Rapid Metabolism of Propylene by Pea Seedlings

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Abstract
Propylene uptake by intact pea seedlings (Pisum sativum L. cv. Alaska) was easily detected using standard gas chromatographic techniques suggesting rapid metabolism. Comparative studies with highly purified 14C3H6 and 14C2H4 under aseptic conditions verified that propylene was rapidly metabolized and indicated that some aspects of its metabolism were similar to that of ethylene since 14C3H6, like 14C2H4, was oxidized to 14CO2 and incorporated into water-soluble tissue metabolites. However, 14C3H6 was metabolized at a ssubstantially faster rate and unlike 14C2H4 the rate of 14C3H6 tissue incorporation exceeded it rate of oxidation to 14CO2. In addition the neutral 14C-metabolites derived from 14C3H6 were chromatographically distinct from those formed from 14C2H4.