Induction of (Z)-8-heptadecene in marine green alga Bryopsis maxima by mechanical wounding

After mechanical wounding of the marine green alga Bryopsis maxima in a phosphate buffer, one main organic component was released to the solution. The organic compound was characterized by a molecular ion at 238 m/z by gas chromatography–mass spectrometry (GC‐MS) and was deduced as 8‐heptadecene by the fragment pattern. To identify the stereochemistry of 8‐heptadecene, synthetic (Z/E)‐8‐heptadecene was coinjected to the solution of wounded B. maxima. Comparing retention times and mass spectra with the synthetic sample, the target hydrocarbon obtained from wounded B. maxima was coincident with (Z)‐8‐heptadecene.