Abstract
Short-chain saturated fatty acids (SCSFA), ranging from pentanoic (C 5) to decanoic acid (C 10), when added at micromolar concentrations to the germination medium of chick-pea seeds, did not significantly affect radicle emergence, although fresh weight diminished. Only heptanoic acid (C 7) and octanoic acid (C 8) stimulated ethylene production and free spermidine and spermine content, whereas putrescine reached a maximum with nonanoic acid (C 9). All the SCSFA tested increased the polyamines (PAs) bound to substances of low M r ; however, only hexanoic acid (C 6) and C 9 acid induced a strong appearance of PAs bound to substances of high M r . Proline synthesis was stimulated in the presence of C 7 acid and C 9 acid, but values lower than control were obtained with the other SCSFA studied.
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