Mechanism of Ethylene Action: Biological Activity of Deuterated Ethylene and Evidence against Isotopic Exchange and cis-trans-Isomerization 1

AUTOR(ES)

Beyer, Elmo M.

RESUMO

Deuterated ethylene was used to study the mechanism of ethylene action in etiolated pea seedlings (Pisum sativum L. cv. Alaska). No apparent differences were observed in the biological activity of tetradeuteroethylene (C2D4) and ordinary ethylene (C2H4) using the pea stem straight growth assay. The absence of an isotopic effect is discussed in relation to the possibility that ethylene binds to a metal or that carbon to hydrogen bonds of ethylene are broken during its mechanism of action.

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