publication Date
Apr 01, 1979
Source
PMC
Keywords
License
Unknown

Abstract

Stem sections of etiolated pea seedlings (Pisum sativum L. cv. Alaska) were incubated overnight on tracer amounts of l-[U-14C]methionine and, on the following morning, on 0.1 millimolar indoleacetic acid to induce ethylene formation. Following the overnight incubation, over 70% of the radioactivity in the soluble fraction was shown to be associated with S-methylmethionine (SMM). The specific radioactivity of the ethylene evolved closely paralleled that of carbon atoms 3 and 4 of methionine extracted from the tissue and was always higher than that determined for carbon atoms 3 and 4 of extracted SMM.

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