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PMID: 5357015 Published · ppublish English Journal Article

Biosynthesis of ethylene. 4-methylmercapto-2-oxobutyric acid: an intermediate in the formation from methionine.

The Biochemical journal ·Vol. 115 ·No. 4 ·1969-12-00 ·Pages 653-61

Mapson LW, March JF, Wardale DA

Abstract

The enzyme responsible for the conversion of methionine into a precursor of ethylene in cauliflower florets is a transaminase. The formation of 4-methyl-mercapto-2-oxobutyric acid by this enzyme has been shown. The oxo acid stimulates the synthesis of ethylene when added to floret tissue, and tracer experiments have shown that (14)C is incorporated into ethylene from the labelled oxo acid. The evidence is consistent with the view that the oxo acid is an intermediate in the formation of ethylene from methionine.

MeSH Terms
Butyrates/metabolism Carbon Isotopes Ethylenes/biosynthesis Keto Acids/metabolism Methionine/metabolism Plants/enzymology,metabolism Transaminases/isolation & purification
Chemicals
Butyrates Carbon Isotopes Ethylenes Keto Acids Methionine Transaminases
Authors & Affiliations
3 authors, click to expand affiliations / ORCID
Mapson L W
March J F
Wardale D A
References (12)
12 references, click to expand
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Article Info
Journal
The Biochemical journal
Abbr.
Biochem J
ISSN
0264-6021
DOI
10.1042/bj1150653
Published
1969-12-00
Pages
653-61
Language
English
Region
England
NLM ID
2984726R
PMCID
PMC1185190
Subset
IM
External Links
PubMed source DOI: 10.1042/bj1150653 PMC Full Text View journal details
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